Pick Target Application by Selector instead of Label

[arodindev]

Question

Hello, suppose i have the following two deployment definitions - note that they both have the same label.

my-app.yaml:

kind: Deployment
apiVersion: apps/v1
metadata:
  name: my-app
  namespace: default
  labels:
    app: my-app
spec:
  replicas: 1
  selector:
    matchLabels:
      app: my-app

my-app-primary.yaml:

kind: Deployment
apiVersion: apps/v1
metadata:
  name: my-app-primary
  namespace: default
  labels:
    app: my-app
spec:
  replicas: 1
  selector:
    matchLabels:
      app: my-app-primary

Now I would like to be able to select the deployment with selector my-app-primary. However, the dashboard does not provide an option to specify the selector. I can only select deployment by its label, but as you can see the label are identcial in both deployments. Is this possible with Litmus?

[neelanjan00]

How about adding a unique label to the specific deployment you want to target?

[smitthakkar96]

I think there are other use cases where one could really benefit from having support label selector instead of single label. One use-case that comes to my mind is automated fault injection to canary pods on rollout. The canary pods might have same app label but different label to identify if it's primary or canary or blue/green.