Fix e2e tests

Fix the url of pipeline release.yaml as it was pointing to old
release urls and was installing 0.7 till now, as 0.10.1 got released to
both url's today, tests started failing

So better fetch the latest release yaml from last release on github

test/e2e-common.sh

@@ -23,11 +23,23 @@
 
 # Helper functions for E2E tests.
 
+# Check if we have a specific RELEASE_YAML global environment variable to use
+# instead of detecting the latest released one from tektoncd/pipeline releases
+RELEASE_YAML=${RELEASE_YAML:-}
+
 source $(dirname $0)/../vendor/github.com/tektoncd/plumbing/scripts/e2e-tests.sh
 
 function install_pipeline_crd() {
+  local latestreleaseyaml
   echo ">> Deploying Tekton Pipelines"
-  kubectl apply -f https://storage.googleapis.com/tekton-releases/latest/release.yaml || fail_test "Tekton Pipeline installation failed"
+  if [[ -n ${RELEASE_YAML} ]];then
+	  latestreleaseyaml=${RELEASE_YAML}
+  else
+    latestreleaseyaml=$(curl -s https://api.github.com/repos/tektoncd/pipeline/releases|python -c "import sys, json;x=json.load(sys.stdin);ass=x[0]['assets'];print([ x['browser_download_url'] for x in ass if x['name'] == 'release.yaml'][0])")
+  fi
+  [[ -z ${latestreleaseyaml} ]] && fail_test "Could not get latest released release.yaml"
+  kubectl apply -f ${latestreleaseyaml} ||
+    fail_test "Tekton pipeline installation failed"
 
   # Make sure that eveything is cleaned up in the current namespace.
   for res in pipelineresources tasks pipelines taskruns pipelineruns; do

test/e2e-tests-ingress.sh

@@ -162,7 +162,7 @@ spec:
     - name: ServiceUID
       value: ${SERVICE_UID}
   timeout: 1000s
-  serviceAccount: default
+  serviceAccountName: default
 DONE
 wait_until_taskrun_completed ${INGRESS_TASKRUN_NAME}