Creating a VM instance in GCP - Visual Walkthrough

Process Flow - Creating a VM instance

Start

↓

Choose VM specs

↓

Configure network & disk

↓

Run creation command

↓

VM instance created

↓

Access VM or manage

↓

End

This flow shows the steps to create a VM instance: choose specs, configure settings, run the command, then access the VM.

Execution Sample

GCP

gcloud compute instances create my-vm \
  --zone=us-central1-a \
  --machine-type=e2-medium \
  --image-family=debian-11 \
  --image-project=debian-cloud

This command creates a VM named 'my-vm' in the specified zone with a medium machine type and Debian 11 image.

Process Table

Step	Action	Input/Command	Result	Notes
1	Choose VM name and zone	Name: my-vm, Zone: us-central1-a	VM name and zone set	Preparing VM details
2	Select machine type	e2-medium	Machine type set	Defines CPU and memory
3	Select OS image	Debian 11 from debian-cloud	Image selected	OS for VM
4	Run creation command	gcloud compute instances create my-vm --zone=us-central1-a --machine-type=e2-medium --image-family=debian-11 --image-project=debian-cloud	VM instance creation started	Command sent to GCP
5	GCP processes request	N/A	VM instance created successfully	VM ready to use
6	Access VM	gcloud compute ssh my-vm --zone=us-central1-a	Connected to VM	SSH access established
7	End	N/A	Process complete	VM ready for tasks

💡 VM instance created and accessible via SSH, process complete.

Status Tracker

Variable	Start	After Step 1	After Step 2	After Step 3	After Step 4	After Step 5	Final
VM Name	None	my-vm	my-vm	my-vm	my-vm	my-vm	my-vm
Zone	None	us-central1-a	us-central1-a	us-central1-a	us-central1-a	us-central1-a	us-central1-a
Machine Type	None	None	e2-medium	e2-medium	e2-medium	e2-medium	e2-medium
Image	None	None	None	Debian 11	Debian 11	Debian 11	Debian 11
VM Status	Not created	Not created	Not created	Not created	Creating	Running	Running

Key Moments - 3 Insights

Why do we specify the zone before creating the VM?

The zone tells GCP where to place the VM physically. Without it, GCP cannot know where to create the VM. See execution_table step 1.

What happens if the machine type is not specified?

GCP uses a default machine type, which might not fit your needs. Specifying it ensures the VM has the right CPU and memory. See execution_table step 2.

Why do we need to specify the image family and project?

This tells GCP which operating system to install on the VM. Without it, the VM won't have an OS to run. See execution_table step 3.

Visual Quiz - 3 Questions

Look at the execution_table, what is the VM status after step 4?

A Running

B Not created

C Creating

D Deleted

💡 Hint

Check the 'VM Status' variable in variable_tracker after step 4.

At which step does the VM become accessible via SSH?

A Step 6

B Step 5

C Step 3

D Step 7

💡 Hint

Look at the 'Action' and 'Result' columns in execution_table for SSH access.

If you change the machine type to 'e2-small', which step in the execution_table changes?

A Step 1

B Step 2

C Step 4

D Step 6

💡 Hint

Machine type is set in step 2 according to execution_table.

Concept Snapshot

Creating a VM instance in GCP:
- Use 'gcloud compute instances create' command
- Specify VM name and zone
- Choose machine type (CPU & memory)
- Select OS image family and project
- Run command to create VM
- Access VM via SSH after creation

Full Transcript

To create a VM instance in Google Cloud Platform, you start by choosing a name and zone where the VM will live. Then, select the machine type which defines the CPU and memory size. Next, pick the operating system image by specifying the image family and project. Run the 'gcloud compute instances create' command with these details. GCP processes the request and creates the VM. Once created, you can connect to the VM using SSH. This process ensures your VM is ready to run your applications.