Automation: Tour of Beam infrastructure deployment (apache#25793)

* Added Terraform scripts for TOB infra

* ToB Frontend related updates

* Update settings.gradle.kts

* Deleted redundant file and minor README change

* Addressing comments in the PR

* Added newline at the end of variables.tf file

* Update README.md

* Updates related to Tour of Beam infrastructure

* Update locals.tf

* Output.tf updates

* Update output.tf

* Updates

* Update main.tf

* Updates to cloudfunctions_bucket variable

* service_account_id changes

* Update main.tf

* Update README.md

* Update README.md

* Update README.md

* Update README.md

* Update README.md

* Bulk update of terraform scripts

* Update README.md

* Update README.md

* Datastore_namespace updates

* Update README.md

* Update README.md

* Update README.md

* Update README.md

* Update main.tf

* Update README.md

* Update README.md

* Update README.md

* Some minor TF updates

* Update README.md

learning/tour-of-beam/frontend/firebase.json

@@ -0,0 +1,16 @@
+{
+  "hosting": {
+    "public": "build/web",
+    "ignore": [
+      "firebase.json",
+      "**/.*",
+      "**/node_modules/**"
+    ],
+    "rewrites": [
+      {
+        "source": "**",
+        "destination": "/index.html"
+      }
+    ]
+  }
+}

