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docker-mailserver/docs/content/config/advanced/kubernetes.md

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docs(refactor): Large refactor + additions + fixes Consistency pass, formatting cleanup and fixes, introduce admonitions, add front-matter. --- docs: Add front-matter --- docs: Fix and format links - Some links were invalid (eg files moved or renamed) - Some were valid but had invalid section headers (content removed or migrated) - Some use `http://` instead of `https://` when the website supports a secure connection. - Some already used the `[name][reference]` convention but often with a number that wasn't as useful for maintenance. - All referenced docs needed URLs replaced. Opted for the `[name][reference]` approach to group them all clearly at the bottom of the doc, especially with the relative URLs and in some cases many duplicate entries. - All `tomav` references from the original repo prior to switch to an organization have been corrected. - Minor cosmetic changes to the `name` part of the URL, such as for referencing issues to be consistent. - Some small changes to text body, usually due to duplicate URL reference that was unnecessary (open relay, youtous) - Switched other links to use the `[name][reference]` format when there was a large group of URLs such as wikipedia or kubernetes. Github repos that reference projects related to `docker-mailserver` also got placed here so they're noticed better by maintainers. This also helped quite a bit with `mermaid` external links that are very long. - There was a Github Wiki supported syntax in use `[[name | link]]` for `fetchmail` page that isn't compatible by default with MkDocs (needs a plugin), converted to `[name][reference]` instead since it's a relative link. --- docs: Update commit link for LDAP override script Logic moved to another file, keeping the permalink commit reference so it's unaffected by any changes in the file referenced in future. --- docs: Heading corrections Consistency pass. Helps with the Table of Contents (top-right UI) aka Document Outline. docs: codefence cleanup --- docs: misc cleanup --- docs: Add Admonitions Switches `<details>` usage for collapsible admonitions (`???`) while other text content is switched to the visually more distinct admoniton (`!!!` or `???+`) style. This does affect editor syntax highlighting a bit and markdown linting as it's custom non-standard markdown syntax.
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---
docs: Update metadata and links to new locations Also removed the FAQ inline heading link for Rancher. It's not a relevant link (as the question already expects knowledge of Rancher), and breaks out of the bg colour heading style due to the HTML generation logic from mkdocs.
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title: 'Advanced | Kubernetes'
docs(refactor): Large refactor + additions + fixes Consistency pass, formatting cleanup and fixes, introduce admonitions, add front-matter. --- docs: Add front-matter --- docs: Fix and format links - Some links were invalid (eg files moved or renamed) - Some were valid but had invalid section headers (content removed or migrated) - Some use `http://` instead of `https://` when the website supports a secure connection. - Some already used the `[name][reference]` convention but often with a number that wasn't as useful for maintenance. - All referenced docs needed URLs replaced. Opted for the `[name][reference]` approach to group them all clearly at the bottom of the doc, especially with the relative URLs and in some cases many duplicate entries. - All `tomav` references from the original repo prior to switch to an organization have been corrected. - Minor cosmetic changes to the `name` part of the URL, such as for referencing issues to be consistent. - Some small changes to text body, usually due to duplicate URL reference that was unnecessary (open relay, youtous) - Switched other links to use the `[name][reference]` format when there was a large group of URLs such as wikipedia or kubernetes. Github repos that reference projects related to `docker-mailserver` also got placed here so they're noticed better by maintainers. This also helped quite a bit with `mermaid` external links that are very long. - There was a Github Wiki supported syntax in use `[[name | link]]` for `fetchmail` page that isn't compatible by default with MkDocs (needs a plugin), converted to `[name][reference]` instead since it's a relative link. --- docs: Update commit link for LDAP override script Logic moved to another file, keeping the permalink commit reference so it's unaffected by any changes in the file referenced in future. --- docs: Heading corrections Consistency pass. Helps with the Table of Contents (top-right UI) aka Document Outline. docs: codefence cleanup --- docs: misc cleanup --- docs: Add Admonitions Switches `<details>` usage for collapsible admonitions (`???`) while other text content is switched to the visually more distinct admoniton (`!!!` or `???+`) style. This does affect editor syntax highlighting a bit and markdown linting as it's custom non-standard markdown syntax.
2021-03-01 11:41:19 +01:00
---
## Deployment Example
Add in-Kubernetes usage docs
2017-06-27 21:23:54 +02:00
docs(refactor): Large refactor + additions + fixes Consistency pass, formatting cleanup and fixes, introduce admonitions, add front-matter. --- docs: Add front-matter --- docs: Fix and format links - Some links were invalid (eg files moved or renamed) - Some were valid but had invalid section headers (content removed or migrated) - Some use `http://` instead of `https://` when the website supports a secure connection. - Some already used the `[name][reference]` convention but often with a number that wasn't as useful for maintenance. - All referenced docs needed URLs replaced. Opted for the `[name][reference]` approach to group them all clearly at the bottom of the doc, especially with the relative URLs and in some cases many duplicate entries. - All `tomav` references from the original repo prior to switch to an organization have been corrected. - Minor cosmetic changes to the `name` part of the URL, such as for referencing issues to be consistent. - Some small changes to text body, usually due to duplicate URL reference that was unnecessary (open relay, youtous) - Switched other links to use the `[name][reference]` format when there was a large group of URLs such as wikipedia or kubernetes. Github repos that reference projects related to `docker-mailserver` also got placed here so they're noticed better by maintainers. This also helped quite a bit with `mermaid` external links that are very long. - There was a Github Wiki supported syntax in use `[[name | link]]` for `fetchmail` page that isn't compatible by default with MkDocs (needs a plugin), converted to `[name][reference]` instead since it's a relative link. --- docs: Update commit link for LDAP override script Logic moved to another file, keeping the permalink commit reference so it's unaffected by any changes in the file referenced in future. --- docs: Heading corrections Consistency pass. Helps with the Table of Contents (top-right UI) aka Document Outline. docs: codefence cleanup --- docs: misc cleanup --- docs: Add Admonitions Switches `<details>` usage for collapsible admonitions (`???`) while other text content is switched to the visually more distinct admoniton (`!!!` or `???+`) style. This does affect editor syntax highlighting a bit and markdown linting as it's custom non-standard markdown syntax.
2021-03-01 11:41:19 +01:00
There is nothing much in deploying mailserver to Kubernetes itself. The things are pretty same as in [`docker-compose.yml`][github-file-compose], but with Kubernetes syntax.
