gcloud CLI commands Cheatsheet

This Article consists of gcloud commands which can be handy when working on google cloud shell to manage/automate the infrastructure components. Official documentation can be found at gcloud official doc

All the feedbacks and suggestions are most welocome.

Get going with the gcloud

Initialize, authorize, and configure gcloud
```
gcloud init
```
Display version + installed components
```
gcloud version
```

Install specific components

gcloud components install COMPONENT_NAME

Update your Cloud SDK to the latest version
```
gcloud components update
```
Set a default Google Cloud project to work on
```
gcloud config set project
```

Display current gcloud environment details

gcloud info

* For apt-get and yum, see https://cloud.google.com/sdk/install

Google Compute Engine commands

List zones in Region:

  gcloud  compute zones list | grep us-central1

Set default zone for new vm:

  gcloud  config set compute/zone us-central1-c

To create a new VM:

  gcloud  compute instances create "my-vm-2" \
    --machine-type "n1-standard-1" \
    --image-project "debian-cloud" \
    --image-family "debian-10" \
    --subnet "default"

To create a Cloud Storage Bucket:
```
  gsutil mb -l US gs://$PROJECT_ID
```
To list the items in Cloud Storage Bucket:
```
  gsutil ls gs://$PROJECT_ID
```
To list the set project property in the core section:
```
gcloud config list $PROJECT_ID
```
To list gcloud named configurations:
```
gcloud config configurations list
```

To create a new named configuration:

gcloud config configurations create my-second-config

To activate sepcific named configuration:

gcloud config configurations activate my-default-configuration

To list the properties of the specified section using the active configuration:
```
gcloud config list
```
To see your currently available accounts used for gcloud authentication:
```
gcloud config list account
```

To describe a named configuration by listing its properties:

gcloud config configurations describe my-second-configuration

To display all Compute Engine instances in a project:
```
gcloud compute instances list
```
To create Compute Engine virtual machine instances:
```
gcloud compute instances create
```
To display all data associated with a Compute Engine virtual machine instance:
```
gcloud compute instances describe my-first-instance-from-gcloud
```

To delete Compute Engine virtual machine instances:

gcloud compute instances delete my-first-instance-from-gcloud

To display all Google Compute Engine zones in a project:
```
gcloud compute zones list
```
To display all Google Compute Engine regions in a project:
```
gcloud compute regions list
```
To display all Google Compute Engine machine types in a project:
```
gcloud compute machine-types list
```
To display all Google Compute Engine machine types in Zone asia-southeast2-b:
```
gcloud compute machine-types list --filter zone:asia-southeast2-b
```

To filter the Google Compute Engine machine types in multiple zones:

gcloud compute machine-types list --filter "zone:(asia-southeast2-b asia-southeast2-c)"

To display all data associated with a Compute Engine region:
```
gcloud compute regions describe $REGION
```
To list Google Compute Engine instance templates:
```
gcloud compute instance-templates list
```

To create a Compute Engine virtual machine instance template:

gcloud compute instance-templates create instance-template-from-command-line

To delete one or more Compute Engine virtual machine instance templates:

gcloud compute instance-templates delete instance-template-from-command-line

To display all data associated with a Google Compute Engine virtual machine instance template:
```
gcloud compute instance-templates describe my-instance-template-with-custom-image
```
To list Google Compute Engine managed instance groups:
```
gcloud compute instance-groups managed list
```

To delete Compute Engine managed instance groups:

gcloud compute instance-groups managed delete my-managed-instance-group

To create a Compute Engine managed instance group:

gcloud compute instance-groups managed create my-mig --zone us-central1-a --template my-instance-template \ 
--size 1

To set autoscaling parameters of a managed instance group:

gcloud compute instance-groups managed set-autoscaling my-mig --max-num-replicas=2 --zone us-central1-a

To stop autoscaling a managed instance group:

gcloud compute instance-groups managed stop-autoscaling my-mig --zone us-central1-a

To set managed instance group size:

gcloud compute instance-groups managed resize my-mig --size=1 --zone=us-central1-a

To recreate instances managed by a managed instance group:

gcloud compute instance-groups managed recreate-instances my-mig --instances=my-mig-85fb --zone us-central1-a

To delete Compute Engine managed instance groups:

gcloud compute instance-groups managed delete my-managed-instance-group --region=us-central1

Troubleshooting instance ssh issue

    recommendations, rerun the ssh command with the --troubleshoot option.

    gcloud compute ssh instance-1 --project=smitis-dev --zone=us-central1-a --troubleshoot

    Or, to investigate an IAP tunneling issue:

    gcloud compute ssh instance-1 --project=smitis-dev --zone=us-central1-a --troubleshoot --tunnel-through-iap

