Steps:

Create a VM:
- Log in to GCP Console.
- Navigate to the "Compute Engine" section.
- Click on "VM instances" and then "Create instance."
- Configure your VM with the desired settings (name, region, machine type, etc.).
- Click "Create."
Create a Custom Image:
- In the Google Cloud Console, go to "Compute Engine" > "Images."
- Click "Create image."
- Select the source disk of your configured VM.
- Fill in the image name and other settings, then click "Create."
Launch a New VM from the Custom Image:
- Go back to "VM instances" and click "Create instance."
- In the "Boot disk" section, select "Custom images" and choose your created image.
- Configure other settings as needed and click "Create" , this will create new VM Instance using existing image.
- Now click on External IP of both VM and compare them.

Steps:

Go to Firewall Rules:
- Log in to GCP Console.
- In the Google Cloud Console, navigate to "VPC network" > "Firewall rules".
- Click "Create firewall rule".
- Fill in the name, and select the target (e.g., "All instances in the network" or specific instances),Source IP ranges( Set to 0.0.0.0/0 for all IPs).
- Specify the protocols and ports to allow, such as TCP: 80 for HTTP.
- Click "Create".

Steps:

Create Instance Groups:
- Log in to GCP Console.
- In the Google Cloud Console, navigate to "Compute Engine" > "Instance groups".
- Click "Create instance group".
- Choose either a managed or unmanaged instance group and set it up with your desired VM instances.
- Add Instance group name, instance template, location, autoscaling, initialization period etc.
- To add instance template, click on Create New Instance template.
- Click Save and Continue and then click Create.
Set Up a Load Balancer:
- Go to "Network services" > "Load balancing."
- Click Create load balancer.
- Choose the type of load balancer (HTTP(S) for web traffic), public facing, global or single region deployment, load balancer generation and click Next.
- Add Name, Region, Network, configure the Frontend, Backend service by selecting your instance group.
- Set up health checks and create the load balancer.
- Add Routing rule(simple host and path rule).
- Click Create.

Steps:

Open Cloud Shell:
- Go to the Cloud Shell by clicking on the terminal icon in the top right corner which comes with the SDK pre-installed.
- Use gcloud commands to connect to terminal and click Authorize .
```
  gcloud auth list
  gcloud config list project
```
- Use gcloud commands to manage your VMs.
- Create a VM:
```
  gcloud compute instances create instance-ee --zone asia-south2-b
```
- Delete a VM:
```
  gcloud compute instances delete instance-ee --zone asia-south2-b
```

Steps:

Open Crontab:
- SSH into your VM and click Authorize.
- Open the crontab editor by typing-
```
  crontab-e
  crontab-l
```
Add a Cron Job:
- At the bottom of the crontab file, add the desired schedule and command. For example, run “hello world” every minute.
Save and Exit:
- Save your changes and exit the editor.

Steps:

Attach a Disk During VM Creation-
- Log in to GCP Console.
- From the Navigation Menu, go to Compute Engine > VM instances.
- Click on Create Instance.
- Set the name, region, and machine type for your instance.
- Scroll down to Advance Options > Disks and backups.
- Click Add new disk.
- Specify the disk name, type (e.g., SSD, standard persistent), and size.
- Click Save.
- To create a VM Instance with a disk, click Create.
- VM Instance should now be UP and running.
Attach a Disk After VM Creation
- Go to Compute Engine > VM instances.
- Click on the name of the VM Instance you want to attach the disk.
- On the VM instance page, scroll to the Disks section.
- Click Edit.
- In the Additional Disks section, click Add new disk or select an existing disk.
- Specify the name, disk source type, disk type, and size.
- Click Save twice.
- Here we can see the disks attached to the VM.

Navigate to the Snapshots Page-
- Log in to GCP Console.
- From the Navigate to Compute Engine > Snapshots.
Create a Snapshot-
- Click on Create Snapshot.
- Set a name for snapshot.
- In the Source disk section, select the disk from which you want to create a snapshot.
- Select any disk attached to a VM.
- Click Create to take the snapshot.
- Snapshot will be ready.
Restore a VM from a Snapshot (Disaster Recovery)-
- Go to Compute Engine > Disks.
- Click Create Disk.
- Set the name, location, and disk type.
- Under Disk Source Type, choose Snapshot.
- Select the snapshot you previously created.
- Click Create.
Attach the New Disk to a VM:
- Navigate, to Compute Engine > VM instances.
- Click on Create Instance.
- Set the name, region, and machine type for your instance.
- Scroll down to the Boot disk section.
- Click Change to configure the boot disk.
- Select Snapshot.
- Set snapshot name, disk type and size.
- Click on Select and then Create.
- VM will be create using snapshot as a disk.

Intermediate Tasks for Beginners using Compute Engine