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Add support for horizontal pod autoscaling (#1676)
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docs/user-guide/advanced-configuration/horizontal-pod-autoscaler.md
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### Horizontal Pod Autoscaler (HPA) | ||
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Horizontal Pod Autoscaler allows Kubernetes to scale the number of replicas of | ||
deployments in response to configured metrics. | ||
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This feature conflicts with the operators ability to manage the number of static | ||
replicas to create for each deployment. | ||
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The use of the settings below will tell the operator to not manage the replicas | ||
field on the identified deployments even if a replicas count has been set for those | ||
properties in the operator resource. | ||
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| Name | Description | Default | | ||
| -----------------------| ----------------------------------------- | ------- | | ||
| web_manage_replicas | Indicates operator should control the | true | | ||
| | replicas count for the web deployment. | | | ||
| | | | | ||
| task_manage_replicas | Indicates operator should control the | true | | ||
| | replicas count for the task deployment. | | | ||
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#### Recommended Settings for HPA | ||
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Please see the Kubernetes documentation on how to configure the horizontal pod | ||
autoscaler. | ||
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The values for optimal HPA are cluster and need specific so general guidelines | ||
are not available at this time. |
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...ser-guide/advanced-configuration/scaling-the-web-and-task-pods-independently.md
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#### Scaling the Web and Task Pods independently | ||
#### Scaling the Web and Task Pods independently | ||
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You can scale replicas up or down for each deployment by using the `web_replicas` or `task_replicas` respectively. You can scale all pods across both deployments by using `replicas` as well. The logic behind these CRD keys acts as such: | ||
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- If you specify the `replicas` field, the key passed will scale both the `web` and `task` replicas to the same number. | ||
- If you specify the `replicas` field, the key passed will scale both the `web` and `task` replicas to the same number. | ||
- If `web_replicas` or `task_replicas` is ever passed, it will override the existing `replicas` field on the specific deployment with the new key value. | ||
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These new replicas can be constrained in a similar manner to previous single deployments by appending the particular deployment name in front of the constraint used. More about those new constraints can be found in the [Assigning AWX pods to specific nodes](./assigning-awx-pods-to-specific-nodes.md) page. | ||
These new replicas can be constrained in a similar manner to previous single deployments by appending the particular deployment name in front of the constraint used. More about those new constraints can be found in the [Assigning AWX pods to specific nodes](./assigning-awx-pods-to-specific-nodes.md) page. | ||
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##### Horizontal Pod Autoscaling | ||
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The operator is capable of working with Kubernete's HPA capabilities. See [Horizontal Pod Autoscaler](./horizontal-pod-autoscaler.md) | ||
documentation for more information. |
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