{"id":24374,"date":"2025-09-10T16:33:51","date_gmt":"2025-09-10T11:03:51","guid":{"rendered":"https:\/\/cloudsoftsol.com\/2026\/?p=24374"},"modified":"2025-09-10T16:33:55","modified_gmt":"2025-09-10T11:03:55","slug":"ansible-basics-core-concepts","status":"publish","type":"post","link":"https:\/\/cloudsoftsol.com\/2026\/ansible\/ansible-basics-core-concepts\/","title":{"rendered":"Ansible Basics &#038; Core Concepts"},"content":{"rendered":"\n<ol start=\"1\" class=\"wp-block-list\">\n<li>What is Ansible, and how does it differ from other configuration management tools (like Puppet, Chef, or SaltStack)?<\/li>\n\n\n\n<li>Explain the difference between <strong>Ad-hoc commands<\/strong> and <strong>Playbooks<\/strong> in Ansible.<\/li>\n\n\n\n<li>What are <strong>Inventory files<\/strong> in Ansible? How do you manage dynamic inventories?<\/li>\n\n\n\n<li>Can you explain the difference between <strong>static<\/strong> and <strong>dynamic inventory<\/strong>? Give examples of when you\u2019d use each.<\/li>\n\n\n\n<li>What is the difference between <strong>roles<\/strong> and <strong>playbooks<\/strong>?<\/li>\n\n\n\n<li>How does <strong>idempotency<\/strong> work in Ansible?<\/li>\n<\/ol>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<p><strong>\ud83d\udd39 Intermediate \u2013 Advanced Concepts<\/strong><\/p>\n\n\n\n<ol start=\"7\" class=\"wp-block-list\">\n<li>How do you handle <strong>secrets management<\/strong> in Ansible (Vault, HashiCorp Vault, AWS Secrets Manager)?<\/li>\n\n\n\n<li>Explain <strong>handlers<\/strong> in Ansible and when they are triggered.<\/li>\n\n\n\n<li>How do you use <strong>conditionals<\/strong> and <strong>loops<\/strong> in Ansible playbooks? Give examples.<\/li>\n\n\n\n<li>What are <strong>facts<\/strong> in Ansible? How do you use custom facts?<\/li>\n\n\n\n<li>How do you implement <strong>error handling<\/strong> in Ansible (ignore_errors, failed_when, rescue blocks)?<\/li>\n\n\n\n<li>What is the difference between <strong>delegate_to<\/strong>, <strong>local_action<\/strong>, and <strong>run_once<\/strong>?<\/li>\n<\/ol>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<p><strong>\ud83d\udd39 Real-world Scenarios<\/strong><\/p>\n\n\n\n<ol start=\"13\" class=\"wp-block-list\">\n<li>Suppose a task should run only if the previous one fails \u2014 how do you implement it?<\/li>\n\n\n\n<li>You need to deploy the same configuration across <strong>multiple environments (Dev, QA, Prod)<\/strong>. How do you design your playbooks and inventories?<\/li>\n\n\n\n<li>How would you ensure <strong>zero-downtime deployment<\/strong> using Ansible?<\/li>\n\n\n\n<li>How do you handle <strong>package version drift<\/strong> across multiple servers using Ansible?<\/li>\n\n\n\n<li>If you have 200+ servers, how would you <strong>optimize Ansible performance<\/strong>?<\/li>\n<\/ol>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<p><strong>\ud83d\udd39 Integration &amp; DevOps Practices<\/strong><\/p>\n\n\n\n<ol start=\"18\" class=\"wp-block-list\">\n<li>How do you integrate Ansible with <strong>Jenkins\/GitLab CI\/Azure DevOps<\/strong> pipelines?<\/li>\n\n\n\n<li>Have you used Ansible for <strong>cloud provisioning<\/strong> (AWS, Azure, GCP)? Can you give an example?<\/li>\n\n\n\n<li>How do you use Ansible with <strong>Docker and Kubernetes<\/strong>?<\/li>\n\n\n\n<li>How do you store and reuse Ansible playbooks across multiple projects?<\/li>\n<\/ol>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<p><strong>\ud83d\udd39 Troubleshooting &amp; Best Practices<\/strong><\/p>\n\n\n\n<ol start=\"22\" class=\"wp-block-list\">\n<li>If a playbook fails halfway, how do you <strong>resume execution from the failed task<\/strong>?<\/li>\n\n\n\n<li>How do you debug Ansible playbooks (-vvv, ansible-playbook &#8211;step, etc.)?<\/li>\n\n\n\n<li>What are some <strong>best practices<\/strong> you follow while writing playbooks?<\/li>\n\n\n\n<li>How do you test Ansible playbooks before applying them in production (Molecule, Ansible Lint, etc.)?