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

1. Specify a Node via nodeSelector When Creating a Workload Add a label to the node 1 kubectl label node node2 project=A Create the workload with the specified nodeSelector 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 cat <<EOF | kubectl apply -f - apiVersion: apps/v1 kind: Deployment metadata: name: nginx-nodeselector spec: replicas: 1 selector: matchLabels: app: nginx-nodeselector template: metadata: labels: app: nginx-nodeselector spec: nodeSelector: project: A containers: - name: nginx image: nginx EOF Check the workload 1 2 3 4 kubectl get pod -o wide NAME READY STATUS RESTARTS AGE IP NODE NOMINATED NODE READINESS GATES nginx-nodeselector-7bb75b7687-7r5xk 1/1 Running 0 19s 10.

If you need to monitor the network status between two hosts, or between a host and an external service, then the Blackbox Exporter mentioned in this article is worth a try. 1. Installing Blackbox 1.1 Deploying on a Host Download the binary package 1 2 3 4 5 wget https://github.

1. Why kube-status-metrics is needed Kubernetes monitoring mainly focuses on two kinds of metrics: Basic performance metrics CPU, memory, disk, network, and so on. These can be collected by deploying node-exporter as a DaemonSet and having Prometheus scrape the relevant metrics. Resource object metrics The replica count of a Deployment, the running state of a Pod, and so on.

1. Global Network Planning Many global, multi-region infrastructures do not put much thought into network planning at the outset. Once the business grows complex enough, they are forced into network adjustments and optimization. Yet any major network change has a huge impact on the business. In the end you are stuck in a dilemma, able to do nothing but invest more people, carry the baggage of history, and walk along the edge of a cliff again and again.