Support for adding annotations to deployment spec

[SamEdwardes]

Description

Users would like the ability to add annotations to the deployment spec. Right now it's possible to add annotations to the pod spec and to the service spec, but not the deployment spec.

apiVersion: apps/v1
kind: Deployment
metadata:
  annotations:
    reloader.stakater.com/auto: "true"

This request arose because I was talking to a user who is using a tool (https://github.com/stakater/Reloader) to automate redeployments when a secret changes. But that tool depends on an annotation being set on a deployment.

Approach

• Add new top level item to values.yaml:

deployment:
    annotations: {}

• Update the deployment template (https://github.com/rstudio/helm/blob/main/charts/rstudio-connect/templates/deployment.yaml) to add annotations set in values.yaml.

Other helm charts

If we would like to support this ability, we should add it to Workbench and Package Manager as well. I created an issue on Connect as a starting point to get the approach correct.