<\/li>\n\n\n\n<li>Have you faced any <strong>Ansible pitfalls<\/strong> (e.g., large inventory execution, slow SSH connections)? How did you solve them?<\/li>\n<\/ol>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<p>\u2705 With <strong>4\u20135 years of experience<\/strong>, interviewers will often mix <strong>theory + hands-on scenarios<\/strong>. They may ask you to:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Write a small playbook on the spot.<\/li>\n\n\n\n<li>Debug a broken YAML snippet.<\/li>\n\n\n\n<li>Explain how you\u2019d structure Ansible for multi-environment deployments.<\/li>\n<\/ul>\n\n\n\n<p>Perfect \ud83d\udc4d Since you asked for <strong>more scenario-based Ansible interview questions<\/strong>, I\u2019ll focus on <strong>real-world problem-solving<\/strong> \u2014 the type of challenges DevOps engineers face in 4\u20135 years of experience.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<p><strong>\ud83d\udd39 Scenario-Based Ansible Interview Questions<\/strong><\/p>\n\n\n\n<p><strong>1. Multi-environment Setup<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>You need to configure <strong>Dev, QA, and Prod<\/strong> environments with slightly different variables.<br>How will you structure your <strong>inventories, group_vars, and playbooks<\/strong> to avoid duplication?<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<p><strong>2. Zero-Downtime Deployment<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>You\u2019re deploying a web application to 100 servers. The deployment must be <strong>rolling (one batch at a time)<\/strong> to avoid downtime.<br>\ud83d\udc49 How would you write the playbook? (Hint: use serial and max_fail_percentage.)<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<p><strong>3. Secrets &amp; Security<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>You need to store database credentials and API keys securely in Ansible.<br>\ud83d\udc49 Would you use <strong>Ansible Vault<\/strong>, environment variables, or an external secret manager (e.g., AWS Secrets Manager)? Why?<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<p><strong>4. Failover Handling<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>During deployment, one task fails on <strong>5% of servers<\/strong> due to a package conflict. The rest should continue normally.<br>\ud83d\udc49 How will you handle <strong>partial failures<\/strong> while still completing the playbook run?<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<p><strong>5. Performance Optimization<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Running a playbook on <strong>500+ servers<\/strong> is taking too long.<br>\ud83d\udc49 What would you do to improve speed? (e.g., forks, pipelining, ssh multiplexing, async + poll).<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<p><strong>6. Dynamic Inventory<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>You need to manage AWS EC2 instances that <strong>scale up and down dynamically<\/strong>.<br>\ud83d\udc49 How do you configure Ansible to always pick the latest hosts without manual editing of the inventory?<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<p><strong>7. Compliance &amp; Drift<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Your security team wants to ensure all servers have a specific version of <strong>OpenSSL<\/strong>.<br>\ud83d\udc49 How would you enforce and regularly check compliance using Ansible?<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<p><strong>8. CI\/CD Integration<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>You\u2019re using Jenkins\/GitLab CI to run Ansible playbooks after each code commit.<br>\ud83d\udc49 How do you ensure playbooks run only on <strong>affected servers<\/strong> and not the entire inventory?<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<p><strong>9. Handling Large Files<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>You need to distribute a <strong>1 GB WAR file<\/strong> to 200 servers.<br>\ud83d\udc49 How would you optimize this process with Ansible to avoid bottlenecks?