Add Ansible task files and fix .gitignore file.

.gitignore

+# General
+.DS_Store
+.AppleDouble
+.LSOverride
+
+# Icon must end with two \r
+Icon
+
+# Thumbnails
+._*
+
+# Files that might appear in the root of a volume
+.DocumentRevisions-V100
+.fseventsd
+.Spotlight-V100
+.TemporaryItems
+.Trashes
+.VolumeIcon.icns
+.com.apple.timemachine.donotpresent
+
+# Directories potentially created on remote AFP share
+.AppleDB
+.AppleDesktop
+Network Trash Folder
+Temporary Items
+.apdisk

Week3&4/ansible.cfg

+[defaults]
+inventory=host.ini
+private_key_file=~/.ssh/ansible

Week3&4/docker-deploy.yml

+---
+- name: Deploy Small Flask App with docker
+  hosts: all
+  become: yes
+
+  tasks:
+    - name: Copy source code file to remote host
+      copy:
+        src: files/small-flask-app
+        dest: /home/jay/app
+        
+    # - name: Build image  
+    #   docker_image:
+    #     build:
+    #       path: /home/jay/app/small-flask-app
+    #     name: small-flask-app
+    #     tag: v1
+    #     source: build
+
+    - name: Pull Docker image
+      docker_image:
+        name: garovu/small-flask-app
+        source: pull
+
+    - name: Run Docker container
+      docker_container:
+        name: small-flask-app
+        image: garovu/small-flask-app
+        ports:
+          - "5001:5000"
+        state: started
+    

Week3&4/docker-install.yml

+
+---
+- name: Install Docker and manage containers
+  hosts: all 
+  become: yes
+
+  tasks:
+    - name: Install required packages
+      apt:
+        name:
+          - apt-transport-https
+          - ca-certificates
+          - curl
+          - gnupg-agent
+          - software-properties-common
+        state: present
+      when: ansible_os_family == 'Debian'
+
+    - name: Add Docker GPG key
+      apt_key:
+        url: https://download.docker.com/linux/ubuntu/gpg
+      when: ansible_os_family == 'Debian'
+
+    - name: Add Docker repository
+      apt_repository: #use for arm64 chipset
+        repo: deb [arch=arm64] https://download.docker.com/linux/ubuntu jammy stable
+        state: present
+      when: ansible_os_family == 'Debian'
+
+    - name: Install Docker
+      apt:
+        name: 
+          - docker-ce
+          - docker-ce-cli
+          - containerd.io
+        state: present
+      when: ansible_os_family == 'Debian'
+

Week3&4/files/note01.txt

+### Hello this is a normal file.

Week3&4/files/small-flask-app/Dockerfile

+# syntax=docker/dockerfile:1.4
+FROM python:3.10-alpine
+
+WORKDIR /src
+COPY requirements.txt /src
+RUN pip3 install -r requirements.txt
+
+COPY . .
+
+CMD [ "python3", "-m" , "flask", "run", "--host=0.0.0.0"]
\ No newline at end of file

Week3&4/files/small-flask-app/app.py

+#!/usr/bin/env python
+import os
+
+from flask import Flask
+# from pymongo import MongoClient
+
+app = Flask(__name__)
+
+# client = MongoClient("mongo:27017")
+
+@app.route('/')
+def hello_world():
+    # try:
+    #     client.admin.command('ismaster')
+    # except:
+    #     return "Server not available"
+    return "Hello from the MongoDB client!\n"
+
+
+if __name__ == "__main__":
+    app.run(debug=True)
+

Week3&4/files/small-flask-app/requirements.txt

+pymongo
+flask

Week3&4/host.ini

+[ubuntu]
+192.168.67.9
+
+[ubuntu:vars]
+ansible_user=jay
+

Week3&4/playbook.yml

+---
+- hosts: all
+  become: yes
+
+  tasks:
+  - name: Install neofetch
+    apt:
+      name: neofetch
+      state: present
+