Add in-Kubernetes usage docs
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docs(refactor): Convert more content to use admonitions + improvements
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??? example "ConfigMap"
Add in-Kubernetes usage docs
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docs(refactor): Convert more content to use admonitions + improvements
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```yaml
apiVersion: v1
kind: Namespace
metadata:
name: mailserver
---
kind: ConfigMap
apiVersion: v1
metadata:
name: mailserver.env.config
namespace: mailserver
labels:
app: mailserver
data:
OVERRIDE_HOSTNAME: example.com
ENABLE_FETCHMAIL: "0"
FETCHMAIL_POLL: "120"
ENABLE_SPAMASSASSIN: "0"
ENABLE_CLAMAV: "0"
ENABLE_FAIL2BAN: "0"
ENABLE_POSTGREY: "0"
ONE_DIR: "1"
DMS_DEBUG: "0"
---
kind: ConfigMap
apiVersion: v1
metadata:
name: mailserver.config
namespace: mailserver
labels:
app: mailserver
data:
postfix-accounts.cf: |
user1@example.com|{SHA512-CRYPT}$6$2YpW1nYtPBs2yLYS$z.5PGH1OEzsHHNhl3gJrc3D.YMZkvKw/vp.r5WIiwya6z7P/CQ9GDEJDr2G2V0cAfjDFeAQPUoopsuWPXLk3u1
postfix-virtual.cf: |
alias1@example.com user1@dexample.com
#dovecot.cf: |
# service stats {
# unix_listener stats-reader {
# group = docker
# mode = 0666
# }
# unix_listener stats-writer {
# group = docker
# mode = 0666
# }
# }
SigningTable: |
*@example.com mail._domainkey.example.com
KeyTable: |
mail._domainkey.example.com example.com:mail:/etc/opendkim/keys/example.com-mail.key
TrustedHosts: |
127.0.0.1
localhost
#user-patches.sh: |
# #!/bin/bash
#fetchmail.cf: |
```
??? example "Secret"
```yaml
apiVersion: v1
kind: Namespace
metadata:
name: mailserver
---
kind: Secret
apiVersion: v1
metadata:
name: mailserver.opendkim.keys
namespace: mailserver
labels:
app: mailserver
type: Opaque
data:
example.com-mail.key: 'base64-encoded-DKIM-key'
```
updated the deployment manifests. Tested with Kubernetes 1.17 and docker-mailserver v6.2.1
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docs(refactor): Convert more content to use admonitions + improvements
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??? example "Service"
Add in-Kubernetes usage docs
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docs(refactor): Convert more content to use admonitions + improvements
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```yaml
apiVersion: v1
kind: Namespace
metadata:
name: mailserver
---
kind: Service
apiVersion: v1
Add in-Kubernetes usage docs
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metadata:
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name: mailserver
namespace: mailserver
Add in-Kubernetes usage docs
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labels:
app: mailserver
spec:
docs(refactor): Convert more content to use admonitions + improvements
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selector:
app: mailserver
ports:
- name: smtp
port: 25
targetPort: smtp
- name: smtp-secure
port: 465
targetPort: smtp-secure
- name: smtp-auth
port: 587
targetPort: smtp-auth
- name: imap
port: 143
targetPort: imap
- name: imap-secure
port: 993
targetPort: imap-secure
```
??? example "Deployment"
```yaml
apiVersion: v1
kind: Namespace
metadata:
name: mailserver
---
apiVersion: apps/v1
kind: Deployment
metadata:
name: mailserver
namespace: mailserver
spec:
replicas: 1
selector:
matchLabels:
app: mailserver
template:
metadata:
labels:
app: mailserver
role: mail
tier: backend
spec:
#nodeSelector:
# kubernetes.io/hostname: local.k8s
#initContainers:
#- name: init-myservice
# image: busybox
# command: ["/bin/sh", "-c", "cp /tmp/user-patches.sh /tmp/files"]
# volumeMounts:
# - name: config
# subPath: user-patches.sh
# mountPath: /tmp/user-patches.sh
# readOnly: true
# - name: tmp-files
# mountPath: /tmp/files
containers:
- name: docker-mailserver
image: mailserver/docker-mailserver:latest
imagePullPolicy: Always
chore(docs): Update Kubernetes CRI-O Capability Description (#2006) Co-authored-by: Georg Lauterbach <44545919+aendeavor@users.noreply.github.com>
2021-05-26 10:35:13 +02:00
securityContext:
capabilities:
# If Fail2Ban is not enabled, you can remove NET_ADMIN.
# If you are running on CRI-O, you will need the SYS_CHROOT capability,
# as it is no longer a default capability.
add: ["NET_ADMIN", "SYS_PTRACE", "SYS_CHROOT" ]
docs(refactor): Convert more content to use admonitions + improvements
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volumeMounts:
- name: config
subPath: postfix-accounts.cf
mountPath: /tmp/docker-mailserver/postfix-accounts.cf
readOnly: true
#- name: config
# subPath: postfix-main.cf
# mountPath: /tmp/docker-mailserver/postfix-main.cf
# readOnly: true
- name: config
subPath: postfix-virtual.cf
mountPath: /tmp/docker-mailserver/postfix-virtual.cf
readOnly: true
- name: config
subPath: fetchmail.cf
mountPath: /tmp/docker-mailserver/fetchmail.cf
readOnly: true
- name: config
subPath: dovecot.cf
mountPath: /tmp/docker-mailserver/dovecot.cf
readOnly: true
#- name: config
# subPath: user1.example.com.dovecot.sieve
# mountPath: /tmp/docker-mailserver/user1@example.com.dovecot.sieve
# readOnly: true
#- name: tmp-files
# subPath: user-patches.sh
# mountPath: /tmp/docker-mailserver/user-patches.sh
- name: config
subPath: SigningTable
mountPath: /tmp/docker-mailserver/opendkim/SigningTable
readOnly: true
- name: config
subPath: KeyTable
mountPath: /tmp/docker-mailserver/opendkim/KeyTable
readOnly: true
- name: config
subPath: TrustedHosts
mountPath: /tmp/docker-mailserver/opendkim/TrustedHosts
readOnly: true
- name: opendkim-keys
mountPath: /tmp/docker-mailserver/opendkim/keys
readOnly: true
- name: data
mountPath: /var/mail
subPath: data
- name: data
mountPath: /var/mail-state
subPath: state
- name: data
mountPath: /var/log/mail
subPath: log
ports:
- name: smtp
containerPort: 25
protocol: TCP
- name: smtp-secure
containerPort: 465
protocol: TCP
- name: smtp-auth
containerPort: 587
- name: imap
containerPort: 143
protocol: TCP
- name: imap-secure
containerPort: 993
protocol: TCP
envFrom:
- configMapRef:
name: mailserver.env.config
volumes:
- name: config
configMap:
name: mailserver.config
- name: opendkim-keys
secret:
secretName: mailserver.opendkim.keys
- name: data
persistentVolumeClaim:
claimName: mail-storage
- name: tmp-files
emptyDir: {}
```
!!! warning
docs(refactor): Large refactor + additions + fixes Consistency pass, formatting cleanup and fixes, introduce admonitions, add front-matter. --- docs: Add front-matter --- docs: Fix and format links - Some links were invalid (eg files moved or renamed) - Some were valid but had invalid section headers (content removed or migrated) - Some use `http://` instead of `https://` when the website supports a secure connection. - Some already used the `[name][reference]` convention but often with a number that wasn't as useful for maintenance. - All referenced docs needed URLs replaced. Opted for the `[name][reference]` approach to group them all clearly at the bottom of the doc, especially with the relative URLs and in some cases many duplicate entries. - All `tomav` references from the original repo prior to switch to an organization have been corrected. - Minor cosmetic changes to the `name` part of the URL, such as for referencing issues to be consistent. - Some small changes to text body, usually due to duplicate URL reference that was unnecessary (open relay, youtous) - Switched other links to use the `[name][reference]` format when there was a large group of URLs such as wikipedia or kubernetes. Github repos that reference projects related to `docker-mailserver` also got placed here so they're noticed better by maintainers. This also helped quite a bit with `mermaid` external links that are very long. - There was a Github Wiki supported syntax in use `[[name | link]]` for `fetchmail` page that isn't compatible by default with MkDocs (needs a plugin), converted to `[name][reference]` instead since it's a relative link. --- docs: Update commit link for LDAP override script Logic moved to another file, keeping the permalink commit reference so it's unaffected by any changes in the file referenced in future. --- docs: Heading corrections Consistency pass. Helps with the Table of Contents (top-right UI) aka Document Outline. docs: codefence cleanup --- docs: misc cleanup --- docs: Add Admonitions Switches `<details>` usage for collapsible admonitions (`???`) while other text content is switched to the visually more distinct admoniton (`!!!` or `???+`) style. This does affect editor syntax highlighting a bit and markdown linting as it's custom non-standard markdown syntax.
2021-03-01 11:41:19 +01:00
Any sensitive data (keys, etc) should be deployed via [Secrets][k8s-config-secret]. Other configuration just fits well into [ConfigMaps][k8s-config-pod].
Add in-Kubernetes usage docs
2017-06-27 21:23:54 +02:00
docs(refactor): Large refactor + additions + fixes Consistency pass, formatting cleanup and fixes, introduce admonitions, add front-matter. --- docs: Add front-matter --- docs: Fix and format links - Some links were invalid (eg files moved or renamed) - Some were valid but had invalid section headers (content removed or migrated) - Some use `http://` instead of `https://` when the website supports a secure connection. - Some already used the `[name][reference]` convention but often with a number that wasn't as useful for maintenance. - All referenced docs needed URLs replaced. Opted for the `[name][reference]` approach to group them all clearly at the bottom of the doc, especially with the relative URLs and in some cases many duplicate entries. - All `tomav` references from the original repo prior to switch to an organization have been corrected. - Minor cosmetic changes to the `name` part of the URL, such as for referencing issues to be consistent. - Some small changes to text body, usually due to duplicate URL reference that was unnecessary (open relay, youtous) - Switched other links to use the `[name][reference]` format when there was a large group of URLs such as wikipedia or kubernetes. Github repos that reference projects related to `docker-mailserver` also got placed here so they're noticed better by maintainers. This also helped quite a bit with `mermaid` external links that are very long. - There was a Github Wiki supported syntax in use `[[name | link]]` for `fetchmail` page that isn't compatible by default with MkDocs (needs a plugin), converted to `[name][reference]` instead since it's a relative link. --- docs: Update commit link for LDAP override script Logic moved to another file, keeping the permalink commit reference so it's unaffected by any changes in the file referenced in future. --- docs: Heading corrections Consistency pass. Helps with the Table of Contents (top-right UI) aka Document Outline. docs: codefence cleanup --- docs: misc cleanup --- docs: Add Admonitions Switches `<details>` usage for collapsible admonitions (`???`) while other text content is switched to the visually more distinct admoniton (`!!!` or `???+`) style. This does affect editor syntax highlighting a bit and markdown linting as it's custom non-standard markdown syntax.
