github.com/alibaba/sealer@v0.8.6-0.20220430115802-37a2bdaa8173/applications/loki-stack-promtail/README.md (about)

     1  # Overview
     2  
     3  This image chooses OpenEBS LocalPV as its persistence storage engine.
     4  
     5  Components included in this image:
     6  
     7  - 1 DaemonSet for promtail.
     8  - 1 DaemonSet for node-exporter.
     9  - 1 StatefulSet replica for loki server which requests "50Gi" storage.
    10  - 1 Deployment replica for grafana.
    11  - 1 Deployment replica for kube-state-metrics.
    12  - 1 Deployment replica for alertmanager.
    13  - 1 Deployment replica for pushgateway.
    14  - 1 Deployment replica for prometheus-server.
    15  
    16  ## How to use it
    17  
    18  Access the Grafana monitoring dashboard,you can run the kubectl port-forward command to access the Grafana monitoring dashboard,then open `http://localhost:3000` in your browser and log on with the default username and password.
    19  
    20  To get the admin user and password for the Grafana pod, run the following command:
    21  
    22  ```shell
    23  kubectl get secret -n promtail-loki-stack-system  promtail-grafana -o jsonpath="{.data.admin-user}" | base64 --decode ; echo
    24  kubectl get secret -n promtail-loki-stack-system  promtail-grafana -o jsonpath="{.data.admin-password}" | base64 --decode ; echo
    25  ```
    26  
    27  To access the Grafana UI, run the following command:
    28  
    29  ```shell
    30  kubectl port-forward -n promtail-loki-stack-system svc/promtail-grafana 3000:80
    31  ```
    32  
    33  ## How to rebuild it use helm
    34  
    35  Kubefile:
    36  
    37  ```shell
    38  FROM longhorn:v1.2.3
    39  
    40  CMD helm repo add grafana https://grafana.github.io/helm-charts && helm repo update
    41  
    42  CMD helm install --create-namespace --namespace fluentbit-loki-stack-system fluent-bit grafana/loki-stack --set fluent-bit.enabled=true,promtail.enabled=false,grafana.enabled=true,prometheus.enabled=true,prometheus.alertmanager.persistentVolume.enabled=false,prometheus.server.persistentVolume.enabled=false,loki.persistence.enabled=true,loki.persistence.storageClassName=longhorn,loki.persistence.size=50Gi
    43  ```
    44  
    45  run below command to build it
    46  
    47  ```shell
    48  sealer build -t {Your Image Name} -f Kubefile -m cloud .
    49  ```
    50  
    51  More parameters see [official document here](https://grafana.github.io/helm-charts)