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GitLab Bot 2022-04-16 21:09:40 +00:00
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17
doc/user/clusters/agent/gitops.md
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@ -19,6 +19,8 @@ By combining GitLab, Kubernetes, and GitOps, you can have:
- GitLab as the GitOps operator.
- Kubernetes as the automation and convergence system.
- GitLab CI/CD for Continuous Integration and the agent for Continuous Deployment.
- Built-in automatic drift remediation.
- Resource management with [server-side applies](https://kubernetes.io/docs/reference/using-api/server-side-apply/) for transparent multi-actor field management.
This diagram shows the repositories and main actors in a GitOps deployment:
@ -107,6 +109,21 @@ a Kubernetes SIG project. You can read more about the available annotations in t
- [Learn more about apply sort ordering](https://github.com/kubernetes-sigs/cli-utils#apply-sort-ordering).
- [Learn more about apply-time mutation](https://github.com/kubernetes-sigs/cli-utils#apply-time-mutation).
## Automatic drift remediation
Drift happens when the current configuration of an infrastructure resource differs from its expected configuration.
Typically, this is caused by manually editing resources directly through the service that created the resource. Minimizing the
risk of drift helps to ensure configuration consistency and successful operations.
In GitLab, the agent for Kubernetes regularly compares the expected state from the `git` repository with
the known state from the `cluster`. Deviations from the `git` state are fixed at every check. These checks
happen automatically every 5 minutes. They are not configurable.
The agent uses [server-side applies](https://kubernetes.io/docs/reference/using-api/server-side-apply/).
As a result, every field in a resource can have different managers. Only fields managed by `git`
are checked for drift. This facilitates the use of in-cluster controllers to modify resources like
[Horizontal Pod Autoscalers](https://kubernetes.io/docs/tasks/run-application/horizontal-pod-autoscale/).
## Additional resources
The following documentation and examples can help you get started with a GitOps workflow.

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doc/user/search/global_search/advanced_search_syntax.md
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@ -26,8 +26,8 @@ The examples link to a search on GitLab.com to help you visualize the output.
|---|---|
[`“display bug”`](https://gitlab.com/search?snippets=&scope=issues&repository_ref=&search=%22display+bug%22&group_id=9970&project_id=278964) | Returns the **exact phrase** _display bug_ (stemming still applies). |
[`bug -display`](https://gitlab.com/search?snippets=&scope=issues&repository_ref=&search=bug+-display&group_id=9970&project_id=278964) | Results include _bug_, and **exclude** _display_. |
[`bug \| display`](https://gitlab.com/search?snippets=&scope=issues&repository_ref=&search=bug+display+%7C+banner&group_id=9970&project_id=278964) | Results include _bug_ **or** _display_. |
[`bug \| (display +banner)`](https://gitlab.com/search?snippets=&scope=issues&repository_ref=&search=bug+%7C+%28display+%2Bbanner%29&group_id=9970&project_id=278964) | Results include _bug_ **or** _display_ **and** _banner_. |
[<code>bug &#124; display</code>](https://gitlab.com/search?snippets=&scope=issues&repository_ref=&search=bug+%7C+banner&group_id=9970&project_id=278964) | Results include _bug_ **or** _display_. |
[<code>bug &#124; (display +banner)</code>](https://gitlab.com/search?snippets=&scope=issues&repository_ref=&search=bug+%7C+%28display+%2Bbanner%29&group_id=9970&project_id=278964) | Results include _bug_ **or** _display_ **and** _banner_. |
| [`bug error 50*`](https://gitlab.com/search?snippets=&scope=issues&repository_ref=&search=bug+error+50*&group_id=9970&project_id=278964) | `*` finds **partial matches**. Results include _bug_, _error_, and the partial _50_ (looking for any 500 errors, for example). |
| [`bug \-display`](https://gitlab.com/search?snippets=&scope=blobs&repository_ref=&search=argument+%5C-last&group_id=9970&project_id=278964) | `\` **scapes symbols**. Results include _bug_ **and** _-display_. |