2021-03-01 11:41:19 +01:00
!!! note
Make sure that [Pod][k8s-workload-pod] is [assigned][k8s-assign-pod-node] to specific [Node][k8s-nodes] in case you're using volume for data directly with `hostPath`. Otherwise Pod can be rescheduled on a different Node and previous data won't be found. Except the case when you're using some shared filesystem on your Nodes.
chore(docs): Update Kubernetes CRI-O Capability Description (#2006) Co-authored-by: Georg Lauterbach <44545919+aendeavor@users.noreply.github.com>
2021-05-26 10:35:13 +02:00
!!! note
If you experience issues with processes crashing showing an error like `operation not permitted` or `postfix/pickup[987]: fatal: chroot(/var/spool/postfix): Operation not permitted`, then you should add the `SYS_CHROOT` capability. Runtimes like CRI-O do not ship with this capability by default.
Add in-Kubernetes usage docs
2017-06-27 21:23:54 +02:00
docs(refactor): Large refactor + additions + fixes Consistency pass, formatting cleanup and fixes, introduce admonitions, add front-matter. --- docs: Add front-matter --- docs: Fix and format links - Some links were invalid (eg files moved or renamed) - Some were valid but had invalid section headers (content removed or migrated) - Some use `http://` instead of `https://` when the website supports a secure connection. - Some already used the `[name][reference]` convention but often with a number that wasn't as useful for maintenance. - All referenced docs needed URLs replaced. Opted for the `[name][reference]` approach to group them all clearly at the bottom of the doc, especially with the relative URLs and in some cases many duplicate entries. - All `tomav` references from the original repo prior to switch to an organization have been corrected. - Minor cosmetic changes to the `name` part of the URL, such as for referencing issues to be consistent. - Some small changes to text body, usually due to duplicate URL reference that was unnecessary (open relay, youtous) - Switched other links to use the `[name][reference]` format when there was a large group of URLs such as wikipedia or kubernetes. Github repos that reference projects related to `docker-mailserver` also got placed here so they're noticed better by maintainers. This also helped quite a bit with `mermaid` external links that are very long. - There was a Github Wiki supported syntax in use `[[name | link]]` for `fetchmail` page that isn't compatible by default with MkDocs (needs a plugin), converted to `[name][reference]` instead since it's a relative link. --- docs: Update commit link for LDAP override script Logic moved to another file, keeping the permalink commit reference so it's unaffected by any changes in the file referenced in future. --- docs: Heading corrections Consistency pass. Helps with the Table of Contents (top-right UI) aka Document Outline. docs: codefence cleanup --- docs: misc cleanup --- docs: Add Admonitions Switches `<details>` usage for collapsible admonitions (`???`) while other text content is switched to the visually more distinct admoniton (`!!!` or `???+`) style. This does affect editor syntax highlighting a bit and markdown linting as it's custom non-standard markdown syntax.
2021-03-01 11:41:19 +01:00
## Exposing to the Outside World
Add in-Kubernetes usage docs
2017-06-27 21:23:54 +02:00
The hard part with Kubernetes is to expose deployed mailserver to outside world. Kubernetes provides multiple ways for doing that. Each has its downsides and complexity.
docs(refactor): Large refactor + additions + fixes Consistency pass, formatting cleanup and fixes, introduce admonitions, add front-matter. --- docs: Add front-matter --- docs: Fix and format links - Some links were invalid (eg files moved or renamed) - Some were valid but had invalid section headers (content removed or migrated) - Some use `http://` instead of `https://` when the website supports a secure connection. - Some already used the `[name][reference]` convention but often with a number that wasn't as useful for maintenance. - All referenced docs needed URLs replaced. Opted for the `[name][reference]` approach to group them all clearly at the bottom of the doc, especially with the relative URLs and in some cases many duplicate entries. - All `tomav` references from the original repo prior to switch to an organization have been corrected. - Minor cosmetic changes to the `name` part of the URL, such as for referencing issues to be consistent. - Some small changes to text body, usually due to duplicate URL reference that was unnecessary (open relay, youtous) - Switched other links to use the `[name][reference]` format when there was a large group of URLs such as wikipedia or kubernetes. Github repos that reference projects related to `docker-mailserver` also got placed here so they're noticed better by maintainers. This also helped quite a bit with `mermaid` external links that are very long. - There was a Github Wiki supported syntax in use `[[name | link]]` for `fetchmail` page that isn't compatible by default with MkDocs (needs a plugin), converted to `[name][reference]` instead since it's a relative link. --- docs: Update commit link for LDAP override script Logic moved to another file, keeping the permalink commit reference so it's unaffected by any changes in the file referenced in future. --- docs: Heading corrections Consistency pass. Helps with the Table of Contents (top-right UI) aka Document Outline. docs: codefence cleanup --- docs: misc cleanup --- docs: Add Admonitions Switches `<details>` usage for collapsible admonitions (`???`) while other text content is switched to the visually more distinct admoniton (`!!!` or `???+`) style. This does affect editor syntax highlighting a bit and markdown linting as it's custom non-standard markdown syntax.
2021-03-01 11:41:19 +01:00
The major problem with exposing mailserver to outside world in Kubernetes is to [preserve real client IP][k8s-service-source-ip]. Real client IP is required by mailserver for performing IP-based SPF checks and spam checks.
Preserving real client IP is relatively [non-trivial in Kubernetes][k8s-service-source-ip] and most exposing ways do not provide it. So, it's up to you to decide which exposing way suits better your needs in a price of complexity.
Add in-Kubernetes usage docs
2017-06-27 21:23:54 +02:00
docs(refactor): Large refactor + additions + fixes Consistency pass, formatting cleanup and fixes, introduce admonitions, add front-matter. --- docs: Add front-matter --- docs: Fix and format links - Some links were invalid (eg files moved or renamed) - Some were valid but had invalid section headers (content removed or migrated) - Some use `http://` instead of `https://` when the website supports a secure connection. - Some already used the `[name][reference]` convention but often with a number that wasn't as useful for maintenance. - All referenced docs needed URLs replaced. Opted for the `[name][reference]` approach to group them all clearly at the bottom of the doc, especially with the relative URLs and in some cases many duplicate entries. - All `tomav` references from the original repo prior to switch to an organization have been corrected. - Minor cosmetic changes to the `name` part of the URL, such as for referencing issues to be consistent. - Some small changes to text body, usually due to duplicate URL reference that was unnecessary (open relay, youtous) - Switched other links to use the `[name][reference]` format when there was a large group of URLs such as wikipedia or kubernetes. Github repos that reference projects related to `docker-mailserver` also got placed here so they're noticed better by maintainers. This also helped quite a bit with `mermaid` external links that are very long. - There was a Github Wiki supported syntax in use `[[name | link]]` for `fetchmail` page that isn't compatible by default with MkDocs (needs a plugin), converted to `[name][reference]` instead since it's a relative link. --- docs: Update commit link for LDAP override script Logic moved to another file, keeping the permalink commit reference so it's unaffected by any changes in the file referenced in future. --- docs: Heading corrections Consistency pass. Helps with the Table of Contents (top-right UI) aka Document Outline. docs: codefence cleanup --- docs: misc cleanup --- docs: Add Admonitions Switches `<details>` usage for collapsible admonitions (`???`) while other text content is switched to the visually more distinct admoniton (`!!!` or `???+`) style. This does affect editor syntax highlighting a bit and markdown linting as it's custom non-standard markdown syntax.
