K
Q

Using different Secrets in sts replicas

12/9/2019

I'm trying to use different secrets on a StatefulSet, based on the index o the pods. Here is the things I tried:

      env:
        - name: POD_NAME
          valueFrom:
            fieldRef:
              apiVersion: v1
              fieldPath: metadata.name

        - name: SECRET_KEY
          valueFrom:
            secretKeyRef:
              key: key
              name: mysecret-$(POD_NAME)

        - name: SECRET_HOST
          value: myhost-$(POD_NAME)

However, mysecret-$(POD_NAME) is not correctly sobstituted as parameter, while myhost-$(POD_NAME) acts correcly.

How can I solve this problem? The goal is to set different variables from secret/configmaps on different replicas of the StatefulSet.

-- Marco Reply
environment-variables
kubernetes
kubernetes-secrets

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1 Answer

12/9/2019

AFAIK this is not supported. The only volumes you can have differ are the PVs. Instead you would use a single secret with keys or whatnot based on the pod index, and write your software to read from the correct key.

-- coderanger
Source: StackOverflow