Google Cloud VM IP Address Change Scripts

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0.0 Description

This script supports changing the external IP address of a virtual machine (VM) on Google Cloud without affecting the data of the original VM.

PS: There will be a short service interruption when changing the ip.

1.0 Requirements

1.1 Google Cloud SDK is installed.

The gcloud command line tool needs to be installed.

Test:

gcloud -v

https://github.com/Cocean001/change_gcloud_vm_ip/blob/main/screenshots/1.1-gcloud.png?raw=true

1.2 Signing in to a Google Cloud Account

Make sure you are already logged into your Google Cloud account via gcloud (and of course you need to have a Google Cloud account first).

1.3 Create a VM and network rules

A VM virtual machine can be created manually. It can also be created on the command line using gcloud. Here is a sample configuration for creating it from the command line:

• VM name: my-vm-name
• VM system: debian-10
• VM type: n1-standard-1
• Firewall rules: Allow all inbound traffic

# Create the virtual machine
gcloud compute instances create my-vm-name --image-family debian-10 --image-project debian-cloud --machine-type n1-standard-1

# Set up firewall rules
gcloud compute firewall-rules create my-vm-name-allow-all --direction=INGRESS --priority=1000 --network=default --action=ALLOW --rules=all - - -source-ranges=0 - -source-ranges=0 - -source-ranges=0 - -source-ranges=0 - -source-ranges=0 -source-ranges=0.0.0.0/0 --target-tags=my-vm-name

2.0 Usage

2.1 Downloading the script locally

curl -O https://raw.githubusercontent.com/Cocean001/change_gcloud_vm_ip/main/change_ip.sh && chmod +x change_ip.sh

Or:

wget https://raw.githubusercontent.com/Cocean001/change_gcloud_vm_ip/main/change_ip.sh && chmod +x change_ip.sh

2.2 Open the script and change a few settings

Description:

• VM_NAME: the virtual machine name of the ip to be modified.
• STATIC_IP_NAME: temporary name of the new IP, can be any value.
• REGION: which region you want to assign the VM to. You can refer to list of optional regions

2.3 Run the script

bash change_ip.sh

Licence

MIT

Others

• This script is for learning and communication purposes only. Use it in a formal environment at your own risk.