DevOps

What can be done with a Docker image after building?

How to create a user in Linux? What tools for Linux server administration do you know (CPU, RAM, disks)?

Tell about your experience working with Nginx: how did you set it up, what did you configure?

What is the difference between the commands docker start and docker run?

In which directory are service configs and systemd unit files stored in Linux?

What does the docker exec command do? What flags are used?

What was the fleet of cars, did you work alone or in a team?

Tell us about your experience with PostgreSQL and PgBouncer: what is PgBouncer used for, and how did you set up the cluster?

How to create a Docker image? What is a Dockerfile and the docker build command?

How to change Kafka cluster parameters (for example, the number of replicas for a topic) and what happens next with the clients?

What is the difference between Ubuntu and CentOS distributions?

Tell us about your stack and work experience

What roles do nodes play in a Kubernetes cluster?

Tell about your experience working with Kafka: how did you monitor the cluster, what consensus mechanism was used?

Tell about your experience working with Kubernetes: what did you configure, how did you deploy clusters?

How did the Kafka cluster learn about its configurations and pass them to clients? How is metadata composed?

What CNI plugin was used? Tell us about the Calico configuration.

What steps need to be taken to create a Kubernetes cluster from scratch (step by step)?

What is the difference between the shutdown and poweroff commands in Linux?

How to diagnose a memory leak in a service? What actions should be taken?