Gitlab_NAP_Arkadia_AWS_ASG

That Pipeline is the first of a group of 3 pipelines:

1) Gitlab_NAP_Arkadia_AWS_ASG
2) Gitlab_Setup_NAP_and_F5CS_DNSLB
3) Remove_instance_f5cs_dns_lb

All the pipelines use mainly Ansible, and the AWS API for some actions (for simplicity).

RESUME of the workflow:

Gitlab_NAP_Arkadia_AWS_ASG:
That pipeline deploys a full AWS VPC with all the needed resources.
NAP instances are deployed through an Auto Scale Group.
Arkadia instances are also deployed via an Auto Scale Group.

Gitlab_Setup_NAP_and_F5CS_DNSLB:
That second pipeline is automatically triggered When a NAP instance starts.
That pipeline setups the NAP with the required nginx config files (nginx.conf, nap policy, etc).
During the setup of a NAP instance, NGINX-ASG is configured to auto discover the Arkadia instances.
Finally, the pipeline creates or updates a DNS LB F5 CS with the public IP address of the new NAP instance.

-> See the README of Gitlab_Setup_NAP_and_F5CS_DNSLB for more details.

Remove_instance_f5cs_dns_lb:
When a NAP instance stops, that third pipeline is automatically triggered.
That pipeline updates the DNS LB Service for removing the public IP addess of the NAP instance which has been stopped.

-> See the README of remove_instance_f5cs_dns_lb for more details.

Pre-Requirements:

. AWS account with an access key id and a secret access key.
. Gitlab Server into AWS with at least 1 Gitlab Runner.
. Any AWS Region can be used for the Gilab Server and Runners.

Deploy a complete infrastructure into AWS with:

. 1 VPC with a route table and an internet gateway
. 2 AZ
. 2 Subnets for NAPs (1 subnet in each AZ)
. 2 Subnets for Web Servers (1 Subnet in each AZ)
. 1 Auto Scale Group for NAPs
. 1 Auto Scale Group for Web Servers
. 1 Security Group for NAPs
. 1 Security Group for Web Servers
. 1 Role and policy (required for NGINX ASG  

Variables are:

. var_key_pair                      # Name of the AWS key pair you want to bind to the instances
. var_region                        # AWS region where you want to deploy the infra
. var_id                            # Will be used to create specific name for the objects and instances
. var_ip_admin:                     # IP Address of the admin host
. var_nb_NAP                        # Number of NAP instances to start with into the AWS Auto Scale Group
. var_nb_Arkadia                    # Number of Arkadia instances to start wirth into the AWS Auto Scale Group