Kops Kubernetes upgrade to etcd-v3 with etcd-manager and calico-v3
This is to document a procedure I followed during Kubernetes cluster upgrade from 1.10 to latest 1.12 with kops. I’ve been using kops for all our test and pr...
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Etcd cluster member recovery in Kubernetes
This is a process I followed to recover one of the etcd masters that was broken after unsuccessful kops upgrade. Login to one of the healthy etcd cluster mem...
GitLab CI/CD Multi-project Pipelines for Terraform and AWS
I use Terraform to provision our AWS infrastructure. Each production and staging environment gets provisioned in its own VPC and each service is clustered or...
Ad blocking with BIND DNS
There are couple of options to block ads in Bind DNS server like ad block Zone files or RPZ (Response Policy Zones).
Kubernetes HPA Autoscaling with Custom Metrics
The initial Horizontal Pod Autoscaler was limited in features and it only supported scaling deployments based on CPU metrics. The most recent Kubernetes rele...