Request Tracker for Kubernetes

Docker image of Request Tracker setup to be run under Kubernetes, though it should work fine under "just docker", too.

It includes RT::Extension::REST2, RT::Authen::Token and RT::Extension::MergeUsers.

A prebuild version is available on quay.io/abh/rt.

docker pull quay.io/abh/rt:latest

How to configure RT

Make a volume mounted into /opt/rt/etc/RT_SiteConfig.d/ with one or more configuration files (file extension .pm).

How to run

To test under docker, something like

mkdir RT_SiteConfig.d
vi RT_SiteConfig.d/myrt.pm
docker run -i --rm \
    -v `pwd`/RT_SiteConfig.d:/opt/rt/etc/RT_SiteConfig.d/ \
    -p 8000:8000 \
    quay.io/abh/rt:latest

Then access the RT installation on port 8000.

For development you might want to leave out --rm. I like including it to not have a bunch of "dead" containers around and to discourage editing anything in a non-reproducible way.

How to configure incoming mail

You need your mailhost to run rt-mailgate to submit mail into the system, or a variation that does the same.

I use another kubernetes pod running sparkpost-rt to process mail handled by SparkPost.

If your mail goes into something like gmail it should be reasonably straightforward to setup a container with a pop or imap client to do this, too.

How to configure outgoing mail

The docker container sends mail via "localhost port 25". In kubernetes you can run a second container in the pod listening on port 25. I use namshi/smtp for this, relaying to a "real" mailhost. It's easy to configure it to use gmail or Amazon SES. I again use SparkPost as a "generic SMTP relay", any SMTP service should work.

RT really wants to use a program to send mail. The busybox sendmail regularly (but not always?) quit with some error or didn't like the parameters RT provided. mini-sendmail requires the -f parameter and the sender address to not have a space between them.

Instead I patched RT to allow sending mail via SMTP. Use 'smtp' as the configured MailCommand.

How to make a custom build

You can make a custom build based on this with your own Dockerfile, along the lines of:

FROM quay.io/abh/rt:latest

# install a module from CPAN
RUN cpanm RT::Extension::Demo

# Install a module from the current directory might work, too. Adding a .tar.gz would for sure. 
ADD Local-Module /tmp/
RUN cpanm /tmp/Local-Module/

# Add some file
ADD something.html /opt/rt/share/html/something.html