Ansible Docker: Complete Guide to Container Automation (2026)
By Luca Berton · Published 2026-04-03 · Category: installation
Complete guide to automating Docker with Ansible. Manage containers, images, networks, volumes, and docker-compose with community.docker collection.
Ansible's community.docker collection provides modules to manage Docker containers, images, networks, and Docker Compose deployments — all from your playbooks.
Prerequisites
Manage Containers
Start a container
Container with environment variables
Stop and remove containers
Manage Images
Docker Networks
Docker Volumes
Docker Compose
Generate docker-compose.yml with Ansible
Install Docker with Ansible
Container Health Checks
FAQ
Can I manage remote Docker hosts?
Yes. Set docker_host: "tcp://remote:2376" or use DOCKER_HOST environment variable. For TLS, configure tls, tls_verify, and certificate paths.
How do I update a running container?
Pull the new image, then recreate: set recreate: true or image: myapp:{{ new_version }}. The module handles stop → remove → start.
Docker Compose v1 vs v2 in Ansible?
Use community.docker.docker_compose_v2 for Docker Compose v2 (plugin). The older docker_compose module targets Compose v1 (standalone binary, deprecated).
Install Docker with Ansible
Run Containers
Docker Compose
Manage Images
Networks
Volumes
Full Stack Example
Key Modules
| Module | Purpose | |--------|---------| | docker_container | Run/manage containers | | docker_image | Pull/build images | | docker_compose_v2 | Docker Compose | | docker_network | Networks | | docker_volume | Volumes | | docker_prune | Cleanup | | docker_login | Registry auth |
FAQ
Do I need Python Docker SDK?
Yes — install python3-docker on managed hosts. Or: pip install docker
How do I update a running container?
Set pull: true and recreate: true (or use comparisons for smart recreation):
Ansible vs Docker Compose directly?
Ansible adds inventory management, secrets (Vault), multi-host orchestration, and integration with non-Docker infrastructure. Use Ansible when Docker is part of a larger automation workflow.
Install Collection
Run a Container
Container with Environment Variables
Docker Compose
Manage Images
Manage Networks
Manage Volumes
Container Health Check
Full Stack Example
Cleanup
FAQ
docker_container vs docker_compose?
docker_container manages individual containers. docker_compose_v2 manages multi-container stacks from docker-compose.yml. Use compose for complex stacks.
Do I need Docker installed first?
Yes — install Docker on the target host first. Use geerlingguy.docker role or install manually.
How to handle secrets?
Use Ansible Vault for environment variables. Never put secrets in Dockerfiles or images.
Install Collection
Run a Container
Container with Volumes
Pull Image
Build Image
Docker Network
Docker Volume
Docker Compose
Cleanup
Full Stack Deployment
FAQ
community.docker vs docker module?
community.docker is the current maintained collection. The old docker_container short name resolves to it via ansible.legacy.
How to install Docker itself?
Use geerlingguy.docker role: ansible-galaxy install geerlingguy.docker.
Docker vs Podman?
Use containers.podman collection for Podman. API is similar but modules differ.
Related Articles • Ansible Galaxy Guide • Ansible Environment Variables Guide • Ansible Handlers Guide • Ansible Vault Guide • Ansible Become Guide
Category: installation