What does GitOps really mean?

At a high level, here is how GitOps work.

First of all, It is a technical practice that follows the DevOps philosophy.

You define the desired infrastructure configs in git,

and a tool or an operator software that sits in your infrastructure watches for any changes in git.

If it detects any change in git, it applies those changes to the infrastructure and brings it to the desired state.

Also, the operator software continuously monitors the

state of the infrastructure,

If the infrastructure deviates from the desired state (let's say due to a manual change), the operator software ensures the infrastructure comes back to the desired state.

For example, in git, the infra config says, for autoscaling, the minimum instance count is 3, and the max is 9. The operator software deploys the autoscaling group with the values in Git.

Assume someone does a manual change, now the autoscaling min and max count is 4 and 12 now. Since the operator software continuously monitors the infrastructure, it identifies the configuration drift as compared to the git config.

So it rollbacks the manual changes to match the

desired state in git.

Now, when it comes to Gitops, you mostly hear implementations around Kubernetes using Kubernetes operators.

But the GitOps workflow can be implemented using any tool that supports the workflow.

At a high level, GitOps aims to bring the following. - Git as the source of truth

- Developer-centric infra workflows

- Good traceability of infra changes - Consistency and Standardization

- Security.

- No manual changes.

With Gitops workflow, infrastructure engineers/ developers can focus more on engineering and innovation than on infrastructure management and maintenance.

Comments

Post a Comment

Popular posts from this blog

Getting Started With AWS and Useful Learning Resources

Image
Amazon Web Services(AWS) is the world’s most comprehensive and broadly adopted cloud platform, offering over 200 fully-featured services from data centers globally. AWS’s TTM revenue was $37.549 billion as of Q1 2020 according to their earnings results , or roughly 14% of Amazon's total revenue (slide 11 in the same deck) for the same TTM period. Useful Learning Resources 1) AWS Training Center (FREE) One of best place to learn about AWS and it maintained and updated by AWS officially. AWS Training Center 2) AWS Skill Builder (FREE) Skill Builder is Collections of courses selected by AWS experts to give you a path to your learning goals and the best part is that Courses that we can learn on our own time, at our own place by digital training provided by AWS   AWS Skill Builder 3) AWS Educate Program(FREE) If you are a student, AWS offers educate program in which you can get $100 credits of AWS account for free. So that we can learn aws services hands-on using the credits
Read more

Python Underscore

Image
Using the underscore as a throwaway variable Let's say it was your job to quickly gather contact information from attendees of an event to add them to your mailing list so you can market your product. The more complex the form, the more likely people will pass on filling it out. So instead of having several input boxes, you only have two: Name and Email. Because people often have more than one family name or several middle names, storing their data in a database can be tricky. You want to create a function that takes a full name from a single field and only stores the first name and last name. Underscores are often used as throwaway variables in python. That is a variable whose value you don't care about. See the first function below for an example of how the underscore is used to collect the "extra" names so that only the first and last names are stored. Note that since the underscore is used twice in the first function, it is simply created and overwritten--which do
Read more