XPDays 2017 Building with Terraform code samples

The presentation could be found here

Sample1. Creating Ubuntu instance using one file

1. Init the Terrarorm
2. Starting our first instance
3. Terraform produce the state file terraform.tfstate

Sample2. Creating ubuntu instance using set of files

1. AMI selection moved to separate ami.tf
2. Instance settings parametized by terraform variables
3. Created variable files: terraform.tfvars, variables.tf
4. Example for list element selection in vpc_security_group_ids
5. Example for map element lookup in instance_type
6. Add metadata variable count

Sample3. Deploy a sample application, using RDS

1. Build custom image using packer. Build/redeploy workflow
2. Deploy a sample application using user_data
3. Create RDS MySQL database, pass db endpoint to application
4. Adding outputs

Sample4. Using funtions and count hints

1. Moving deployment script into temlplate provider
2. Using length() function to get size and create multiple resources
3. Add IAM profile for instance

Sample5. Scaling our applications, adding scaling policies

1. Creating launch configuration, autoscaling grops
2. Building module
3. Dealing with LoadBalancers and Certificates

AppendixA. Upgrading applications environment

1. Blue/Green deployment
2. Cannary upgrade