NickMRamirez / gitlab_presentation

Demo of using Packer, Terraform, .NET Core, Docker and Kubernetes.

Gitlab Presentation

Demo of using Packer, Terraform, .NET Core, Docker and Kubernetes.

Goals:

• Use Terraform to set up a Kubernetes cluster on Azure Container service
• Use Packer to set up a custom AWS AMI that has Docker installed
• Use Terraform to set up Gitlab in AWS
• Build a .NET Core website
• Build a Docker image from the .NET Core website
• Deploy the Docker image to the Kubernetes cluster

Step 1: Kubernetes in Azure Container Service

1. Create your Azure credentials, following these directions: https://www.terraform.io/docs/providers/azurerm/authenticating_via_service_principal.html.

2. Set up the required Terraform variables by going into the src/aksk8s folder and adding a file called terraform.tfvars. It should have these variables in it:

subscription_id                 = "YOUR_AWS_SUBSCRIPTION"
service_principal_client_id     = "YOUR_AWS_CLIENT_ID"
service_principal_client_secret = "YOUR_AWS_CLIENT_SECRET"
tenant_id                       = "YOUR_AWS_TENANT_ID"

3. Create the k8s cluster:

cd src/aksk8s
terraform init
terraform plan
terraform apply

4. (Optional) Log in with:

ssh -i ../example_ssh_keypairs/ssh_private_key.pem [e-mail]

Step 2: Build Packer image

1. Add the required variables to src/packer_aws_ubuntu_docker/variables.json:

{
  "aws_access_key": "YOUR_AWS_ACCESS_KEY",
  "aws_secret_key": "YOUR_AWS_SECRET_KEY"
}

2. Build the image:

cd src/packer_aws_ubuntu_docker
packer build -var-file variables.json ubuntu_docker.json

Step 3: Gitlab in AWS

1. Import the SSH public key into AWS.

Bash

pub_key=$(cat ../example_ssh_keypairs/ssh_public_key.pem)
aws configure
aws ec2 import-key-pair --key-name gitlab-example --public-key-material "$pub_key"

2. Create AWS access key and secret key following these directions: http://docs.aws.amazon.com/IAM/latest/UserGuide/id_credentials_access-keys.html#Using_CreateAccessKey

3. Set up the required Terraform variables by going into the src/aws_gitlab folder and adding a file called terraform.tfvars. It should have these variables in it:

access_key                         = "YOUR_AWS_ACCESS_KEY"
secret_key                         = "YOUR_AWS_SECRET_KEY"
region                             = "us-east-2"
ssh_keypair_name                   = "YOUR_KEYPAIR_NAME"
ami_name                           = "YOUR_AMI_NAME"
ami_owner                          = "YOUR_AMI_OWNER"
az_service_principal_client_id     = "YOUR_AZURE_CLIENT_ID"
az_service_principal_client_secret = "YOUR_AZURE_CLIENT_SECRET"
az_tenant_id                       = "YOUR_AZURE_TENANT_ID"

4. Create the VM:

cd src/aws_gitlab
terraform init
terraform plan
terraform apply

5. (Optional) Log in with:

ssh -i ../example_ssh_keypairs/ssh_private_key.pem ubuntu@[AWS_PUBLIC_IP]