title: Unable to Access Private Registry in Knative
body: <p>I am trying to push an example application to Knative however I am running into the following error message: </p>
  
  <p><code>Revision "..." failed with message: Unable to fetch image "...": unsupported status code 401; body: Not Authorized</code></p>
  
  <p>Knative is setup properly on EC2 and I've already created a service account and secret to pull from ECR. What am I missing? I'm not sure why Knative can't access my private AWS repository even though K8s (not Knative) is able to. </p>
  
  <p>Secret:</p>
  
  <pre><code>apiVersion: v1
  kind: Secret
  metadata:
    name: registry-push-secret
    annotations:
      build.knative.dev/docker-0: https://....
  type: kubernetes.io/basic-auth
  stringData:
    username: token
    password: &lt;token_value&gt;
  </code></pre>
  
  <p>Knative Secret: </p>
  
  <pre><code>kubectl create secret docker-registry secret-name --docker-server=https://... --docker-username=token --docker-password=&lt;token_value&gt;
  </code></pre>
  
  <p>Service Account: </p>
  
  <pre><code>apiVersion: v1
  kind: ServiceAccount
  metadata:
    name: test-sa
  secrets:
    - name: registry-push-secret
  imagePullSecrets:
    - name: secret-name
  </code></pre>
  
  <p>Knative Config:</p>
  
  <pre><code>apiVersion: serving.knative.dev/v1alpha1 
  kind: Service
  metadata:
    name: test 
    namespace: default
  spec:
    runLatest:
      configuration:
        revisionTemplate:
          spec:
            serviceAccountName: test-sa
            container:
              image: ... 
              imagePullPolicy: Always
              env:
                - name: TARGET 
                  value: "..."
  </code></pre>