commit d2487b475bc3e00cc6301cf512b7525afecebc5d
Author: Bojan Čekrlić <bojan@cekrlic.com>
Date:   Fri Mar 18 00:06:12 2016 +0100

    Postfix, initial release

diff --git a/Dockerfile b/Dockerfile
new file mode 100644
index 0000000..f6bf100
--- /dev/null
+++ b/Dockerfile
@@ -0,0 +1,23 @@
+FROM alpine:edge
+MAINTAINER Bojan Cekrlic
+
+# You can set this variables when running the image to override the host name or
+# foward the messages to another server
+#ENV	HOSTNAME
+#ENV	RELAYHOST
+
+RUN	true && \
+	apk add --no-cache --update postfix ca-certificates supervisor rsyslog bash && \
+	(rm "/tmp/"* 2>/dev/null || true) && (rm -rf /var/cache/apk/* 2>/dev/null || true)
+
+COPY	supervisord.conf /etc/supervisord.conf
+COPY	rsyslog.conf /etc/rsyslog.conf
+COPY	postfix.sh /postfix.sh
+RUN	chmod +x /postfix.sh
+
+VOLUME	[ "/var/spool/postfix" ]
+
+USER	root
+WORKDIR	/tmp
+ENTRYPOINT ["/usr/bin/supervisord", "-c", "/etc/supervisord.conf"]
+
diff --git a/postfix.sh b/postfix.sh
new file mode 100644
index 0000000..786b6ba
--- /dev/null
+++ b/postfix.sh
@@ -0,0 +1,15 @@
+#!/bin/bash
+
+if [[ ! -z "$HOSTNAME" ]]; then
+	postconf -e myhostname=$HOSTNAME
+else
+	postconf -# myhostname
+fi
+
+if [[ ! -z "$RELAYHOST" ]]; then
+	postconf -e relayhost=$RELAYHOST
+else
+	postconf -# relayhost
+fi
+
+/usr/sbin/postfix -c /etc/postfix start
diff --git a/rsyslog.conf b/rsyslog.conf
new file mode 100644
index 0000000..44ed1ad
--- /dev/null
+++ b/rsyslog.conf
@@ -0,0 +1,14 @@
+$ModLoad immark.so # provides --MARK-- message capability
+$ModLoad imuxsock.so # provides support for local system logging (e.g. via logger command)
+
+# default permissions for all log files.
+$FileOwner root
+$FileGroup adm
+$FileCreateMode 0640
+$DirCreateMode 0755
+$Umask 0022
+
+#*.info							/dev/stdout
+#mail.*							/dev/stdout
+mail.info	/dev/stdout
+
diff --git a/supervisord.conf b/supervisord.conf
new file mode 100644
index 0000000..e9786c2
--- /dev/null
+++ b/supervisord.conf
@@ -0,0 +1,22 @@
+[supervisord]
+nodaemon        = true
+logfile         = /dev/null
+logfile_maxbytes= 0
+
+[program:rsyslog]
+command         = rsyslogd -n
+autostart       = true
+autorestart     = true
+startsecs       = 2
+stopwaitsecs    = 2
+stdout_logfile  = /dev/stdout
+stderr_logfile  = /dev/stderr
+stdout_logfile_maxbytes = 0
+stderr_logfile_maxbytes = 0
+
+[program:postfix]
+process_name	= master
+directory	= /etc/postfix
+command		= /postfix.sh
+startsecs	= 0
+autorestart	= false