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Deploy NebulaGraph cluster (with Kubectl)

1. Install cert-manager

kubectl apply -f https://github.com/cert-manager/cert-manager/releases/download/<release_version>/cert-manager.yaml

2. Install Nebula Operator

helm repo add nebula-operator https://vesoft-inc.github.io/nebula-operator/charts
helm repo update
helm install nebula-operator nebula-operator/nebula-operator --namespace=<namespace_name> --version=1.1.0

3. Install and start NebulaGraph cluster

Choose between the Enterprise and Community configuration files base on your license. Create a StorageClass or use an existing one in the k8s cluster. Edit the config with the proper storageClassName and run the command below:

kubectl create -f enterprise_edition.yaml
or
kubectl create -f community_edition.yaml

4. Connect to NebulaGraph databases

Once you've set up a NebulaGraph cluster using Nebula Operator on Kubernetes, you can connect to NebulaGraph databases both from inside the cluster and from external sources.

4.1. Connect to NebulaGraph databases from within a NebulaGraph cluster

Run the following command to check the IP of the Service:

$ kubectl get service -l app.kubernetes.io/cluster=<nebula>  #<nebula> is a variable value. Replace it with the desired name.
NAME                       TYPE        CLUSTER-IP     EXTERNAL-IP   PORT(S)                                          AGE
nebula-graphd-svc          ClusterIP   10.98.213.34   <none>        9669/TCP,19669/TCP,19670/TCP                     23h
nebula-metad-headless      ClusterIP   None           <none>        9559/TCP,19559/TCP,19560/TCP                     23h
nebula-storaged-headless   ClusterIP   None           <none>        9779/TCP,19779/TCP,19780/TCP,9778/TCP

Run the following commands to get the cluster ip and service port of the service:

cluster_ip=$(kubectl get service | grep nebula-graphd-svc | awk '/nebula-graphd-svc/ {print $3}')
service_port=$(kubectl get service | grep nebula-graphd-svc | awk '{print $5}' | cut -d',' -f1 | cut -d'/' -f1)

Run the following command to connect to the NebulaGraph database using the cluster ip and service port the -graphd-svc service above:

kubectl run -ti --image vesoft/nebula-console --restart=Never -- <nebula_console_name> -addr <cluster_ip>  -port <service_port> -u <username> -p <password>

For example:

kubectl run -ti --image vesoft/nebula-console --restart=Never -- nebula-console -addr 10.98.213.34  -port 9669 -u root -p vesoft

A successful connection to the database is indicated if the following is returned:

If you don't see a command prompt, try pressing enter.

(root@nebula) [(none)]>

4.2. Connect to NebulaGraph databases from outside a NebulaGraph cluster

Refer to the NebulaGraph Database Manual for more information.