Add folder and files for skeleton cloud deploy delivery pipeline. (#3029)

release/clouddeploy/README.md

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+# Cloud Deploy Configuration
+
+This directory contains the Google Cloud Deploy configuration files for the Nomulus project.
+
+## Files
+
+### `delivery-pipeline.yaml`
+Defines the `DeliveryPipeline` resource named `deploy-nomulus`. It sets up the serial pipeline for rolling out changes to different targets.
+
+### Target Configurations (e.g., `crash-target.yaml`)
+Files matching this format define the `Target` resources for Cloud Deploy. They specify the GKE cluster and other environment-specific settings for deployment.
+
+### `skaffold.yaml`
+Defines the Skaffold configuration used by Cloud Deploy to render and deploy the application manifests.
+
+## Usage
+
+You can apply or modify these configurations in Google Cloud by using the `gcloud` CLI. For example:
+
+```bash
+gcloud deploy apply --file=<config-file>.yaml --project=<project-id> --region=<region>
+```

release/clouddeploy/crash-target.yaml

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+
+apiVersion: deploy.cloud.google.com/v1
+kind: Target
+metadata:
+  name: crash
+requireApproval: true
+executionConfigs:
+- usages:
+  - RENDER
+  - DEPLOY
+  - ANALYSIS
+  - POSTDEPLOY
+  executionTimeout: 3600s
+  defaultPool:
+    # Placeholder: Replace with artifact bucket name.
+    artifactStorage: gs://_artifact_bucket_
+    # Placeholder: Replace with project number.
+    serviceAccount: _project_number_-compute@developer.gserviceaccount.com
+gke:
+  # Placeholder: Replace with project ID, location, and cluster name.
+  cluster: projects/_project_id_/locations/_location_/clusters/_cluster_name_

release/clouddeploy/delivery-pipeline.yaml

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+apiVersion: deploy.cloud.google.com/v1
+kind: DeliveryPipeline
+metadata:
+  name: deploy-nomulus
+description: deploy-nomulus is a Cloud native replacement for Spinnaker that enables
+  gradual rollouts and SLA-based canary analysis for Nomulus.
+serialPipeline:
+  stages:
+  - targetId: crash
+    profiles:
+    - crash

release/clouddeploy/skaffold.yaml

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+# skaffold.yaml
+apiVersion: skaffold/v4beta7
+kind: Config
+metadata:
+  name: nomulus-skaffold
+profiles:
+- name: crash
+  manifests:
+    rawYaml:
+    - ../jetty/kubernetes/nomulus-crash-backend.yaml
+    - ../jetty/kubernetes/nomulus-crash-console.yaml
+    - ../jetty/kubernetes/nomulus-crash-frontend.yaml
+    - ../jetty/kubernetes/nomulus-crash-pubapi.yaml
+  deploy:
+    kubectl: { }