Launching docker container and updating their ip in inventory file with Ansible

🎯task description :

Launched docker container with Ansible and created an Ansible playbook that will retrieve new Container IP and update the inventory. So that further Configuration of Webserver could be done inside that Container.

This is the main ansible program

- hosts: localhost
vars_prompt:
- name: cont_name
    prompt: “enter container name”
    private: no
tasks:
- name: “Creating docker repository”
 yum_repository:
 name: Docker
 description: Docker Repo
 baseurl: https://download.docker.com/linux/centos/7/x86_64/stable
 gpgcheck: no
- name: “Downloading docker package”
 package:
 name: “docker-ce-18.09.1–3.el7.x86_64”
 state: present
- name: Starting the Docker services
 service:
 name: “docker”
 state: started
- name: Installing python3
 package:
 name: “python3”
 state: present
- name: Installing Docker SDK
 command: pip3 install docker
- name: stopping selinux
 selinux:
 policy: targeted
 state: permissive
- name: pulling docker image
 docker_image:
 name: “httpd”
 source: pull
- name: Launching a container
 docker_container:
 name: “{{ cont_name }}”
 image: “httpd”
 interactive: no
 detach: yes
 tty: no
- name: “retrieving IP of {{ cont_name }} container”
 docker_container_info:
 name: “{{ cont_name }}”
 register: dinfo
- debug:
 var: dinfo.container.NetworkSettings.IPAddress
- name: updating inventory with docker container ip
  template:
  src: ip.txt
  dest: /root/ip.txt

dinfo[‘container’][‘NetworkSetting’][‘IPAdress’] is the variable that contains the container IP

ip.txt is the ansible template file that will dynamically update inventory.

(ip.txt)
[docker]
{{ dinfo[‘container’][‘NetworkSettings’][‘IPAddress’] }} ansible_user=root ansible_ssh_pass=root ansible_connection=ssh

THANK YOU!!!