feat(release): add Louhi release pipeline configuration

Author: taeold

.louhi/flow.yaml

@@ -0,0 +1,21 @@
+apiVersion: louhi/v2
+kind: Flow
+metadata:
+  name: Build and Release
+spec:
+  sourceRepositoryName: functions-framework-nodejs
+  environmentName: default
+  pipeline:
+    stages:
+    - name: Build
+      index: 1
+      stageTypeName: Build
+    - name: Release
+      index: 2
+      stageTypeName: Release
+  triggers:
+  - name: Tag Created Trigger
+    type: tag-trigger
+    parameters:
+      repositoryName: functions-framework-nodejs
+      tagRegularExpression: "^v[0-9]+[\\.0-9]*$"

.louhi/repository.yaml

@@ -0,0 +1,9 @@
+apiVersion: louhi/v2
+kind: Repository
+metadata:
+  name: functions-framework-nodejs
+spec:
+  url: https://serverless.googlesource.com/functions-framework-nodejs
+  branchFilter: ^(main)$
+  tagFilter: null
+  triggerOnInitialization: false

.louhi/stage_type_build.yaml

@@ -0,0 +1,10 @@
+apiVersion: louhi/v2
+kind: StageType
+metadata:
+  name: Build
+spec:
+  description: 'Build and test Functions Framework Node.js'
+  runtime: kokoro
+---
+kokoroJobName: cloud-functions-framework-team/functions-framework-releases/nodejs/build
+injectLouhiParameters: true

.louhi/stage_type_release.yaml

@@ -0,0 +1,10 @@
+apiVersion: louhi/v2
+kind: StageType
+metadata:
+  name: Release
+spec:
+  description: 'Release Functions Framework Node.js to npm'
+  runtime: kokoro
+---
+kokoroJobName: cloud-functions-framework-team/functions-framework-releases/nodejs/release
+injectLouhiParameters: true