An ansible playbook to configure docker,start docker services and launching a webserver on the top of docker.

3 min readJun 17, 2021

Task 10.

Task description-

🔰Write an Ansible PlayBook that does the
following operations in the managed nodes:
🔹 Configure Docker
🔹 Start and enable Docker services
🔹 Pull the httpd server image from the Docker Hub
🔹 Run the docker container and expose it to the public
🔹 Copy the html code in /var/www/html directory
and start the web server

Note- Ansible should be installed on your system, and the nodes where this docker is to be configured should have internet connectivity.

Create the Docker Repository

To install docker, first we need to configure yum.

Install Docker

You can install Docker using “command” module or “package” module.
“Command” module directly runs the given command in hosts.
“Package” module will automatically

Install Python SDK then Docker SDK

To handle docker containers from ansible, Docker SDK is needed to be installed in managed nodes.
To install Docker SDK using pip module, first you need to install Python on hosts.
Install python using “package” module.
Then install docker SDK using “pip” module.

Start and Enable Docker

Start and enable the Docker using “service” module.

Pulling httpd image from Docker Hub

Pull “httpd” image from docker hub using “docker_image” module.

Launching Docker Container with httpd image and Exposing it

For launching container, use “docker_container” module
For “volumes” option, first we need to create the folder in host using “file” module, then mount this folder within the container.
Use “exposed_ports” option, to expose the container.
Use “ports” option to publish exposed container port to Docker host (Host_Port:Conatiner_Port)

Copy webpages to /var/www/html directory in Conatiner

Copy the webpage to the folder that is mount within the conatiner.

Setting Firewall Rule

Disable the firewall in the hosts so that client can connect to the webserver.
For disabling firewalld, you can either use “service” module or “firewalld” module.