Cloud Shell and gcloud CLI in GCP - Step-by-Step Execution

Process Flow - Cloud Shell and gcloud CLI

Open Cloud Shell

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Cloud Shell Terminal Ready

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Type gcloud command

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gcloud CLI processes command

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Command executed on GCP

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Output shown in Cloud Shell

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User reviews output or runs next command

This flow shows how a user opens Cloud Shell, types a gcloud command, which is processed and executed on Google Cloud, then the output is shown back in Cloud Shell.

Execution Sample

GCP

gcloud compute instances list

This command lists all the virtual machine instances in the current Google Cloud project.

Process Table

Step	Action	Input/Command	Process	Output/Result
1	Open Cloud Shell	N/A	Cloud Shell terminal starts with pre-configured environment	Terminal ready with prompt
2	Type command	gcloud compute instances list	Command entered in terminal	Command sent to gcloud CLI
3	gcloud CLI processes	gcloud compute instances list	CLI authenticates user and checks project	Validates credentials and project
4	Execute command	List VM instances	Request sent to Google Cloud Compute API	API returns list of VM instances
5	Display output	List of VM instances	Cloud Shell terminal prints output	Table of VM instances shown
6	User reviews output	N/A	User reads the list	User sees VM names, zones, statuses
7	End	N/A	No further commands	Session remains open for next command

💡 User stops entering commands or closes Cloud Shell; session remains active until closed.

Status Tracker

Variable	Start	After Step 2	After Step 3	After Step 4	After Step 5	Final
Command Input	None	gcloud compute instances list	gcloud compute instances list	gcloud compute instances list	gcloud compute instances list	None
Authentication Status	Not authenticated	Not authenticated	Authenticated	Authenticated	Authenticated	Authenticated
API Response	None	None	None	List of VM instances	List of VM instances	List of VM instances
Output Displayed	None	None	None	None	Table of VM instances	Table of VM instances

Key Moments - 3 Insights

Why does the gcloud CLI need to authenticate before running the command?

Because the CLI needs permission to access your Google Cloud resources, it authenticates first as shown in step 3 of the execution_table.

What happens if there are no VM instances in the project?

The API response in step 4 would be an empty list, so the output displayed in step 5 would show no instances found.

Does Cloud Shell run commands locally on your computer?

No, Cloud Shell runs commands in a Google-managed virtual machine in the cloud, as shown in step 1 and 4.

Visual Quiz - 3 Questions

Look at the execution_table, what is the output shown at step 5?

A Empty terminal

B Authentication error message

C Table of VM instances

D Command prompt only

💡 Hint

Refer to the 'Output/Result' column in row 5 of the execution_table.

At which step does the gcloud CLI authenticate the user?

A Step 3

B Step 2

C Step 4

D Step 5

💡 Hint

Check the 'Process' column in the execution_table for authentication details.

If the user closes Cloud Shell after step 6, what happens to the session?

A Session remains active indefinitely

B Session closes and all data is lost

C Session remains open for next command

D Session is paused and resumes later

💡 Hint

Look at the 'exit_note' in the execution_table for session behavior.

Concept Snapshot

Cloud Shell is a browser-based terminal with gcloud CLI pre-installed.
You type gcloud commands to manage Google Cloud resources.
Commands authenticate your identity before running.
Output appears directly in Cloud Shell terminal.
Session stays active until you close it.

Full Transcript

Cloud Shell is a web-based terminal that lets you run gcloud CLI commands without installing anything locally. When you open Cloud Shell, you get a ready-to-use terminal connected to your Google Cloud account. You type commands like 'gcloud compute instances list' to see your virtual machines. The gcloud CLI first authenticates you to ensure you have permission. Then it sends your command to Google Cloud services, which respond with data. This data is shown back in the terminal. You can keep running commands until you close Cloud Shell, which ends your session.