1. Installation Method 1 2 kubectl apply -f https://openebs.github.io/charts/openebs-operator.yaml kubectl patch storageclass openebs-hostpath -p '{"metadata": {"annotations":{"storageclass.kubernetes.io/is-default-class":"true"}}}' OpenEBS is mainly used as the default storage for Tekton pipelines. I had also tried Longhorn before, but it could not hold up during peak hours and the pipelines went Pending. And after uninstalling Longhorn there were leftovers, which caused kube-apiserver to keep reporting errors, and in the end it took a great deal of effort to remove.

The monitoring metrics described in this article cover only the basic Kubernetes metrics, not business-related metrics. The components involved are prometheus-server, kube-state-metrics, and node-exporter, and the data retention period is 3 days. 1. Monitoring-related components in the cluster 1 2 3 4 helm -n monitor list NAME NAMESPACE REVISION UPDATED STATUS CHART APP VERSION prom-k8s monitor 1 2022-05-12 16:47:53.

1. Background At 10:00 in the morning, a colleague asked me to run a task on the cluster, so I created a Kubernetes Job through a tool. When the tool creates a Job, it first gets all the nodes on the cluster, then binds to each node one by one to create Jobs.

1. Self-signing a *.docker.io Domain Certificate 1.1 Creating a CA Certificate Generate the CA certificate private key 1 openssl genrsa -out ca.key 4096 Generate the CA certificate 1 2 3 4 openssl req -x509 -new -nodes -sha512 -days 3650 \ -subj "/C=CN/ST=Beijing/L=Beijing/O=example/OU=Personal/CN=chenshaowen.com" \ -key ca.key \ -out ca.crt 1.2 Creating a *.

1. The Challenge of a Cross-Region Harbor If all you need is to store image data in a simple way, Registry is an excellent choice as an image repository. Registry not only supports multiple storage backends, but can also be configured with HTTPS certificates and access credentials. Worth noting: Harbor also uses Registry to store image data.