Comprehensive DevOps curriculum and tips

Configure and manage systemd services, units, and targets to control application lifecycle.

Analyze system and application logs using journalctl and log files in /var/log.

Configure SSH key-based authentication and harden the SSH daemon against common attacks.

Manage disk partitions using fdisk or parted and create, mount, and manage filesystems (ext4, xfs).

Differentiate between Layer 4 and Layer 7 load balancers, reverse proxies, and Network Address Translation (NAT).

Write robust Bash scripts using variables, conditionals, loops, and functions with strict error handling (set -euo pipefail).

Filter and extract text using grep with regular expressions and key options (-i, -v, -c, -o).

Automate a specific AWS task using the `boto3` library (e.g., tag-based instance management).

Read, write, and manipulate JSON and YAML configuration files.

Implement robust logging and structured error handling in Python automation scripts.

Write a Jenkins declarative pipeline from scratch with stages, steps, and post-build actions.

Develop and use Jenkins Shared Libraries and GitHub Actions reusable workflows to reduce code duplication.

Build, tag, and publish a container image to a registry (e.g., Docker Hub, ECR) from a CI/CD pipeline.

Use data sources to fetch external information and dynamic blocks to generate repeatable nested configurations.

Securely manage sensitive data such as passwords and API keys using Ansible Vault.

Integrate Ansible playbook execution into a CI/CD pipeline with secure credential handling.

Configure AWS Secrets Manager and integrate it with applications and CI/CD pipelines.

Implement advanced IAM patterns, such as permission boundaries and cross-account access for CI/CD.

Automate infrastructure compliance checks using AWS Config rules and remediation actions.

Analyze and optimize AWS costs using Cost Explorer, budgets, and resource tagging strategies.

Structure behavioral interview answers using the STAR method with DevOps-specific examples.

Explain a CI/CD pipeline design decision, including the trade-offs considered and the final outcome.

Describe a scenario where you automated a manual process and quantify the impact on efficiency or reliability.

Design a resume-worthy end-to-end project that provisions cloud infrastructure, configures it, and deploys a containerized application.