Overview of how Ansible module connects to Docker API

Ansible is a configuration management tool that allows automation of IT tasks, including managing Docker containers. To manage Docker containers through Ansible, it leverages the Docker Python library, which provides an API for interacting with Docker.

Ansible provides several modules for managing Docker containers, such as docker_container, docker_image, and docker_login. These modules utilize the Docker Python library to connect to the Docker daemon running on the target host.

To connect to the Docker daemon, Ansible uses the Docker API endpoint, which is typically unix:///var/run/docker.sock. Ansible also supports connecting to the Docker API over a TCP socket, which can be specified using the docker_host parameter.

Once the connection is established, Ansible can perform various tasks, such as creating and managing Docker containers, pulling and pushing Docker images, and managing Docker networks and volumes.

In summary, Ansible modules connect to the Docker API using the Docker Python library and the API endpoint, enabling automation of Docker container management tasks.

Ansible playbookhow to use the docker_container module to manage Docker containers

An example Ansible playbook that demonstrates how to use the docker_container module to manage Docker containers:

---

• name: Manage Docker containers with Ansible
  hosts: my_docker_host
  become: true tasks:
  • name: Start a container
    docker_container:
    name: my_container
    image: my_image
    state: started
    ports:
    • “80:80”
  • name: Stop a container
    docker_container:
    name: my_container
    state: stopped
  • name: Remove a container
    docker_container:
    name: my_container
    state: absent

In this playbook, we have three tasks that demonstrate how to use the docker_container module:

1. Start a container: This task uses the docker_container module to start a container with the name my_container and the image my_image. We also map port 80 on the host to port 80 in the container.
2. Stop a container: This task uses the docker_container module to stop the container named my_container.
3. Remove a container: This task uses the docker_container module to remove the container named my_container.

You can run this playbook using the ansible-playbook command:

Copy codeansible-playbook my_playbook.yml

Make sure to replace my_docker_host with the name or IP address of your Docker host, and my_image with the name of the Docker image you want to use.

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Ansible, Docker, Automation, DevOps, IT infrastructure, Containerization, API integration, Python programming, Scripting, Configuration management, IT operations, Continuous deployment, and Cloud computing,