Auto-update dependencies (#660)

Produced via:
  `dep ensure -update knative.dev/test-infra`
/assign mattmoor

Gopkg.lock

@@ -1245,14 +1245,14 @@
 
 [[projects]]
   branch = "master"
-  digest = "1:e873112f19e9ce823bc01ca715de355bd5cf8e4d6045ed5f34b3eb0d6ec2c655"
+  digest = "1:615f3c6b974179c583edf50234fd87c5731d02ef941f314cbd4dd2766d3a619a"
   name = "knative.dev/test-infra"
   packages = [
     "scripts",
     "tools/dep-collector",
   ]
   pruneopts = "UT"
-  revision = "5449c8bad49d3528b5cb0b58a0cdce0f8a526f03"
+  revision = "816123d5e71fb88533d1564c331443387967e1dc"
 
 [[projects]]
   digest = "1:8730e0150dfb2b7e173890c8b9868e7a273082ef8e39f4940e3506a481cf895c"

vendor/knative.dev/test-infra/scripts/e2e-tests.sh

@@ -323,10 +323,9 @@ function setup_test_cluster() {
     abort "kubeconfig context set to ${k8s_cluster}, which is forbidden"
 
   # If cluster admin role isn't set, this is a brand new cluster
-  # Setup the admin role and also KO_DOCKER_REPO
-  if [[ -z "$(kubectl get clusterrolebinding cluster-admin-binding 2> /dev/null)" ]]; then
+  # Setup the admin role and also KO_DOCKER_REPO if it is a GKE cluster
+  if [[ -z "$(kubectl get clusterrolebinding cluster-admin-binding 2> /dev/null)" && "${k8s_cluster}" =~ ^gke_.* ]]; then
     acquire_cluster_admin_role ${k8s_user} ${E2E_CLUSTER_NAME} ${E2E_CLUSTER_REGION} ${E2E_CLUSTER_ZONE}
-    kubectl config set-context ${k8s_cluster} --namespace=default
     # Incorporate an element of randomness to ensure that each run properly publishes images.
     export KO_DOCKER_REPO=gcr.io/${E2E_PROJECT_ID}/${E2E_BASE_NAME}-e2e-img/${RANDOM}
   fi
@@ -335,9 +334,12 @@ function setup_test_cluster() {
   is_protected_gcr ${KO_DOCKER_REPO} && \
     abort "\$KO_DOCKER_REPO set to ${KO_DOCKER_REPO}, which is forbidden"
 
-  echo "- Project is ${E2E_PROJECT_ID}"
+  # Use default namespace for all subsequent kubectl commands in this context
+  kubectl config set-context ${k8s_cluster} --namespace=default
+
+  echo "- gcloud project is ${E2E_PROJECT_ID}"
+  echo "- gcloud user is ${k8s_user}"
   echo "- Cluster is ${k8s_cluster}"
-  echo "- User is ${k8s_user}"
   echo "- Docker is ${KO_DOCKER_REPO}"
 
   export KO_DATA_PATH="${REPO_ROOT_DIR}/.git"