122 lines
4.2 KiB
Markdown
122 lines
4.2 KiB
Markdown
Focusing on integrating Keycloak with Ansible for managing Identity and Access Management (IAM) simplifies the process and aligns with modern IAM practices. Keycloak is an open-source IAM solution providing single sign-on with Identity Brokering and Social Login, User Federation, Client Adapters, an Admin Console, and an Account Management Console.
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This guide assumes you have a basic understanding of IAM principles, Ansible, and Keycloak. We’ll cover setting up a Keycloak server using Ansible, configuring realms, clients, and users, and managing Keycloak configurations.
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### Environment Setup
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- **Control Machine:** A Linux-based system with Ansible installed. This machine executes Ansible playbooks against target servers.
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- **Target Server:** A Linux server (e.g., Ubuntu 20.04) designated to host Keycloak. Ensure it has Java (OpenJDK 11) installed, as Keycloak runs on the Java platform.
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### Step 1: Installing Ansible
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1. **On your control machine**, ensure you have Ansible installed. You can install Ansible using your distribution's package manager. For example, on Ubuntu:
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```bash
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sudo apt update
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sudo apt install ansible -y
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```
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2. **Verify the installation** by running `ansible --version`.
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### Step 2: Preparing Ansible Inventory
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1. Create an inventory file named `hosts` in your working directory, and add the target server under a group `[keycloak_servers]`:
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```ini
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[keycloak_servers]
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keycloak_server ansible_host=<TARGET_IP_ADDRESS> ansible_user=<SSH_USER>
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```
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2. Replace `<TARGET_IP_ADDRESS>` and `<SSH_USER>` with the target server's IP address and the SSH user, respectively.
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### Step 3: Keycloak Installation Playbook
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1. **Create a playbook** named `install_keycloak.yml`. This playbook will handle the installation of Keycloak on the target server.
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2. **Playbook content**:
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```yaml
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---
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- name: Install and Configure Keycloak
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hosts: keycloak_servers
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become: yes
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tasks:
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- name: Download Keycloak
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get_url:
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url: https://github.com/keycloak/keycloak/releases/download/15.0.2/keycloak-15.0.2.tar.gz
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dest: /tmp/keycloak.tar.gz
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- name: Extract Keycloak Archive
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unarchive:
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src: /tmp/keycloak.tar.gz
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dest: /opt/
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remote_src: yes
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- name: Rename Keycloak Directory
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command: mv /opt/keycloak-15.0.2 /opt/keycloak
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- name: Update Permissions
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file:
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path: /opt/keycloak
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owner: keycloak
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group: keycloak
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recurse: yes
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- name: Install Keycloak as a Service
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template:
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src: keycloak.service.j2
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dest: /etc/systemd/system/keycloak.service
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notify: Restart Keycloak
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- name: Start Keycloak Service
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systemd:
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name: keycloak
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state: started
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enabled: yes
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handlers:
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- name: Restart Keycloak
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systemd:
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name: keycloak
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state: restarted
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enabled: yes
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```
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3. **Create a systemd service template** for Keycloak (`keycloak.service.j2`) in your Ansible working directory:
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```ini
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[Unit]
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Description=Keycloak
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After=network.target
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[Service]
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User=keycloak
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PIDFile=/opt/keycloak/keycloak.pid
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ExecStart=/opt/keycloak/bin/standalone.sh -b 0.0.0.0
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SuccessExitStatus=143
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[Install]
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WantedBy=multi-user.target
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```
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4. **Run the playbook** to install Keycloak on the target server:
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```bash
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ansible-playbook -i hosts install_keycloak.yml
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```
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### Step 4: Configuring Keycloak with Ansible
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After installing Keycloak, you'll likely want to manage realms, clients, users, and roles. Ansible doesn’t have built-in modules for Keycloak administration as of my last update. However, you can use the `uri` module to interact with Keycloak’s REST API for management tasks.
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1. **Create roles, users, and clients** using Ansible tasks that make API calls to Keycloak. You’ll need to authenticate first to obtain an access token, then use that token for subsequent API requests.
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2. **API Authentication Example**:
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```yaml
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- name: Authenticate with Keycloak
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uri:
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url: "http://<KEYCLOAK_IP>:8080/auth/realms/master/protocol/openid-connect/token"
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method: POST
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body: "client_id=admin-cli&username |