<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<p><strong>10. Rolling Back<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Your Ansible deployment fails in production after updating a config file.<br>\ud83d\udc49 How do you <strong>rollback to the previous version<\/strong> using Ansible?<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<p><strong>11. Conditional Deployments<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>You want to install a package only if it\u2019s <strong>not already installed<\/strong> or update it only if a new version is available.<br>\ud83d\udc49 How would you write this playbook using when, register, and changed_when?<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<p><strong>12. Delegation<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>A playbook needs to <strong>fetch files from all servers<\/strong> and store them in a central log server.<br>\ud83d\udc49 How do you use <strong>delegate_to<\/strong> and <strong>run_once<\/strong>?<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<p><strong>13. Error Recovery<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>You want to <strong>retry failed tasks<\/strong> automatically with a wait time before re-execution.<br>\ud83d\udc49 How do you implement retries in Ansible?<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<p><strong>14. Blue-Green Deployment<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>You need to implement a <strong>blue-green deployment strategy<\/strong> using Ansible for a web app cluster.<br>\ud83d\udc49 How would you structure the inventory and playbooks to handle traffic switching?<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<p><strong>15. Ansible + Kubernetes<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>You\u2019re using Ansible to deploy apps into a Kubernetes cluster.<br>\ud83d\udc49 How would you handle <strong>kubectl configuration<\/strong>, secrets, and namespaces across multiple clusters?<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<p><strong>16. Troubleshooting<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>A playbook runs fine on <strong>Ubuntu servers<\/strong> but fails on <strong>RHEL servers<\/strong>.<br>\ud83d\udc49 How would you debug and fix such OS-specific issues?<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<p><strong>17. Parallel vs Sequential Execution<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Some tasks must run <strong>in parallel<\/strong> (like package installation), while others must run <strong>sequentially<\/strong> (like DB migrations).<br>\ud83d\udc49 How would you control execution order in Ansible?<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<p><strong>18. Compliance Reports<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Management wants a <strong>report of applied changes<\/strong> after each Ansible run.<br>\ud83d\udc49 How would you generate logs or reports from Ansible runs (callback plugins, JSON output, etc.)?<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<p><strong>19. Inventory Groups<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>You have a group of 50 servers, but a playbook should run only on <strong>10 randomly selected servers<\/strong> for testing.<br>\ud83d\udc49 How would you achieve this with Ansible?<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<p><strong>20. Migrating Legacy Systems<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>You need to migrate apps from <strong>CentOS 7 to Ubuntu 22.04<\/strong> using Ansible.<br>\ud83d\udc49 How do you handle <strong>OS-specific modules, package managers, and playbook structures<\/strong>?