Google App Engine commands

cd default-service
gcloud app deploy
gcloud app services list
gcloud app versions list
gcloud app instances list
gcloud app deploy --version=v2
gcloud app versions list
gcloud app versions list --hide-no-traffic ==> DO not show version receiving no traffic.
gcloud app browse
gcloud app browse --version 20210215t072907
gcloud app deploy --version=v3 --no-promote
gcloud app browse --version v3
gcloud app services set-traffic split=v3=.5,v2=.5
gcloud app services set-traffic splits=v3=.5,v2=.5
watch curl https://melodic-furnace-304906.uc.r.appspot.com/
gcloud app services set-traffic --splits=v3=.5,v2=.5 --split-by=random
cd ../my-first-service/
gcloud app deploy
gcloud app browse --service=my-first-service
gcloud app services list
gcloud app regions list
gcloud app browse --service=my-first-service --version=20210215t075851
gcloud app browse --version=v2
gcloud app open-console --version=v2
gcloud app versions list --hide-no-traffic

Google Kubernetes Engine commands

gcloud config set project my-kubernetes-project-304910
gcloud container clusters get-credentials my-cluster --zone us-central1-c --project my-kubernetes-project-304910
kubectl create deployment hello-world-rest-api --image=in28min/hello-world-rest-api:0.0.1.RELEASE
kubectl get deployment
kubectl expose deployment hello-world-rest-api --type=LoadBalancer --port=8080
kubectl get services
kubectl get services --watch
curl 35.184.204.214:8080/hello-world
kubectl scale deployment hello-world-rest-api --replicas=3
gcloud container clusters resize my-cluster --node-pool default-pool --num-nodes=2 --zone=us-central1-c
kubectl autoscale deployment hello-world-rest-api --max=4 --cpu-percent=70
kubectl get hpa
kubectl create configmap hello-world-config --from-literal=RDS_DB_NAME=todos
kubectl get configmap
kubectl describe configmap hello-world-config
kubectl create secret generic hello-world-secrets-1 --from-literal=RDS_PASSWORD=dummytodos
kubectl get secret
kubectl describe secret hello-world-secrets-1
kubectl apply -f deployment.yaml
gcloud container node-pools list --zone=us-central1-c --cluster=my-cluster
kubectl get pods -o wide
kubectl set image deployment hello-world-rest-api hello-world-rest-api=in28min/hello-world-rest-api:0.0.2.RELEASE
kubectl get services
kubectl get replicasets
kubectl get pods
kubectl delete pod hello-world-rest-api-58dc9d7fcc-8pv7r
kubectl scale deployment hello-world-rest-api --replicas=1
kubectl get replicasets
gcloud projects list
kubectl delete service hello-world-rest-api
kubectl delete deployment hello-world-rest-api
gcloud container clusters delete my-cluster --zone us-central1-c
kubectl create deployment hello-world-rest-api --image=in28min/hello-world-rest-api:0.0.1.RELEASE

Create GKE cluster using below gcloud command:

  gcloud beta container clusters create test-cluster-1 \
   --zone=us-central1-a \
   --num-nodes=3 \
   --machine-type=n1-standard-1 \
   --disk-size=100 \
   --disk-type=pd-standard \
   --image-type=COS \
   --enable-autorepair \
   --enable-autoupgrade \
   --enable-autoscaling \
   --max-nodes=3 \
   --min-nodes=0

Google IAM commands

gcloud compute project-info describe
gcloud auth list
gcloud projects get-iam-policy glowing-furnace-304608
gcloud projects add-iam-policy-binding glowing-furnace-304608 --member=user:in28minutes@gmail.com --role=roles/storage.objectAdmin
gcloud projects remove-iam-policy-binding glowing-furnace-304608 --member=user:in28minutes@gmail.com --role=roles/storage.objectAdmin
gcloud iam roles describe roles/storage.objectAdmin
gcloud iam roles copy --source=roles/storage.objectAdmin --destination=my.custom.role --dest-project=glowing-furnace-304608

Cloud SQL

gcloud sql connect my-first-cloud-sql-instance --user=root --quiet
gcloud config set project glowing-furnace-304608
gcloud sql connect my-first-cloud-sql-instance --user=root --quiet
- use todos
- create table user (id integer, username varchar(30) );
- describe user;
- insert into user values (1, 'Ranga');
- select * from user

Cloud BigTable

bq show bigquery-public-data:samples.shakespeare
gcloud --version
cbt listinstances -project=glowing-furnace-304608
echo project = glowing-furnace-304608 > ~/.cbtrc
cat ~/.cbtrc
cbt listinstances

Pub/Sub

gcloud config set project glowing-furnace-304608
gcloud pubsub topics create topic-from-gcloud
gcloud pubsub subscriptions create subscription-gcloud-1 --topic=topic-from-gcloud
gcloud pubsub subscriptions create subscription-gcloud-2 --topic=topic-from-gcloud
gcloud pubsub subscriptions pull subscription-gcloud-2
gcloud pubsub subscriptions pull subscription-gcloud-1
gcloud pubsub topics publish topic-from-gcloud --message="My First Message"
gcloud pubsub topics publish topic-from-gcloud --message="My Second Message"
gcloud pubsub topics publish topic-from-gcloud --message="My Third Message"
gcloud pubsub subscriptions pull subscription-gcloud-1 --auto-ack
gcloud pubsub subscriptions pull subscription-gcloud-2 --auto-ack
gcloud pubsub topics list
gcloud pubsub topics delete topic-from-gcloud
gcloud pubsub topics list-subscriptions my-first-topic

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