Graphhopper Terraform GCP

What is Graphhopper?

Here will deploy an open source project from Graphhopper, namely the GraphHopper Routing Engine, check the repo.

Instance specification:

• 4 VPCs and 16 GB Memory
• asia-southeast2

Tools

• Graphhopper 3.0
• Packer
• Terraform
• Google Cloud Platform
  • Cloud Image
  • Compute Engine

Usage

Replace <service-account.json> and <project_id> with your own. Provide tags for <network-tags>, for example to open ssh or http ports.

Setup Service Account

Create Service Account on GCP with At least Compute Instance Admin (v1) & Service Account User roles.

Build image

Packer

packer build -var "time=$(date '+%Y%m%d%H%M%S')" packer-graphhopper.json

this command will create temporary VM instance and running the command shell, the output from this process is image whit name: graphhopper-v3-[date]

Output:

• image

Deploy

Terraform

terraform apply -auto-approve

this command will deploy graphhopper ready to use. -auto-approve will waive the prompt approval.

Output:

• Instance Template with Image that created from Packer
• Instance Group with 1 member
• Compute Engine as member of group

Note

This instance will not have an External IP Address, so create External Load Balancer on Cloud Load Balancer and assign it with Instance Group that just created before.