matrix-alertbot/docker

Docker

The docker image will run matrix-alertbot with a SQLite database and end-to-end encryption dependencies included. For larger deployments, a connection to a Postgres database backend is recommended.

Setup

The /data volume

The docker container expects the config.yaml file to exist at /data/config.yaml . To easily configure this, it is recommended to create a directory on your filesystem, and mount it as /data inside the container:

mkdir data

We'll later mount this directory into the container so that its contents persist across container restarts.

Creating a config file

Copy config.sample.yaml to a file named config.yaml inside of your newly created data directory. Fill it out as you normally would, with a few minor differences:

• The bot store directory should reside inside of the data directory so that it is not wiped on container restart. Change it from the default to /data/store . There is no need to create this directory yourself, it will be created on startup if it does not exist.

• The bot cache directory should reside inside of the data directory as well, so that alerts and silences related informations are not wiped on container restart. Change it from the default to /data/cache . There is no need to create this directory yourself, it will be created on startup if it does not exist.

Change any other config values as necessary. For instance, you may also want to store log files in the /data directory.

Running

First, create a volume for the data directory created in the above section:

docker volume create \
  --opt type=none \
  --opt o=bind \
  --opt device="/path/to/data/dir" matrix-alertbot

Start the bot with:

docker-compose up --build

This will run the bot and log the output to the terminal. You can instead run the container detached with the -d flag:

docker-compose up -d --build

(Logs can later be accessed with the docker-compose logs command).

This will build an optimized, production-ready container.

Systemd

A systemd service file is provided for your convenience at matrix-alertbot.service. The service uses docker-compose to start and stop the bot.

Copy the file to /etc/systemd/system/matrix-alertbot.service and edit to match your setup. You can then start the bot with:

systemctl start matrix-alertbot

and stop it with:

systemctl stop matrix-alertbot

To run the bot on system startup:

systemctl enable matrix-alertbot

Building the image

To build a production image from source, use the following docker build command from the repo's root:

docker build -t neutrinet/matrix-alertbot:latest -f docker/Dockerfile .