2021-03-01 11:41:19 +01:00
If you do not require SPF checks for incoming mails you may disable them in [Postfix configuration][docs-postfix] by dropping following line (which removes `check_policy_service unix:private/policyd-spf` option):
Add in-Kubernetes usage docs
2017-06-27 21:23:54 +02:00
docs(refactor): Convert more content to use admonitions + improvements
2021-03-02 17:39:06 +01:00
!!! example
Add in-Kubernetes usage docs
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docs(refactor): Convert more content to use admonitions + improvements
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```yaml
kind: ConfigMap
apiVersion: v1
metadata:
name: mailserver.config
labels:
app: mailserver
data:
postfix-main.cf: |
smtpd_recipient_restrictions = permit_sasl_authenticated, permit_mynetworks, reject_unauth_destination, reject_unauth_pipelining, reject_invalid_helo_hostname, reject_non_fqdn_helo_hostname, reject_unknown_recipient_domain, reject_rbl_client zen.spamhaus.org, reject_rbl_client bl.spamcop.net
# ...
Add in-Kubernetes usage docs
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docs(refactor): Convert more content to use admonitions + improvements
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---
kind: Deployment
apiVersion: extensions/v1beta1
metadata:
name: mailserver
# ...
volumeMounts:
- name: config
subPath: postfix-main.cf
mountPath: /tmp/docker-mailserver/postfix-main.cf
readOnly: true
```
Add in-Kubernetes usage docs
2017-06-27 21:23:54 +02:00
### External IPs Service
docs(refactor): Large refactor + additions + fixes Consistency pass, formatting cleanup and fixes, introduce admonitions, add front-matter. --- docs: Add front-matter --- docs: Fix and format links - Some links were invalid (eg files moved or renamed) - Some were valid but had invalid section headers (content removed or migrated) - Some use `http://` instead of `https://` when the website supports a secure connection. - Some already used the `[name][reference]` convention but often with a number that wasn't as useful for maintenance. - All referenced docs needed URLs replaced. Opted for the `[name][reference]` approach to group them all clearly at the bottom of the doc, especially with the relative URLs and in some cases many duplicate entries. - All `tomav` references from the original repo prior to switch to an organization have been corrected. - Minor cosmetic changes to the `name` part of the URL, such as for referencing issues to be consistent. - Some small changes to text body, usually due to duplicate URL reference that was unnecessary (open relay, youtous) - Switched other links to use the `[name][reference]` format when there was a large group of URLs such as wikipedia or kubernetes. Github repos that reference projects related to `docker-mailserver` also got placed here so they're noticed better by maintainers. This also helped quite a bit with `mermaid` external links that are very long. - There was a Github Wiki supported syntax in use `[[name | link]]` for `fetchmail` page that isn't compatible by default with MkDocs (needs a plugin), converted to `[name][reference]` instead since it's a relative link. --- docs: Update commit link for LDAP override script Logic moved to another file, keeping the permalink commit reference so it's unaffected by any changes in the file referenced in future. --- docs: Heading corrections Consistency pass. Helps with the Table of Contents (top-right UI) aka Document Outline. docs: codefence cleanup --- docs: misc cleanup --- docs: Add Admonitions Switches `<details>` usage for collapsible admonitions (`???`) while other text content is switched to the visually more distinct admoniton (`!!!` or `???+`) style. This does affect editor syntax highlighting a bit and markdown linting as it's custom non-standard markdown syntax.
2021-03-01 11:41:19 +01:00
The simplest way is to expose mailserver as a [Service][k8s-network-service] with [external IPs][k8s-network-external-ip].
Add in-Kubernetes usage docs
2017-06-27 21:23:54 +02:00
docs(refactor): Convert more content to use admonitions + improvements
2021-03-02 17:39:06 +01:00
!!! example
```yaml
kind: Service
apiVersion: v1
metadata:
name: mailserver
labels:
app: mailserver
spec:
selector:
app: mailserver
ports:
- name: smtp
port: 25
targetPort: smtp
# ...
externalIPs:
- 80.11.12.10
```
Add in-Kubernetes usage docs
2017-06-27 21:23:54 +02:00
docs(refactor): Large refactor + additions + fixes Consistency pass, formatting cleanup and fixes, introduce admonitions, add front-matter. --- docs: Add front-matter --- docs: Fix and format links - Some links were invalid (eg files moved or renamed) - Some were valid but had invalid section headers (content removed or migrated) - Some use `http://` instead of `https://` when the website supports a secure connection. - Some already used the `[name][reference]` convention but often with a number that wasn't as useful for maintenance. - All referenced docs needed URLs replaced. Opted for the `[name][reference]` approach to group them all clearly at the bottom of the doc, especially with the relative URLs and in some cases many duplicate entries. - All `tomav` references from the original repo prior to switch to an organization have been corrected. - Minor cosmetic changes to the `name` part of the URL, such as for referencing issues to be consistent. - Some small changes to text body, usually due to duplicate URL reference that was unnecessary (open relay, youtous) - Switched other links to use the `[name][reference]` format when there was a large group of URLs such as wikipedia or kubernetes. Github repos that reference projects related to `docker-mailserver` also got placed here so they're noticed better by maintainers. This also helped quite a bit with `mermaid` external links that are very long. - There was a Github Wiki supported syntax in use `[[name | link]]` for `fetchmail` page that isn't compatible by default with MkDocs (needs a plugin), converted to `[name][reference]` instead since it's a relative link. --- docs: Update commit link for LDAP override script Logic moved to another file, keeping the permalink commit reference so it's unaffected by any changes in the file referenced in future. --- docs: Heading corrections Consistency pass. Helps with the Table of Contents (top-right UI) aka Document Outline. docs: codefence cleanup --- docs: misc cleanup --- docs: Add Admonitions Switches `<details>` usage for collapsible admonitions (`???`) while other text content is switched to the visually more distinct admoniton (`!!!` or `???+`) style. This does affect editor syntax highlighting a bit and markdown linting as it's custom non-standard markdown syntax.
2021-03-01 11:41:19 +01:00
**Downsides**
Add in-Kubernetes usage docs
2017-06-27 21:23:54 +02:00
- __Real client IP is not preserved__, so SPF check of incoming mail will fail.
- Requirement to specify exposed IPs explicitly.
### Proxy port to Service
docs(refactor): Large refactor + additions + fixes Consistency pass, formatting cleanup and fixes, introduce admonitions, add front-matter. --- docs: Add front-matter --- docs: Fix and format links - Some links were invalid (eg files moved or renamed) - Some were valid but had invalid section headers (content removed or migrated) - Some use `http://` instead of `https://` when the website supports a secure connection. - Some already used the `[name][reference]` convention but often with a number that wasn't as useful for maintenance. - All referenced docs needed URLs replaced. Opted for the `[name][reference]` approach to group them all clearly at the bottom of the doc, especially with the relative URLs and in some cases many duplicate entries. - All `tomav` references from the original repo prior to switch to an organization have been corrected. - Minor cosmetic changes to the `name` part of the URL, such as for referencing issues to be consistent. - Some small changes to text body, usually due to duplicate URL reference that was unnecessary (open relay, youtous) - Switched other links to use the `[name][reference]` format when there was a large group of URLs such as wikipedia or kubernetes. Github repos that reference projects related to `docker-mailserver` also got placed here so they're noticed better by maintainers. This also helped quite a bit with `mermaid` external links that are very long. - There was a Github Wiki supported syntax in use `[[name | link]]` for `fetchmail` page that isn't compatible by default with MkDocs (needs a plugin), converted to `[name][reference]` instead since it's a relative link. --- docs: Update commit link for LDAP override script Logic moved to another file, keeping the permalink commit reference so it's unaffected by any changes in the file referenced in future. --- docs: Heading corrections Consistency pass. Helps with the Table of Contents (top-right UI) aka Document Outline. docs: codefence cleanup --- docs: misc cleanup --- docs: Add Admonitions Switches `<details>` usage for collapsible admonitions (`???`) while other text content is switched to the visually more distinct admoniton (`!!!` or `???+`) style. This does affect editor syntax highlighting a bit and markdown linting as it's custom non-standard markdown syntax.
2021-03-01 11:41:19 +01:00
The [Proxy Pod][k8s-proxy-service] helps to avoid necessity of specifying external IPs explicitly. This comes in price of complexity: you must deploy Proxy Pod on each [Node][k8s-nodes] you want to expose mailserver on.
