Deploy Dashboard Community Edition

This topic will describe how to deploy NebulaGraph Dashboard in detail.

To download and compile the latest source code of Dashboard, follow the instructions on the nebula dashboard GitHub page.

Prerequisites

Before you deploy Dashboard, you must confirm that:

• The NebulaGraph services are deployed and started. For more information, see NebulaGraph Database Manual.

• Before the installation starts, the following ports are not occupied.

  • 9200

  • 9100

  • 9090

  • 8090

  • 7003

• The node-exporter is installed on the machines to be monitored. For details on installation, see Prometheus document.

Steps

1. Download the tar packagenebula-dashboard-3.4.0.x86_64.tar.gz as needed.

2. Run tar -xvf nebula-dashboard-3.4.0.x86_64.tar.gz to decompress the installation package.

3. Modify the config.yaml file in nebula-dashboard.

The configuration file contains the configurations of four dependent services and configurations of clusters. The descriptions of the dependent services are as follows.

Service	Default port	Description
nebula-http-gateway	8090	Provides HTTP ports for cluster services to execute nGQL statements to interact with the NebulaGraph database.
nebula-stats-exporter	9200	Collects the performance metrics in the cluster, including the IP addresses, versions, and monitoring metrics (such as the number of queries, the latency of queries, the latency of heartbeats, and so on).
node-exporter	9100	Collects the source information of nodes in the cluster, including the CPU, memory, load, disk, and network.
prometheus	9090	The time series database that stores monitoring data.

The descriptions of the configuration file are as follows.

port: 7003   # Web service port.
gateway:
  ip: hostIP   # The IP of the machine where the Dashboard is deployed.
  port: 8090
  https: false  # Whether to enable HTTPS.
  runmode: dev  # Program running mode, including dev, test, and prod. It is used to distinguish between different running environments generally.
stats-exporter:
  ip: hostIP   # The IP of the machine where the Dashboard is deployed.
  nebulaPort: 9200
  https: false  # Whether to enable HTTPS.
node-exporter:
  - ip: nebulaHostIP_1 # The IP of the machine where the NebulaGraph is deployed.
    port: 9100
    https: false # Whether to enable HTTPS.
# - ip: nebulaHostIP_2
#   port: 9100
#   https: false
prometheus:
  ip: hostIP    # The IP of the machine where the Dashboard is deployed.
  prometheusPort: 9090
  https: false  # Whether to enable HTTPS.
  scrape_interval: 5s  # The interval for collecting the monitoring data, which is 1 minute by default.
  evaluation_interval: 5s  # The interval for running alert rules, which is 1 minute by default.
# Cluster node info
nebula-cluster:
  name: 'default' # Cluster name
  metad:
    - name: metad0
      endpointIP: nebulaMetadIP  # The IP of the machine where the Meta service is deployed.
      port: 9559
      endpointPort: 19559
  # - name: metad1
  #   endpointIP: nebulaMetadIP
  #   port: 9559
  #   endpointPort: 19559  
  graphd:
    - name: graphd0
      endpointIP: nebulaGraphdIP  # The IP of the machine where the Graph service is deployed.
      port: 9669
      endpointPort: 19669
  # - name: graphd1
  #   endpointIP: nebulaGraphdIP
  #   port: 9669
  #   endpointPort: 19669  
  storaged:
    - name: storaged0
      endpointIP: nebulaStoragedIP  # The IP of the machine where the Storage service is deployed.
      port: 9779
      endpointPort: 19779
  # - name: storaged1
  #   endpointIP: nebulaStoragedIP
  #   port: 9779
  #   endpointPort: 19779  

4. Run ./dashboard.service start all to start the services.

Deploy Dashboard with Docker Compose

If you are deploying Dashboard using docker, you should also modify the configuration file config.yaml, and then run docker-compose up -d to start the container.

note

If you change the port number in config.yaml, the port number in docker-compose.yaml needs to be consistent as well.

Run docker-compose stop to stop the container.

Manage services in Dashboard

You can use the dashboard.service script to start, restart, stop, and check the Dashboard services.

sudo <dashboard_path>/dashboard.service
[-v] [-h]
<start|restart|stop|status>  <prometheus|webserver|exporter|gateway|all>

Parameter	Description
dashboard_path	Dashboard installation path.
-v	Display detailed debugging information.
-h	Display help information.
start	Start the target services.
restart	Restart the target services.
stop	Stop the target services.
status	Check the status of the target services.
prometheus	Set the prometheus service as the target service.
webserver	Set the webserver Service as the target service.
exporter	Set the exporter Service as the target service.
gateway	Set the gateway Service as the target service.
all	Set all the Dashboard services as the target services.

note

To view the Dashboard version, run the command ./dashboard.service -version.

Next to do

Connect to Dashboard