100-Days-Of-DevOps-Challenge-KodeKloud

Troubleshoot and Create Ansible Playbook

An Ansible playbook needs completion on the jump host, where a team member left off. Below are the details:

The inventory file /home/thor/ansible/inventory requires adjustments. The playbook must run on App Server 2 in Stratos DC. Update the inventory accordingly.
Create a playbook /home/thor/ansible/playbook.yml. Include a task to create an empty file /tmp/file.txt on App Server 2.

Note: Validation will run the playbook using the command ansible-playbook -i inventory playbook.yml. Ensure the playbook works without any additional arguments.

Steps

Move into ansible directory:
```
 cd ansible
 ls
```

Fix the inventory file:

 stapp02 ansible_host=172.238.16.204 ansible_user=steve ansible_ssh_common_args='-o StrictHostKeyChecking=no'

The host is not the correct one for app server 2. replace host ip with hostname of app server 2: stapp02 and add ansible_ssh_password

 stapp02 ansible_host=stapp02 ansible_user=steve ansible_ssh_password=Am3ric@ ansible_ssh_common_args='-o StrictHostKeyChecking=no'

Create a playbook.yml file and copy-paste contents from this playbook file

Run the playbook command:

 ansible-playbook -i inventory playbook.yml

Good to Know?

Ansible Troubleshooting

Connection Issues: Verify SSH connectivity and credentials
Inventory Problems: Check host definitions and variables
Module Errors: Validate module syntax and parameters
Permission Issues: Ensure proper sudo/root access

Common Issues

Host Unreachable: Network connectivity problems
Authentication Failed: Wrong credentials or SSH keys
Module Not Found: Missing Ansible modules
Syntax Errors: YAML formatting issues

Debugging Techniques

Verbose Mode: Use -v, -vv, -vvv for detailed output
Check Mode: Use --check for dry-run execution
Limit Hosts: Use --limit to target specific hosts
Step Mode: Use --step for interactive execution

File Operations

file Module: Create, modify, delete files and directories
copy Module: Copy files from control node to managed nodes
template Module: Process Jinja2 templates
lineinfile Module: Modify specific lines in files

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