tftsr_ai/roles/docker

Role: docker

Purpose

Install Docker CE on target hosts that require container runtime.

Installation

Docker CE is installed via dnf using the official Docker CE repository. The role:

1. Adds the Docker CE dnf repository
2. Installs docker-ce, docker-ce-cli, containerd.io, and docker-compose-plugin
3. Enables and starts the docker service

Group Membership

The following users are added to the docker group:

• {{ ansible_user }} -- primary admin user (set via ansible_user in group_vars/all.yml)
• ollama -- Ollama service user

A logout/login is required for group membership changes to take effect in existing shell sessions.

Idempotency

• Skips installation if the docker binary is already present and the docker service is running
• Group membership is additive (does not remove existing groups)

Tags

ansible-playbook playbooks/site.yml --tags docker