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Adds scopeUID config to enable multiple instances of Watchtower (#511)

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* Adds scopeUID config to enable multiple instances of Watchtower

* Adds tests for multiple instance support with scopeuid

* Adds docs on scope monitoring and multiple instance support

* Adds multiple instances docs to mkdocs config file

* Changes multiple instances check and refactors naming for scope feature

* Applies linter suggestions

* Fixes documentation on Watchtower monitoring scope
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Victor Moura 2020-08-21 15:13:47 -03:00 • committed by GitHub
parent 5efb249a86
commit 6a18ee911e
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14 changed files with 160 additions and 24 deletions
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docs/container-selection.md
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@ -23,3 +23,9 @@ Or, it can be specified as part of the `docker run` command line:
```bash
docker run -d --label=com.centurylinklabs.watchtower.enable=true someimage
```
If you wish to create a monitoring scope, you will need to [run multiple instances and set a scope for each of them](https://containrrr.github.io/watchtower/running-multiple-instances).
Watchtower filters running containers by testing them against each configured criteria. A container is monitored if all criteria are met. For example:
- If a container's name is on the monitoring name list (not empty `--name` argument) but it is not enabled (_centurylinklabs.watchtower.enable=false_), it won't be monitored;
- If a container's name is not on the monitoring name list (not empty `--name` argument), even if it is enabled (_centurylinklabs.watchtower.enable=true_ and `--label-enable` flag is set), it won't be monitored;