Our collection of kubectl commands, their combinations and tips to simplify performing regular tasks when you operate a Kubernetes cluster.

Our stories include a poorly prepared Kafka in Docker, an unexpected network issue for ZooKeeper & ClickHouse, a faulty hardware in the data center, and the PgSQL database optimization.

Sometimes you might need to make changes directly in etcd data of your Kubernetes cluster. Here is our experience in solving network issues using an enhanced version of etcdhelper tool.

Grafana statusmap panel plugin helps to visualize status of multiple objects over time. It's very useful for monitoring needs in your DevOps routines. What are the new features introduced with its v0.3.0 release? What is the project's roadmap?

Shell-operator allows you to make Kubernetes operators using scripts in Bash, Python, etc. (or other binaries): fast, easy and correct way. Here you will find last news from this Open Source project.

How to keep all your IP addresses private to prevent DDoS attacks and other security vulnerabilities in your network infrastructure. Our real case and general recommendations.

Preparing your MySQL multi-master cluster for a huge upgrade in Linux. Making a smooth transition with some help of Percona Toolkit.

Why we have ConfigMaps in Kubernetes? How they are organized and what happens when they change? How can you monitor these changes?

How we have moved a running Cassandra instance between Kubernetes clusters and changed the K8s operator to manage it.

werf is an Open Source CLI tool to build Docker images and deploy them to Kubernetes. Its new distributed mode is easy to set up and making your CI/CD pipeline more scalable.