Description

Allow more specific targeting of the sidecar injector. Currently the injector targets all pods in all namespaces. This triggers a warning on GKE and makes it difficult to run multiple dapr runtimes in the same cluster. This PR makes customization of the webhook config easier for this case.

Issue reference

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Checklist

Please make sure you've completed the relevant tasks for this PR, out of the following list:

• Code compiles correctly
• Created/updated tests
• Unit tests passing
• End-to-end tests passing
• Extended the documentation / Created issue in the https://github.com/dapr/docs/ repo: dapr/docs#[issue number]
• Specification has been updated / Created issue in the https://github.com/dapr/docs/ repo: dapr/docs#[issue number]
• Provided sample for the feature / Created issue in the https://github.com/dapr/docs/ repo: dapr/docs#[issue number]