Opening port 22 (One time only)
Before you SSH to a VM, you must open port 22 within the Security Groups
Go to Project > Compute > Access & Security and Create Security Group
Name the Security Group ssh
Next click Manage Rules on the ssh Security Group
Click Add Rule
Pull down the Rule and choose SSH
The default CIDR allows connections from anywhere. Adjust as necessary for your use-case.
You’re all set!
Any VM with the SSH Security Group attached will openly receive ingress (incoming) communication on Port 22
Edit a VM's Security Groups
To attach the security group, go to Project > Compute > Instances and pull down the instance menu to Edit Security Groups
Remember to add the security groups when booting instances, and save time!
Apply the new ssh Security Group and click Save
The port will be open almost immediately (no reboot required).