Nikolaeva Elizaveta SD-01 Lab12

.github/workflows/ci.yml

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+name: CI Pipeline
+
+on: [push, pull_request]
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v3
+
+      - name: Set up Python
+        uses: actions/setup-python@v4
+        with:
+          python-version: '3.10'
+
+      - name: Install dependencies
+        run: |
+          python -m pip install --upgrade pip
+          pip install -r app_python/requirements.txt
+
+      - name: Run linter (flake8)
+        run: |
+          pip install flake8
+          flake8 app_python --max-line-length=120
+
+      - name: Run tests
+        run: |
+          python -m unittest discover -s tests
+
+  docker:
+    needs: build
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v3
+
+      - name: Log in to Docker Hub
+        run: echo "${{ secrets.DOCKER_PASSWORD }}" | docker login -u "${{ secrets.DOCKER_USERNAME }}" --password-stdin
+
+      - name: Build Docker image
+        run: docker build -t nikolaevaelizaveta/my-flask-app:latest app_python/
+
+      - name: Push Docker image
+        run: docker push nikolaevaelizaveta/my-flask-app:latest

ansible/ANSIBLE.md

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+# Ansible related work
+
+During this stage of homework I fully followed task requirements about project's structure, files' names and the idea in general.
+
+Also to work with Ansible I had to install WSL, thus there were some errors related to the fact that all the previous steps were done on my Windows machine, including authorization in services and all te settings.
+
+Here are some commands I used.
+
+## Executing playbook to deploy the Docker role
+
+```bash
+liza@LAPTOP-T7RS5DP1:/mnt/c/Users/Elizoveta/Desktop/S25-core-course-labs/ansible$ ansible-playbook -i inventory/default_aws_ec2.yml playbooks/dev/main.yml
+
+[WARNING]: Ansible is being run in a world writable directory (/mnt/c/Users/Elizoveta/Desktop/S25-core-course-
+labs/ansible), ignoring it as an ansible.cfg source. For more information see
+https://docs.ansible.com/ansible/devel/reference_appendices/config.html#cfg-in-world-writable-dir
+
+PLAY [Docker VM] *******************************************************************************************************
+
+TASK [Gathering Facts] *************************************************************************************************
+fatal: [host_01]: UNREACHABLE! => {"changed": false, "msg": "Failed to connect to the host via ssh: no such identity: /home/liza/.ssh/id_ed25519_neww.pub: No such file or directory\r\[email protected]: Permission denied (publickey,password).", "unreachable": true}
+
+PLAY RECAP *************************************************************************************************************
+host_01                    : ok=0    changed=0    unreachable=1    failed=0    skipped=0    rescued=0    ignored=0
+```
+
+I could not manage to resolve this error because I followed lecture slides and lectures' ideas, so my guess is that there is some problem with transfering from Windows to WSL. When I tried to connect to VM from WSL I was asked for the password but I did not set any passwords. I tried to reset the password but it did not help: the command was performing for so long with no result.
+
+## Inventory Details
+
+```bash
+liza@LAPTOP-T7RS5DP1:/mnt/c/Users/Elizoveta/Desktop/S25-core-course-labs/ansible$ ansible-inventory -i inventory/default_aws_ec2.yml --list
+[WARNING]: Ansible is being run in a world writable directory (/mnt/c/Users/Elizoveta/Desktop/S25-core-course-
+labs/ansible), ignoring it as an ansible.cfg source. For more information see
+https://docs.ansible.com/ansible/devel/reference_appendices/config.html#cfg-in-world-writable-dir
+{
+    "_meta": {
+        "hostvars": {
+            "host_01": {
+                "ansible_host": "158.160.57.28",
+                "ansible_ssh_private_key_file": "~/.ssh/id_ed25519_neww.pub",
+                "ansible_user": "ubuntu"
+            }
+        }
+    },
+    "all": {
+        "children": [
+            "ungrouped",
+            "myhosts"
+        ]
+    },
+    "myhosts": {
+        "hosts": [
+            "host_01"
+        ]
+    }
+}
+
+liza@LAPTOP-T7RS5DP1:/mnt/c/Users/Elizoveta/Desktop/S25-core-course-labs/ansible$ ansible-inventory -i inventory/default_aws_ec2.yml --graph
+[WARNING]: Ansible is being run in a world writable directory (/mnt/c/Users/Elizoveta/Desktop/S25-core-course-
+labs/ansible), ignoring it as an ansible.cfg source. For more information see
+https://docs.ansible.com/ansible/devel/reference_appendices/config.html#cfg-in-world-writable-dir
+@all:
+  |--@ungrouped:
+  |--@myhosts:
+  |  |--host_01
+```
+
+# Lab 6 Logs of work on Web-App
+
+```bash
+PLAY [Docker VM] ******************************************************************************************************************************************************
+TASK [Gathering Facts] *****************************************************************************************************************************************************
+ok: [host_01]
+PLAY [Deploy web application] **********************************************************************************************************************************************
+TASK [Gathering Facts] *****************************************************************************************************************************************************
+ok: [host_01]
+TASK [web_app : Duplicate Docker configuration] ********************************************************************************************************************
+changed: [host_01]
+TASK [web_app : Docker compose installation] ************************************************************************************************************************
+ok: [host_01]
+TASK [web_app : Launch Docker compose] *************************************************************************************************************************************
+changed: [host_01]
+TASK [web_app : include_tasks] *********************************************************************************************************************************************
+skipping: [host_01]
+PLAY RECAP *****************************************************************************************************************************************************************
+host_01                    : ok=5    changed=2    unreachable=0    failed=0    skipped=1    rescued=0    ignored=0  
+```

