Day-1 | Fundamentals of DevOps | Free DevOps Course | 45 days | #devopscourse #learning
Introduction to DevOps
In this section, Abhishek introduces the DevOps Zero to Hero course and explains what will be covered in the first lesson.
What is DevOps?
- DevOps is a culture that improves an organization's ability to deliver applications.
- The end goal of any organization is delivery, and DevOps helps organizations improve their ability to deliver applications.
Why is DevOps important?
- Understanding why you are using DevOps and what it actually is essential for job interviews.
- Organizations that use DevOps can deliver applications faster and with higher quality.
Introducing Yourself for a DevOps Engineering Position
- Knowing how to introduce yourself during a job interview is crucial.
- Being confident and prepared with answers to basic questions about day-to-day activities as a DevOps engineer can help you project yourself in a better way during an interview.
Day-to-Day Activities of a DevOps Engineer
- Knowing your day-to-day activities as a DevOps engineer is important for job interviews.
- People may ask you what your day-to-day activities are or what you usually do on an everyday basis. Be prepared with answers to these questions.
DevOps Overview
In this section, the speaker provides an overview of DevOps and its importance in improving application delivery.
What is DevOps?
- DevOps is a process of improving application delivery by ensuring proper automation, quality, monitoring, and continuous testing.
- It is not just about delivery but also about improving the ability to deliver applications.
Importance of Automation
- Automation is essential for improving delivery speed and reducing manual labor.
- However, automation alone does not guarantee customer satisfaction as they also expect high-quality products.
Monitoring and Testing
- Monitoring ensures that quality standards are maintained while testing helps ensure that automation is correct.
- These two aspects are critical components of DevOps alongside automation and quality assurance.
Defining DevOps
- The new definition of DevOps includes improving application delivery by ensuring proper automation, quality assurance, monitoring, and continuous testing.
- This process can be applied to any product or service that requires efficient delivery.
Conclusion
In this section, the speaker concludes by summarizing the key points covered in the previous sections.
Key Takeaways
- DevOps is a process of continuously improving application delivery through proper automation, quality assurance, monitoring, and continuous testing.
- Automation alone does not guarantee customer satisfaction; it must be accompanied by high-quality products.
- Monitoring ensures that quality standards are maintained while testing helps ensure that automation is correct.
Continuous Monitoring
In this section, the speaker discusses the importance of monitoring and observability in DevOps, as well as the concept of continuous testing.
Monitoring and Observability
- Monitoring and observability are essential aspects of DevOps.
- The goal is to ensure proper automation with maintained code or application quality.
Continuous Testing
- Continuous testing is crucial for fastening up the application delivery process.
- The end goal is to eliminate manual processes during application delivery.
Why DevOps?
In this section, the speaker explains why DevOps is important by using a simple example.
Developer and Customer Relationship
- The developer writes code for an application, and the customer receives it.
- Without DevOps in place, there can be delays or issues in between these two points.
Before DevOps
In this section, the speaker discusses what happened before DevOps was introduced.
Pre-DevOps Era
- Before DevOps, there were often delays or issues between developers writing code and customers receiving it.
- This led to inefficiencies in the application delivery process.
Overview of the Traditional Application Delivery Process
In this section, the speaker explains the traditional application delivery process that was used before 10 years ago. The process involved three main roles: system administrator, build and release engineer, and tester.
Roles Involved in Traditional Application Delivery Process
- Developers would share their code in a central location.
- System administrators would create a server to deploy the application created by developers.
- Testers would test the application on the server created by system administrators.
- Build and release engineers would promote the tested application to either production or pre-production/staging environment.
Responsibilities of Different Roles
System Administrator
- Create a server for testing applications as they cannot be tested on personal laptops.
- Install an application server on the created server to hold applications.
Build and Release Engineer
- Deploy applications onto servers using an app server installed by system administrators.
Tester
- Test applications on servers created by system administrators.
Conclusion
In this section, the speaker concludes that before 10 years ago, delivering an application from developer laptop to customer required three different roles: system administrator, build and release engineer, and tester.
Introduction to DevOps
In this section, the speaker explains what DevOps is and why it has emerged as a concept.
What is DevOps?
- DevOps is a culture that has emerged to automate the process of delivering applications from personal laptops to production for customers.
- The manual effort involved in the process made it slow, so different teams like system administrators, build and release engineers, and server administrators worked together to improve the delivery process.
- DevOps improves the delivery process by adopting automation, ensuring quality in applications, continuously monitoring them, and testing them.
Why did DevOps emerge?
- DevOps emerged because of the need to improve the delivery process due to manual efforts involved in delivering applications.
- As a culture, it allows organizations to adapt quickly to new tools or changes in processes that can improve efficiency.
Introducing Yourself as a DevOps Engineer
In this section, the speaker provides tips on how to introduce yourself as a DevOps engineer during interviews.
How to Introduce Yourself
- When introducing yourself as a DevOps engineer during an interview, mention your experience working as one for 4-5 years (not more than 10 years since DevOps itself hasn't been around for that long).
- Take your time while explaining your day-to-day activities or unique experiences. There's no set time limit for this.
- Mention any previous experience you have had before becoming a DevOps engineer such as working as a system admin.
Introduction to DevOps
In this section, the speaker explains how to introduce yourself in a DevOps job role.
Introducing Yourself in a DevOps Job Role
- If you have previous experience, always mention your current experience in DevOps and try to put whatever you were doing previously.
- Explain your background so that the interviewer can understand where you are coming from. For example, if you were a system administrator before switching to DevOps, mention it.
- As an interviewer, they will think about how your past experience can be useful for their organization. For instance, if they use AWS, your experience with server administration might be helpful.
- Explain your current experience in DevOps and then talk about your roles and responsibilities. For example, "In my current organization, I take care of automation."
- If asked about tools and technologies used in DevOps, mention them but don't complicate things. Focus on explaining what you currently use.
Conclusion
- To introduce yourself in a DevOps job role, explain your current experience in DevOps and provide some background information. Mention the four pillars of DevOps (automation, quality monitoring, and testing).
Introduction to DevOps Course
In this section, the instructor introduces the free DevOps course and explains the course curriculum and syllabus.
Course Introduction
- The course is a 40-day DevOps class that covers various topics related to DevOps.
- The instructor has already explained the course curriculum and syllabus in previous videos.
- It is recommended to watch the previous videos before starting this one to understand the process that will be followed in this course.
Purpose of Free Course
- The purpose of keeping this course free is to benefit those who are interested in learning DevOps but cannot afford a paid course.
- The goal is for everyone to learn DevOps, so it's encouraged to share this video with a larger audience.
Day One Recap
In this section, the instructor recaps what was covered on day one and previews what will be covered on day two.
Day One Recap
- On day one, the instructor introduced the free DevOps course and explained its purpose.
- He also provided an overview of the course curriculum and syllabus.
Preview of Day Two
- On day two, software development life cycle (SDLC) will be discussed along with the role of DevOps in SDLC.
- A recap of what was learned on day one will also be provided.