Add in-Kubernetes usage docs
2017-06-27 21:23:54 +02:00
docs(refactor): Large refactor + additions + fixes Consistency pass, formatting cleanup and fixes, introduce admonitions, add front-matter. --- docs: Add front-matter --- docs: Fix and format links - Some links were invalid (eg files moved or renamed) - Some were valid but had invalid section headers (content removed or migrated) - Some use `http://` instead of `https://` when the website supports a secure connection. - Some already used the `[name][reference]` convention but often with a number that wasn't as useful for maintenance. - All referenced docs needed URLs replaced. Opted for the `[name][reference]` approach to group them all clearly at the bottom of the doc, especially with the relative URLs and in some cases many duplicate entries. - All `tomav` references from the original repo prior to switch to an organization have been corrected. - Minor cosmetic changes to the `name` part of the URL, such as for referencing issues to be consistent. - Some small changes to text body, usually due to duplicate URL reference that was unnecessary (open relay, youtous) - Switched other links to use the `[name][reference]` format when there was a large group of URLs such as wikipedia or kubernetes. Github repos that reference projects related to `docker-mailserver` also got placed here so they're noticed better by maintainers. This also helped quite a bit with `mermaid` external links that are very long. - There was a Github Wiki supported syntax in use `[[name | link]]` for `fetchmail` page that isn't compatible by default with MkDocs (needs a plugin), converted to `[name][reference]` instead since it's a relative link. --- docs: Update commit link for LDAP override script Logic moved to another file, keeping the permalink commit reference so it's unaffected by any changes in the file referenced in future. --- docs: Heading corrections Consistency pass. Helps with the Table of Contents (top-right UI) aka Document Outline. docs: codefence cleanup --- docs: misc cleanup --- docs: Add Admonitions Switches `<details>` usage for collapsible admonitions (`???`) while other text content is switched to the visually more distinct admoniton (`!!!` or `???+`) style. This does affect editor syntax highlighting a bit and markdown linting as it's custom non-standard markdown syntax.
2021-03-01 11:41:19 +01:00
**Downsides**
Add in-Kubernetes usage docs
2017-06-27 21:23:54 +02:00
- __Real client IP is not preserved__, so SPF check of incoming mail will fail.
### Bind to concrete Node and use host network
docs(refactor): Large refactor + additions + fixes Consistency pass, formatting cleanup and fixes, introduce admonitions, add front-matter. --- docs: Add front-matter --- docs: Fix and format links - Some links were invalid (eg files moved or renamed) - Some were valid but had invalid section headers (content removed or migrated) - Some use `http://` instead of `https://` when the website supports a secure connection. - Some already used the `[name][reference]` convention but often with a number that wasn't as useful for maintenance. - All referenced docs needed URLs replaced. Opted for the `[name][reference]` approach to group them all clearly at the bottom of the doc, especially with the relative URLs and in some cases many duplicate entries. - All `tomav` references from the original repo prior to switch to an organization have been corrected. - Minor cosmetic changes to the `name` part of the URL, such as for referencing issues to be consistent. - Some small changes to text body, usually due to duplicate URL reference that was unnecessary (open relay, youtous) - Switched other links to use the `[name][reference]` format when there was a large group of URLs such as wikipedia or kubernetes. Github repos that reference projects related to `docker-mailserver` also got placed here so they're noticed better by maintainers. This also helped quite a bit with `mermaid` external links that are very long. - There was a Github Wiki supported syntax in use `[[name | link]]` for `fetchmail` page that isn't compatible by default with MkDocs (needs a plugin), converted to `[name][reference]` instead since it's a relative link. --- docs: Update commit link for LDAP override script Logic moved to another file, keeping the permalink commit reference so it's unaffected by any changes in the file referenced in future. --- docs: Heading corrections Consistency pass. Helps with the Table of Contents (top-right UI) aka Document Outline. docs: codefence cleanup --- docs: misc cleanup --- docs: Add Admonitions Switches `<details>` usage for collapsible admonitions (`???`) while other text content is switched to the visually more distinct admoniton (`!!!` or `???+`) style. This does affect editor syntax highlighting a bit and markdown linting as it's custom non-standard markdown syntax.
2021-03-01 11:41:19 +01:00
The simplest way to preserve real client IP is to use `hostPort` and `hostNetwork: true` in the mailserver [Pod][k8s-workload-pod]. This comes in price of availability: you can talk to mailserver from outside world only via IPs of [Node][k8s-nodes] where mailserver is deployed.
Add in-Kubernetes usage docs
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docs(refactor): Convert more content to use admonitions + improvements
2021-03-02 17:39:06 +01:00
!!! example
```yaml
kind: Deployment
apiVersion: extensions/v1beta1
metadata:
name: mailserver
# ...
spec:
hostNetwork: true
# ...
containers:
# ...
ports:
- name: smtp
containerPort: 25
hostPort: 25
- name: smtp-auth
containerPort: 587
hostPort: 587
- name: imap-secure
containerPort: 993
hostPort: 993
# ...
```
Add in-Kubernetes usage docs
2017-06-27 21:23:54 +02:00
docs(refactor): Large refactor + additions + fixes Consistency pass, formatting cleanup and fixes, introduce admonitions, add front-matter. --- docs: Add front-matter --- docs: Fix and format links - Some links were invalid (eg files moved or renamed) - Some were valid but had invalid section headers (content removed or migrated) - Some use `http://` instead of `https://` when the website supports a secure connection. - Some already used the `[name][reference]` convention but often with a number that wasn't as useful for maintenance. - All referenced docs needed URLs replaced. Opted for the `[name][reference]` approach to group them all clearly at the bottom of the doc, especially with the relative URLs and in some cases many duplicate entries. - All `tomav` references from the original repo prior to switch to an organization have been corrected. - Minor cosmetic changes to the `name` part of the URL, such as for referencing issues to be consistent. - Some small changes to text body, usually due to duplicate URL reference that was unnecessary (open relay, youtous) - Switched other links to use the `[name][reference]` format when there was a large group of URLs such as wikipedia or kubernetes. Github repos that reference projects related to `docker-mailserver` also got placed here so they're noticed better by maintainers. This also helped quite a bit with `mermaid` external links that are very long. - There was a Github Wiki supported syntax in use `[[name | link]]` for `fetchmail` page that isn't compatible by default with MkDocs (needs a plugin), converted to `[name][reference]` instead since it's a relative link. --- docs: Update commit link for LDAP override script Logic moved to another file, keeping the permalink commit reference so it's unaffected by any changes in the file referenced in future. --- docs: Heading corrections Consistency pass. Helps with the Table of Contents (top-right UI) aka Document Outline. docs: codefence cleanup --- docs: misc cleanup --- docs: Add Admonitions Switches `<details>` usage for collapsible admonitions (`???`) while other text content is switched to the visually more distinct admoniton (`!!!` or `???+`) style. This does affect editor syntax highlighting a bit and markdown linting as it's custom non-standard markdown syntax.
2021-03-01 11:41:19 +01:00
**Downsides**
Add in-Kubernetes usage docs
2017-06-27 21:23:54 +02:00
- Not possible to access mailserver via other cluster Nodes, only via the one mailserver deployed at.
Add a note on the Biggest flaw of using `hostNetwork`
2020-02-02 20:48:22 +01:00
- Every Port within the Container is exposed on the Host side, regardless of what the `ports` section in the Configuration defines.
Add in-Kubernetes usage docs
2017-06-27 21:23:54 +02:00
docs(refactor): Large refactor + additions + fixes Consistency pass, formatting cleanup and fixes, introduce admonitions, add front-matter. --- docs: Add front-matter --- docs: Fix and format links - Some links were invalid (eg files moved or renamed) - Some were valid but had invalid section headers (content removed or migrated) - Some use `http://` instead of `https://` when the website supports a secure connection. - Some already used the `[name][reference]` convention but often with a number that wasn't as useful for maintenance. - All referenced docs needed URLs replaced. Opted for the `[name][reference]` approach to group them all clearly at the bottom of the doc, especially with the relative URLs and in some cases many duplicate entries. - All `tomav` references from the original repo prior to switch to an organization have been corrected. - Minor cosmetic changes to the `name` part of the URL, such as for referencing issues to be consistent. - Some small changes to text body, usually due to duplicate URL reference that was unnecessary (open relay, youtous) - Switched other links to use the `[name][reference]` format when there was a large group of URLs such as wikipedia or kubernetes. Github repos that reference projects related to `docker-mailserver` also got placed here so they're noticed better by maintainers. This also helped quite a bit with `mermaid` external links that are very long. - There was a Github Wiki supported syntax in use `[[name | link]]` for `fetchmail` page that isn't compatible by default with MkDocs (needs a plugin), converted to `[name][reference]` instead since it's a relative link. --- docs: Update commit link for LDAP override script Logic moved to another file, keeping the permalink commit reference so it's unaffected by any changes in the file referenced in future. --- docs: Heading corrections Consistency pass. Helps with the Table of Contents (top-right UI) aka Document Outline. docs: codefence cleanup --- docs: misc cleanup --- docs: Add Admonitions Switches `<details>` usage for collapsible admonitions (`???`) while other text content is switched to the visually more distinct admoniton (`!!!` or `???+`) style. This does affect editor syntax highlighting a bit and markdown linting as it's custom non-standard markdown syntax.
