feat: added init app pipeline

pipelines/app-pipeline.yaml

@@ -0,0 +1,61 @@
+apiVersion: tekton.dev/v1beta1
+kind: Pipeline
+metadata:
+  name: app-pipeline
+  namespace: tekton-pipelines
+spec:
+  params:
+    - name: app-name
+    - name: git-url
+    - name: git-revision
+    - name: pr-number
+      default: ""
+    - name: event-type
+  workspaces:
+    - name: shared-data
+  tasks:
+    - name: fetch-repository
+      taskRef:
+        name: git-clone
+      workspaces:
+        - name: output
+          workspace: shared-data
+      params:
+        - name: url
+          value: $(params.git-url)
+        - name: revision
+          value: $(params.git-revision)
+
+    # 2. Build and Push Image (using standard Kaniko)
+    - name: build-and-push
+      runAfter: [fetch-repository]
+      taskRef:
+        name: kaniko
+      workspaces:
+        - name: source
+          workspace: shared-data
+      params:
+        - name: IMAGE
+          value: "ghcr.io/pingu-studio/$(params.app-name):$(params.git-revision)"
+
+    # 3. PREVIEW: Runs only on PR
+    - name: deploy-preview
+      when:
+        - input: "$(params.event-type)"
+          operator: in
+          values: ["pull_request"]
+      runAfter: [build-and-push]
+      taskRef:
+        name: manage-preview
+      workspaces:
+        - name: source
+          workspace: shared-data
+      params:
+        - name: app-name
+          value: $(params.app-name)
+        - name: pr-number
+          value: "$(params.pr-number)"
+        - name: image-tag
+          value: "$(params.git-revision)"
+        - name: action
+          value: "apply"