Loki安装使用

# 官方github：https://github.com/grafana/loki
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# 安装
helm repo add grafana https://grafana.github.io/helm-charts
helm repo update
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# 
kubectl create ns loki
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# 安装，设置副本数3，使用pvc
# 时间较长
helm upgrade --install loki grafana/loki-stack  --set grafana.enabled=true,grafana.service.type=NodePort,loki.replicas=3,loki.persistence.enabled=true,loki.persistence.storageClassName=rook-ceph-block,loki.persistence.size=50Gi -n loki

# 配置 ingress
# 生成https证书
kubectl create secret tls test-secret --cert=www.test.com.crt --key=www.test.com.key -n loki
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# 编辑ingress文件
vim loki-ingress-https.yaml
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apiVersion: networking.k8s.io/v1
kind: Ingress
metadata:
  name: loki-grafana
  namespace: loki
  annotations:
    kubernetes.io/ingress.class: "nginx"
spec:
  tls:
    - hosts:
        - loki-grafana.test.com
      secretName: test-secret
  rules:
    - host: loki-grafana.test.com
      http:
        paths:
          - path: /
            pathType: Prefix
            backend:
              service:
                name: loki-grafana
                port:
                  name: service
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# 
kubectl apply -f loki-ingress-https.yaml

# 使用
# 获取grafana密码
kubectl get secret --namespace loki loki-grafana -o jsonpath="{.data.admin-password}" | base64 --decode ; echo
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# grafana选择explore
# 数据源使用loki
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