2021-03-01 11:41:19 +01:00
### Proxy Port to Service via PROXY Protocol
Add in-Kubernetes usage docs
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Updated Using in Kubernetes (markdown)
2020-03-23 11:38:24 +01:00
This way is ideologically the same as [using Proxy Pod](#proxy-port-to-service), but instead of a separate proxy pod, you configure your ingress to proxy TCP traffic to the mailserver pod using the PROXY protocol, which preserves the real client IP.
Add in-Kubernetes usage docs
2017-06-27 21:23:54 +02:00
docs(refactor): Large refactor + additions + fixes Consistency pass, formatting cleanup and fixes, introduce admonitions, add front-matter. --- docs: Add front-matter --- docs: Fix and format links - Some links were invalid (eg files moved or renamed) - Some were valid but had invalid section headers (content removed or migrated) - Some use `http://` instead of `https://` when the website supports a secure connection. - Some already used the `[name][reference]` convention but often with a number that wasn't as useful for maintenance. - All referenced docs needed URLs replaced. Opted for the `[name][reference]` approach to group them all clearly at the bottom of the doc, especially with the relative URLs and in some cases many duplicate entries. - All `tomav` references from the original repo prior to switch to an organization have been corrected. - Minor cosmetic changes to the `name` part of the URL, such as for referencing issues to be consistent. - Some small changes to text body, usually due to duplicate URL reference that was unnecessary (open relay, youtous) - Switched other links to use the `[name][reference]` format when there was a large group of URLs such as wikipedia or kubernetes. Github repos that reference projects related to `docker-mailserver` also got placed here so they're noticed better by maintainers. This also helped quite a bit with `mermaid` external links that are very long. - There was a Github Wiki supported syntax in use `[[name | link]]` for `fetchmail` page that isn't compatible by default with MkDocs (needs a plugin), converted to `[name][reference]` instead since it's a relative link. --- docs: Update commit link for LDAP override script Logic moved to another file, keeping the permalink commit reference so it's unaffected by any changes in the file referenced in future. --- docs: Heading corrections Consistency pass. Helps with the Table of Contents (top-right UI) aka Document Outline. docs: codefence cleanup --- docs: misc cleanup --- docs: Add Admonitions Switches `<details>` usage for collapsible admonitions (`???`) while other text content is switched to the visually more distinct admoniton (`!!!` or `???+`) style. This does affect editor syntax highlighting a bit and markdown linting as it's custom non-standard markdown syntax.
2021-03-01 11:41:19 +01:00
#### Configure your Ingress
With an [NGINX ingress controller][k8s-nginx], set `externalTrafficPolicy: Local` for its service, and add the following to the TCP services config map (as described [here][k8s-nginx-expose]):
Updated Using in Kubernetes (markdown)
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```yaml
docs(refactor): Large refactor + additions + fixes Consistency pass, formatting cleanup and fixes, introduce admonitions, add front-matter. --- docs: Add front-matter --- docs: Fix and format links - Some links were invalid (eg files moved or renamed) - Some were valid but had invalid section headers (content removed or migrated) - Some use `http://` instead of `https://` when the website supports a secure connection. - Some already used the `[name][reference]` convention but often with a number that wasn't as useful for maintenance. - All referenced docs needed URLs replaced. Opted for the `[name][reference]` approach to group them all clearly at the bottom of the doc, especially with the relative URLs and in some cases many duplicate entries. - All `tomav` references from the original repo prior to switch to an organization have been corrected. - Minor cosmetic changes to the `name` part of the URL, such as for referencing issues to be consistent. - Some small changes to text body, usually due to duplicate URL reference that was unnecessary (open relay, youtous) - Switched other links to use the `[name][reference]` format when there was a large group of URLs such as wikipedia or kubernetes. Github repos that reference projects related to `docker-mailserver` also got placed here so they're noticed better by maintainers. This also helped quite a bit with `mermaid` external links that are very long. - There was a Github Wiki supported syntax in use `[[name | link]]` for `fetchmail` page that isn't compatible by default with MkDocs (needs a plugin), converted to `[name][reference]` instead since it's a relative link. --- docs: Update commit link for LDAP override script Logic moved to another file, keeping the permalink commit reference so it's unaffected by any changes in the file referenced in future. --- docs: Heading corrections Consistency pass. Helps with the Table of Contents (top-right UI) aka Document Outline. docs: codefence cleanup --- docs: misc cleanup --- docs: Add Admonitions Switches `<details>` usage for collapsible admonitions (`???`) while other text content is switched to the visually more distinct admoniton (`!!!` or `???+`) style. This does affect editor syntax highlighting a bit and markdown linting as it's custom non-standard markdown syntax.
2021-03-01 11:41:19 +01:00
25: "mailserver/mailserver:25::PROXY"
465: "mailserver/mailserver:465::PROXY"
587: "mailserver/mailserver:587::PROXY"
993: "mailserver/mailserver:993::PROXY"
Updated Using in Kubernetes (markdown)
2020-03-23 11:38:24 +01:00
```
docs(refactor): Large refactor + additions + fixes Consistency pass, formatting cleanup and fixes, introduce admonitions, add front-matter. --- docs: Add front-matter --- docs: Fix and format links - Some links were invalid (eg files moved or renamed) - Some were valid but had invalid section headers (content removed or migrated) - Some use `http://` instead of `https://` when the website supports a secure connection. - Some already used the `[name][reference]` convention but often with a number that wasn't as useful for maintenance. - All referenced docs needed URLs replaced. Opted for the `[name][reference]` approach to group them all clearly at the bottom of the doc, especially with the relative URLs and in some cases many duplicate entries. - All `tomav` references from the original repo prior to switch to an organization have been corrected. - Minor cosmetic changes to the `name` part of the URL, such as for referencing issues to be consistent. - Some small changes to text body, usually due to duplicate URL reference that was unnecessary (open relay, youtous) - Switched other links to use the `[name][reference]` format when there was a large group of URLs such as wikipedia or kubernetes. Github repos that reference projects related to `docker-mailserver` also got placed here so they're noticed better by maintainers. This also helped quite a bit with `mermaid` external links that are very long. - There was a Github Wiki supported syntax in use `[[name | link]]` for `fetchmail` page that isn't compatible by default with MkDocs (needs a plugin), converted to `[name][reference]` instead since it's a relative link. --- docs: Update commit link for LDAP override script Logic moved to another file, keeping the permalink commit reference so it's unaffected by any changes in the file referenced in future. --- docs: Heading corrections Consistency pass. Helps with the Table of Contents (top-right UI) aka Document Outline. docs: codefence cleanup --- docs: misc cleanup --- docs: Add Admonitions Switches `<details>` usage for collapsible admonitions (`???`) while other text content is switched to the visually more distinct admoniton (`!!!` or `???+`) style. This does affect editor syntax highlighting a bit and markdown linting as it's custom non-standard markdown syntax.