learning/tour-of-beam/terraform/README.md

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+<!--
+    Licensed to the Apache Software Foundation (ASF) under one
+    or more contributor license agreements.  See the NOTICE file
+    distributed with this work for additional information
+    regarding copyright ownership.  The ASF licenses this file
+    to you under the Apache License, Version 2.0 (the
+    "License"); you may not use this file except in compliance
+    with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+    Unless required by applicable law or agreed to in writing,
+    software distributed under the License is distributed on an
+    "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+    KIND, either express or implied.  See the License for the
+    specific language governing permissions and limitations
+    under the License.
+-->
+# The Tour of Beam deployment on GCP
+This guide provides instructions on how to deploy the Tour of Beam environment on Google Cloud Platform (GCP) and Firebase environment.
+Before starting the deployment, ensure that you have the following prerequisites in place:
+
+## Prerequisites:
+
+1. [GCP project](https://cloud.google.com/resource-manager/docs/creating-managing-projects)
+2. [GCP User account](https://cloud.google.com/appengine/docs/standard/access-control?tab=python) _(Note: You will find the instruction "How to create User account" for your new project)_<br>
+   Ensure that the account has at least following privileges:
+   - Cloud Datastore Owner
+   - Create Service Accounts
+   - Security Admin
+   - Service Account User
+   - Service Usage Admin
+   - Storage Admin
+   - Kubernetes Engine Cluster Viewer
+
+3. [Google Cloud Storage bucket](https://cloud.google.com/storage/docs/creating-buckets) for saving deployment state
+
+4. An OS with the following software installed:
+
+* [Flutter (3.7.3 >)](https://docs.flutter.dev/get-started/install)
+* [Dart SDK (2.19.2)](https://dart.dev/get-dart)
+* [Firebase-tools CLI](https://www.npmjs.com/package/firebase-tools)
+* [Terraform](https://www.terraform.io/downloads)
+* [gcloud CLI](https://cloud.google.com/sdk/docs/install-sdk)
+* [Kubectl authentication plugin](https://cloud.google.com/blog/products/containers-kubernetes/kubectl-auth-changes-in-gke)
+
+5. Existing Beam Playground environment
+
+6. Apache Beam Git repository cloned locally
+
+# Prepare deployment configuration:
+
+
+1. Navigate to Apache Beam cloned repository's `beam/learning/tour-of-beam/terraform` directory
+
+```
+cd beam/learning/tour-of-beam/terraform
+```
+
+2. Configure authentication for the Google Cloud Platform (GCP). _(Note: Authentication to the GCP Project required to run gcloud commands)_<br>
+
+```
+gcloud init
+
+gcloud auth application-default login
+```
+
+3. Configure authentication in the GCP Docker registry:
+```
+ gcloud auth configure-docker `chosen_region`-docker.pkg.dev
+```
+
+4. And the authentication in GCP Google Kubernetes Engine: _(Note: Authentication to docker and GKE required to fetch GRPC router ip:port info)_<br>
+```
+gcloud container clusters get-credentials --region `chosen_gke_zone` `gke_name` --project `project_id`
+```
+
+5. Create datastore indexes:
+```
+gcloud datastore indexes create ../backend/internal/storage/index.yaml
+```
+
+# Deploy the Tour of Beam Backend Infrastructure:
+
+6. Initialize terraform
+```
+terraform init -backend-config="bucket=`created_gcs_bucket`"
+```
+
+7. Run terraform apply to create Tour-Of-Beam backend infrastructure
+
+```
+terraform plan -var "gcloud_init_account=$(gcloud config get-value core/account)" \
+-var "environment=prod" \
+-var "region=us-west1" \
+-var "project_id=$(gcloud config get-value project)" \
+-var "datastore_namespace=playground-datastore-namespace" \
+-var "pg_router_host=$(kubectl get svc -l app=backend-router-grpc -o jsonpath='{.items[0].status.loadBalancer.ingress[0].ip}:{.items[0].spec.ports[0].port}')"
+```
+
+```
+terraform apply -var "gcloud_init_account=$(gcloud config get-value core/account)" \
+-var "environment=prod" \
+-var "region=us-west1" \
+-var "project_id=$(gcloud config get-value project)" \
+-var "datastore_namespace=playground-datastore-namespace" \
+-var "pg_router_host=$(kubectl get svc -l app=backend-router-grpc -o jsonpath='{.items[0].status.loadBalancer.ingress[0].ip}:{.items[0].spec.ports[0].port}')"
+```
+
+Where:
+- **environment** - Infrastructure environment name
+- **region** - GCP region for your infrastructure
+- **datastore_namespace** - Beam Playground Datastore's namespace
+
+# Deploy the Tour of Beam Frontend Infrastructure:
+
+8. Update config.dart configuration file under beam/learning/tour-of-beam/frontend/lib:
+
+   8.1. Navigate to beam/learning/tour-of-beam/frontend/lib.
+
+   8.2. Update config.dart file, replacing values in ${ } with your actual values.
+
+Where:
+- **${cloudfunctions_region}** - region where GCP Cloud Functions have been deployed
+- **${project_id}** - GCP project where infrastructure being deployed
+- **${environment}** - Infrastructure environment name
+- **${dns_name}** - DNS record name reserved for Beam Playground environment
+
+```
