nicosingh/rpi-cron repository overview

⁠About

Docker image of Raspbian made to run schedules commands using cron.

⁠How to use this Docker image?

We can execute this image using docker-compose or just running a docker run command.

⁠Using docker-compose (a.k.a. "the easy way")

We should create a docker-compose file (e.g. docker-compose.yml) with at least:

my-container:
  image: nicosingh/rpi-cron
  volumes:
    - ./my-custom-script.sh:/cron-script.sh
  command: "* * * * * root /cron-script.sh"

Where:

image: nicosingh/rpi-cron:: will be consuming this image. You can create our own Dockerfile based on nicosingh/rpi-cron image and replace image: by build:, if required.

command: "* * * * * root /cron-script.sh": means to run /cron-script.sh every minute. This script must be placed inside our container (i.e. using a volume).

volumes: will mount external scripts to be run in cron. The destination name has to be the same as the command script (in the example cron-script.sh).

⁠Using docker run (a.k.a. "the boring way")

Is possible to run the same image using a sigle line docker command. It will be something like:

docker run -d -v "./my-custom-script.sh:/cron-script.sh" nicosingh/rpi-cron "* * * * * root /cron-script.sh"

Where:

-d: means to run in detached mode (in background).

-v "./my-custom-script.sh:/cron-script.sh": will mount external scripts to be run in cron. The destination name has to be the same as the command script (in the example cron-script.sh).

nicosingh/rpi-cron: will be consuming this image.

"* * * * * root /cron-script.sh": means to run /cron-script.sh every minute. This script must be placed inside our container (i.e. using a volume).

⁠Source Code

Gitlab: rpi-cron⁠