Ansible and Docker : (An Automation UseCase)

Ansible playbook which Fetch IP of a new Container and dynamically update into the inventory with Configuring web-server inside new Docker Container

Problem Statement📄

We have to create an Ansible playbook that will retrieve IP of every new Container that is launched and update that IP in the Ansible inventory. So that we can host a Webserver inside that Container.

so Lets Begin

For this Problem statement I have used my own pre-created docker image which is enabled with ssh. So that Ansible can use ssh protocol to login to new docker container and configure webserver inside it.

In thiscase I am having Controller Node having IP 192.168.43.155 on which the ansible is installed

Lets check the ansible version installed on my controller node :

Initially inventory file is empty

Configuration file of ansible :

Ansible Playbook :

dockerip.txt file

task14.2-html file

Let’s run the main Playbook:

Inventory file dynamically updated

Checking whether Docker Service started and enabled:

Successfully Launched docker container with name myweb:

Now we can run our docker-web.yml playbook to configure webserver inside container:

Done! Now checking by Attaching to myweb container:

Now the webserver has been deployed on the docker container with the help of the Ansible Automation tool. So Let’s check our webpage from the browser :

Thank you for reading the article!!