docksible 0.9.0

Deploy and set up Docker Compose based web apps with Ansible

Docksible

About

This is a tool you can run locally to install a given web app via Docker Compose onto a remote VPS. Though not recommended for serious enterprise grade production environments, it is well suited to quickly spin up an off the cuff demo server, or even a small production server.

Warning

This tool is still under development and not stable yet. Until version 1.0 becomes available, things can and will break between releases.

Features

• WordPress
• Redmine (open source issue tracker)
• SSL
• SSH proxy to tunnel hidden services like database
• Hopefully more soon ;-)

Requirements

• Local: Unix with Python 3.9 or newer. Tested this on Gentoo and Ubuntu Linux. Might work on macOS, but I don't know. Won't work on Windows, because it uses Ansible under the hood, which AFAIK is not supported for Windows.
• Remote: VPS running Ubuntu, or maybe other Debian based flavor, reachable via SSH. It should probably work on all Debian distros, but I have only tested on Ubuntu.

Installing

Intall with Pip: python -m pip install docksible

Usage

These examples should be self explanatory:

• docksible [e-mail] wordpress --letsencrypt --email [e-mail]
• docksible [e-mail] redmine --letsencrypt --email [e-mail]

Run the --help flag for all supported options.

Using the SSH proxy

You can include a simple SSH proxy into your app's Docker network, by passing the --ssh-proxy-flag. This will drop in a small container that you can use to port forward some hidden services, like the database. Here's how to do it:

• Include --ssh-proxy in the Docksible command (ex: docksible user@host wordpress --ssh-proxy)
• Set up the proxy service's authorized_keys file. This will be improved in the future, but until then:
  • SSH into your server as root
  • Copy root's .ssh/authorized_keys into docksible-volumes/ssh-proxy-data/
  • Shell into the proxy container, and basically chown -R proxy_user:proxy_user /home/proxy_user. This could also be improved, but for now, just needs to be done once.
• Now the proxy service is ready to use. For example:
  • Set up the tunnel to proxy the database:

  ssh -p 2222 [e-mail] -L 9000:docksible_db:3306
  

  • Connect to the database:

  mysql -u your_db_user -p --port=9000 --host=localhost --protocol=TCP
  

Known issues

When setting up a web app on Ubuntu 24.10 and newer, and doing so with the --letsencrypt flag, which is recommended, you must also set the --apparmor-workaround flag.

This because it seems that in Ubuntu 24.10 and newer, there is an issue with AppArmor that prevents Docker containers from being restarted, even when doing so as root, which occurs a few times in the Let's Encrypt role.

Setting the flag --apparmor-workaround will result in the raw command aa-remove-unknown being run on the server everytime before a container gets restarted. This workaround fixes the issue for now, but it is not elegant. Doing this on older versions results in a different error, hence the CLI option.

Altogether, it's tech debt, a temporary workaround, and will be removed soon. Also, the Let's Encrypt handling will be refactored and improved altogether. See these issues for more info:

• https://github.com/saint-hilaire/docksible/issues/27
• https://github.com/saint-hilaire/docksible/issues/24