add ansible lab files

4aa9f8b9 · Mohamad Bashar Desoki · 4aa9f8b9 · 4aa9f8b9 · 4aa9f8b9 · 4aa9f8b9
Commit 4aa9f8b9 authored Feb 25, 2025 by Mohamad Bashar Desoki
17 changed files
--- a/Readme.md
+++ b/Readme.md
+# Ansible open-source automation tool
+This project contains Ansible playbooks to automate infrastructure deployments and manage various services.
+## Table Of Contents
+- [Inventory](#inventory)
+- [Playbooks](#playbooks)
+- [Roles](#roles)
+- [Configurations](#configurations)
+- [How To Use](#how-to-use)
+## Inventory
+The `inventory.ini` file contains the list of hosts organized in 'webservers' and 'databases' groups.
+Ansible uses SSH to connect to these host machines with an Ansible user (such as 'ubuntu').
+```
+[webservers]
+192.168.0.10 ansible_user=ubuntu
+[databases]
+db-server01 ansible_user=ubuntu
+```
+## Playbooks
+Playbook files are the major entry points of an Ansible automation project and contain one or more plays. Our playbooks include:
+- `playbook.yml`: Updates all packages on the managed nodes before executing other tasks.
+- `install_nginx.yaml`: Installs and configures Nginx to serve webpages using a custom configuration template.
+## Roles
+Role directories contain sets of tasks, files, templates or modules that define the setup for certain services e.g., 'nginx'. They can also be reused in different playbooks thereby minimizing code duplication and improving organization:
+- `roles/system_info`: Gathers and displays system information such as RAM usage, disk space, CPU utilization, etc.
+- `roles/system_update`: Updates all packages on the node.
+## Configurations
+Configuration files include templates for services like Nginx (`nginx.conf.j2`) with placeholder variables for configuration customization during playbook execution.
+## How To Use
+To get started, you will need to have Ansible installed in your environment. Make updates or customizations to the `inventory.ini`, roles and configurations as needed for your specific use case.
+Follow these steps:
+- Clone this repository in your terminal to your desired location using the `git clone` command:
+```bash
+git clone https://git.hiast.edu.sy/mohamadbashar.disoki/ansible-open-source-automation-tool.git
+```
+- Modify inventory file (if necessary).
+- Run a playbook with 'ansible-playbook' command:
+```bash
+ansible-playbook -i inventories/inventory.ini path/to/your_playbook.yml
+```
+Note that for the security reasons, it is a common practice to keep sensitive data like host credentials outside of version control and use encrypted vaults for storing them. However, this project does not include encryption as the provided code doesn't mention using it.
\ No newline at end of file
--- a/ansible-roles-groups/inventory.ini
+++ b/ansible-roles-groups/inventory.ini
+[webservers]
+web1 ansible_host=192.168.159.130 ansible_user=ubuntu
+[databases]
+db1 ansible_host=192.168.159.141 ansible_user=ubuntu
--- a/ansible-roles-groups/playbook.yml
+++ b/ansible-roles-groups/playbook.yml
+---
+- name: Configure Web Servers
+  hosts: webservers
+  become: yes
+  roles:
+    - webserver
+- name: Configure Database Servers
+  hosts: databases
+  become: yes
+  roles:
+    - database
--- a/ansible-roles-groups/roles/database/tasks/main.yml
+++ b/ansible-roles-groups/roles/database/tasks/main.yml
+---
+- name: Install MySQL
+  apt:
+    name: mysql-server
+    state: present
+- name: Ensure MySQL is running
+  service:
+    name: mysql
+    state: started
--- a/ansible-roles-groups/roles/webserver/tasks/main.yml
+++ b/ansible-roles-groups/roles/webserver/tasks/main.yml
+---
+- name: Install Nginx
+  apt:
+    name: nginx
+    state: present
+- name: Deploy index.html
+  template:
+    src: index.html.j2
+    dest: /var/www/html/index.html
+- name: Ensure Nginx is running
+  service:
+    name: nginx
+    state: started
--- a/ansible-roles-groups/roles/webserver/templates/index.html.j2
+++ b/ansible-roles-groups/roles/webserver/templates/index.html.j2
+<!DOCTYPE html>
+<html lang="en">
+<head>
+    <meta charset="UTF-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    <title>Welcome to My Web Server</title>
+</head>
+<body>
+    <h1>welcome to my nginx sevrer</h1>
+</body>
+</html>
--- a/install-nginx/index.html
+++ b/install-nginx/index.html
+<!DOCTYPE html>
+<html lang="en">
+<head>
+    <meta charset="UTF-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    <title>Welcome to My Web Server</title>
+</head>
+<body>
+    <h1>Hello from ansible lab</h1>
+</body>
+</html>
--- a/install-nginx/install_nginx.yaml
+++ b/install-nginx/install_nginx.yaml
+---
+- name: Install Nginx
+  hosts: web_servers
+  become: yes
+  vars:
+    nginx_port: 8085
+  tasks:
+    - name: Ensure Nginx is installed
+      apt:
+        name: nginx
+        state: present
+    - name: Copy Nginx configuration
+      template:
+        src: nginx.conf.j2
+        dest: /etc/nginx/sites-available/default  
+    - name: Copy index.html to web root
+      copy:
+        src: index.html
+        dest: /var/www/html/index.html
+        owner: www-data
+        group: www-data
+        mode: '0644'
+    - name: Start Nginx service
