Ansible Getting started (Transcript version 01)

PRE-REQUISITS

1) 4 VMS RUNNING ON AS BASE MACHINE WITH MINIMUM CONFIGURATION AS BELOW,

- 512MB RAM (MIN)

- 20GB OS DISK (THIN PROVISIONED)

- OS – “CENTOS” WITH INTERNET BASED REPOSITORY USAGE OR “REDHAT” WITH INHOUSE REPOSITORY SERVER USAGE) 

- VALID CONNECTION TO OS REPOSITORIES FOR ALL 4 VMS

- VMS SHOULD BE IN SAME NETWORK OR REACHABLE TO EACH OTHER 

2) VIRTUAL BOX ON END STUDENTS LAPTOP IS ALSO PREFERABLE IF ITS MINIMUM 8GB WITH ALL ABOVER POINTS WITH CENTOS AS OS OPTION ONLY

INTRODUCTION

ORIENTATION TO THE TRAINING ENVIRONMENT AND FLOW

SECTION 1 - INTRODUCING ANSIBLE (DAY 01)

WHY ANSIBLE?

- INFRASTRUCTURE AUTOMATION NEEDS

- CONFIGURATION MANAGEMENT NEEDS

ANSIBLE CONCEPTS AND ARCHITECTURE

- CLIENT SERVER ARCHITECTURE (SSH AGENT ONLY)

INDUSTRY EXAMPLES OF ANSIBLE USAGE

- DISCUSS WELL DOCUMENTED EXAMPLES

INSTALLING ANSIBLE

SECTION 2 – GETTING STARTED WITH ANSIBLE (DAY 01)

ANSIBLE INVENTORY

- VARIOUS COMPONENTS OF INVENTORY

- OVERRIDING INVENTORY 

- DYNAMIC INVENTORY

ANSIBLE CONFIGURATION FILES

- VARIOUS CONFIGURATION OPTIONS

- OVERRIDING CONFIGURATION OPTIONS

ANSIBLE AD HOC COMMANDS

- COMMANDS USED 

CONFIGURING CONNECTIONS IN AD HOC COMMANDS

- COMMANDS USED

MANAGING DYNAMIC INVENTORIES

- NEED OF DYNAMIC INVENTORIES

- EXAMPLES USING AD HOC COMMANDS

PERFORMING TASKS WITH MODULES IN AD HOC COMMANDS

- EXAMPLES

SECTION 3 - IMPLEMENTING PLAYBOOKS (DAY 02)

GETTING STARTED WITH PLAYBOOKS

- SAMPLE AD HOC COMMANS

- WRITING EQUIVALENT PLAYBOOK

- UNDERSTANDING PLAYBOOK STRUCTURE (YAML FORMAT)

- EXECUTING PLAYBOOK (SYNTAX VERIFICATION/DEBUG/DRY RUN)

ATTRIBUTES IN PLAYBOOK

USING ANSIBLE DOCUMENTATION

UNDERSTANDING YAML IN DETAIL

BEST PRACTICES FOR WRITING YOUR PLAYBOOKS

SECTION 4 – VARIABLES IN PLAYBOOKS (DAY 03)

NAMING CONVENTIONS VARIABLES

TYPE OF VARIABLES

- SYSTEM VARIABLES (FACTS)

- HOST VARIABLES

- HOSTGROUP VARIABLES

- REGISTERED VARIABLES

- DYNAMIC VARIABLES

- INCLUDED VARIABLES

- CUSTOM VARIABLES 

WORKING WITH FACTS

- WHEN TO USE FACTS 

- FACTS FILTERS

SECTION 5 – ANSIBLE CONTROL MECHANISMS (DAY 04) 

TASKS IN LOOPS

TASKS WITH CONDITION/S

HANDLERS (TRIGGERS)

TAGS (LABEL)

WORKING WITH ERRORS

SECTION 6 - JINJA (DAY 04)

JINJA TEMPLATES

KNOWN ISSUES

SECTION 7 – ANSIBLE ROLES (DAY 05)

WHY ROLES NEEDED ?

STRUCTURE OF A ROLE

ROLE DEPENDENCIES

TYPE OF ROLES ANSIBLE GALAXY

- CUSTOM ROLES (NEW)

- ROLES FROM ANSIBLE GALAXY 

SECTION 8 -  ANSIBLE VAULT (DAY 05)

WHY VAULT NEEDED ?

COMMANDS USED  

USING VAULT WITH AD HOC COMMANDS

USING VAULT WITH PLAYBOOKS

SECTION 9 – BEST PRACTICES (DAY 05)

DELEGATION

PARALLELISM

USGIN POWER PREVILEGE

INVENTORY FILE PLACEMENT

PASSWORD AND KEYS

TROUBLESHOOTING

ANNEXURE 01 – FREQUENTLY USED MODULES

PING

SHELL

FILE

COPY

YUM

SERVICE

USER

PARTED

FILESYSTEM

MOUNT

STAT

TEMPLATE

WAIT_FOR

FIREWALLD

UNARCHIVE

SETUP 

FAIL

HAPROXY

AWS_S3

EC2

EC2_AMI

AZURE

VMWARE

ANNEXURE 02 - REFERENCES 

REFERENCE LINKS