102 lines
3.1 KiB
Bash
Executable File
102 lines
3.1 KiB
Bash
Executable File
#!/bin/sh
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#
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# entrypoint script for postfix smarthost mail relay
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#
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convertCase () {
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printf "%s" "$1" | tr "[:lower:]" "[:upper:]"
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}
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if [ -f "/etc/postfix/main.cf.override" ]; then
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# use provided configuration file
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printf "\nAppending provided MAIN configuration... "
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cat /etc/postfix/main.cf.override >> /etc/postfix/main.cf
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\rm -f /tmp/main.cf.insert
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else
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# process auto-setup
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printf "\nVerifying environment variables... "
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# check for missing environment variable values
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if [ -z "$SMARTHOST" ]; then
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printf "\nYou must specify the hostname or IP address of a smarthost where mail should be relayed.\n\n"
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exit 1
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fi
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if [ -z "$SMARTHOST_USERNAME" ]; then
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printf "\nYou must provide a username for smarthost authentication.\n\n"
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exit 1
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fi
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if [ -z "$SMARTHOST_PASSWORD" ]; then
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printf "\nYou must provide a password for smarthost authentication.\n\n"
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exit 1
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fi
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# set failsafes
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[ -z "$SMARTHOST_PORT" ] && SMARTHOST_PORT=587
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[ -z "$LOCAL_HOSTNAME" ] && LOCAL_HOSTNAME="$(uname -n)"
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[ -z "$LOCAL_DOMAINNAME" ] && LOCAL_DOMAINNAME="${LOCAL_HOSTNAME#*.}"
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printf "done\n"
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printf "updating configuration files... "
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# update main.cf
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sed -i "s/{LOCAL_HOSTNAME}/${LOCAL_HOSTNAME}/" /tmp/main.cf.insert
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sed -i "s/{LOCAL_DOMAINNAME}/${LOCAL_DOMAINNAME}/" /tmp/main.cf.insert
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sed -i "s/{SMARTHOST}/${SMARTHOST}/" /tmp/main.cf.insert
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sed -i "s/{SMARTHOST_PORT}/${SMARTHOST_PORT}/" /tmp/main.cf.insert
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sed -i "s/{SMARTHOST_USERNAME}/${SMARTHOST_USERNAME}/" /tmp/main.cf.insert
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sed -i "s/{SMARTHOST_PASSWORD}/${SMARTHOST_PASSWORD}/" /tmp/main.cf.insert
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LOCAL_ENCRYPTION="$(convertCase "$LOCAL_ENCRYPTION")"
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case "$LOCAL_ENCRYPTION" in
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OPT*)
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sed -i 's/{LOCAL_ENCRYPTION}/may/' /tmp/main.cf.insert
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sed -i 's/#smtpd_/smtpd_/g' /tmp/main.cf.insert
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;;
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TRUE)
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sed -i 's/{LOCAL_ENCRYPTION}/encrypt/' /tmp/main.cf.insert
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sed -i 's/#smtpd_/smtpd_/g' /tmp/main.cf.insert
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;;
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*)
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sed -i 's/{LOCAL_ENCRYPTION}//' /tmp/main.cf.insert
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;;
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esac
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SMARTHOST_ENCRYPTION="$(convertCase "$SMARTHOST_ENCRYPTION")"
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case "$SMARTHOST_ENCRYPTION" in
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OPT*)
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sed -i 's/{SMARTHOST_ENCRYPTION}/may/' /tmp/main.cf.insert
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;;
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TRUE)
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sed -i 's/{SMARTHOST_ENCRYPTION}/secure/' /tmp/main.cf.insert
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;;
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*)
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sed -i 's/{SMARTHOST_ENCRYPTION}/none/' /tmp/main.cf.insert
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;;
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esac
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# append configuration and remove temp file
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cat /tmp/main.cf.insert >> /etc/postfix/main.cf
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\rm -f /tmp/main.cf.insert
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fi
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printf "done\n"
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if [ -f "/etc/postfix/master.cf.override" ]; then
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# use provided configuration file
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printf "\nUsing provided MASTER configuration... "
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\cp --force /etc/postfix/master.cf.override /etc/postfix/master.cf
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else
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# update master.cf
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sed -i 's/#tlsproxy/tlsproxy/' /etc/postfix/master.cf
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fi
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printf "done\n"
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printf "container setup complete!\n"
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# run CMD passed to this container
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printf "\nExecuting: %s\n" "$*"
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exec "$@"
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exit 0
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#EOF
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