kn: use workspace instead of GitResource 🐐

This migrate kn to use `workspace` instead of an input
`GitResource`.

Signed-off-by: Vincent Demeester <vdemeest@redhat.com>

kn/knative-dockerfile-deploy/build_deploy/README.md

@@ -12,14 +12,14 @@ The following Pipeline definition refers:
   `kubectl create -f build_deploy_pipeline.yaml`
 
 ```yaml
-apiVersion: tekton.dev/v1alpha1
+apiVersion: tekton.dev/v1beta1
 kind: Pipeline
 metadata:
   name: buildah-build-kn-create
 spec:
-  resources:
+  workspaces:
   - name: source
-    type: git
+  resources:
   - name: image
     type: image
   params:
@@ -28,14 +28,32 @@ spec:
     description: Arguments to pass to kn CLI
     default:
       - "help"
+  - name: GIT_URL
+    type: string
+    description: Git url to clone
   tasks:
+  - name: fetch-repository
+    taskRef:
+      name: git-clone
+    workspaces:
+    - name: output
+      workspace: source
+    params:
+    - name: url
+      value: $(params.GIT_URL)
+    - name: subdirectory
+      value: ""
+    - name: deleteExisting
+      value: "true"
   - name: buildah-build
     taskRef:
       name: buildah
+    runAfter:
+      - fetch-repository
+    workspaces:
+    - name: source
+      workspace: source
     resources:
-      inputs:
-        - name: source
-          resource: source
       outputs:
         - name: image
           resource: image
@@ -77,16 +95,6 @@ Create the resource as `kubectl create -f resources.yaml`.
 ```yaml
 apiVersion: tekton.dev/v1alpha1
 kind: PipelineResource
-metadata:
-  name: buildah-build-kn-create-source
-spec:
-  type: git
-  params:
-    - name: url
-      value: "https://github.com/navidshaikh/helloworld-go"
----
-apiVersion: tekton.dev/v1alpha1
-kind: PipelineResource
 metadata:
   name: buildah-build-kn-create-image
 spec:
@@ -108,7 +116,7 @@ Save the following YAML in a file e.g.: `pipeline_run.yaml` and create PipelineR
 `kubectl create -f pipeline_run.yaml`.
 
 ```yaml
-apiVersion: tekton.dev/v1alpha1
+apiVersion: tekton.dev/v1beta1
 kind: PipelineRun
 metadata:
   generateName: buildah-build-kn-create-
@@ -117,13 +125,12 @@ spec:
   pipelineRef:
     name: buildah-build-kn-create
   resources:
-    - name: source
-      resourceRef:
-        name: buildah-build-kn-create-source
     - name: image
       resourceRef:
         name: buildah-build-kn-create-image
   params:
+    - name: GIT_URL
+      value: "https://github.com/navidshaikh/helloworld-go"
     - name: ARGS
       value:
         - "service"

kn/knative-dockerfile-deploy/build_deploy/build_deploy_pipeline.yaml

@@ -3,9 +3,9 @@ kind: Pipeline
 metadata:
   name: buildah-build-kn-create
 spec:
-  resources:
+  workspaces:
   - name: source
-    type: git
+  resources:
   - name: image
     type: image
   params:
@@ -14,14 +14,32 @@ spec:
     description: Arguments to pass to kn CLI
     default:
       - "help"
+  - name: GIT_URL
+    type: string
+    description: Git url to clone
   tasks:
+  - name: fetch-repository
+    taskRef:
+      name: git-clone
+    workspaces:
+    - name: output
+      workspace: source
+    params:
+    - name: url
+      value: $(params.GIT_URL)
+    - name: subdirectory
+      value: ""
+    - name: deleteExisting
+      value: "true"
   - name: buildah-build
     taskRef:
       name: buildah
+    runAfter:
+      - fetch-repository
+    workspaces:
+    - name: source
+      workspace: source
     resources:
-      inputs:
-        - name: source
-          resource: source
       outputs:
         - name: image
           resource: image

kn/knative-dockerfile-deploy/build_deploy/pipeline_run.yaml

@@ -7,13 +7,12 @@ spec:
   pipelineRef:
     name: buildah-build-kn-create
   resources:
-    - name: source
-      resourceRef:
-        name: buildah-build-kn-create-source
     - name: image
       resourceRef:
         name: buildah-build-kn-create-image
   params:
+    - name: GIT_URL
+      value: "https://github.com/navidshaikh/helloworld-go"
     - name: ARGS
       value:
         - "service"

kn/knative-dockerfile-deploy/build_deploy/resources.yaml

@@ -1,12 +1,3 @@
-apiVersion: tekton.dev/v1alpha1
-kind: PipelineResource
-metadata:
-  name: buildah-build-kn-create-source
-spec:
-  type: git
-  params:
-    - name: url
-      value: "https://github.com/navidshaikh/helloworld-go"
 ---
 apiVersion: tekton.dev/v1alpha1
 kind: PipelineResource