2021-03-01 11:41:19 +01:00
With [HAProxy][dockerhub-haproxy], the configuration should look similar to the above. If you know what it actually looks like, add an example here. :smiley:
#### Configure the Mailserver
Then, configure both [Postfix][docs-postfix] and [Dovecot][docs-dovecot] to expect the PROXY protocol:
Updated Using in Kubernetes (markdown)
2020-03-23 11:38:24 +01:00
docs(refactor): Convert more content to use admonitions + improvements
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!!! example
Add in-Kubernetes usage docs
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docs(refactor): Convert more content to use admonitions + improvements
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```yaml
kind: ConfigMap
apiVersion: v1
metadata:
name: mailserver.config
labels:
app: mailserver
data:
postfix-main.cf: |
postscreen_upstream_proxy_protocol = haproxy
postfix-master.cf: |
docs(sync): Add Github Wiki contributions During the long-lived PR, multiple contributions to the existing Github Wiki were made, this commit applies those here and mentions the files and authors attributed to the changes: JaapD: dkim.md + forward-only-mailserver-with-ldap-authentication.md Added corrections to `setup.sh config dkim` command. Added compatibility warning about 4096-bit key sizes or greater. Added ldap tip. --- fred727-temp: optional-config.md Added a mention for `user-patches.sh`. --- Semir Patel: setup.sh.md + debugging.md Minor corrections. Additionally corrected `tvial` references that had already been updated in this PR series. --- Stefan Neben: kubernetes.md > Port 25 proxy protocol configuration in master.cf was missing docs(sync): Add Github Wiki contributions > IMAP with STARTTLS is also active, so we need that option here as well docs(sync): Add Github Wiki contribution
2021-03-24 00:44:28 +01:00
smtp/inet/postscreen_upstream_proxy_protocol=haproxy
docs(refactor): Convert more content to use admonitions + improvements
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submission/inet/smtpd_upstream_proxy_protocol=haproxy
smtps/inet/smtpd_upstream_proxy_protocol=haproxy
dovecot.cf: |
# Assuming your ingress controller is bound to 10.0.0.0/8
haproxy_trusted_networks = 10.0.0.0/8, 127.0.0.0/8
service imap-login {
docs(sync): Add Github Wiki contributions During the long-lived PR, multiple contributions to the existing Github Wiki were made, this commit applies those here and mentions the files and authors attributed to the changes: JaapD: dkim.md + forward-only-mailserver-with-ldap-authentication.md Added corrections to `setup.sh config dkim` command. Added compatibility warning about 4096-bit key sizes or greater. Added ldap tip. --- fred727-temp: optional-config.md Added a mention for `user-patches.sh`. --- Semir Patel: setup.sh.md + debugging.md Minor corrections. Additionally corrected `tvial` references that had already been updated in this PR series. --- Stefan Neben: kubernetes.md > Port 25 proxy protocol configuration in master.cf was missing docs(sync): Add Github Wiki contributions > IMAP with STARTTLS is also active, so we need that option here as well docs(sync): Add Github Wiki contribution
2021-03-24 00:44:28 +01:00
inet_listener imap {
haproxy = yes
}
docs(refactor): Convert more content to use admonitions + improvements
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inet_listener imaps {
haproxy = yes
}
}
# ...
---
kind: Deployment
apiVersion: extensions/v1beta1
metadata:
name: mailserver
Rework section on PROXY protocol (including nameless previous change)
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spec:
docs(refactor): Convert more content to use admonitions + improvements
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template:
spec:
containers:
- name: docker-mailserver
volumeMounts:
- name: config
subPath: postfix-main.cf
mountPath: /tmp/docker-mailserver/postfix-main.cf
readOnly: true
- name: config
subPath: postfix-master.cf
mountPath: /tmp/docker-mailserver/postfix-master.cf
readOnly: true
- name: config
subPath: dovecot.cf
mountPath: /tmp/docker-mailserver/dovecot.cf
readOnly: true
```
Add in-Kubernetes usage docs
2017-06-27 21:23:54 +02:00
docs(refactor): Large refactor + additions + fixes Consistency pass, formatting cleanup and fixes, introduce admonitions, add front-matter. --- docs: Add front-matter --- docs: Fix and format links - Some links were invalid (eg files moved or renamed) - Some were valid but had invalid section headers (content removed or migrated) - Some use `http://` instead of `https://` when the website supports a secure connection. - Some already used the `[name][reference]` convention but often with a number that wasn't as useful for maintenance. - All referenced docs needed URLs replaced. Opted for the `[name][reference]` approach to group them all clearly at the bottom of the doc, especially with the relative URLs and in some cases many duplicate entries. - All `tomav` references from the original repo prior to switch to an organization have been corrected. - Minor cosmetic changes to the `name` part of the URL, such as for referencing issues to be consistent. - Some small changes to text body, usually due to duplicate URL reference that was unnecessary (open relay, youtous) - Switched other links to use the `[name][reference]` format when there was a large group of URLs such as wikipedia or kubernetes. Github repos that reference projects related to `docker-mailserver` also got placed here so they're noticed better by maintainers. This also helped quite a bit with `mermaid` external links that are very long. - There was a Github Wiki supported syntax in use `[[name | link]]` for `fetchmail` page that isn't compatible by default with MkDocs (needs a plugin), converted to `[name][reference]` instead since it's a relative link. --- docs: Update commit link for LDAP override script Logic moved to another file, keeping the permalink commit reference so it's unaffected by any changes in the file referenced in future. --- docs: Heading corrections Consistency pass. Helps with the Table of Contents (top-right UI) aka Document Outline. docs: codefence cleanup --- docs: misc cleanup --- docs: Add Admonitions Switches `<details>` usage for collapsible admonitions (`???`) while other text content is switched to the visually more distinct admoniton (`!!!` or `???+`) style. This does affect editor syntax highlighting a bit and markdown linting as it's custom non-standard markdown syntax.
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**Downsides**
Add in-Kubernetes usage docs
2017-06-27 21:23:54 +02:00
- Not possible to access mailserver via inner cluster Kubernetes DNS, as PROXY protocol is required for incoming connections.
docs(refactor): Large refactor + additions + fixes Consistency pass, formatting cleanup and fixes, introduce admonitions, add front-matter. --- docs: Add front-matter --- docs: Fix and format links - Some links were invalid (eg files moved or renamed) - Some were valid but had invalid section headers (content removed or migrated) - Some use `http://` instead of `https://` when the website supports a secure connection. - Some already used the `[name][reference]` convention but often with a number that wasn't as useful for maintenance. - All referenced docs needed URLs replaced. Opted for the `[name][reference]` approach to group them all clearly at the bottom of the doc, especially with the relative URLs and in some cases many duplicate entries. - All `tomav` references from the original repo prior to switch to an organization have been corrected. - Minor cosmetic changes to the `name` part of the URL, such as for referencing issues to be consistent. - Some small changes to text body, usually due to duplicate URL reference that was unnecessary (open relay, youtous) - Switched other links to use the `[name][reference]` format when there was a large group of URLs such as wikipedia or kubernetes. Github repos that reference projects related to `docker-mailserver` also got placed here so they're noticed better by maintainers. This also helped quite a bit with `mermaid` external links that are very long. - There was a Github Wiki supported syntax in use `[[name | link]]` for `fetchmail` page that isn't compatible by default with MkDocs (needs a plugin), converted to `[name][reference]` instead since it's a relative link. --- docs: Update commit link for LDAP override script Logic moved to another file, keeping the permalink commit reference so it's unaffected by any changes in the file referenced in future. --- docs: Heading corrections Consistency pass. Helps with the Table of Contents (top-right UI) aka Document Outline. docs: codefence cleanup --- docs: misc cleanup --- docs: Add Admonitions Switches `<details>` usage for collapsible admonitions (`???`) while other text content is switched to the visually more distinct admoniton (`!!!` or `???+`) style. This does affect editor syntax highlighting a bit and markdown linting as it's custom non-standard markdown syntax.
