Add example and README.md

README.md

@@ -0,0 +1,61 @@
+# Terraform GCP Cloud Run
+
+This is a Terraform module to provision GCP Cloud Run to serve your container application or service
+
+## Resources 
+
+This Terraform module will create below resources:
+
+* Google Container Image
+* Google Service Account for Cloud Run
+* Google Cloud Run service
+
+## Dependencies
+
+* Terraform: ~> 1.0.0
+* Terraform provider: hashicorp/archive v2.2.0
+* Terraform provider: hashicorp/google v3.88.0
+* Terraform provider: kreuzwerker/docker v2.15.0
+* Terraform provider: hashicorp/null v3.1.0
+* Terraform provider: hashicorp/random v3.1.0
+
+## Input Variables
+| Variable Name         | Data Type    | Is Required                       | Default Value | Description                                                                                              |
+|-----------------------|--------------|-----------------------------------|---------------|----------------------------------------------------------------------------------------------------------|
+| service_name          | string       | yes                               |               | The name of your service, e.g. `my-web`, `ashari`, `ashweb`, or `andi-web`                               |
+| gcp_project_name      | string       | yes                               |               | The name of your GCP project                                                                             |
+| gcp_region            | string       | yes                               |               | The name of GCP region                                                                                   |
+| remove_image_when_destroy         | bool       | no           | true              | When you destroy the stacks, do you want to remove all of the images as well?                                   |
+| docker_source_path    | string       | yes |               | The path of the service/application source code                                |
+| docker_region    | string       | no |               | The default region name, available value `asia`, `us`, `eu`                                |
+| container_concurrency  | string         | no                                | 30         | The maximum concurrent per container                                        |
+| container_port          | string       | no  |  3000             | The port to access the container                                 |
+| container_cpu           | string       | no  |   2000m            | The amount of CPU allocated for the container                |
+| container_memory         | string       | no  |  4096Mi             | The amount of memory allocated for the container                                                                             |
+
+## Output Variables
+
+* **docker-image-url**: A generated docker image URL
+* **docker-image-tag**: A generated docker image tag
+* **service-endpoint**: A generated service URL
+
+## Sample Usage
+
+### Simple Implementation
+
+```
+module "gcp-cloud-run" {
+  source = "git@github.com:aashari/terraform-gcp-cloud-run.git?ref=v1.0.0"
+
+  service_name       = "ashxyz"
+  gcp_project_name   = "ashari-tech-main"
+  gcp_region         = "asia-southeast2"
+  docker_source_path = "src"
+  docker_region      = "asia"
+}
+
+```
+
+## Contribute
+
+Feel free to contribute, don't forget to raise an issue first then create a PR with referenced to that issue, thanks!

examples/.gitignore

@@ -0,0 +1 @@
+testing

examples/simple/main.tf

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+module "gcp-cloud-run" {
+  source = "../../"
+
+  service_name       = "ashxyz"
+  gcp_project_name   = "ashari-tech-main"
+  gcp_region         = "asia-southeast2"
+  docker_source_path = "src"
+  docker_region      = "asia"
+}

examples/simple/src/Dockerfile

@@ -0,0 +1,19 @@
+## Stage-1: 
+## Build image ~300MB
+FROM node:16 as build
+
+WORKDIR /app
+COPY ./src /app/
+
+RUN npm install
+
+## Stage-2: 
+## Deployment image ~70MB
+FROM node:16-slim
+
+WORKDIR /app 
+COPY --from=build /app .
+
+EXPOSE 3000
+
+CMD ["node", "index.js"]

examples/simple/src/index.js

@@ -0,0 +1,11 @@
+const express = require('express')
+const app = express()
+const port = 3000
+
+app.get('/', (req, res) => {
+  res.send('Hello World!')
+})
+
+app.listen(port, () => {
+  console.log(`Example app listening at http://localhost:${port}`)
+})

main.tf

@@ -34,8 +34,8 @@ resource "google_service_account" "run" {
 }
 
 resource "google_project_iam_member" "run-iam" {
-  role    = "roles/editor"
-  member  = "serviceAccount:${google_service_account.run.email}"
+  role   = "roles/editor"
+  member = "serviceAccount:${google_service_account.run.email}"
 }
 
 resource "google_cloud_run_service" "run" {
@@ -87,3 +87,26 @@ resource "google_cloud_run_service_iam_member" "member" {
   role     = "roles/run.invoker"
   member   = "allUsers"
 }
+
+resource "null_resource" "image-removal" {
+
+  count = var.remove_image_when_destroy == true ? 1 : 0
+
+  triggers = {
+    docker_image_url          = local.docker_image_url
+    remove_image_when_destroy = var.remove_image_when_destroy
+  }
+
+  provisioner "local-exec" {
+    when    = destroy
+    command = <<EOT
+      gcloud container images list-tags ${self.triggers.docker_image_url} --format=json \
+        | grep "tags" -A1 \
+        | tail -n 1 \
+        | sed -e 's/^[ \t]*//' \
+        | cut -d '"' -f 2 \
+        | xargs -L1 -I'{}' gcloud container images delete ${self.triggers.docker_image_url}:{} --force-delete-tags
+    EOT
+  }
+
+}

output.tf

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+output "docker-image-url" {
+  value       = local.docker_image_url
+  description = "A generated docker image URL"
+}
+
+output "docker-image-tag" {
+  value       = data.archive_file.init.output_sha
+  description = "A generated docker image tag"
+}
+
+output "service-endpoint" {
+  value       = google_cloud_run_service.run.status[0].url
+  description = "A generated service URL"
+}

variables.tf

@@ -13,6 +13,12 @@ variable "gcp_region" {
   type        = string
 }
 
+variable "remove_image_when_destroy" {
+  description = "When you destroy the stacks, do you want to remove all of the images as well?"
+  type        = bool
+  default     = true
+}
+
 variable "docker_source_path" {
   description = "The path of the service/application source code"
   type        = string