How to access my pod in k8s using go-client

Question

I am using go-client to access k8s resources in my environment. There are APIs to get/list pods, namespaces, etc.

How do I access the pod that I am currently running on?

Answer 1

You can Expose Pod Information to Containers Through Environment Variables using pod fields:

apiVersion: v1
kind: Pod
metadata:
  name: dapi-envars-fieldref
spec:
  containers:
    - name: test-container
      ...
      ...
      env:
        - name: MY_NODE_NAME
          valueFrom:
            fieldRef:
              fieldPath: spec.nodeName
        - name: MY_POD_NAME
          valueFrom:
            fieldRef:
              fieldPath: metadata.name
        - name: MY_POD_NAMESPACE
          valueFrom:
            fieldRef:
              fieldPath: metadata.namespace
        - name: MY_POD_IP
          valueFrom:
            fieldRef:
              fieldPath: status.podIP
        - name: MY_POD_SERVICE_ACCOUNT
          valueFrom:
            fieldRef:
              fieldPath: spec.serviceAccountName
  restartPolicy: Never

then simply look up these env vars in your Go code:

log.Printf("MY_POD_NAME: %q", os.Getenv("MY_POD_NAME"))