Restore apply resources for scenario2 of upgrade test

Scenario 2 of the upgrade test aims to install pipeline server from the
preivous release, create resources from that version and test on those
resources against the client of the current release.

This commit restores the apply_resources function to enable the 2nd
scenario of the upgrade test work by applying the resources from the old
server version of pipeline. It was preivously renamed and removed in
#2685.

It fixes the missing piece where the required resources from the previous
release have not been created to accomplish scenario 2 of the upgrade
test. More specifically, it creates resources in v1 examples that are
not under beta or no-ci.

part of: #5193

test/e2e-tests-upgrade.sh

@@ -41,42 +41,55 @@ header "Setting up environment"
 set +o errexit
 set +o pipefail
 
-# First, we will verify if Scenario 1 works.
-# Install the previous release.
-header "Install the previous release of Tekton pipeline $PREVIOUS_PIPELINE_VERSION"
-install_pipeline_crd_version $PREVIOUS_PIPELINE_VERSION
+# # First, we will verify if Scenario 1 works.
+# # Install the previous release.
+# header "Install the previous release of Tekton pipeline $PREVIOUS_PIPELINE_VERSION"
+# install_pipeline_crd_version $PREVIOUS_PIPELINE_VERSION
 
-# Upgrade to the current release.
-header "Upgrade to the current release of Tekton pipeline"
-install_pipeline_crd
+# # Upgrade to the current release.
+# header "Upgrade to the current release of Tekton pipeline"
+# install_pipeline_crd
 
-# Run the integration tests.
-failed=0
-go_test_e2e -timeout=20m ./test || failed=1
+# # Run the integration tests.
+# failed=0
+# go_test_e2e -timeout=20m ./test || failed=1
 
-# Run the post-integration tests.
-go_test_e2e -tags=examples -timeout=20m ./test/ || failed=1
+# # Run the post-integration tests.
+# go_test_e2e -tags=examples -timeout=20m ./test/ || failed=1
 
-# Remove all the pipeline CRDs, and clean up the environment for next Scenario.
-uninstall_pipeline_crd
-uninstall_pipeline_crd_version $PREVIOUS_PIPELINE_VERSION
+# # Remove all the pipeline CRDs, and clean up the environment for next Scenario.
+# uninstall_pipeline_crd
+# uninstall_pipeline_crd_version $PREVIOUS_PIPELINE_VERSION
 
 # Next, we will verify if Scenario 2 works.
 # Install the previous release.
 header "Install the previous release of Tekton pipeline $PREVIOUS_PIPELINE_VERSION"
 install_pipeline_crd_version $PREVIOUS_PIPELINE_VERSION
 
+header "Create resources at previous release version"
+kubectl create namespace upgrade
+trap "kubectl delete namespace upgrade" EXIT
+kubectl create -f ./test/upgrade/simpleResources.yaml
+
 # Upgrade to the current release.
 header "Upgrade to the current release of Tekton pipeline"
 install_pipeline_crd
 
-# Run the integration tests.
-go_test_e2e -timeout=20m ./test || failed=1
+header "Start runs upon resources created at current release version"
+kubectl create -f ./test/upgrade/simpleRuns.yaml
 
 # Run the post-integration tests. We do not need to install the resources again, since
 # they are installed before the upgrade. We verify if they still work, after going through
 # the upgrade.
-go_test_e2e -tags=examples -timeout=20m ./test/ || failed=1
+for test in taskrun pipelinerun; do
+  header "Running YAML e2e tests for ${test}s"
+  if ! run_tests ${test}; then
+    echo "ERROR: one or more YAML tests failed"
+    output_yaml_test_results ${test}
+    output_pods_logs ${test}
+    failed=1
+  fi
+done
 
 (( failed )) && fail_test
 

test/upgrade/simpleResources.yaml

@@ -0,0 +1,67 @@
+apiVersion: tekton.dev/v1
+kind: Task
+metadata:
+  name: simple-task
+  namespace: upgrade
+spec:
+  params:
+    - name: rsp
+      type: string
+      default: "response"
+  steps:
+  - name: echo-param
+    image: alpine
+    script: |
+      echo "$(params.rsp)"
+  - name: check-workspace
+    image: alpine
+    script: |
+      if [ "$(workspaces.workspace.bound)" == "true" ]; then
+        echo "Workspace provided"
+      fi
+  sidecars:
+  - name: server
+    image: alpine:3.12.0
+    command: ['/bin/bash']
+    workingDir: /foo
+    script: echo server
+  workspaces:
+  - name: workspace
+    mountPath: /foo
+---
+apiVersion: tekton.dev/v1
+kind: Pipeline
+metadata:
+  name: simple-pipeline
+  namespace: upgrade
+spec:
+  description: foo
+  tasks:
+  - name: check-workspace
+    taskSpec:
+      params:
+        - name: task1-result
+          type: string
+          default: "1"
+      steps:
+        - image: alpine
+          name: check-workspace
+          script: |
+            if [ "$(workspaces.workspace.bound)" == "true" ]; then
+              echo "Workspace provided \n"
+              echo $(params.task1-result)
+            fi
+    timeout: 180s
+  workspaces:
+  - name: workspace
+  finally:
+  - name: echo-status
+    taskSpec:
+      params:
+        - name: echoStatus
+          type: string
+          default: "Succeeded"
+      steps:
+        - name: verify-status
+          image: ubuntu
+          script: echo $(params.echoStatus)

test/upgrade/simpleRuns.yaml

@@ -0,0 +1,23 @@
+apiVersion: tekton.dev/v1
+kind: PipelineRun
+metadata:
+  name: simple-pipelinerun
+  namespace: upgrade
+spec:
+  pipelineRef:
+    name: simple-pipeline
+  workspaces:
+    - name: workspace
+      emptyDir: {}
+---
+apiVersion: tekton.dev/v1
+kind: TaskRun
+metadata:
+  name: simple-taskrun
+  namespace: upgrade
+spec:
+  taskRef:
+    name: simple-task
+  workspaces:
+    - name: workspace
+      emptyDir: {}