Refactor: use centos6 image that can start the postfix service.

Add a separate folder for eionet specific config.

.gitignore

+.secret

.secret.example

+MTP_USER=user
+MTP_PASS=password
+
+# If you are using the generic eeacms/postfix:latest, also set:
+#MTP_HOST=subdomain.example.eu
+#MTP_RELAY=relay.domain.tld

Dockerfile

-FROM centos:centos7
+FROM layerworx/centos
 
-ENV MTP_HOST=fwd.example.com
-ENV MTP_PORT=25
-ENV MTP_USER=user
-ENV MTP_PASS=password
+RUN yum -y install postfix mailx cyrus-sasl cyrus-sasl-plain python-setuptools python-pip rsyslog
 
-RUN yum -y install postfix mailx cyrus-sasl cyrus-sasl-plain python-setuptools python-pip
-RUN curl https://bootstrap.pypa.io/get-pip.py | python -
-RUN pip install supervisor
-RUN mkdir -p /etc/supervisor.d/conf.d
-RUN echo_supervisord_conf > /etc/supervisord.conf
-RUN echo '[include]' >> /etc/supervisord.conf
-RUN echo 'files = supervisor/conf.d/*.conf' >> /etc/supervisord.conf
-
-RUN postconf -e "relayhost = [$MTP_HOST]:$MTP_PORT"
-RUN postconf -e 'smtp_sasl_auth_enable = yes'
-RUN postconf -e 'smtp_sasl_password_maps = hash:/etc/postfix/relay_passwd'
-RUN postconf -e 'smtp_sasl_security_options = noanonymous'
-RUN postconf -e 'smtp_tls_security_level = may'
-RUN touch /var/log/mail.log
-RUN mkdir -p /var/spool/postfix/public/
-RUN mkfifo /var/spool/postfix/public/pickup
-
-EXPOSE 25
-VOLUME ["/var/log", "/var/spool/postfix"]
+VOLUME ["/var/log"]
 
 ADD postfix.sh /postfix.sh
-ADD supervisord.conf /etc/supervisor/conf.d/supervisord.conf
-CMD ["sh", "-c", "/usr/bin/supervisord""]
+
+CMD ["sh", "-c", "./postfix.sh"]
\ No newline at end of file

README.md

-# eea.docker.postfix
+# Postfix Image for SMTP Auth
 
-Postfix image for Smtp relay authentication.
+Build:
+
+    docker build -t eeacms/postfix . 
+
+Edit the `.secrets` with your smtp authentication.
+
+Usage:
+
+    docker run --rm  -t -i --env-file=.secret eeacms/postfix 

eionet/Dockerfile

+FROM eeacms/postfix:latest
+
+ENV MTP_HOST=docker.eionet.europa.eu
+ENV MTP_RELAY=ironport1.eea.europa.eu
+ENV MTP_PORT=8587
\ No newline at end of file

postfix.sh

 #!/bin/bash
 
 # Set up user
-function setup_secret {
-    echo "$MTP_HOST   $MTP_USER:$MTP_PASS" > /etc/postfix/relay_passwd
+function setup_conf_and_secret {
+    postconf -e "myhostname = $MTP_HOST"
+    postconf -e "relayhost = [$MTP_RELAY]:$MTP_PORT"
+    postconf -e 'smtp_sasl_auth_enable = yes'
+    postconf -e 'smtp_sasl_password_maps = hash:/etc/postfix/relay_passwd'
+    postconf -e 'smtp_sasl_security_options = noanonymous'
+    postconf -e 'smtp_tls_security_level = may'
+    postconf -e 'mynetworks = 127.0.0.0/8 172.17.0.0/16'
+    postconf -e 'inet_interfaces = all'
+
+    echo "$MTP_RELAY   $MTP_USER:$MTP_PASS" > /etc/postfix/relay_passwd
     postmap /etc/postfix/relay_passwd
 }
 
-setup_secret
+setup_conf_and_secret
 
-postfix start
+service rsyslog start
+service postfix start
 
-tail -f /var/log/mail.log
+touch /var/log/maillog
+tail -f /var/log/maillog

supervisord.conf

-[supervisord]
-nodaemon=true
-
-[program:postfix]
-command=/postfix.sh
-autostart=true
-autorestart=true
\ No newline at end of file