+      service:
+        name: nginx
+        state: started  
--- a/install-nginx/nginx.conf.j2
+++ b/install-nginx/nginx.conf.j2
+server {
+    listen {{ nginx_port }};
+    server_name localhost;
+    location / {
+        root /var/www/html;
+        index index.html index.htm;
+    }
+}
--- a/install_postgres/inventory.ini
+++ b/install_postgres/inventory.ini
+# inventory.ini
+[db]
+db1 ansible_host=192.168.159.130 ansible_user=root 
+[all:vars]
+postgres_password="postgres" 
+db_name="ansible_db" 
+db_user="ansible" 
+db_user_password= "ansible"
--- a/install_postgres/playbook.yml
+++ b/install_postgres/playbook.yml
+- name: apply db role on db group
+  hosts: db
+  become: true
+  become_method: sudo
+  roles:
+    - db
--- a/install_postgres/roles/db/tasks/main.yml
+++ b/install_postgres/roles/db/tasks/main.yml
+- name: Install Python3 and pip (for Python 3)
+  apt:
+    name:
+      - python3
+      - python3-pip
+    state: present
+- name: Install psycopg2 (PostgreSQL adapter for Python)
+  pip:
+    name: psycopg2-binary
+    state: present
+- name: Install PostgreSQL
+  apt:
+    name: postgresql
+    state: present
+- name: Ensure PostgreSQL is running
+  service:
+    name: postgresql
+    state: started
+    enabled: yes
+- name: Set password for PostgreSQL user "postgres"
+  postgresql_user:
+    name: postgres
+    password: "{{ postgres_password }}"
+    state: present
+  become: yes
+  become_user: postgres
+- name: Create PostgreSQL database  
+  postgresql_db:
+    name: "{{ db_name }}"
+    state: present
+    login_user: postgres
+    login_password: "{{ postgres_password }}"
+  become: yes
+  become_user: postgres
+- name: Create PostgreSQL user
+  postgresql_user:
+    name: "{{ db_user }}"
+    password: "{{ db_user_password }}"
+    db: "{{ db_name }}"
+    priv: "ALL"
+    state: present
+    login_user: postgres
+    login_password: "{{ postgres_password }}"
+  become: yes
+  become_user: postgres
+- name: Create messages table
+  postgresql_query:
+    login_db: "{{ db_name }}"
+    login_user: postgres
+    login_password: "{{ postgres_password }}"
+    query: |
+      CREATE TABLE IF NOT EXISTS messages (
+        id INT PRIMARY KEY,
+        name VARCHAR(255) NOT NULL,
+        message VARCHAR(255) NOT NULL,
+        created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP
+      );
+  become: yes
+  become_user: postgres
+- name: Reload PostgreSQL
+  service:
+    name: postgresql
+    state: reloaded
+  become: yes
+- name: Grant all privileges on database to ansible user
+  postgresql_privs:
+    database: "{{ db_name }}"
+    roles: "{{ db_user }}"
+    privs: ALL
+    type: database
+    state: present
+  become: yes
+  become_user: postgres
+- name: Grant all privileges on messages table to ansible user
+  postgresql_privs:
+    database: "{{ db_name }}"
+    roles: "{{ db_user }}"
+    privs: ALL
+    type: table
+    objs: messages
+    state: present
+  become: yes
+  become_user: postgres
+#- name: Grant all privileges on messages_id_seq sequence to ansible user
+#  postgresql_privs:
+#    database: "{{ db_name }}"
+#    roles: "{{ db_user }}"
+#    privs: ALL
+#    type: sequence
+#    objs: messages_id_seq
+#    state: present
+#    login_user: postgres
+#    login_password: "{{ postgres_password }}"
+#  become: yes
+#  become_user: postgres
--- a/system-info/inventory.ini
+++ b/system-info/inventory.ini
+[servers]
+web1 ansible_host=192.168.159.130 ansible_user=ubuntu
+db1 ansible_host=192.168.159.141 ansible_user=ubuntu
--- a/system-info/playbook.yml
+++ b/system-info/playbook.yml
+---
+- name: Gather System Information
+  hosts: servers
+  become: yes
+  roles:
+    - system_info
+    - system_update
--- a/system-info/roles/system_info/tasks/main.yml
+++ b/system-info/roles/system_info/tasks/main.yml
+---
+- name: Gather RAM information
+  command: free -h
+  register: ram_info
+- name: Display RAM information
+  debug:
+    var: ram_info.stdout
+- name: Gather Disk usage information
+  command: df -h
+  register: disk_info
+- name: Display Disk usage information
+  debug:
+    var: disk_info.stdout
+- name: Gather CPU utilization
+  shell: top -bn1 | grep "Cpu(s)"
+  register: cpu_info
+- name: Display CPU utilization
+  debug:
+    var: cpu_info.stdout
--- a/system-info/roles/system_update/tasks/main.yml
+++ b/system-info/roles/system_update/tasks/main.yml
+---
+- name: Update all packages
+  ansible.builtin.apt:
+    update_cache: yes
+  when: ansible_os_family == "Debian"
+- name: Update all packages
+  yum:
+    name: '*'
+    state: latest
+  when: ansible_os_family == "RedHat"
--- a/update/playbook.yml
+++ b/update/playbook.yml
+---
+- name: Update all packages on Debian-based and Red Hat-based systems
+  hosts: all
+  become: yes 
+  tasks:
+    - name: Ping the host to check connectivity
+      ping:
+    - name: Update the package list on Debian-based systems
+      apt:
+        update_cache: yes
+      when: ansible_os_family == "Debian"
+    - name: Update all packages on Red Hat-based systems
+      yum:
+        name: '*'
+        state: latest
+      when: ansible_os_family == "RedHat"