Kubernetes For Testers And QA

In this blog post, we are covering why Testers and QA should learn Docker & Kubernetes and what they should learn in Docker & Kubernetes.

In this blog, We are going to Cover:

• What Is Container (Docker)?
• What Is Kubernetes?
• Why Tester & QA learn Kubernetes?
• Type Of  Testing
• Manual Testing
• Smoke Testing
• Automated Testing
• Test-Infra Kubernetes
• E2E test and Conformance Tests
• Terratest

What Is Container (Docker)?

Containers are a software package into an invisible box with everything that the application needs to run. That includes the operating system, application code, runtime, system tools, system libraries, and etc. Docker containers are built off Docker images. Since images are read-only, Docker adds a read-write file system over the read-only file system of the image to create a container.

Read More about Docker Architecture & Docker Images

What Is Kubernetes? 

In organizations, multiple numbers of containers running and in a container and on multiple hosts and on containers multiple applications running at a time so it is very hard to manage all the containers and applications together so we use Kubernetes.

Kubernetes is an open-source platform for managing containerized workloads and services. Kubernetes takes care of scaling and failover for your application running on the container.

Read More about Kubernetes Architecture & scaling and High Availability In Kubernetes

Why Tester & QA learn Kubernetes?

After the architect design an application then the developer deploys that application on the containers after that the tester should test it to check if that application is working properly and are there any changes required in that application. Once that done tester checks that application end to end if any upgrade or changes required in any component in a cluster.

Type Of  Testing

There are two ways to validate/test the cluster:

1) Manual Testing

2) Automated Testing

Manual Testing

Manual testing is validating each component of the cluster manually this includes checking nodes are up or not, check the status of pods deployed on the cluster, expose the application to test services, check secrets, encryption, security, storage, networking, etc.

Smoke Testing

Smoke testing is a type of testing that determines whether the deployed build is stable or not. In this testing, important functions are tested to ensure that they work properly. Smoke tests confirm whether the QA team can proceed with further testing. Smoke tests are a minimal set of tests run on each build.

Note: Related Github link for Smoke Test

Automated Testing

To test a Kubernetes cluster we can also perform automated testing. We can run a single script by this we can perform end to end testing for our cluster. There are different automated testing Kubernetes tools and 3rd party tools like Test-Infra, E2E test and Conformance Tests, Terratest available by using that we can perform end to end testing.

Test-Infra Kubernetes

E2E Test And Conformance Tests

Terratest

Terratest is a 3rd party automated Testing tool that uses Go library that makes it easier to write automated tests for your code. It provides different types of functions and patterns for common infrastructure testing tasks, including Testing Docker images, Helm Charts, Working with Kubernetes APIs.

Note: Related Github link for Terratest

Job Opportunities QA And Test Team

These are the Screen-shots of jobs and Kubernetes test tasks Organizations looking for Testing and QA team.

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To know about What Is Kubernetes, Why Learn Docker And Kubernetes and Who Should Learn this, VM vs Container (Docker) and Monolithic vs Microservices, 7 Things You Must Learn, Job opportunities for Kubernetes Application Developer in the market, and what to study Including Hands-On Labs You Must Perform To Clear Certified Kubernetes Application Developer (CKAD) certification exam by registering for our FREE Masterclass.

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