Helm/Prometheus Stack

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Revision as of 00:50, 30 July 2024 by Shahed (talk | contribs) (Created page with " helm repo add prometheus https://prometheus-community.github.io/helm-charts helm repo update helm repo list ==Config== <syntaxhighlight lang="properties"> export KUBECONFIG="${HOME}/.kube/dev-kubeconfig.yaml" export KUBECONFIG="${HOME}/.kube/gcp-kubeconfig.yaml" export KUBECONFIG="${HOME}/.kube/config" </syntaxhighlight> ==Install== <syntaxhighlight lang="yaml"> kubectl create namespace prometheus helm show values prometheus/kube-prometheus-stack|less cat <<YML | he...")
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helm repo add prometheus https://prometheus-community.github.io/helm-charts
helm repo update
helm repo list

Config

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

Install

kubectl create namespace prometheus
helm show values prometheus/kube-prometheus-stack|less
cat <<YML | helm install -n prometheus prometheus prometheus/kube-prometheus-stack -f -
prometheus:
  ingress:
    enabled: true
    hosts:
    - prometheus.k8s.local
  tls:
  - secretName: prometheus.k8s.local.tls
      hosts:
      - prometheus.k8s.local

alertmanager:
  ingress:
    enabled: true
    hosts:
    - alertmanager.k8s.local
  tls:
  - secretName: alertmanager.k8s.local.tls
      hosts:
      - alertmanager.k8s.local

grafana:
  ingress:
    enabled: true
    hosts:
    - grafana.k8s.local
  tls:
  - secretName: grafana.k8s.local.tls
      hosts:
      - grafana.k8s.local
YML

Playground

PROMETHEUS_STATE_POD_NAME="$(kubectl -n prometheus get pod -l 'app.kubernetes.io/name=kube-state-metrics' -o json|jq -r '.items[0].metadata.name')"
PROMETHEUS_POD_NAME="$(kubectl -n prometheus get pod -l 'app.kubernetes.io/name=prometheus' -o json|jq -r '.items[0].metadata.name')"

helm install -n prometheus    prometheus prometheus/kube-prometheus-stack
helm upgrade -n prometheus -i prometheus prometheus/kube-prometheus-stack
helm show values prometheus/prometheus|less
kubectl -n prometheus exec -it ${PROMETHEUS_POD_NAME} -- cat /etc/prometheus/prometheus.yml
kubectl -n prometheus exec -it ${PROMETHEUS_POD_NAME} -- ls -lah /etc/prometheus
kubectl -n prometheus exec -it ${PROMETHEUS_POD_NAME} -- /bin/sh

kubectl -n prometheus rollout restart deploy prometheus-kube-prometheus-operator
kubectl -n prometheus logs -f ${PROMETHEUS_POD_NAME}
kubectl -n prometheus logs -f prometheus-server-hash
kubectl config --kubeconfig=${HOME}/.kube/aws-kubeconfig.yaml view --flatten
kubectl config --kubeconfig=${HOME}/.kube/gcp-kubeconfig.yaml view --flatten
kubectl config --kubeconfig=${HOME}/.kube/config view --flatten

kubectl -n prometheus get  cm     prometheus-server-conf -o yaml
kubectl -n prometheus edit deploy prometheus-server -o yaml
kubectl -n prometheus get  deploy prometheus-server -o yaml
prometheus-kube-prometheus-alertmanager.prometheus.svc.cluster.local
prometheus-kube-prometheus-prometheus.prometheus.svc.cluster.local
prometheus-grafana.prometheus.svc.cluster.local:3000

kubectl -n prometheus delete all --all
kubectl -n prometheus delete ing --all
kubectl -n prometheus delete sts --all
kubectl -n prometheus delete svc --all
kubectl -n prometheus delete pvc --all
kubectl -n prometheus delete pv  --all

References