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Document EXEC_LABEL behavior in conjunction with conf.d

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Frederik Ring 2024-03-04 20:31:11 +01:00
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4
docs/how-tos/run-custom-commands.md
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@ -46,6 +46,10 @@ If you have more than one `docker-volume-backup` container (possibly across seve
multiple backup schedules, you will need to use `EXEC_LABEL` in the configuration and a `docker-volume-backup.exec-label` label on each
container using custom commands to ensure that the commands are only run by the correct `docker-volume-backup` instance.
{: .important }
In case you use `EXEC_LABEL` together with configuration mounted from `conf.d` it's important to understand that a distinct `EXEC_LABEL` __should be set in each configuration__.
Else, schedules that do not specify an `EXEC_LABEL` will still trigger commands on all containers with such labels, no matter whether they specify `docker-volume-backup.exec-label` or not.
```yml
version: '3'

4
docs/index.md
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@ -88,7 +88,7 @@ docker run --rm \
Alternatively, pass a `--env-file` in order to use a full config as described below.
### Available image registries
## Available image registries
This Docker image is published to both Docker Hub and the GitHub container registry.
Depending on your preferences and needs, you can reference both `offen/docker-volume-backup` as well as `ghcr.io/offen/docker-volume-backup`:
@ -100,7 +100,7 @@ docker pull ghcr.io/offen/docker-volume-backup:v2
Documentation references Docker Hub, but all examples will work using ghcr.io just as well.
### Supported Engines
## Supported Engines
This tool is developed and tested against the Docker CE engine exclusively.
While it may work against different implementations (e.g. Balena Engine), there are no guarantees about support for non-Docker engines.