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refactor(docs): add components placement table #555

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refactor(docs): add components placement table #555

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22 changes: 22 additions & 0 deletions docs/internal/components_placement.md
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## Placement strategies

| Component | nodeSelector strategy | tolerations strategy | Specifics |
|---------------------------|-----------------------|----------------------|--------------------------------------------|
| virt-api | master | any-node | -> ApiService, webhooks |
| virt-operator | master | any-node | -> system/system |
| cdi-apiserver | master | any-node | ApiService, webhooks |
| virtualization-controller | master | any-node | validationwebhooks |
| virtualization-api | master | any-node | ApiService |
| virt-controller | system | system | |
| cdi-deployment | system | system | strategy set with infra settings in config |
| cdi-operator | system | system | |
| dvcr | system | system | |
| virt-handler | | any-node | |
| vm-route-forge | | any-node | (should be equal to virt-handler) |


**master + any-node** - Schedule to control-plane nodes.

**system + system** - Schedule to first matching node: NodeGroup/virtualization, NodeGroup/system and then control-plane.

**any-node** - Schedule to any node, including control-plane.
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