Monitoring Automation

Deploy kind cluster (Method 1)

[ $(uname -m) = x86_64 ] && curl -Lo ./kind https://kind.sigs.k8s.io/dl/v0.22.0/kind-linux-amd64
chmod +x ./kind
sudo mv ./kind /usr/local/bin/kind

kind create cluster      # one-node k8s cluster

Deploy microk8s cluster (Method 2)

• K8s Cluster: https://microk8s.io/docs/getting-started
• Storage Class: https://microk8s.io/docs/how-to-ceph

Setup for metrics-server (required for nginx HPA) - Method 1:

• get https://github.com/kubernetes-sigs/metrics-server/releases/latest/download/components.yaml.
• patch metrics-server deployment with --kubelet-insecure-tls.
• apply components.yaml

Deploy k8s objects to k8s cluster:

• Namespace first
• Nginx manifest files second

Use metrics from prometheus to autoscale (required for nginx HPA) - Method 2 - TODO:

• https://towardsdatascience.com/kubernetes-hpa-with-custom-metrics-from-prometheus-9ffc201991e
• https://artifacthub.io/packages/helm/prometheus-community/prometheus-adapter

Expose prometheus ClusterIP service on localhost

kubectl port-forward -n prometheus-app service/prometheus-service 9090:9090