How to download Google Compute Engine disk content? - neo4j

Question

I have linked a Persistent Volume to my Kubernetes Neo4j Replication Controller to store the DB data. Now I would like to download that data locally to run the production DB on my system. I can't find the way to download the Disk content. Can someone point me in the right direction?
Updates (Persistent Volume Creation with Kubernetes):
persistent-volume-db.json
{
"kind": "PersistentVolume",
"apiVersion": "v1",
"metadata": {
"name": "pv-db"
},
"spec": {
"capacity": {
"storage": "500Gi"
},
"accessModes": [
"ReadWriteMany"
],
"gcePersistentDisk": {
"pdName": "tuwa-db-data-disk",
"fsType": "ext4"
}
}
}
persistent-volume-claim-db.json
{
"kind": "PersistentVolumeClaim",
"apiVersion": "v1",
"metadata": {
"name": "pvc"
},
"spec": {
"accessModes": [
"ReadWriteMany"
],
"resources": {
"requests": {
"storage": "500Gi"
}
}
}
}
And then the usage:
neo4j-controller.json
{
"kind": "ReplicationController",
"apiVersion": "v1",
"metadata": {
"name": "neo4j-controller",
"labels": {
"name": "neo4j"
}
},
"spec": {
"replicas": 1,
"template": {
"metadata": {
"labels": {
"name": "neo4j"
}
},
"spec": {
"containers": [
{
"name": "neo4j",
"image": "neo4j/neo4j",
"ports": [
{
"name": "neo4j-server",
"containerPort": 7474
}
],
"volumeMounts": [
{
"mountPath": "/data/databases",
"name": "pv-db"
}
]
}
],
"volumes": [
{
"name": "pv-db",
"persistentVolumeClaim": {
"claimName": "pvc-db"
}
}
]
}
}
}
}

Answer 1

GCE's admin panel doesn't have a "download" button for persistent disks, but gcloud makes it easy to copy files from an instance to your local machine:
gcloud compute copy-files example-instance:~/REMOTE-DIR ~/LOCAL-DIR --zone us-central1-a
This will copy ~/REMOTE-DIR from a remote instance into ~/LOCAL-DIR on your machine. Just replace the directory names, example-instance with your instances name, and adjust your zone if necessary. More info here in the docs.

Answer 2

gcloud compute copy-files #has been deprecated
Please use gcloud compute scp instead. Note that gcloud compute scp does not have recursive copy on by default. To turn on recursion, use the --recurse flag.
gcloud compute scp --recurse example-instance:~/instance-1_path ~/locad_path --zone=us-central1-a
This will copy ~/instance-1_path from a remote compute instance into ~/local_path on your personal machine. Just replace the directory names, example-instance with your instances name, and adjust your zone if necessary.
Complete documentation of this SDK can be found here