This blog is dedicated to answering all of your queries regarding the Saltstack interview questions.

Salt is an integral component of DevOps toolsets due to its power to efficiently manage complex multi-tiered IT environments and automate them for management purposes.

From basic installation and command syntax through configuration and troubleshooting, we have assembled an exhaustive set of interview questions covering every facet of the Saltstack ecosystem.

Working through these questions and answers will not only refresh essential topics but will also show you how to effectively convey them and demonstrate your knowledge and expertise.

1. What is Saltstack?

Saltstack is a popular configuration management tool that integrates Kubernetes deeply into its platform. It is an open-source solution that allows for easy setup and configuration of various systems.

2. How does Saltstack work?

Saltstack uses a push-based architecture to manage configuration. The server pushes configuration onto the nodes, and communication occurs through an agent running on the nodes.

Saltstack is different from Ansible in that it uses a minion client instead of the SSH protocol.

3. What is a minion in Saltstack?

A minion is a node that runs the Saltstack agent. The agent communicates with the Saltstack server to receive configuration and execute commands.

4. Is Saltstack expensive to use?

Saltstack is open-source, so it does not have a licensing cost. However, it may require resources to set up and maintain, depending on the size of the infrastructure being managed.

5. Who uses Saltstack?

Saltstack is used by large enterprises like Google, LinkedIn, and Wikimedia. However, its market share is relatively small, with only 8-10% of the market.

6. Is Saltstack popular?

Saltstack is expected to gain more recognition and cover more of the market space by the end of this year or next year.

Despite its limited adoption, it is still a powerful configuration management tool.

7. What is the difference between execution and state modules in Saltstack?

Execution modules are used to send commands and configuration to salt slaves, while state modules are used to execute modules inside a configuration file.

The name of the module changes based on whether it is used for execution or state modules.

8. What is the architecture of Saltstack?

The Salt architecture includes two types of modules: execution modules and state modules.

Execution modules are used to send commands and configuration to salt slaves, while state modules are used to execute modules inside a configuration file.

The Salt Master is a demon that controls everything, and each minion has a unique ID.

The minion sends the configuration report back to the Salt Master, maintaining a TCP connection.

9. What is a grain in Saltstack?

Grains are an interface that provides information specific to a minion, like Ohio facts.

10. What is a pillar in Saltstack?

The pillar is a separate folder where variables are stored based on nodes, and when a node executes a formula or state file, it loads the data from the pillar folder.

11. What is the purpose of state files in Saltstack?

State files manage resources and modules, with dot SLS extensions.

12. What do facts provide in Saltstack?

Facts provide information about node share issues, CPU, operating system, memory, IP, and network details.

13. What are SaltRunners in Saltstack?

SaltRunners are modules located inside the Salt Master that perform tasks such as getting job status, connecting connections, reading data from external APIs, and using salt minions.

14. What are Returners in Saltstack?

Returners send data back to the server after executing configuration data.

15. What is the purpose of Reactors in Saltstack?

Reactors trigger events based on successful installation or errors.

16. What is SaltCloud in Saltstack?

SaltCloud is a module for connecting Salt Master to interfaces or nodes on the cloud.

17. What tools are used in the setup described in the text?

Minion, SSH, and Salt Sin Sync are installed.

18. What is the purpose of the custom script in the Dockerfile?

The custom script is used as the CMD to start the Salt Master and ensure it runs before the container is started.

19. What is the importance of the Docker compose file in understanding Kubernetes and Docker Swarm?

The Docker compose file is essential for understanding Kubernetes and Docker Swarm, as it demonstrates the different variables and attributes involved in these tools.

20. What are the responsibilities of DevOps developers and infrastructure professionals in the context of DevOps?

DevOps developers manage the software side of DevOps, while infrastructure professionals set up servers, networks, TCP connections, ports, and communication protocols.

21. What are the job opportunities available in Kubernetes and Docker Swarm infrastructure setup?

Job opportunities exist in both environments, as setting up Kubernetes and Docker Swarm infrastructure is challenging.

22. What is the role of a DevOps architect in the context of Kubernetes and Docker Swarm tools?

A DevOps architect does not need to know how to set up the infrastructure but must design the CI CD pipeline.

23. What knowledge should a DevOps guy have about Docker?

They should know Docker, containers, starting and stopping containers, and using them.

They should also know how to push configuration to a cluster without worrying about the underlying cluster setup

The text provides links and steps for all aspects of the job, as there will be other infrastructure people available.

24. What do the Minion and Master need for installation?

The Minion doesn’t need the Minion, and the Salt Master only needs the Salt Master and Salt SSH.

25. What is the purpose of the text?

The text provides information and instructions on using Saltstack, a tool for managing and checking the state of various items, specifically in the context of infrastructure.

26. What is the main focus of the session in the text?

The main focus of the session is on using tools and infrastructure in Saltstack, rather than setting up the basics.

27. What is the purpose of the post file mentioned in the text?

The post file mentioned in the text is used to set up a server and minions in Saltstack.

28. Where are configurations for the Saltstack system stored?

Configurations for the Saltstack system are stored in the salt-minion and salt server’s directory structure, specifically in the pillar files and state files folders.

29. What is the difference between a packet installation and a state execution of a module in Saltstack?

A packet installation is a simple configuration in Saltstack that involves installing a package, while a state execution of a module is a more complex process that involves applying a state execution of a module to a system.

Last but not least, to successfully navigate an interview questions and answers blog dedicated to Saltstack you need an in-depth knowledge of its layout and hierarchy of commands.

Exploring this blog’s questions and answers should provide learners with confidence when facing technical obstacles during interviews.

As someone just getting started in Saltstack or looking to enhance existing skills, learning new techniques is critical in staying current on developments within configuration management and automation.

I hope your interview goes smoothly!!!