2021-03-01 11:41:19 +01:00
## Let's Encrypt Certificates
Add in-Kubernetes usage docs
2017-06-27 21:23:54 +02:00
docs(refactor): Large refactor + additions + fixes Consistency pass, formatting cleanup and fixes, introduce admonitions, add front-matter. --- docs: Add front-matter --- docs: Fix and format links - Some links were invalid (eg files moved or renamed) - Some were valid but had invalid section headers (content removed or migrated) - Some use `http://` instead of `https://` when the website supports a secure connection. - Some already used the `[name][reference]` convention but often with a number that wasn't as useful for maintenance. - All referenced docs needed URLs replaced. Opted for the `[name][reference]` approach to group them all clearly at the bottom of the doc, especially with the relative URLs and in some cases many duplicate entries. - All `tomav` references from the original repo prior to switch to an organization have been corrected. - Minor cosmetic changes to the `name` part of the URL, such as for referencing issues to be consistent. - Some small changes to text body, usually due to duplicate URL reference that was unnecessary (open relay, youtous) - Switched other links to use the `[name][reference]` format when there was a large group of URLs such as wikipedia or kubernetes. Github repos that reference projects related to `docker-mailserver` also got placed here so they're noticed better by maintainers. This also helped quite a bit with `mermaid` external links that are very long. - There was a Github Wiki supported syntax in use `[[name | link]]` for `fetchmail` page that isn't compatible by default with MkDocs (needs a plugin), converted to `[name][reference]` instead since it's a relative link. --- docs: Update commit link for LDAP override script Logic moved to another file, keeping the permalink commit reference so it's unaffected by any changes in the file referenced in future. --- docs: Heading corrections Consistency pass. Helps with the Table of Contents (top-right UI) aka Document Outline. docs: codefence cleanup --- docs: misc cleanup --- docs: Add Admonitions Switches `<details>` usage for collapsible admonitions (`???`) while other text content is switched to the visually more distinct admoniton (`!!!` or `???+`) style. This does affect editor syntax highlighting a bit and markdown linting as it's custom non-standard markdown syntax.
2021-03-01 11:41:19 +01:00
[Kube-Lego][kube-lego] may be used for a role of Let's Encrypt client. It works with Kubernetes [Ingress Resources][k8s-network-ingress] and automatically issues/manages certificates/keys for exposed services via Ingresses.
Add in-Kubernetes usage docs
2017-06-27 21:23:54 +02:00
docs(refactor): Convert more content to use admonitions + improvements
2021-03-02 17:39:06 +01:00
!!! example
```yaml
kind: Ingress
apiVersion: extensions/v1beta1
metadata:
name: mailserver
labels:
app: mailserver
annotations:
kubernetes.io/tls-acme: 'true'
spec:
rules:
- host: example.com
http:
paths:
- path: /
backend:
serviceName: default-backend
servicePort: 80
tls:
- secretName: mailserver.tls
hosts:
- example.com
```
Add in-Kubernetes usage docs
2017-06-27 21:23:54 +02:00
docs(refactor): Large refactor + additions + fixes Consistency pass, formatting cleanup and fixes, introduce admonitions, add front-matter. --- docs: Add front-matter --- docs: Fix and format links - Some links were invalid (eg files moved or renamed) - Some were valid but had invalid section headers (content removed or migrated) - Some use `http://` instead of `https://` when the website supports a secure connection. - Some already used the `[name][reference]` convention but often with a number that wasn't as useful for maintenance. - All referenced docs needed URLs replaced. Opted for the `[name][reference]` approach to group them all clearly at the bottom of the doc, especially with the relative URLs and in some cases many duplicate entries. - All `tomav` references from the original repo prior to switch to an organization have been corrected. - Minor cosmetic changes to the `name` part of the URL, such as for referencing issues to be consistent. - Some small changes to text body, usually due to duplicate URL reference that was unnecessary (open relay, youtous) - Switched other links to use the `[name][reference]` format when there was a large group of URLs such as wikipedia or kubernetes. Github repos that reference projects related to `docker-mailserver` also got placed here so they're noticed better by maintainers. This also helped quite a bit with `mermaid` external links that are very long. - There was a Github Wiki supported syntax in use `[[name | link]]` for `fetchmail` page that isn't compatible by default with MkDocs (needs a plugin), converted to `[name][reference]` instead since it's a relative link. --- docs: Update commit link for LDAP override script Logic moved to another file, keeping the permalink commit reference so it's unaffected by any changes in the file referenced in future. --- docs: Heading corrections Consistency pass. Helps with the Table of Contents (top-right UI) aka Document Outline. docs: codefence cleanup --- docs: misc cleanup --- docs: Add Admonitions Switches `<details>` usage for collapsible admonitions (`???`) while other text content is switched to the visually more distinct admoniton (`!!!` or `???+`) style. This does affect editor syntax highlighting a bit and markdown linting as it's custom non-standard markdown syntax.
2021-03-01 11:41:19 +01:00
Now, you can use Let's Encrypt cert and key from `mailserver.tls` [Secret][k8s-config-secret] in your [Pod][k8s-workload-pod] spec:
Add in-Kubernetes usage docs
2017-06-27 21:23:54 +02:00
docs(refactor): Convert more content to use admonitions + improvements
2021-03-02 17:39:06 +01:00
!!! example
```yaml
# ...
env:
- name: SSL_TYPE
value: 'manual'
- name: SSL_CERT_PATH
value: '/etc/ssl/mailserver/tls.crt'
- name: SSL_KEY_PATH
value: '/etc/ssl/mailserver/tls.key'
# ...
volumeMounts:
- name: tls
mountPath: /etc/ssl/mailserver
readOnly: true
# ...
volumes:
- name: tls
secret:
secretName: mailserver.tls
```
Add in-Kubernetes usage docs
2017-06-27 21:23:54 +02:00
docs(refactor): Large refactor + additions + fixes Consistency pass, formatting cleanup and fixes, introduce admonitions, add front-matter. --- docs: Add front-matter --- docs: Fix and format links - Some links were invalid (eg files moved or renamed) - Some were valid but had invalid section headers (content removed or migrated) - Some use `http://` instead of `https://` when the website supports a secure connection. - Some already used the `[name][reference]` convention but often with a number that wasn't as useful for maintenance. - All referenced docs needed URLs replaced. Opted for the `[name][reference]` approach to group them all clearly at the bottom of the doc, especially with the relative URLs and in some cases many duplicate entries. - All `tomav` references from the original repo prior to switch to an organization have been corrected. - Minor cosmetic changes to the `name` part of the URL, such as for referencing issues to be consistent. - Some small changes to text body, usually due to duplicate URL reference that was unnecessary (open relay, youtous) - Switched other links to use the `[name][reference]` format when there was a large group of URLs such as wikipedia or kubernetes. Github repos that reference projects related to `docker-mailserver` also got placed here so they're noticed better by maintainers. This also helped quite a bit with `mermaid` external links that are very long. - There was a Github Wiki supported syntax in use `[[name | link]]` for `fetchmail` page that isn't compatible by default with MkDocs (needs a plugin), converted to `[name][reference]` instead since it's a relative link. --- docs: Update commit link for LDAP override script Logic moved to another file, keeping the permalink commit reference so it's unaffected by any changes in the file referenced in future. --- docs: Heading corrections Consistency pass. Helps with the Table of Contents (top-right UI) aka Document Outline. docs: codefence cleanup --- docs: misc cleanup --- docs: Add Admonitions Switches `<details>` usage for collapsible admonitions (`???`) while other text content is switched to the visually more distinct admoniton (`!!!` or `???+`) style. This does affect editor syntax highlighting a bit and markdown linting as it's custom non-standard markdown syntax.
2021-03-01 11:41:19 +01:00
[docs-dovecot]: ./override-defaults/dovecot.md
[docs-postfix]: ./override-defaults/postfix.md
[github-file-compose]: https://github.com/docker-mailserver/docker-mailserver/blob/master/docker-compose.yml
[dockerhub-haproxy]: https://hub.docker.com/_/haproxy
[kube-lego]: https://github.com/jetstack/kube-lego
[k8s-assign-pod-node]: https://kubernetes.io/docs/concepts/configuration/assign-pod-node
[k8s-config-pod]: https://kubernetes.io/docs/tasks/configure-pod-container/configmap
[k8s-config-secret]: https://kubernetes.io/docs/concepts/configuration/secret
[k8s-nginx]: https://kubernetes.github.io/ingress-nginx
[k8s-nginx-expose]: https://kubernetes.github.io/ingress-nginx/user-guide/exposing-tcp-udp-services
[k8s-network-ingress]: https://kubernetes.io/docs/concepts/services-networking/ingress
[k8s-network-service]: https://kubernetes.io/docs/concepts/services-networking/service
[k8s-network-external-ip]: https://kubernetes.io/docs/concepts/services-networking/service/#external-ips
[k8s-nodes]: https://kubernetes.io/docs/concepts/architecture/nodes
[k8s-proxy-service]: https://github.com/kubernetes/contrib/tree/master/for-demos/proxy-to-service
[k8s-service-source-ip]: https://kubernetes.io/docs/tutorials/services/source-ip
[k8s-workload-pod]: https://kubernetes.io/docs/concepts/workloads/pods/pod
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