Added Devops assessment code

.github/workflows/push.yaml

@@ -0,0 +1,57 @@
+name: Push the Docker image to AWS ECR Repo & ECR Service
+on:
+  push:
+    branches:
+      - chirag-devops-assessment
+
+jobs:
+  Build:
+    name: Build
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v2
+
+      - name: Configure AWS credentials
+        uses: aws-actions/configure-aws-credentials@v1
+        with:
+          aws-access-key-id: ${{ secrets.AWS_ACCESS_KEY_ID }}
+          aws-secret-access-key: ${{ secrets.AWS_SECRET_ACCESS_KEY }}
+          aws-region: ap-south-1
+
+      - name: Login to Amazon ECR
+        id: login-ecr
+        uses: aws-actions/amazon-ecr-login@v1
+
+      - name: Get commit hash
+        id: get-commit-hash
+        run: echo "::set-output name=commit-hash::$(git rev-parse --short HEAD)"
+
+      - name: Get timestamp
+        id: get-timestamp
+        run: echo "::set-output name=timestamp::$(date +'%Y-%m-%d-%H-%M')"
+
+      - name: Build, tag, and push the image to Amazon ECR
+        id: build-image
+        env:
+          ECR_REGISTRY: ${{ steps.login-ecr.outputs.registry }}
+          ECR_REPOSITORY: ${{ secrets.REPO_NAME }}
+          IMAGE_TAG: ${{ steps.get-commit-hash.outputs.commit-hash }}-${{ steps.get-timestamp.outputs.timestamp }}
+        run: |
+          docker build -t $ECR_REGISTRY/$ECR_REPOSITORY:$IMAGE_TAG .
+          docker push $ECR_REGISTRY/$ECR_REPOSITORY:$IMAGE_TAG
+
+      - name: Setup Terraform with specified version on the runner
+        uses: hashicorp/setup-terraform@v2
+        with:
+          terraform_version: 1.7.4
+
+      - name: Terraform Apply
+        id: init
+        run: |
+          cd terraform/
+          terraform init
+          terraform validate
+          terraform plan
+          terraform apply -auto-approve -var image_tag=${{ steps.get-commit-hash.outputs.commit-hash }}-${{ steps.get-timestamp.outputs.timestamp }}
+

.gitignore

@@ -38,4 +38,8 @@ testem.log
 .DS_Store
 Thumbs.db
 
-.nx/cache
+.nx/cache
+
+.terraform
+.terraform.lock.hcl
+terraform.tfstate

Dockerfile

@@ -0,0 +1,20 @@
+# Use an official Node.js runtime as a parent image
+FROM node:21.7.3-alpine3.20
+
+# Set the working directory in the container
+WORKDIR /app
+
+# Copy package.json and package-lock.json
+COPY package*.json ./
+
+# Install dependencies
+RUN npm install
+
+# Copy the rest of the application code
+COPY . .
+
+# Expose the port the app runs on
+EXPOSE 3000
+
+# Command to run the application
+CMD ["npx", "nx", "serve", "pt-notification-service"]

terraform/autoscaling.tf

@@ -0,0 +1,27 @@
+resource "aws_appautoscaling_target" "ecs_target" {
+  max_capacity       = 2
+  min_capacity       = 1
+  resource_id        = "service/${aws_ecs_cluster.devops_assessment_cluster.name}/${aws_ecs_service.devops_assessment_ecs_service.name}"
+  scalable_dimension = "ecs:service:DesiredCount"
+  service_namespace  = "ecs"
+}
+
+
+resource "aws_appautoscaling_policy" "ecs_policy" {
+  name               = "scale-down"
+  policy_type        = "StepScaling"
+  resource_id        = aws_appautoscaling_target.ecs_target.resource_id
+  scalable_dimension = aws_appautoscaling_target.ecs_target.scalable_dimension
+  service_namespace  = aws_appautoscaling_target.ecs_target.service_namespace
+
+  step_scaling_policy_configuration {
+    adjustment_type         = "ChangeInCapacity"
+    cooldown                = 60
+    metric_aggregation_type = "Maximum"
+
+    step_adjustment {
+      metric_interval_upper_bound = 0
+      scaling_adjustment          = -1
+    }
+  }
+}

terraform/cluster.tf

@@ -0,0 +1,3 @@
+resource "aws_ecs_cluster" "devops_assessment_cluster" {
+  name = "devopsAssessmentCluster"
+}

terraform/ecr.tf

@@ -0,0 +1,3 @@
+resource "aws_ecr_repository" "devops_assessment_repository" {
+    name = "devops-assessment-repository"
+}

terraform/main.tf

@@ -0,0 +1,7 @@
+terraform {
+  backend "s3" {
+    bucket = "devops-assessment-chirag-terraform"
+    key    = "terraform.tfstate"
+    region = "ap-south-1"
+  }
+}

terraform/provider.tf

@@ -0,0 +1,3 @@
+provider "aws" {
+    region = "ap-south-1"
+}

terraform/service.tf

@@ -0,0 +1,33 @@
+resource "aws_ecs_task_definition" "devops_assessment_etd" {
+  family                   = "devopsAssessmentTd"
+  network_mode             = "awsvpc"
+  requires_compatibilities = ["FARGATE"]
+  cpu                      = "256"
+  memory                   = "512"
+  execution_role_arn       = "arn:aws:iam::279660579228:role/ecsTaskExecutionRole"
+
+  container_definitions = jsonencode([{
+    name      = "devops-assessment"
+    image     = "${aws_ecr_repository.devops_assessment_repository.repository_url}:${var.image_tag}"
+    essential = true
+    portMappings = [{
+      containerPort = 3000
+      hostPort      = 3000
+    }]
+  }])
+}
+
+resource "aws_ecs_service" "devops_assessment_ecs_service" {
+   task_definition = aws_ecs_task_definition.devops_assessment_etd.id
+   cluster = aws_ecs_cluster.devops_assessment_cluster.id
+   launch_type = "FARGATE"
+   name = "devopsAssessmentEcsService"
+   desired_count   = 1
+   network_configuration {
+    subnets         = aws_subnet.devops_assessment_subnet[*].id
+    security_groups = [
+        aws_security_group.sg.id
+    ]
+    assign_public_ip = true
+   }
+}