ci: install Tekton and PAC in cluster by default (knative#2896)

* ci: install Tekton and PAC in cluster by default

* add PAC and Tekton to hack script versions

* fix tekton affinity workaround

Author: lkingland

.github/workflows/ci.yaml

@@ -171,8 +171,6 @@ jobs:
           echo "------------------ finished! attempt $attempt ------------------"
       - name: Setup testing images
         run: ./hack/setup-testing-images.sh
-      - name: Deploy Tekton
-        run: ./hack/install-tekton.sh
       - name: Deploy Test Git Server
         run: ./hack/install-git-server.sh
       - name: E2E On Cluster Test

.github/workflows/test-e2e-oncluster-runtime.yaml

@@ -42,8 +42,6 @@ jobs:
           echo "------------------ finished! attempt $attempt ------------------"
       - name: Setup testing images
         run: ./hack/setup-testing-images.sh
-      - name: Deploy Tekton
-        run: ./hack/install-tekton.sh
       - name: Deploy Test Git Server
         run: ./hack/install-git-server.sh
       - name: E2E On Cluster Test (Runtimes)

.github/workflows/test-e2e-oncluster.yaml

@@ -40,8 +40,6 @@ jobs:
           echo "------------------ finished! attempt $attempt ------------------"
       - name: Setup testing images
         run: ./hack/setup-testing-images.sh
-      - name: Deploy Tekton
-        run: ./hack/install-tekton.sh
       - name: Deploy Test Git Server
         run: ./hack/install-git-server.sh
       - name: E2E On Cluster Test

.github/workflows/test-integration.yaml

@@ -52,10 +52,6 @@ jobs:
         run: ./hack/registry.sh
       - name: Setup testing images
         run: ./hack/setup-testing-images.sh
-      - name: Install Tekton
-        run: ./hack/install-tekton.sh
-      - name: Install Pipelines as Code
-        run: ./hack/install-pac.sh
       - name: Install Gitlab
         run: ./hack/install-gitlab.sh
       - name: Patch Hosts

docs/building-functions/on_cluster_build.md

@@ -3,7 +3,11 @@
 This guide describes how you can build a Function on Cluster with Tekton Pipelines. The on cluster build is enabled by fetching Function source code from a remote Git repository. Buildpacks or S2I builder strategy can be used to build the Function image.
 
 ## Prerequisite
-1. Install Tekton Pipelines on the cluster. Please refer to [Tekton Pipelines documentation](https://github.com/tektoncd/pipeline/blob/main/docs/install.md) or run the following command:
+1. Install Tekton Pipelines on the cluster.
+
+   **Note:** If you're using `./hack/allocate.sh` for development/testing, Tekton and PAC are automatically installed.
+
+   For production environments, please refer to [Tekton Pipelines documentation](https://github.com/tektoncd/pipeline/blob/main/docs/install.md) or run the following command:
 ```bash
 kubectl apply -f https://storage.googleapis.com/tekton-releases/pipeline/previous/v0.49.0/release.yaml
 ```

hack/allocate.sh

@@ -37,12 +37,14 @@ main() {
   echo "evt:  Eventing and Namespace"
   echo "reg:  Local Registry"
   echo "dpr:  Dapr Runtime"
+  echo "tkt:  Tekton Pipelines"
   echo ""
 
   ( set -o pipefail; (serving && dns && networking) 2>&1 | sed  -e 's/^/svr /')&
   ( set -o pipefail; (eventing && namespace) 2>&1 | sed  -e 's/^/evt /')&
   ( set -o pipefail; registry 2>&1 | sed  -e 's/^/reg /') &
   ( set -o pipefail; dapr_runtime 2>&1 | sed  -e 's/^/dpr /')&
+  ( set -o pipefail; (tekton && pac) 2>&1 | sed  -e 's/^/tkt /')&
 
   local job
   for job in $(jobs -p); do
@@ -368,6 +370,70 @@ EOF
   echo "${green}✅ Dapr Runtime${reset}"
 }
 
