Dokku

[jbrooksuk]

Dokku uses Docker to create containers very quickly. Since the port is variable, how can I change the configuration to use the env variable of PORT?

[dbuxton]

Not sure I understand the question - I've looked at Dokku a while back but not recently.

If you're asking (as I think you are) how to make sure that the env variable used is not whatever you specify in conf/production.env but whatever Dokku/Docker gives you, I guess you'd want to sub it in to the upstart config that we create in fabfile.py: https://github.com/arachnys/cabot/blob/master/fabfile.py#L58

I'd love for someone to write a Docker deployment script for Cabot, if you do so make sure to send me a link and I'll add to the docs.

[bsdlp]

hey, does this mean there is a dockerfile being written for cabot? If not, I would be more than happy to help write one.

[dbuxton]

There isn't one yet, but if you come up with one I'll be sure to link to it/maintain it alongside the project. I'm not the right person to start work on it.

There's pretty detailed setup instructions/dependencies in https://github.com/arachnys/cabot/blob/master/bin/setup_dependencies.sh and https://github.com/arachnys/cabot/blob/master/fabfile.py. Let me know if you need anything else to make a start.

[GermanDZ]

I am interested in create a "dockered" version of cabot. Probably we will need many docker containers, to have only one process per container.

Feel free to contact me to coordinate efforts.

[dbuxton]

@GermanDZ that sounds great. At the moment we have the following:

1. Web process
2. Worker process (it's probably necessary to break out celerybeat into its own process though for this)
3. Redis server
4. Postgres server

I assume that there are off-the-shelf images for (3) and (4) we can use. Doing (1) and (2) shouldn't be too hard either, it's the same as for any Django app.

I notice that some similar efforts for other projects have just shoved everything inside a single container: see https://github.com/ekalinin/docker-sentry-postgres for example. It doesn't sound very pretty but could be appropriate for something quite small and self-contained like Cabot.

If we wanted to go down that route, perhaps it's easiest for you to create a repo and I'll link to it from the docs?

[bbonf]

Hi, I started working on it, but it's not ready yet: https://github.com/bbonf/docker-cabot

[shoonoise]

There is my implementation of Docker image for Cabot.

[dbuxton]

thanks @shoonoise - I've added something to the README, will add to cabotapp.com too in due course.