This PR adds the src validate kube subcommand for validating Sourcegraph deployments on Kubernetes.
Features include:
pod validation
service validation
PVC validation
network connection validation between Sourcegraph services
Validations can also include warnings for non-failure states that should be addressed.
Kubernetes cluster configuration is handled via standard kubeconfig file in users home directory or can be specified with --kubeconfig flag. Users can also specify a specific namespace via --namespace flag.
TODO:
Add --quiet flag to silence command line output in CI/CD pipelines
Update CHANGELOG.md
Test plan
Locally tested changes using latest Sourcegraph Helm install.
Added unit tests in internal/validate/kube/kube_test.go.
ran go test ./... - all tests passing
ran staticcheck ./... - no issues found in new code
