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How to get Ethereum Full Node with PoS on GCP(Google Cloud Platform)
This section describes how to launch and connect to Ethereum Full Node with PoS in a Google Compute environment using the available Cloud Launcher offering.
- Open Ethereum Full Node with PoS listing on GCP Marketplace
- Click Launch.
- Select a zone where you want to launch the VM(such as us-east1-)
- Optionally change the number of cores and amount of memory. ( This defaults to 2 vCPUs and 4 GB ram)
- Optionally change the boot disk type and size. (This defaults to 'Standard Persistent Disk' and size 220 GB respectively. For zone, you must select us-central1-a . The VM can be deployed only in us-central1-a)
- Optionally change the network name and subnetwork names. Be sure that whichever network you specify has ports 22 (for ssh) and 3389 (for RDP) exposed.
- Click Deploy when you are done.
Ethereum Full Node with PoS will begin deploying. - A summary page displays when the compute engine is successfully deployed. Click on the Instance link to go to the instance page .
- On the instance page, click on the "SSH" button, select "Open in browser window".
- This will open SSH window in a browser.
- Run below command to set the password for "ubuntu" user
- Now the password for ubuntu user is set, you can connect to the VM's desktop environment from any local windows machine using RDP or linux machine using Remmina.
- To connect using RDP via Windows machine, first note the external IP of the VM from VM details page as highlighted below
- Then From your local windows machine, goto "start" menu , in the search box type and select "Remote desktop connection"
- In the "Remote Desktop connection" wizard, paste the external ip and click connect
- This will connect you to the VM's desktop environment. Provide "ubuntu" as the userid and the password set in step 6 to authenticate. Click OK
- Now you are connected to out of box Ethereum Full Node with PoS environment via Windows machines.
- To connect using RDP via Linux machine, first note the external IP of the VM from VM details page,then from your local Linux machine, goto menu , in the search box type and select "Remmina".
Note: If you don't have Remmina installed on your Linux machine, first Install Remmina as per your linux distribution. - In the "Remmina Remote Desktop Client" wizard, select the RDP option from dropdown and paste the external ip and click enter.
- This will connect you to the VM's desktop environment. Provide "ubuntu" as the userid and the password set in step 6 to authenticate. Click OK
- Now you are connected to out of box Ethereum Full Node with PoS environment via Linux machine.
sudo passwd ubuntu
- Ethereum Full Node directories:
- Monitoring and managing node sync process :
- Tracking sync progress
- Accessing Metamask Ethereum wallet
- Click on the Metamask icon, complete the configuration by following the instructions.
Once the Metamask is configured, you wil see Metamask is running on Ethereum Mainnet Network. - If you want to connect Metamask on localhost, select localhost 8545 from Metamask Network dropdown. You should be able to connect to localhost as shown:
- If you don't see localhost and other testnetwork options under network dropdown, please click on show/hide link as shown below-
- It will take you to setting menu. Here you enable show test network option and save the changes.
- Close the setting page and reopen network dropdown. Now you should be able to see all the test networks.
Ethereum home directory location is /home/ubuntu/ethereum
Data directory location is /home/ubuntu/ethereum/datadir
The VM automatically starts the sync process on startup. To verify if the sync is in progress, run below commands
ps -ef|grep gethIf sync is in progress , you will see the below highlighted process running
You can also verify the sync process by monitoring the sync log as shown below
tail -f /var/log/cloud-init-output.log 
You can monitor the lighthouse logs by running -
Note: If you encounter JWT authorization error or connection refused error while running the below command , please follow Lighthouse Troubleshooting Guide. to fix them.
sudo journalctl -f -u lighthousebeacon.service -o cat | ccze -A
To stop the sync process, simply run below command :
sudo killall -HUP geth 
To restart the sync process, run below command .
Note: Make sure below command is executed from terminal inside Remote desktop GUI to avoid process termination
sudo nohup geth --http --http.addr "0.0.0.0" --http.port "8545" --http.corsdomain "*" --config /home/ubuntu/ethereum/eth_config.toml >> /var/log/cloud-init-output.log 2>&1 &
You can track the sync progress by attaching to the running geth console and running the monitoring script as shown below . Note that if the progress is shown 99% then the node is mostly synced:
sudo geth attach --datadir /home/ubuntu/ethereum/datadir/
this will connect to the console, then run
loadScript("/home/ubuntu/ethereum/sync_status.js")
The VM comes with Metamask the most popular Ethereum wallet , preinstalled in Firefox browser.
Connect to the VM via Remote desktop , open the Firefox Browser and you will see metamask plugin in the browser
