Rewrote README

README.md

@@ -1,22 +1,85 @@
-# Infrastructure
-Master Node runs on Plex VM
+# Proxmox Docker Update
 
-# Example Commands
-`ansible VMs -m ping`
-This runs the ping module on all hosts in the VMs group
+Ansible playbooks for managing Docker containers across Proxmox VMs and LXCs, with Jenkins CI/CD integration.
 
-`ansible vpn -m ping`
-Runs the ping module on the host named vpn
+## Overview
 
-`ansible vpn -m ansible.builtin.copy -a "src=/home/jerick/plex/docker-compose.yml dest=/home/jerick/"`
-Copied the Plex docker-compose file from plex to vpn
+This project automates Docker container updates and maintenance using:
+- **Proxmox dynamic inventory** - automatically discovers running VMs/LXCs tagged with `docker`
+- **Ansible playbooks** - manages Docker Compose stacks and cleanup
+- **Jenkins pipeline** - provides a UI for running playbooks with parameters
 
-`ansible-playbook update.yaml -kK`
-Runs the update.yml playbook
+## Requirements
 
-/etc/ansible for app directory
+- Ansible with `community.docker` and `community.proxmox` collections
+- Proxmox API token with inventory read access
+- Jenkins (for CI/CD pipeline)
+- Docker hosts must be tagged with `docker` in Proxmox
 
+## Playbooks
 
-#update.yaml
-ansible-playbook -i inventories/inventory.linux.proxmox.yml update.yaml -kK
-this will update all runningVMs and LXCs with the linux tag
+| Playbook | Description |
+|----------|-------------|
+| `dockerUpdate.yml` | Pulls latest images and recreates containers for all Docker Compose stacks |
+| `dockerPrune.yaml` | Removes unused containers, images, networks, volumes, and build cache |
+
+## Usage
+
+### Via Jenkins
+
+The Jenkins pipeline provides a parameterized build with:
+
+| Parameter | Description |
+|-----------|-------------|
+| `PLAYBOOK` | Select which playbook to run |
+| `LIMIT` | Optionally limit to specific hosts (e.g., `plex`, `media-app`) |
+| `DRY_RUN` | Run in check mode without making changes |
+
+The pipeline automatically targets hosts with the `docker` tag. When a limit is provided, it uses an intersection pattern (`docker:&<limit>`) to ensure only docker-tagged hosts matching the limit are affected.
+
+### Via Command Line
+
+```bash
+# Update all docker hosts
+ansible-playbook -i inventories/inventory.proxmox.yml playbooks/dockerUpdate.yml --limit docker
+
+# Update a specific host
+ansible-playbook -i inventories/inventory.proxmox.yml playbooks/dockerUpdate.yml --limit docker:&plex
+
+# Prune all docker hosts (dry run)
+ansible-playbook -i inventories/inventory.proxmox.yml playbooks/dockerPrune.yaml --limit docker --check --diff
+```
+
+## Inventory
+
+The dynamic inventory (`inventories/inventory.proxmox.yml`) automatically groups hosts by Proxmox tags:
+
+| Group | Tag | Description |
+|-------|-----|-------------|
+| `docker_hosts` | `docker` | Hosts running Docker |
+| `vms` | - | All QEMU virtual machines |
+| `lxcs` | - | All LXC containers |
+
+Hosts are resolved as `<hostname>.lan` and use the `jenkins` user for SSH.
+
+## Environment Variables
+
+Required for Proxmox API access:
+
+```bash
+export PROXMOX_TOKEN_SECRET=<your-token-secret>
+```
+
+In Jenkins, this is configured via the `PROXMOX_TOKEN_SECRET` credential.
+
+## Project Structure
+
+```
+.
+├── Jenkinsfile                          # CI/CD pipeline
+├── inventories/
+│   └── inventory.proxmox.yml            # Proxmox dynamic inventory
+└── playbooks/
+    ├── dockerUpdate.yml                 # Container update playbook
+    └── dockerPrune.yaml                 # Cleanup playbook
+```