BACKREST_PORT not honored in Docker

[mmomjian]

Describe the bug
Per the docs, the port can be changed with BACKREST_PORT. However, when setting BACKREST_PORT set, the listening port is not changed. Thank you!

logs:
2025-01-17T14:15:11.975-0500 INFO starting web server :9898

docker-compose.yml:

      BACKREST_PORT: '0.0.0.0:17249'

docker inspect backrest (sections):

        "Args": [
            "--",
            "/backrest",
            "--bind-address",
            ":9898"
        ],
            "Env": [
                "BACKREST_PORT=0.0.0.0:17249",

To Reproduce
Set BACKREST_PORT

Expected behavior
Backrest listening port changes

Platform Info

• Debian 12, Backrest 2.32.1

[garethgeorge]

Good point -- for others looking at this issue the best workaround is by using docker port mapping e.g.

-p 1234:9898. You can also override the entrypoint command for the container and specify your own --bind-address flags. This is non-standard for most docker containers however and probably needs fixing. I think backrest should probably start providing a wrapper script that sets these defaults, perhaps with the next major version release.