<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<p>\ud83d\udca1 Pro Tip: In interviews, when asked scenario-based questions, don\u2019t just say \u201cuse Ansible Vault\u201d or \u201cuse serial\u201d. Instead, explain:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Why you chose that approach<\/strong><\/li>\n\n\n\n<li><strong>How you\u2019d implement it (with Ansible syntax if possible)<\/strong><\/li>\n\n\n\n<li><strong>What trade-offs exist<\/strong><\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<p><strong>1. Multi-environment Setup (Dev, QA, Prod)<\/strong><\/p>\n\n\n\n<p>\ud83d\udc49 Use inventory + group_vars<\/p>\n\n\n\n<p># inventory\/hosts<\/p>\n\n\n\n<p>[dev]<\/p>\n\n\n\n<p>dev-app-01 ansible_host=10.0.1.10<\/p>\n\n\n\n<p>[qa]<\/p>\n\n\n\n<p>qa-app-01 ansible_host=10.0.2.10<\/p>\n\n\n\n<p>[prod]<\/p>\n\n\n\n<p>prod-app-01 ansible_host=10.0.3.10<\/p>\n\n\n\n<p># group_vars\/dev.yml<\/p>\n\n\n\n<p>app_port: 8080<\/p>\n\n\n\n<p># group_vars\/prod.yml<\/p>\n\n\n\n<p>app_port: 80<\/p>\n\n\n\n<p># site.yml<\/p>\n\n\n\n<p>&#8211; hosts: all<\/p>\n\n\n\n<p>&nbsp; tasks:<\/p>\n\n\n\n<p>&nbsp;&nbsp;&nbsp; &#8211; name: Start app service<\/p>\n\n\n\n<p>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; service:<\/p>\n\n\n\n<p>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; name: myapp<\/p>\n\n\n\n<p>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; state: started<\/p>\n\n\n\n<p>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; vars:<\/p>\n\n\n\n<p>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; port: &#8220;{{ app_port }}&#8221;<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<p><strong>\ud83d\udd39 2. Zero-Downtime Rolling Deployment<\/strong><\/p>\n\n\n\n<p>\ud83d\udc49 Use serial and max_fail_percentage<\/p>\n\n\n\n<p>&#8211; hosts: webservers<\/p>\n\n\n\n<p>&nbsp; serial: 10<\/p>\n\n\n\n<p>&nbsp; max_fail_percentage: 20<\/p>\n\n\n\n<p>&nbsp; tasks:<\/p>\n\n\n\n<p>&nbsp;&nbsp;&nbsp; &#8211; name: Deploy new version<\/p>\n\n\n\n<p>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; copy:<\/p>\n\n\n\n<p>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; src: myapp.war<\/p>\n\n\n\n<p>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; dest: \/opt\/tomcat\/webapps\/<\/p>\n\n\n\n<p>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; notify: restart tomcat<\/p>\n\n\n\n<p>&nbsp; handlers:<\/p>\n\n\n\n<p>&nbsp;&nbsp;&nbsp; &#8211; name: restart tomcat<\/p>\n\n\n\n<p>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; service:<\/p>\n\n\n\n<p>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; name: tomcat<\/p>\n\n\n\n<p>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; state: restarted<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<p><strong>\ud83d\udd39 3. Secrets Management with Ansible Vault<\/strong><\/p>\n\n\n\n<p>\ud83d\udc49 Encrypt secrets with ansible-vault encrypt<\/p>\n\n\n\n<p># vars\/secret.yml (vault encrypted)<\/p>\n\n\n\n<p>db_user: admin<\/p>\n\n\n\n<p>db_pass: !vault |<\/p>\n\n\n\n<p>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; $ANSIBLE_VAULT;1.1;AES256<\/p>\n\n\n\n<p>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 3834343333&#8230; (encrypted data)<\/p>\n\n\n\n<p>&#8211; hosts: db<\/p>\n\n\n\n<p>&nbsp; vars_files:<\/p>\n\n\n\n<p>&nbsp;&nbsp;&nbsp; &#8211; vars\/secret.yml<\/p>\n\n\n\n<p>&nbsp; tasks:<\/p>\n\n\n\n<p>&nbsp;&nbsp;&nbsp; &#8211; name: Configure DB<\/p>\n\n\n\n<p>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; template:<\/p>\n\n\n\n<p>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; src: db.conf.j2<\/p>\n\n\n\n<p>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; dest: \/etc\/db.conf<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<p><strong>\ud83d\udd39 4. Handle Partial Failures<\/strong><\/p>\n\n\n\n<p>\ud83d\udc49 Use ignore_errors and rescue<\/p>\n\n\n\n<p>&#8211; hosts: all<\/p>\n\n\n\n<p>&nbsp; tasks:<\/p>\n\n\n\n<p>&nbsp;&nbsp;&nbsp; &#8211; name: Install package<\/p>\n\n\n\n<p>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; yum:<\/p>\n\n\n\n<p>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; name: httpd<\/p>\n\n\n\n<p>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; state: present<\/p>\n\n\n\n<p>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; ignore_errors: yes<\/p>\n\n\n\n<p>&nbsp;&nbsp;&nbsp; &#8211; block:<\/p>\n\n\n\n<p>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &#8211; name: Risky task<\/p>\n\n\n\n<p>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; command: \/bin\/false<\/p>\n\n\n\n<p>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; rescue:<\/p>\n\n\n\n<p>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &#8211; name: Recovery action<\/p>\n\n\n\n<p>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; debug:<\/p>\n\n\n\n<p>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; msg: &#8220;Task failed, executing rollback&#8221;<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<p><strong>\ud83d\udd39 5. Performance Optimization<\/strong><\/p>\n\n\n\n<p>\ud83d\udc49 Use async + poll for long tasks<\/p>\n\n\n\n<p>&#8211; hosts: all<\/p>\n\n\n\n<p>&nbsp; tasks:<\/p>\n\n\n\n<p>&nbsp;&nbsp;&nbsp; &#8211; name: Run long job in parallel<\/p>\n\n\n\n<p>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; shell: \/usr\/bin\/long_script.sh<\/p>\n\n\n\n<p>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; async: 600<\/p>\n\n\n\n<p>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; poll: 0<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<p><strong>\ud83d\udd39 6. Dynamic Inventory for AWS<\/strong><\/p>\n\n\n\n<p>\ud83d\udc49 Use <strong>aws_ec2 plugin<\/strong><\/p>\n\n\n\n<p># inventory\/aws_ec2.yml<\/p>\n\n\n\n<p>plugin: aws_ec2<\/p>\n\n\n\n<p>regions:<\/p>\n\n\n\n<p>&nbsp; &#8211; ap-south-1<\/p>\n\n\n\n<p>filters:<\/p>\n\n\n\n<p>&nbsp; instance-state-name: running<\/p>\n\n\n\n<p>keyed_groups:<\/p>\n\n\n\n<p>&nbsp; &#8211; key: tags.Environment<\/p>\n\n\n\n<p>&nbsp;&nbsp;&nbsp; prefix: env<\/p>\n\n\n\n<p>ansible-inventory -i inventory\/aws_ec2.yml &#8211;list<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<p><strong>\ud83d\udd39 7. Enforce Compliance (OpenSSL version check)<\/strong><\/p>\n\n\n\n<p>&#8211; hosts: all<\/p>\n\n\n\n<p>&nbsp; tasks:<\/p>\n\n\n\n<p>&nbsp;&nbsp;&nbsp; &#8211; name: Get OpenSSL version<\/p>\n\n\n\n<p>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; command: openssl version<\/p>\n\n\n\n<p>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; register: openssl_ver<\/p>\n\n\n\n<p>&nbsp;&nbsp;&nbsp; &#8211; name: Fail if wrong version<\/p>\n\n\n\n<p>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; fail:<\/p>\n\n\n\n<p>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; msg: &#8220;OpenSSL not up to date!&#8221;<\/p>\n\n\n\n<p>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; when: &#8220;&#8216;OpenSSL 1.1.1&#8217; not in openssl_ver.stdout&#8221;<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<p><strong>\ud83d\udd39 8. Distribute Large WAR File Efficiently<\/strong><\/p>\n\n\n\n<p>\ud83d\udc49 Use <strong>delegate_to + rsync<\/strong><\/p>\n\n\n\n<p>&#8211; hosts: deploy-master<\/p>\n\n\n\n<p>&nbsp; tasks:<\/p>\n\n\n\n<p>&nbsp;&nbsp;&nbsp; &#8211; name: Copy WAR to master node<\/p>\n\n\n\n<p>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; copy:<\/p>\n\n\n\n<p>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; src: myapp.war<\/p>\n\n\n\n<p>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; dest: \/tmp\/myapp.war<\/p>\n\n\n\n<p>&#8211; hosts: appservers<\/p>\n\n\n\n<p>&nbsp; tasks:<\/p>\n\n\n\n<p>&nbsp;&nbsp;&nbsp; &#8211; name: Sync WAR from master<\/p>\n\n\n\n<p>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; synchronize:<\/p>\n\n\n\n<p>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; src: \/tmp\/myapp.war<\/p>\n\n\n\n<p>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; dest: \/opt\/tomcat\/webapps\/<\/p>\n\n\n\n<p>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; delegate_to: deploy-master<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<p><strong>\ud83d\udd39 9. Rollback on Failure<\/strong><\/p>\n\n\n\n<p>\ud83d\udc49 Keep backup before deployment<\/p>\n\n\n\n<p>&#8211; hosts: webservers<\/p>\n\n\n\n<p>&nbsp; tasks:<\/p>\n\n\n\n<p>&nbsp;&nbsp;&nbsp; &#8211; name: Backup old config<\/p>\n\n\n\n<p>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; copy:<\/p>\n\n\n\n<p>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; src: \/etc\/myapp\/config.yml<\/p>\n\n\n\n<p>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; dest: \/etc\/myapp\/config.yml.bak<\/p>\n\n\n\n<p>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; remote_src: