1. Day 0 Expectations

• Understand the foundational concepts of DevOps and its role in streamlining software development and operations.

2. Software Development Lifecycle (SDLC)

• Stages:
  • Requirements: Gathering and defining project needs.
  • System Design: Creating architecture and design specifications.
  • System Design Implementation: Building the system based on design.
• Material Model:
  • Focuses on Requirement Specification, System Design, and Implementation.
• Entities Involved:
  • Primarily Developers and Testers (referred to as "Jes" repeatedly, likely a typo).
• Responsibilities:
  • Developers and Testers handle coding, testing, and implementation tasks.

3. DevOps Lifecycle

• Key Phases:
  1. Code:
     • Development of source code.
  2. Build:
     • Compiling and preparing source code for deployment.
  3. Test:
     • Automated testing to ensure quality and functionality.
     • Goal: Rapid feedback on code changes.
  4. Release:
     • Integration into a shared repository via CI/CD pipelines.
     • Enables quick error detection and resolution.
  5. Deploy:
     • Managing software deployment across environments (e.g., physical machines, containers).
     • Tools: Docker, Kubernetes, etc.
  6. Operate:
     • Running and maintaining the updated system in production.
  7. Monitor:
     • Ensuring application performance and environment stability.
     • Tools: Splunk, Nagios.
     • Objective: Identify service disruptions and their causes quickly.
• Sprints and Backlog:
  • Agile methodology with iterative sprints.
  • Tasks managed in a sprint backlog for continuous delivery.

4. DevOps Terminologies

• Continuous (repeated emphasis, likely referring to):
  • Continuous Integration (CI): Regularly merging code changes into a central repository with automated builds and tests.
  • Continuous Deployment (CD): Automatically deploying code changes to production after passing tests.
  • Continuous Monitoring: Ongoing observation of system performance and health.

5. Responsibilities of a DevOps Engineer

• Core Duties:
  • Act as an excellent system administrator.
  • Deploy and manage virtualization technologies.
  • Hands-on expertise in network and storage management.
  • Basic coding knowledge for automation and scripting.

6. Skills of a DevOps Engineer

• Technical Skills:
  • Version Control: Proficiency with Git or SVN.
  • Continuous Integration: Experience with Jenkins for CI pipelines.
  • Virtualization/Containerization: Knowledge of Docker and Kubernetes.
  • Configuration Management: Familiarity with Puppet, Chef, or Ansible.
  • Monitoring: Expertise in tools like Nagios and Splunk.
• Networking Skills:
  • General networking knowledge (e.g., maintaining connections, port forwarding).
  • Cloud management, particularly with AWS, ensuring secure configurations.
• Soft Skills:
  • People management to collaborate effectively with cross-functional teams.

7. Tools Highlighted

• Splunk: For monitoring and analyzing application performance.