expose failurePolicy in values .yaml

[Aimen618]

Is your feature request related to a problem? Please describe. the following parameter failurePolicy is hardcoded to ignore and it will be useful if we make it configurable: webhooks:

• name: webhook.pod.dynatrace.com reinvocationPolicy: IfNeeded failurePolicy: Ignore

Describe the solution you'd like change it to: {{.Values.webhook.mutatingWebhook.failurePolicy}}

Describe alternatives you've considered manual patching after the chart deployment

Additional context link to code: https://github.com/Dynatrace/dynatrace-operator/blob/v1.1.0/config/helm/chart/default/templates/Common/webhook/mutatingwebhookconfiguration.yaml#L25

[chrismuellner]

This has the implication that a failure in the webhook or problems with the webhook deployment, in general, would block the rollout of any pods that are expected to be monitored. We have added many features to reduce the impact of failure in any of our monitoring components on the general cluster. Still, we can make this setting configurable.

We'll add this in a future release of the Operator.