AWS AutoScaling CodeDeploy Spring Boot

Prepare

$ brew install awscli packer terraform
$ aws configure # setup your own (region: ap-northeast-1)

Usage

Initialize

• Create Deployment S3 Bucket by manually
  • e.g. aws s3 mb s3://sampledeploy
  • this s3 bucket is used for CodeDeploy or LaunchConfiguration for EC2 Instance (put/pull zip file)
• Create AMI with Packer
• Run Terraform
• Deploy Java Application
  • Continuous Deploy, just do deploy.sh

Components

• packer
• terraform
• javaapp

Packer

Create AMI

• require AWS_ACCESS_KEY & AWS_SECRET_KEY
  • who has credentials
• this AMI includes followings
  • CodeDeploy agent
  • user-data.sh which run when instance is up

$ cd packer
$ packer build sampleapp.json

terraform

aws provisioner for ap-northeast-1. this requires AMI which is build by above Packer. (ami_id is automatically selected with aws api)

$ cd terraform
$ terraform init

example settings (this settings is for terraform managed state)

$ terraform init
The name of the S3 bucket
  Enter a value: terraformsample
The path to the state file inside the bucket
  Enter a value: sampleapp
The region of the S3 bucket.
  Enter a value: ap-northeast-1

$ terraform plan
$ terraform apply

• start point is terraform/module_sample.tf.
  • ami_id is fetched by data resource (see terraform/modules/sample/data.f)

ssh into instance

If you want to ssh instances, apply following diff. (bastion server is not ready)

diff --git a/terraform/modules/sample/aws_launch_configuration.tf b/terraform/modules/sample/aws_launch_configuration.tf
index b6720ea..6146565 100644
--- a/terraform/modules/sample/aws_launch_configuration.tf
+++ b/terraform/modules/sample/aws_launch_configuration.tf
@@ -7,4 +7,5 @@ resource "aws_launch_configuration" "sample" {
name                        = "sample"
security_groups             = ["${aws_security_group.sample_web.id}"]
user_data                   = "${var.aws_launch_configuration_sample_user_data}"
+  key_name                    = "YOUR_KEYPAIR_KEY_NAME"
}

Java Application

• javaapp/deploy/appspec.yml
  • CodeDeploy scripts
  • this is used for continuous deployment

Local Run

$ cd javaapp
$ ./gradlew clean bootRun

• endpoints

$ curl localhost:8080 # 200 OK
$ curl localhost:8080/check/status # 200 OK
$ curl -XPOST localhost:8080/check/off # 200 OK
$ curl localhost:8080/check/status # 503 SERVICE UNAVAILABLE

Deploy

• deploy.sh
  • create executable jar
  • aws deploy
    • zip following files (deploy directory)
      • executable jar
      • application initialize script
      • appspec.yml (for CodeDeploy)
    • upload zip into s3
  • run create-deployment

generally this script is executed by jenkins or somewhere