DevOps Specialist Interview Questions and Answers

The ENTRYPOINT instruction specifies the command that will be executed when a container is run. The CMD instruction provides default arguments for the ENTRYPOINT command.

• ENTRYPOINT is used to specify the executable that will run as the main process inside the container.

• CMD is used to provide default arguments for the ENTRYPOINT command.

• ENTRYPOINT and CMD can be used together to create a flexible Docker image.

• ENTRYPOINT is preferred when you want to define a container with a s...read more

Deployment.yaml is used to define Kubernetes deployments and their properties.

• Deployment.yaml is a Kubernetes manifest file that defines the desired state of a deployment.

• It includes properties such as the number of replicas, the container image to use, and the ports to expose.

• The structure of a deployment.yaml file includes metadata, spec, and status sections.

• The metadata section includes information such as the name and labels of the deployment.

• The spec section includes the...read more

Command to check free space in linux

• Use the 'df' command to check free space in Linux

• The '-h' option can be used to display the output in a human-readable format

• The '-T' option can be used to display the file system type

• The '-x' option can be used to exclude specific file system types

• The '-i' option can be used to display the inode information

Debugging errors involves identifying, isolating, and resolving issues in a systematic manner.

• Identify the error message or symptom

• Reproduce the error to isolate the issue

• Check logs and system metrics for clues

• Use debugging tools to pinpoint the root cause

• Develop and test a solution

• Implement the fix and monitor for any further issues