Helm/Elasticsearch

helm repo add bitnami https://charts.bitnami.com/bitnami
helm repo update && helm repo list
kubectl config get-contexts

Config

export KUBECONFIG="${HOME}/.kube/dev-kubeconfig.yaml"
export KUBECONFIG="${HOME}/.kube/gcp-kubeconfig.yaml"
export KUBECONFIG="${HOME}/.kube/config"

Install

helm show values bitnami/elasticsearch --version=21.4.0|less helm show values bitnami/elasticsearch --version=21.4.1|less kubectl get ns|grep elasticsearch kubectl delete ns elasticsearch kubectl create ns elasticsearch	kubectl get ns|grep elasticsearch kubectl -n=elasticsearch create secret generic elasticsearch \ --from-literal=elasticsearch-password=sadaqah! \ --dry-run=client -o=yaml \ | kubectl apply -f=-
cat <<ENV | kubectl -n=elasticsearch create secret generic elasticsearch --from-env-file=/dev/stdin elasticsearch-password=sadaqah! ENV
cat << YML | kubectl -n=elasticsearch apply -f=- --- apiVersion: v1 kind: PersistentVolume metadata: name: pv-elasticsearch spec: persistentVolumeReclaimPolicy: Retain storageClassName: standard capacity: storage: 10Gi accessModes: - ReadWriteOnce hostPath: path: /tmp/hostpath-provisioner/elasticsearch/pvc-elasticsearch --- apiVersion: v1 kind: PersistentVolumeClaim metadata: labels: app.kubernetes.io/name: elasticsearch name: pvc-elasticsearch spec: storageClassName: standard accessModes: - ReadWriteOnce resources: requests: storage: 10Gi volumeName: pv-elasticsearch YML	cat << YML | kubectl -n=elasticsearch apply -f=- --- --- apiVersion: v1 kind: PersistentVolumeClaim metadata: labels: app.kubernetes.io/name: elasticsearch name: pvc-elasticsearch spec: storageClassName: standard accessModes: - ReadWriteOnce resources: requests: storage: 10Gi YML
PV_NAME="$(kubectl -n=elasticsearch get pvc pvc-elasticsearch -o=yaml|yq -r .spec.volumeName)" cat <<YML |kubectl -n=elasticsearch patch pv ${PV_NAME} --patch-file=/dev/stdin --- spec: persistentVolumeReclaimPolicy: Retain YML
cat <<YML | helm -n=elasticsearch install elasticsearch bitnami/elasticsearch --version=21.4.1 -f=- --- ingress: path: / enabled: true ingressClassName: nginx hostname: elasticsearch.k8s.local security: enabled: true existingSecret: elasticsearch master: masterOnly: false replicaCount: 1 data: replicaCount: 0 ingest: replicaCount: 0 coordinating: replicaCount: 0 YML
xdg-open http://elasticsearch.k8s.local &>/dev/null & gnome-open http://elasticsearch.k8s.local &>/dev/null &	x-www-browser http://elasticsearch.k8s.local &>/dev/null & sensible-browser http://elasticsearch.k8s.local &>/dev/null &

Uninstall

helm uninstall -n=elasticsearch elasticsearch
kubectl delete namespace elasticsearch

Playground

helm -n=elasticsearch install elasticsearch bitnami/elasticsearch --version=21.4.0 helm -n=elasticsearch upgrade -i elasticsearch bitnami/elasticsearch --version=21.4.1 helm show values bitnami/elasticsearch --version=21.4.1|less
kubectl -n=elasticsearch exec -it svc/elasticsearch -c=elasticsearch-coordinating-0 -- sh kubectl -n=elasticsearch exec -it svc/elasticsearch -c=elasticsearch-master-0 -- sh
kubectl config --kubeconfig=${HOME}/.kube/aws-kubeconfig.yaml view --flatten kubectl config --kubeconfig=${HOME}/.kube/dev-kubeconfig.yaml view --flatten kubectl config --kubeconfig=${HOME}/.kube/gcp-kubeconfig.yaml view --flatten kubectl config --kubeconfig=${HOME}/.kube/config view --flatten
kubectl -n=elasticsearch delete all --all kubectl -n=elasticsearch delete ing --all kubectl -n=elasticsearch delete sts --all	kubectl -n=elasticsearch delete svc --all kubectl -n=elasticsearch delete pvc --all kubectl -n=elasticsearch delete pv --all
kubectl -n=elasticsearch rollout history deploy elasticsearch kubectl -n=elasticsearch rollout restart deploy elasticsearch kubectl -n=elasticsearch rollout status deploy elasticsearch	kubectl -n=elasticsearch logs -f svc/elasticsearch -c=elasticsearch-master-0 kubectl -n=elasticsearch exec -it svc/elasticsearch -- sh kubectl -n=elasticsearch logs -f svc/elasticsearch

References

Helm » Prometheus Stack Helm » Cert Manager Helm » Elasticsearch Helm » OpenSearch Helm » GitLab Helm » Solr Helm
K8s » Configure Service Accounts for Pods K8s » Restart Pods With Kubectl K8s » Interactive Pod K8s » Restart Pods Docker » Makefile Kubernetes Minikube Kubectl CURL K8s	K8s » kubectl rollout K8s » CSI Hostpath Driver K8s » Ingress K8s » Service K8s » Run MySQL MinIO CIDR UFW Port