ansible/ansible.cfg

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+[defaults]
+inventory = inventory
+playbook_dir = playbooks
+roles_path = roles

ansible/deployment_output.log

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+[WARNING]: Ansible is being run in a world writable directory
+(/mnt/c/Users/Elizoveta/Desktop/S25-core-course-labs/ansible), ignoring it as
+an ansible.cfg source. For more information see
+https://docs.ansible.com/ansible/devel/reference_appendices/config.html#cfg-in-
+world-writable-dir
+
+PLAY [Docker VM] ***************************************************************
+
+TASK [Gathering Facts] *********************************************************
+fatal: [host_01]: UNREACHABLE! => {"changed": false, "msg": "Failed to connect to the host via ssh: no such identity: /home/liza/.ssh/id_ed25519_neww.pub: No such file or directory\r\[email protected]: Permission denied (publickey,password).", "unreachable": true}
+
+PLAY RECAP *********************************************************************
+host_01                    : ok=0    changed=0    unreachable=1    failed=0    skipped=0    rescued=0    ignored=0   
+

ansible/inventory/default_aws_ec2.yml

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+all:
+  hosts:
+    host_01:
+      ansible_host: 158.160.57.28
+      ansible_user: ubuntu
+      ansible_ssh_private_key_file: ~/.ssh/id_ed25519_neww

ansible/playbooks/dev/main.yml

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+- name: Docker VM
+  hosts: all
+  become: true
+
+  roles:
+    - docker
+
+- name: Deploy web application
+  hosts: all
+  become: true
+  roles:
+    - web_app