+tekton() {
+  echo "${blue}Installing Tekton ${tekton_version} ${reset}"
+
+  tekton_release="previous/${tekton_version}"
+  namespace="${NAMESPACE:-default}"
+
+  $KUBECTL apply -f "https://storage.googleapis.com/tekton-releases/pipeline/${tekton_release}/release.yaml"
+  sleep 10
+  $KUBECTL wait pod --for=condition=Ready --timeout=180s -n tekton-pipelines -l "app=tekton-pipelines-controller"
+  $KUBECTL wait pod --for=condition=Ready --timeout=180s -n tekton-pipelines -l "app=tekton-pipelines-webhook"
+  sleep 10
+
+  $KUBECTL create clusterrolebinding "${namespace}:knative-serving-namespaced-admin" --clusterrole=knative-serving-namespaced-admin --serviceaccount="${namespace}:default"
+
+  # TEMPORARY WORKAROUND: Disable affinity assistant to prevent pod scheduling issues
+  # This is a workaround for issues where affinity assistant pod names don't match
+  # what's expected by task pods, causing them to fail scheduling.
+  # Related issues:
+  # - https://github.com/tektoncd/pipeline/issues/6740
+  # - https://github.com/tektoncd/pipeline/issues/7503
+  # TODO: Remove this workaround once the underlying Tekton issue is resolved
+  echo "${blue}- Disabling affinity assistant (temporary workaround)${reset}"
+  $KUBECTL patch configmap feature-flags -n tekton-pipelines \
+    -p '{"data":{"disable-affinity-assistant":"true"}}' \
+    --type=merge
+
+  echo "${green}✅ Tekton${reset}"
+}
+
+pac() {
+  echo "${blue}Installing PAC (Pipelines-as-Code) ${pac_version} ${reset}"
+
+  local -r pac_ctr_host="${PAC_CONTROLLER_HOSTNAME:-pac-ctr.127.0.0.1.sslip.io}"
+
+  # Install Pipelines as Code
+  $KUBECTL apply -f "https://raw.githubusercontent.com/openshift-pipelines/pipelines-as-code/release-${pac_version}/release.k8s.yaml"
+  sleep 5
+  $KUBECTL wait pod --for=condition=Ready -l '!job-name' -n pipelines-as-code --timeout=5m
+
+  # Install ingress for the PaC controller. This is used by VCS Webhooks.
+  $KUBECTL apply -f - << EOF
+apiVersion: networking.k8s.io/v1
+kind: Ingress
+metadata:
+  name: pipelines-as-code
+  namespace: pipelines-as-code
+spec:
+  ingressClassName: contour-external
+  rules:
+  - host: ${pac_ctr_host}
+    http:
+      paths:
+      - backend:
+          service:
+            name: pipelines-as-code-controller
+            port:
+              number: 8080
+        pathType: Prefix
+        path: /
+EOF
+  echo "the Pipeline as Code controller is available at: http://${pac_ctr_host}"
+  echo "${green}✅ PAC${reset}"
+}
+
 next_steps() {
   echo -e ""
   echo -e "${blue}Next Steps${reset}"

hack/cmd/update-knative-components/main.go

@@ -1,3 +1,23 @@
+// Package main implements a tool for automatically updating component
+// versions for use in the hack/* scripts.
+//
+// Files interacted with:
+//  1. The source-of-truth file at hack/component-versions.json
+//  2. Autogenerated script at hack/component-versions.sh
+//
+// Usage:
+//
+// Most of the time this file will be used in a workflow that will run
+// on scheduled basis checking if a new latest version of corresponding
+// components exists (check components in 'Versions' struct). Please note that
+// KindNode is NOT being updated programmatically at this time.
+// When new latest version is detected, the program will create a PR in
+// knative/func repository with the latest changes allowing the CI/CD workflows
+// to run automatically before using the latest in main branch.
+//
+// Alternative use: You can run this file from hack/ directory to locally
+// regenerate 2 files mentioned above (if you made some changes etc.) - you can
+// use the root Makefile for your convenience -- 'make regenerate-kn-components'
 package main
 
 import (
@@ -14,31 +34,6 @@ import (
 	github "github.com/google/go-github/v68/github"
 )
 
