Blog / Flant

Our latest publications at Medium

Today Keep your eyes open: How to avoid exposing your internal proxy

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.

3 jule Upgrading MySQL (Percona Server) from 5.7 to 8.0

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

23 june ConfigMaps in Kubernetes: how they work and what you should remember

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

11 june Migrating Cassandra from one Kubernetes cluster to another without data loss

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

2 june Distributed CI/CD with werf

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.

29 may Announcing k8s-image-availability-exporter for Kubernetes

Learn about Prometheus exporter that warns about missing images defined in Kubernetes objects and not existing in your container registry (Docker Registry V2 compatible).

27 may Using SSL certificates from Let’s Encrypt in your Kubernetes Ingress via cert-manager

Tutorial to create self-signed certificates and regular SSL certs validated by HTTP and DNS methods of Let's Encrypt ACME server for your Kubernetes clusters.

6 may Full support for popular Docker Registry implementations in werf

Storing images and cleaning them up in different Docker Registry implementations supported by werf.

29 april 3 cases from our Ceph experience

Tips & tricks for operating Ceph clusters involving taking out its OSDs without data loss, allocating disk space, migrating a VM from LVM to Ceph RBD.

17 april Content-based tagging in the werf builder