82 lines
2.4 KiB
Bash
82 lines
2.4 KiB
Bash
#!/bin/bash
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# This helper supports the changedetector service. Used by:
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# - check-for-changes.sh
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# - test/test_helper/common.bash:wait_for_changes_to_be_detected_in_container()
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# - test/test_helper.bats
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# - start-mailserver.sh --> setup-stack.sh:_setup (to initialize the CHKSUM_FILE state)
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# Global checksum file used to track when monitored files have changed in content:
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# shellcheck disable=SC2034
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CHKSUM_FILE=/tmp/docker-mailserver-config-chksum
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# Once container startup scripts complete, take a snapshot of
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# the config state via storing a list of files content hashes.
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function _prepare_for_change_detection
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{
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_log 'debug' 'Setting up configuration checksum file'
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_log 'trace' "Creating '${CHKSUM_FILE}'"
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_monitored_files_checksums >"${CHKSUM_FILE}"
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}
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# Returns a list of changed files, each line is a value pair of:
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# <SHA-512 content hash> <changed file path>
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function _monitored_files_checksums
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{
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# If a wildcard path pattern (or an empty ENV) would yield an invalid path
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# or no results, `shopt -s nullglob` prevents it from being added.
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shopt -s nullglob
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declare -a STAGING_FILES CHANGED_FILES
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# Supported user provided configs:
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local DMS_DIR=/tmp/docker-mailserver
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if [[ -d ${DMS_DIR} ]]
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then
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STAGING_FILES+=(
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"${DMS_DIR}/postfix-accounts.cf"
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"${DMS_DIR}/postfix-virtual.cf"
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"${DMS_DIR}/postfix-regexp.cf"
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"${DMS_DIR}/postfix-aliases.cf"
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"${DMS_DIR}/postfix-relaymap.cf"
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"${DMS_DIR}/postfix-sasl-password.cf"
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"${DMS_DIR}/dovecot-quotas.cf"
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"${DMS_DIR}/dovecot-masters.cf"
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)
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fi
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# SSL certs:
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if [[ ${SSL_TYPE:-} == 'manual' ]]
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then
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# When using "manual" as the SSL type,
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# the following variables may contain the certificate files
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STAGING_FILES+=(
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"${SSL_CERT_PATH:-}"
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"${SSL_KEY_PATH:-}"
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"${SSL_ALT_CERT_PATH:-}"
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"${SSL_ALT_KEY_PATH:-}"
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)
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elif [[ ${SSL_TYPE:-} == 'letsencrypt' ]]
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then
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# React to any cert changes within the following LetsEncrypt locations:
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STAGING_FILES+=(
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/etc/letsencrypt/acme.json
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/etc/letsencrypt/live/"${SSL_DOMAIN}"/*.pem
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/etc/letsencrypt/live/"${HOSTNAME}"/*.pem
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/etc/letsencrypt/live/"${DOMAINNAME}"/*.pem
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)
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fi
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# If the file actually exists, add to CHANGED_FILES
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# and generate a content hash entry:
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for FILE in "${STAGING_FILES[@]}"
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do
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[[ -f "${FILE}" ]] && CHANGED_FILES+=("${FILE}")
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done
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if [[ -n ${CHANGED_FILES:-} ]]
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then
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sha512sum -- "${CHANGED_FILES[@]}"
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fi
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}
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