DevOps Classroomnotes 14/Jun/2023

Ansible Dynamic inventory

• Ansible supports dynamic inventory.
• Dynamic inventory can be acheived by
  • plugins
  • scripts
• Refer Here for official docs
• Dynamic inventory in script form can be written in any language of your choice. The condition is this file has to be executable.
• Ansible dynamic inventory should return data in the below format

{
  "_meta": {
      "hostvars": {
          "instance-01": {
              "aws_ami_launch_index_ec2": 0,
              "aws_architecture_ec2": "x86_64",
              "ebs_optimized": false,
              "ec2_tag_Environment": "dev",
              "ec2_tag_Name": "instance-01",
              "ec2_tag_Tag1": "Test1",
              "ec2_tag_Tag2": "Test2",
              "ena_support": true,
              "enclave_options": {
                  "enabled": false
              }
          },
          "instance-02": {
            "ebs_optimized": false,
            "ec2_tag_Environment": "dev",
            "ec2_tag_Name": "instance-02",
            "ec2_tag_Tag1": "Test3",
            "ec2_tag_Tag2": "Test4",
            "ena_support": true,
            "enclave_options": {
                "enabled": false
            }
          }
      }
  },
  "all": {
        "children": [
            "aws_ec2",
            "ungrouped"
        ]
    },
    "aws_ec2": {
        "hosts": [
            "instance-01",
            "instance-02"
        ]
    }
}

Ansible in CI/CD Pipelines

• Two ways of using ansible in CI/CD
  • Directly from CI/CD
    
  • From Infra Provisioning
    

Ansible Vault