-// -------------------------------------------------------------------------- \\
-// ---------------------------- File description ---------------------------- \\
-//
-// #update-knative-components/main.go -- This file takes care of updating
-// knative components programatically.
-//
-// Files interacted with:
-// 1) The source-of-truth file and its content can be found at
-// root/hack/component-versions.json
-// 2) autogenerated script in root/hack/component-versions.sh (2 directories up)
-//
-// How to use this file:
-// Most of the time this file will be used in a workflow that will run
-// on scheduled basis checking if a new latest version of corresponding
-// components exists (check components in 'Versions' struct). Please note that
-// KindNode is NOT being updated programatically at this time.
-// When new latest version is detected, the program will create a PR in
-// knative/func repository with the latest changes allowing the CI/CD workflows
-// to run automatically before using the latest in main branch.
-// Alternative use: You can run this file from hack/ directory to locally
-// regenerate 2 files mentioned above (if you made some changes etc.) - you can
-// use the root Makefile for your convenience -- 'make regenerate-kn-components'
-//
-// -------------------------------------------------------------------------- \\
-
 const (
 	fileScript string = "component-versions.sh"
 	fileJson   string = "component-versions.json"
@@ -59,6 +54,8 @@ set_versions() {
 	knative_serving_version="{{.Serving}}"
 	knative_eventing_version="{{.Eventing}}"
 	contour_version="{{.Contour}}"
+	tekton_version="{{.Tekton}}"
+	pac_version="{{.Pac}}"
 }
 `
 )
@@ -69,6 +66,8 @@ type Versions struct {
 	Serving  string
 	Eventing string
 	Contour  string
+	Tekton   string
+	Pac      string
 }
 
 func main() {
@@ -367,7 +366,7 @@ func prExists(ctx context.Context, c *github.Client, title string) (bool, error)
 // -------------------------------------------------------------------------- \\
 // -------------------------------------------------------------------------- \\
 
-// This is used when running this file with 1st argument "generate".
+// This is used when running this file with 1st argument "local".
 // Regenerate written files (source (.json) & autogenerated .sh file)
 // Generally you wont use this, but in case you make local changes to the
 // files, you can simply regenerate them with this

hack/cmd/update-knative-components/main_test.go

@@ -25,14 +25,18 @@ set_versions() {
 	knative_serving_version="v1.2.3"
 	knative_eventing_version="v1.4.5"
 	contour_version="v1.4.6"
+	tekton_version="v0.56.4"
+	pac_version="v0.24.6"
 }
 `
 
 const expectedJson string = `{
 	"KindNode": "v1.30",
 	"Serving": "v1.2.3",
 	"Eventing": "v1.4.5",
-	"Contour": "v1.4.6"
+	"Contour": "v1.4.6",
+	"Tekton": "v0.56.4",
+	"Pac": "v0.24.6"
 }
 `
 
@@ -44,7 +48,9 @@ func TestRead(t *testing.T) {
 	"Serving": "v1.14",
 	"Eventing": "v1.15",
 	"Contour": "v1.61",
-	"KindNode": "1.3456"
+	"KindNode": "1.3456",
+	"Tekton": "v0.50.0",
+	"Pac": "v0.20.0"
 }
 `
 	tmpJson := path.Join(dir, "json.json")
@@ -72,6 +78,8 @@ func TestWrite(t *testing.T) {
 		Eventing: "v1.4.5",
 		Contour:  "v1.4.6",
 		KindNode: "v1.30",
+		Tekton:   "v0.56.4",
+		Pac:      "v0.24.6",
 	}
 
 	// write to script (generate it)

hack/component-versions.json

@@ -2,5 +2,7 @@
 	"KindNode": "v1.32.0@sha256:c48c62eac5da28cdadcf560d1d8616cfa6783b58f0d94cf63ad1bf49600cb027",
 	"Serving": "v1.18.1",
 	"Eventing": "v1.18.1",
-	"Contour": "v1.18.0"
+	"Contour": "v1.18.0",
+	"Tekton": "v0.56.4",
+	"Pac": "v0.24.6"
 }

hack/component-versions.sh

@@ -14,4 +14,6 @@ set_versions() {
 	knative_serving_version="v1.18.1"
 	knative_eventing_version="v1.18.1"
 	contour_version="v1.18.0"
+	tekton_version="v0.56.4"
+	pac_version="v0.24.6"
 }