How do you set up neo4j to work with Google Compute Engine?

Question

I\'m wondering how one would get neo4j to work with Google Compute Engine. Has anybody done this? What problems did you encounter?

Answer 1

the easiest and the safest way is to use docker neo4j image

and this is docker docs, to install and deploy on google compute engine

Answer 2

Here you go,

Basic Setup

• Install and setup gcloud
• Install py2neo
• Create your GCE Instance (https://console.developers.google.com/project/PROJECT_APPID/compute/instancesAdd) using image (debian-7-wheezy-v20141021, Debian GNU/Linux 7.7 (wheezy) amd64 built on 2014-10-21 or ANY)
• SSH your instance gcloud compute ssh INSTANCE_NAME --zone AVAILABLE_ZONES --> AVAILABLE_ZONES
• Download and Install neo4j in GCE - You may need to install java(Fix) and lsof (Fix: apt-get install lsof).

Configuration for GCE

• Configure server neo4j

• (Optional), Add neo4j https support

• Whitelist neo4j port 7474 (More on Networking and Firewalls)

• Add security username:password from github

  gcloud compute firewall-rules create neo4j --network default --allow tcp:7474

Play around

• Start neo4j server ./bin/neo4j start
• Check your running instances @ http://IP_ADDRESS:7474/

Once py2neo Installed and server started, try some pycode to test it

>> from py2neo.neo4j import GraphDatabaseService, CypherQuery
>> # Set up a link to the local graph database.
>> # When () left blank defaults to http://localhost:7474/db/data/
>> graph = GraphDatabaseService('http://IP_ADDRESS:7474/db/data/')
>> CypherQuery(graph, "CREATE (n {name:'Example'}) RETURN n;").execute()

Above python setup / code, you can use it in GAE as well.

References

• Check pricing of GCE.
• py2neo Cookbook
• Compute Instances
• gcloud compute

Edit: Appengine + Neo4j

from py2neo import neo4j
GRAPH_DB = neo4j.GraphDatabaseService(
        'http://uname:psswd@localhost:7474/db/data/')
if IS_PROD:
    GRAPH_DB = neo4j.GraphDatabaseService(
        'http://uname:psswd@host:port/db/data/')

def _execute(query):
    """Execute all neo4j queries and return list of Record objects.

    Returns:
      Returns list of Record objects.
    """
    try:
        result = neo4j.CypherQuery(GRAPH_DB, query).execute()
        # logging.info(result.data)
        return result
    except neo4j.CypherError as error:
        logging.error(error.exception)
    except DeadlineExceededError as dead:
        logging.warn(dead)
    except urlfetch_errors.InternalTransientError as tra_error:
        logging.warn(tra_error)
    except httplib.HTTPException as exp:
        logging.warn(exp)
    except neo4j.http.SocketError as soc:
        logging.warn(soc)