ansible/roles/docker/README.md

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+   # Docker Role
+
+   This role installs and configures Docker and Docker Compose.
+
+   ## Requirements
+
+   - Ansible 2.9+
+   - Ubuntu 22.04
+
+   ## Role Variables
+
+   - `docker_version`: The version of Docker to install (default: `latest`).
+   - `docker_compose_version`: The version of Docker Compose to install (default: `1.29.2`).
+
+   ## Example Playbook
+
+   ```yaml
+   - hosts: all
+      roles:
+         - role: ansible/roles/docker
+

ansible/roles/docker/defaults/main.yml

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+docker_version: latest
+docker_compose_version: "1.29.2"

ansible/roles/docker/tasks/install_compose.yml

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+- name: Docker Compose
+  ansible.builtin.get_url:
+    url: "https://github.com/docker/compose/releases/download/{{ docker_compose_version }}/docker-compose-{{ ansible_system | lower }}-{{ ansible_architecture }}"
+    dest: /usr/local/bin/docker-compose
+    mode: 'a+x'
+
+- name: Check Docker Compose
+  ansible.builtin.command: docker-compose --version
+  register: compose_version
+  changed_when: false
+
+- name: Version od Docker Compose
+  ansible.builtin.debug:
+    msg: "Docker Compose version: {{ compose_version.stdout }}"

ansible/roles/docker/tasks/install_docker.yml

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+- name: Install packets
+  ansible.builtin.apt:
+    name:
+      - apt-transport-https
+      - ca-certificates
+      - curl
+      - gnupg-agent
+      - software-properties-common
+    state: present
+    update_cache: yes
+
+- name: Add key GPG Docker
+  ansible.builtin.apt_key:
+    url: https://download.docker.com/linux/ubuntu/gpg
+    state: present
+
+- name: Add repository of Docker
+  ansible.builtin.apt_repository:
+    repo: "deb [arch=amd64] https://download.docker.com/linux/ubuntu focal stable"
+    state: present
+
+- name: Install Docker CE
+  ansible.builtin.apt:
+    name: docker-ce
+    state: latest
+    update_cache: yes

ansible/roles/docker/tasks/main.yml

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+- import_tasks: install_docker.yml
+- import_tasks: install_compose.yml
+
+- name: Apt cache
+  apt:
+    update_cache: yes
+
+- name: Install packages
+  apt:
+    name:
+      - python3-pip
+      - apt-transport-https
+      - ca-certificates
+      - curl
+      - software-properties-common
+    state: present
+
+- name: Docker GPG keys
+  file:
+    path: /etc/apt/sources.list.d/docker.list
+    state: absent
+  ignore_errors: yes
+
+- name: Clear cache
+  apt:
+    autoclean: yes
+
+- name: Docker repository configuration
+  apt_repository:
+    repo: deb [arch=amd64] https://download.docker.com/linux/ubuntu focal stable
+    state: present
+    filename: docker
+  register: docker_repo
+
+- name: Install Docker
+  apt:
+    name: docker-ce
+    state: present
+  when: docker_repo.changed
+
+- name: Install Docker Compose
+  pip:
+    name: docker-compose
+    state: present
+
+- name: Add Docker GPG key
+  apt_key:
+    url: https://download.docker.com/linux/ubuntu/gpg
+    state: present
+
+- name: Add Docker repository
+  apt_repository:
+    repo: deb [arch=amd64] https://download.docker.com/linux/ubuntu focal stable
+    state: present
+
+- name: Auto-start Docker
+  ansible.builtin.systemd:
+    name: docker
+    enabled: yes
+    state: started
+
+- name: Add user to Docker
+  ansible.builtin.user:
+    name: "{{ ansible_user }}"
+    groups: docker
+    append: yes

ansible/roles/web_app/README.md

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+# Web app
+
+## Overview
+
+This role is designed to deploy a web application using a Docker image and Docker Compose.
+
+## Requirements
+
+- Ansible 2.9+
+- Ubuntu 22.04 or compatible Linux distributions
+- Docker and Docker Compose
+
+## Role Variables
+
+- `docker_image`: The name of the Docker image to deploy (e.g., `my-flask-app:latest`).
+- `app_port`: The port on which the application will be exposed (e.g., `8080`).
+- `web_app_full_wipe`: A boolean flag to enable a full wipe of the container and associated files. Defaults to `false`.
+
+## Usage
+
+The role in playbook:
+
+```yaml
+- hosts: all
+  become: true
+  roles:
+    - role: ansible/roles/docker
+    - role: ansible/roles/web_app
+```
+

ansible/roles/web_app/defaults/main.yml

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+docker_image: "my-flask-app:latest"
+
+app_port: 8080
+
+web_app_full_wipe: false

ansible/roles/web_app/meta/main.yml

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+dependencies:
+  - role: docker

ansible/roles/web_app/tasks/0-wipe.yml

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+- name: Stop and remove Docker container if any
+  docker_container:
+    name: web_app_container
+    state: absent
+  when: web_app_full_wipe
+  tags:
+    - wipe
+
+- name: Remove Docker Compose file
+  file:
+    path: /home/{{ ansible_user }}/docker-compose.yml
+    state: absent
+  when: web_app_full_wipe
+  tags:
+    - wipe