+const _cloudFunctionsProjectRegion = '${cloudfunctions_region}';
+const _cloudFunctionsProjectId = '${project_id}';
+const cloudFunctionsBaseUrl = 'https://'
+   '$_cloudFunctionsProjectRegion-$_cloudFunctionsProjectId'
+   '.cloudfunctions.net/${environment}_';
+
+
+const String kAnalyticsUA = 'UA-73650088-2';
+const String kApiClientURL =
+'https://router.${dns_name}';
+const String kApiJavaClientURL =
+'https://java.${dns_name}';
+const String kApiGoClientURL =
+'https://go.${dns_name}';
+const String kApiPythonClientURL =
+'https://python.${dns_name}';
+const String kApiScioClientURL =
+'https://scio.${dns_name}';
+```
+
+9. Create file .firebaserc under beam/learning/tour-of-beam/frontend
+
+   9.1. Navigate to beam/learning/tour-of-beam/frontend.
+
+   9.2. Create .firebaserc file with the following content.
+
+Where:
+- **${project_id}** - GCP project where infrastructure being deployed
+
+```
+{
+"projects": {
+"default": "${project_id}"
+   }
+}
+```
+
+10. Login into the Firebase CLI
+
+```
+# To use an interactive mode (forwards to a browser webpage)
+firebase login
+```
+
+```
+# To use non-interactive mode (generates link)
+firebase login --no-localhost
+```
+
+
+11. Create Firebase Project
+
+```
+firebase projects:addfirebase
+```
+
+12. Create Firebase Web App and prepare Firebase configuration file
+
+```
+firebase apps:create WEB ${webapp_name} --project=$(gcloud config get-value project)
+```
+
+Once Firebase Web App has been created, there will be following output example:
+
+```
+Create your WEB app in project cloudbuild-383310:
+✔ Creating your Web app
+
+🎉🎉🎉 Your Firebase WEB App is ready! 🎉🎉🎉
+
+App information:
+- App ID: WEBAPP_ID
+- Display name: WEBAPP_NAME
+
+You can run this command to print out your new app's Google Services config:
+firebase apps:sdkconfig WEB WEBAPP_ID
+```
+
+Copy and paste into the terminal last line to get Web App configuration.
+
+Output example:
+
+```
+✔ Downloading configuration data of your Firebase WEB app
+// Copy and paste this into your JavaScript code to initialize the Firebase SDK.
+// You will also need to load the Firebase SDK.
+// See https://firebase.google.com/docs/web/setup for more details.
+
+firebase.initializeApp({
+  "projectId": "cloudbuild-384304",
+  "appId": "1:1111111111:web:111111111111",
+  "storageBucket": "cloudbuild-384304.appspot.com",
+  "locationId": "us-west1",
+  "apiKey": "someApiKey",
+  "authDomain": "cloudbuild-384304.firebaseapp.com",
+  "messagingSenderId": "111111111111"
+});
+```
+
+Copy the lines inside the curly braces and redact them.
+
+You will need to:
+
+1) Remove "locationId" line.
+2) Remove quotes (") from key of "key": "value" pair.
+   3) E.g. `projectId: "cloudbuild-384304"`
+4) In overall, redacted and ready to be inserted data should be as follows:
+
+```
+   projectId: "cloudbuild-384304",
+   appId: "1:1111111111:web:111111111111",
+   storageBucket: "cloudbuild-384304.appspot.com",
+   apiKey: "someApiKey",
+   authDomain: "cloudbuild-384304.firebaseapp.com",
+   messagingSenderId: "111111111111"
+```
+
+Paste (replace) the redacted data inside the parentheses in beam/learning/tour-of-beam/frontend/lib/firebase_options.dart file.
+
+```
+static const FirebaseOptions web = FirebaseOptions(
+
+
+);
+```
+
+13. Run flutter and firebase commands to deploy Tour of Beam frontend
+
+Navigate to beam/playground/frontend/playground_components and run flutter commands
+
+```
+# Go to beam/playground/frontend/playground_components first
+flutter pub get
+flutter pub run build_runner build --delete-conflicting-outputs
+```
+
+Navigate to beam/learning/tour-of-beam/frontend and run flutter commands
+
+```
+# Go to beam/learning/tour-of-beam/frontend first
+flutter pub get
+flutter pub run build_runner build --delete-conflicting-outputs
+flutter build web --profile --dart-define=Dart2jsOptimization=O0
+firebase deploy --project=$(gcloud config get-value project)
+```
+
+# Validate the deployment of the Tour of Beam:
+
+14. Open the Tour of Beam webpage in a web browser (Hosting URL will be provided in terminal output) to ensure that deployment has been successfully completed.
+
+Example:
+```
+✔  Deploy complete!
+
+Project Console: https://console.firebase.google.com/project/some-gcp-project-id/overview
+Hosting URL: https://some-gcp-project-id.web.app
+```

learning/tour-of-beam/terraform/api_enable/main.tf

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+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License.  You may obtain a copy of the License at
+#
+#   http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing,
+# software distributed under the License is distributed on an
+# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+# KIND, either express or implied.  See the License for the
+# specific language governing permissions and limitations
+# under the License.
+
+# GCP API Services to be enabled
+resource "google_project_service" "required_services" {
+  for_each  = toset([
+    "cloudresourcemanager",
+    "iam",
+    "cloudbuild",
+    "cloudfunctions",
+    "firebase"
+  ])
+  service   = "${each.key}.googleapis.com"
+  disable_on_destroy = false
+}