/docker-postfix

Primary LanguageDockerfile

postfix image

This image provides an unofficial dockerized postfix image.

Table of Contents

  1. Supported tags and versions
  2. Quick reference
  3. How to use this image
    1. Run the container
    2. Use custom container
    3. Use bind mounts
    4. Available volumes

Supported tags and versions

Quick reference

How to use this image

Run the container

This container uses postfix default configuration. You can mount your configuration on /etc/postfix. Please note that the following files are default installation specific files and should not be mounted into the container.

  • dynamicmaps.cf
  • dynamicmaps.cf.d/
  • main.cf.proto
  • makedefs.out
  • master.cf.proto
  • postfix-files
  • postfix-files.d/

docker run -itd --name postfix -v /postfix/conf:/etc/postfix g0dscookie/postfix

Postfix Logs

Postfix only supports logging to a local syslog daemon on /dev/log. To get your logs you have to bind mount this socket:

docker run -itd --name postfix -v /dev/log:/dev/log g0dscookie/postfix

Use custom container

FROM g0dscookie/postfix
COPY config/ /etc/postfix/

Now build your container with $ docker build -t my-postfix ..

Available volumes

  • /queue
    • Here you can persistently store your postfix queue. You can still use the default /var/spool/postfix if you prefer.
  • /certificates
    • Here you can mount your certificates for postfix.
  • /etc/postfix
    • Postfix will load it's configuration from here.

Use bind mounts

$ docker run -d --name my-postfix -v /path/to/config:/conf -v /my/certificates:/certificates:ro -v /path/to/queue:/queue g0dscookie/postfix

Note that /path/to/config is a directory.

Second note: Do not override the files mentioned above.

Available volumes

  • /queue
    • Here you can persistently store your postfix queue.
  • /certificates
    • Here you can mount your certificates used by postfix.
  • /conf
    • Postfix configuration files.