Week3&4/roles/first-roles/README.md

+Role Name
+=========
+
+A brief description of the role goes here.
+
+Requirements
+------------
+
+Any pre-requisites that may not be covered by Ansible itself or the role should be mentioned here. For instance, if the role uses the EC2 module, it may be a good idea to mention in this section that the boto package is required.
+
+Role Variables
+--------------
+
+A description of the settable variables for this role should go here, including any variables that are in defaults/main.yml, vars/main.yml, and any variables that can/should be set via parameters to the role. Any variables that are read from other roles and/or the global scope (ie. hostvars, group vars, etc.) should be mentioned here as well.
+
+Dependencies
+------------
+
+A list of other roles hosted on Galaxy should go here, plus any details in regards to parameters that may need to be set for other roles, or variables that are used from other roles.
+
+Example Playbook
+----------------
+
+Including an example of how to use your role (for instance, with variables passed in as parameters) is always nice for users too:
+
+    - hosts: servers
+      roles:
+         - { role: username.rolename, x: 42 }
+
+License
+-------
+
+BSD
+
+Author Information
+------------------
+
+An optional section for the role authors to include contact information, or a website (HTML is not allowed).

Week3&4/roles/first-roles/defaults/main.yml

+---
+# defaults file for first-roles

Week3&4/roles/first-roles/handlers/main.yml

+---
+# handlers file for first-roles

Week3&4/roles/first-roles/meta/main.yml

+galaxy_info:
+  author: your name
+  description: your role description
+  company: your company (optional)
+
+  # If the issue tracker for your role is not on github, uncomment the
+  # next line and provide a value
+  # issue_tracker_url: http://example.com/issue/tracker
+
+  # Choose a valid license ID from https://spdx.org - some suggested licenses:
+  # - BSD-3-Clause (default)
+  # - MIT
+  # - GPL-2.0-or-later
+  # - GPL-3.0-only
+  # - Apache-2.0
+  # - CC-BY-4.0
+  license: license (GPL-2.0-or-later, MIT, etc)
+
+  min_ansible_version: 2.1
+
+  # If this a Container Enabled role, provide the minimum Ansible Container version.
+  # min_ansible_container_version:
+
+  #
+  # Provide a list of supported platforms, and for each platform a list of versions.
+  # If you don't wish to enumerate all versions for a particular platform, use 'all'.
+  # To view available platforms and versions (or releases), visit:
+  # https://galaxy.ansible.com/api/v1/platforms/
+  #
+  # platforms:
+  # - name: Fedora
+  #   versions:
+  #   - all
+  #   - 25
+  # - name: SomePlatform
+  #   versions:
+  #   - all
+  #   - 1.0
+  #   - 7
+  #   - 99.99
+
+  galaxy_tags: []
+    # List tags for your role here, one per line. A tag is a keyword that describes
+    # and categorizes the role. Users find roles by searching for tags. Be sure to
+    # remove the '[]' above, if you add tags to this list.
+    #
+    # NOTE: A tag is limited to a single word comprised of alphanumeric characters.
+    #       Maximum 20 tags per role.
+
+dependencies: []
+  # List your role dependencies here, one per line. Be sure to remove the '[]' above,
+  # if you add dependencies to this list.

Week3&4/roles/first-roles/tasks/main.yml

+---
+# tasks file for first-roles

Week3&4/roles/first-roles/tests/inventory

+localhost
+

Week3&4/roles/first-roles/tests/test.yml

+---
+- hosts: localhost
+  remote_user: root
+  roles:
+    - first-roles

Week3&4/roles/first-roles/vars/main.yml

+---
+# vars file for first-roles

Week3&4/setup-ubuntu.yml

+---
+- name: Config Ubuntu Server
+  hosts: all
+  become: yes
+
+  tasks:
+
+  - name: Install firewall
+    apt:
+      name: ufw
+      state: present
+
+  - name: Start Firewall Service
+    service:
+      name: ufw
+      state: started
+      enabled: yes
+  
+  - name: Allow SSH via Firewall
+    ufw:
+      rule: allow
+      name: OpenSSH
+    
+  - name: Copy file from local to remote
+    copy:
+      src: files/note01.txt
+      dest: /home/jay
+      mode: 0644

Week3&4/ssh-playbook.yml

+
+---
+- name: Set up SSH for Ubuntu server
+  hosts: all 
+  become: yes
+
+  tasks:
+    - name: Generate SSH key
+      ansible.builtin.openssh_keypair:
+        path: /home/jay/.ssh/id_rsa
+        type: rsa
+        size: 2048