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Phase 5 — Modules (Enterprise Level) - Coggle Diagram

- - - - Idempotent means running the same task multiple times does not make unnecessary changes.
    - - Changed
      - Failed
      - Success
      - Output
      - Error Messages
  - - - Reads Playbook
      - Reads Inventory
      - Selects Target Hosts
      - Connects through SSH
      - Copies Temporary Module
      - Executes Module
      - Collects Result
      - Deletes Temporary Files
      - Displays Output
  - - - ansible.builtin
    - - ansible.posix
      - community.general
      - community.docker
      - kubernetes.core
      - amazon.aws
- - - - Universal package manager.
      - Automatically chooses apt, dnf, yum, zypper, etc.
    - - Cross-platform playbooks.
    - - package
        
        name
        
        state
    - - present
      - absent
      - latest
    - - Install nginx
      - Remove nginx
      - Upgrade nginx
    - - Mixed Ubuntu and RHEL environments
      - Generic playbooks
  - - - Ubuntu
      - Debian
    - - apt
      - apt-get
    - - /var/lib/dpkg/
    - - /etc/apt/
    - - /var/cache/apt/
    - - name
      - state
      - update_cache
      - upgrade
      - autoremove
    - - present
      - absent
      - latest
    - - Update Repository Cache
      - Install Security Updates
      - Remove Old Packages
      - Clean Dependencies
    - - apt update
      - apt install nginx
      - apt remove nginx
      - apt autoremove
  - - - RHEL 7
      - CentOS 7
    - - /etc/yum.repos.d/
    - - /var/cache/yum/
    - - /etc/yum.conf
    - - name
      - state
      - update_cache
    - - Legacy Enterprise Servers
  - - - RHEL 8
      - RHEL 9
      - Rocky Linux
      - AlmaLinux
    - - /etc/dnf/
    - - /etc/yum.repos.d/
    - - /var/cache/dnf/
    - - name
      - state
      - update_cache
    - - Monthly Patching
      - Security Updates
      - Software Deployment
    - - dnf install
      - dnf update
      - dnf remove
- - - - Controls Linux services.
    - - System V
      - Upstart
      - systemd
    - - name
      - state
      - enabled
    - - started
      - stopped
      - restarted
      - reloaded
    - - Apache
      - SSH
      - MariaDB
      - NFS
      - Samba
  - - - Controls services managed by systemd.
    - - /etc/systemd/system/
      - /usr/lib/systemd/system/
    - - name
      - state
      - enabled
      - daemon_reload
      - masked
    - - Restart Services
      - Enable at Boot
      - Reload Unit Files
      - Mask Critical Services
    - - systemctl status
      - systemctl start
      - systemctl stop
      - systemctl restart
      - systemctl reload
      - systemctl enable
      - systemctl disable
      - systemctl daemon-reload
- - - - Manage files, directories, symbolic links and permissions.
    - - path
      - state
      - owner
      - group
      - mode
      - recurse
    - - file
      - directory
      - touch
      - absent
      - link
      - hard
    - - rwx
      - Numeric
        
        644
        
        755
        
        600
        
        700
    - - Create Directories
      - Delete Files
      - Set Ownership
      - Change Permissions
    - - chmod
      - chown
      - mkdir
      - rm
      - touch
      - ln
  - - - Copy files from Controller to Managed Node.
    - - Controller
    - - Remote Server
    - - src
      - dest
      - owner
      - group
      - mode
      - backup
      - force
    - - Configuration Files
      - Scripts
      - Certificates
      - SSH Keys
    - - project/files/
  - - - Copy dynamic files using Jinja2 variables.
    - - .j2
    - - project/templates/
    - - Managed Node
    - - src
      - dest
      - owner
      - group
      - mode
    - - hostvars
      - group_vars
      - host_vars
      - facts
    - - nginx.conf
      - httpd.conf
      - sshd_config
      - application.properties
  - - - Add
      - Modify
      - Replace
      - Remove one line
    - - path
      - regexp
      - line
      - insertafter
      - insertbefore
      - state
    - - SSH Configuration
      - Sysctl
      - Hosts File
      - Limits.conf
  - - - Insert multiple lines.
    - - path
      - block
      - marker
    - - Firewall Rules
      - SSH Blocks
      - Apache Configuration
      - Application Settings
- - - - Manage Linux users.
    - - /etc/passwd
      - /etc/shadow
      - /etc/group
    - - name
      - uid
      - shell
      - groups
      - append
      - password
      - home
      - state
    - - Create Users
      - Lock Users
      - Expire Accounts
      - Assign Groups
    - - useradd
      - usermod
      - userdel
      - passwd
      - chage
  - - - Manage Linux groups.
    - - /etc/group
    - - name
      - gid
      - state
    - - RBAC
      - Department Groups
      - Project Groups
    - - groupadd
      - groupmod
      - groupdel
- - - - Schedule recurring tasks.
    - - /etc/crontab
      - /etc/cron.d/
      - /var/spool/cron/
    - - minute
      - hour
      - day
      - month
      - weekday
      - job
    - - Backup
      - Log Cleanup
      - Monitoring
      - Patch Reports
    - - crontab -e
      - crontab -l
- - - - Restart Servers.
    - - reboot_timeout
      - test_command
      - pre_reboot_delay
      - post_reboot_delay
    - - Kernel Updates
      - Security Patches
  - - - Manage mounted file systems.
    - - /etc/fstab
    - - path
      - src
      - fstype
      - opts
      - state
    - - NFS
      - CIFS
      - SAN Storage
      - Cloud Storage
    - - mount
      - umount
      - findmnt
      - lsblk
      - df -h
- - - - Copy files from Managed Node to Controller.
    - - Remote → Controller
    - - Log Collection
      - Backup Configurations
      - Incident Response
  - - - Synchronize directories using rsync.
    - - rsync
    - - Controller ↔ Managed Node
      - Managed Node ↔ Managed Node
    - - Website Deployment
      - Configuration Backup
      - Disaster Recovery
    - - rsync
- - - - Execute Linux commands safely.
    - - No shell
      - No pipes
      - No variables
      - No redirects
    - - hostname
      - uptime
      - date
      - id
  - - - Execute shell commands.
    - - Pipes
      - Redirects
      - Variables
      - Wildcards
      - Command Substitution
    - - grep
      - awk
      - sed
      - find
      - Complex Bash Scripts
  - - - Copy local script and execute remotely.
    - - Bash
      - Python
      - Perl
    - - Legacy Automation
      - Migration Scripts
      - Health Checks
  - - - Execute commands without Python.
    - - Initial Server Bootstrap
      - Install Python
      - Rescue Systems
      - Minimal Linux Installations
    - - First-time Provisioning
      - Emergency Recovery
- - - - Send HTTP and HTTPS requests.
    - - GET
      - POST
      - PUT
      - DELETE
      - PATCH
    - - REST APIs
      - Jenkins
      - GitLab
      - AWX
      - Kubernetes
      - ServiceNow
  - - - Download files from HTTP HTTPS FTP.
    - - url
      - dest
      - checksum
      - mode
    - - Download Packages
      - Download ISO
      - Download Certificates
      - Download Application Binaries
    - - wget
      - curl
  - - - Extract compressed archives.
    - - tar
      - tar.gz
      - tgz
      - zip
      - bz2
      - xz
    - - src
      - dest
      - remote_src
    - - Software Installation
      - Application Deployment
      - Backup Restoration
    - - tar
      - unzip
      - gzip
      - bzip2