docker compose for kanidm-mail-sender? #4457

andreas-bulling · 2026-07-10T13:56:27Z

andreas-bulling
Jul 10, 2026

The documentation shows a docker create command to start kanidm-mail-sender but this prevents many tools from checking whether there is a new image available (at least as far as I understand/tried).

What would a docker-compose version of this command look like? One that uses the (same) kanidm default network and that I could add to the same docker-compose.yaml file as kanidm itself?

Thanks a lot!

Answered by andreas-bulling

Jul 10, 2026

Solved myself - at least the command (default network I am not sure):

  kanidm-mail-sender:
    container_name: kanidm-mail-sender
    restart: "always"
    image: kanidm/tools:latest
    user: "1001:1001"
    command: ["/sbin/kanidm-mail-sender", "-c", "/data/config", "-m", "/data/mail-sender"]
    volumes:
      - type: bind
        source: /etc/kanidm
        target: /data
    cap_add:
      - NET_BIND_SERVICE
    networks:
      - default

View full answer

andreas-bulling · 2026-07-10T14:15:19Z

andreas-bulling
Jul 10, 2026
Author

Solved myself - at least the command (default network I am not sure):

  kanidm-mail-sender:
    container_name: kanidm-mail-sender
    restart: "always"
    image: kanidm/tools:latest
    user: "1001:1001"
    command: ["/sbin/kanidm-mail-sender", "-c", "/data/config", "-m", "/data/mail-sender"]
    volumes:
      - type: bind
        source: /etc/kanidm
        target: /data
    cap_add:
      - NET_BIND_SERVICE
    networks:
      - default

2 replies

yaleman Jul 13, 2026
Maintainer

That looks right, but you don't need to specify network unless you're specifying networks in general 😄

If you wanted it to pull the latest you'd need to set pull_policy: always or similar - https://docs.docker.com/reference/compose-file/services/#pull_policy (ooh, I just realised there's daily/weekly/every_<x> as well!)

andreas-bulling Jul 13, 2026
Author

I thought it wouldn't harm to have both services in the same network. But I don't know enough docker to figure out how to do this. I could not specify the kanidm_default network for the kanidm-mail-sender service as it is still unknown when running docker compose Maybe using an external network...?!

I actually changed to image: kanidm/tools:devel in the meanwhile - hoping this solves my relay_host problems.

yaleman · 2026-07-14T23:26:51Z

yaleman
Jul 14, 2026
Maintainer

FWIW here's an example docker compose config (which integrates auth and automagic self-signed cert setup - https://github.com/yaleman/kanidm-mail-relay-test

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