yes<\/p>\n\n\n\n<p>&nbsp;&nbsp;&nbsp; &#8211; block:<\/p>\n\n\n\n<p>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &#8211; name: Deploy new config<\/p>\n\n\n\n<p>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; copy:<\/p>\n\n\n\n<p>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; src: config.yml<\/p>\n\n\n\n<p>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; dest: \/etc\/myapp\/config.yml<\/p>\n\n\n\n<p>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; rescue:<\/p>\n\n\n\n<p>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &#8211; name: Rollback config<\/p>\n\n\n\n<p>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; copy:<\/p>\n\n\n\n<p>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; src: \/etc\/myapp\/config.yml.bak<\/p>\n\n\n\n<p>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; dest: \/etc\/myapp\/config.yml<\/p>\n\n\n\n<p>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; remote_src: yes<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<p><strong>\ud83d\udd39 10. Delegate Tasks (Central Log Collection)<\/strong><\/p>\n\n\n\n<p>\ud83d\udc49 Use delegate_to + run_once<\/p>\n\n\n\n<p>&#8211; hosts: all<\/p>\n\n\n\n<p>&nbsp; tasks:<\/p>\n\n\n\n<p>&nbsp;&nbsp;&nbsp; &#8211; name: Collect logs<\/p>\n\n\n\n<p>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; fetch:<\/p>\n\n\n\n<p>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; src: \/var\/log\/app.log<\/p>\n\n\n\n<p>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; dest: logs\/{{ inventory_hostname }}\/<\/p>\n\n\n\n<p>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; flat: yes<\/p>\n\n\n\n<p>&nbsp;&nbsp;&nbsp; &#8211; name: Compress logs<\/p>\n\n\n\n<p>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; archive:<\/p>\n\n\n\n<p>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; path: logs\/<\/p>\n\n\n\n<p>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; dest: logs\/all-logs.tar.gz<\/p>\n\n\n\n<p>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; run_once: yes<\/p>\n\n\n\n<p>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; delegate_to: log-server<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\ud83d\udd39 Intermediate \u2013 Advanced Concepts \ud83d\udd39 Real-world Scenarios \ud83d\udd39 Integration &amp; DevOps Practices \ud83d\udd39 Troubleshooting &amp; Best Practices \u2705 With 4\u20135 years of experience, interviewers will often mix theory + hands-on scenarios. They may ask you to: Perfect \ud83d\udc4d Since &hellip; <\/p>\n","protected":false},"author":1,"featured_media":24375,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_eb_attr":"","om_disable_all_campaigns":false,"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"footnotes":""},"categories":[283],"tags":[],"class_list":["post-24374","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-ansible"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/cloudsoftsol.com\/2026\/wp-json\/wp\/v2\/posts\/24374","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/cloudsoftsol.com\/2026\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/cloudsoftsol.com\/2026\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/cloudsoftsol.com\/2026\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/cloudsoftsol.com\/2026\/wp-json\/wp\/v2\/comments?post=24374"}],"version-history":[{"count":1,"href":"https:\/\/cloudsoftsol.com\/2026\/wp-json\/wp\/v2\/posts\/24374\/revisions"}],"predecessor-version":[{"id":24376,"href":"https:\/\/cloudsoftsol.com\/2026\/wp-json\/wp\/v2\/posts\/24374\/revisions\/24376"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/cloudsoftsol.com\/2026\/wp-json\/wp\/v2\/media\/24375"}],"wp:attachment":[{"href":"https:\/\/cloudsoftsol.com\/2026\/wp-json\/wp\/v2\/media?parent=24374"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/cloudsoftsol.com\/2026\/wp-json\/wp\/v2\/categories?post=24374"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/cloudsoftsol.com\/2026\/wp-json\/wp\/v2\/tags?post=24374"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}