This chapter describes how to launch a single instance from an image on GCP.
Create a firewall rule to be able to access your instance when it is launched:
gcloud compute firewall-rules create allow-neo4j-bolt-https \ --allow tcp:7473,tcp:7687 \ --source-ranges 0.0.0.0/0 \ --target-tags neo4j
It allows traffic on port
7473 (HTTPS for Neo4j Browser) and
7687 (Bolt protocol for clients to work with the database).
--source-ranges provided allows the entire Internet to contact your new instance.
--target-tags specifies that this rule applies only to VMs tagged
When you launch your instance, you will have to apply that tag to it.
You launch the instance by using the following command:
gcloud config set project my-project-id gcloud compute instances create my-neo4j-instance \ --image neo4j-enterprise-1-3-4-9-apoc \ --tags neo4j \ --image-project launcher-public
The first line sets your project configuration to ensure you know where you are launching your instance.
The second line launches an image found in the provided public project.
The image name
neo4j-enterprise-1-3-4-9-apoc corresponds to an Ubuntu-based image that contains Neo4j 1:3.3.9, with the APOC plugin.
--tags argument allows you to configure the correct network permissions.
By default, Google blocks all external access to the network services unless you open them.
When the launch is successful, you get the following result:
Created [https://www.googleapis.com/compute/v1/projects/testbed-187316/zones/us-east1-b/instances/my-neo4j-instance]. NAME ZONE MACHINE_TYPE PREEMPTIBLE INTERNAL_IP EXTERNAL_IP STATUS my-neo4j-instance us-east1-b n1-standard-1 10.142.0.3 188.8.131.52 RUNNING
https://[External_IP]:7473 and log in with the username
neo4j and password
You will be prompted to change the password immediately.
Because you do not have a hostname or a valid SSL certificate configured by default, your browser will warn you that the certificate is not trusted. You can configure the certificate later.
You can run the following command to SSH into the instance:
gcloud compute ssh my-neo4j-instance
Inside the VM, you can check the status of the
$ sudo systemctl status neo4j ● neo4j.service - Neo4j Graph Database Loaded: loaded (/etc/systemd/system/neo4j.service; enabled; vendor preset: enabled) Active: active (running) since Wed 2018-03-14 11:19:56 UTC; 15min ago Main PID: 1290 (pre-neo4j.sh) Tasks: 46 Memory: 325.7M CPU: 20.690s CGroup: /system.slice/neo4j.service ├─1290 /bin/bash /etc/neo4j/pre-neo4j.sh └─1430 /usr/bin/java -cp /var/lib/neo4j/plugins:/etc/neo4j:/usr/share/neo4j/lib/*:/var/lib/neo4j/plugins/* -server -XX:+UseG1GC
For details on internals of Google VMs, including how to stop and start system services, configure Neo4j from the VM, etc., consult Section 3.1, “Neo4j cloud VMs”.
You can run the following command to delete your instance:
gcloud compute instances delete my-neo4j-instance