docker-mailserver/setup.sh

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#! /bin/sh
##
# Wrapper for various setup scripts included in the docker-mailserver
#
INFO=$(docker ps \
--no-trunc \
--format="{{.Image}}\t{{.Names}}\t{{.Command}}" | \
grep "/bin/sh -c 'supervisord -c /etc/supervisor/supervisord.conf'")
IMAGE_NAME=$(echo $INFO | awk '{print $1}')
CONTAINER_NAME=$(echo $INFO | awk '{print $2}')
if [ -z "$IMAGE_NAME" ]; then
IMAGE_NAME=tvial/docker-mailserver:latest
fi
_inspect() {
if _docker_image_exists "$IMAGE_NAME"; then
echo "Image: $IMAGE_NAME"
else
echo "Image: '$IMAGE_NAME' cant be found."
fi
if [ -n "$CONTAINER_NAME" ]; then
echo "Container: $CONTAINER_NAME"
else
echo "Container: Not running, please start docker-mailserver."
fi
}
_usage() {
echo "Usage: $0 [-i IMAGE_NAME] [-c CONTAINER_NAME] <subcommand> <subcommand> [args]
OPTIONS:
-i IMAGE_NAME The name of the docker-mailserver image, by default
'tvial/docker-mailserver:latest'.
-c CONTAINER_NAME The name of the running container.
SUBCOMMANDS:
email:
$0 email add <email> <password>
$0 email update <email> <password>
$0 email del <email>
$0 email list
alias:
$0 alias add <email> <recipient>
$0 alias del <email> <recipient>
$0 alias list
config:
$0 config dkim
$0 config ssl
debug:
$0 debug fetchmail
$0 debug fail2ban <unban> <ip-address>
$0 debug show-mail-logs
$0 debug inspect
$0 debug login <commands>
"
exit 1
}
_docker_image_exists() {
if docker history -q "$1" >/dev/null 2>&1; then
return 0
else
return 1
fi
}
_docker_image() {
if ! _docker_image_exists "$IMAGE_NAME"; then
echo "Image '$IMAGE_NAME' not found. Pulling ..."
docker pull "$IMAGE_NAME"
fi
docker run \
--rm \
-v "$(pwd)/config":/tmp/docker-mailserver \
-ti "$IMAGE_NAME" $@
}
_docker_container() {
if [ -n "$CONTAINER_NAME" ]; then
docker exec -ti "$CONTAINER_NAME" $@
else
echo "The docker-mailserver is not running!"
exit 1
fi
}
while getopts ":c:i:" OPT; do
case $OPT in
c)
CONTAINER_NAME="$OPTARG"
;;
i)
IMAGE_NAME="$OPTARG"
;;
\?)
echo "Invalid option: -$OPTARG" >&2
;;
esac
done
shift $((OPTIND-1))
case $1 in
email)
shift
case $1 in
add)
shift
_docker_image addmailuser $@
;;
update)
shift
_docker_image updatemailuser $@
;;
del)
shift
_docker_image delmailuser $@
;;
list)
_docker_image listmailuser
;;
*)
_usage
;;
esac
;;
alias)
shift
case $1 in
add)
shift
_docker_image addalias $@
;;
del)
shift
_docker_image delalias $@
;;
list)
shift
_docker_image listalias $@
;;
*)
_usage
;;
esac
;;
config)
shift
case $1 in
dkim)
_docker_image generate-dkim-config
;;
ssl)
_docker_image generate-ssl-certificate
;;
*)
_usage
;;
esac
;;
debug)
shift
case $1 in
fetchmail)
_docker_image debug-fetchmail
;;
fail2ban)
shift
JAILS=$(_docker_container fail2ban-client status | grep "Jail list" | cut -f2- | sed 's/,//g')
if [ -z "$1" ]; then
IP_COUNT=0
for JAIL in $JAILS; do
BANNED_IP=$(_docker_container iptables -L f2b-$JAIL -n | grep -Eo '[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}' | grep -v '0.0.0.0')
if [ -n "$BANNED_IP" ]; then
BANNED_IP=$(echo $BANNED_IP | sed -e 's/\n/,/g')
echo "Banned in $JAIL: $BANNED_IP"
IP_COUNT=$((IP_COUNT+1))
fi
done
if [ "$IP_COUNT" -eq 0 ]; then
echo "No IPs have been banned"
fi
else
case $1 in
unban)
shift
if [ -n "$1" ]; then
for JAIL in $JAILS; do
RESULT=`_docker_container fail2ban-client set $JAIL unbanip $@`
case "$RESULT" in
*"is not banned"*) ;;
*"NOK"*) ;;
*) echo -n "unbanned IP from $JAIL: "
echo "$RESULT";;
esac
done
else
echo "You need to specify an IP address. Run \"./setup.sh debug fail2ban\" to get a list of banned IP addresses."
fi
;;
*)
_usage
;;
esac
fi
;;
show-mail-logs)
_docker_container cat /var/log/mail/mail.log
;;
inspect)
_inspect
;;
login)
shift
if [ -z "$1" ]; then
_docker_container /bin/bash
else
_docker_container /bin/bash -c "$@"
fi
;;
*)
_usage
;;
esac
;;
*)
_usage
;;
esac