jasdeepkhalsa · February 27, 2021 18:13 · Feb 27, 2021 · Feb 27, 2021 · Feb 27, 2021 · Feb 27, 2021
diff --git a/gcp.sh b/gcp.sh
@@ -18,6 +18,9 @@ gcloud compute instances create nucleus-jumphost --machine-type f1-micro --zone
 # Create a Kubernetes cluster with a specific machine-type (if --num-nodes are omitted, defaults to 3)
 gcloud container clusters create my-cluster --machine-type n1-standard-1 --zone us-east1-b --num-nodes 2
 
+# Get info on the cluster, control plane IP, KubeDNS, metrics etc.
+kubectl cluster-info
+
 # Authenticate the Kubernetes cluster
 gcloud container clusters get-credentials my-cluster --zone us-east1-b
 

diff --git a/gcp.sh b/gcp.sh
@@ -15,8 +15,8 @@ gcloud config set compute/zone us-east1-b
 gcloud compute instances create nucleus-jumphost --machine-type f1-micro --zone us-east1-b
 
 ## Create a Kubernetes service cluster
-# Create a Kubernetes cluster with a specific machine-type
-gcloud container clusters create my-cluster --machine-type n1-standard-1 --zone us-east1-b
+# Create a Kubernetes cluster with a specific machine-type (if --num-nodes are omitted, defaults to 3)
+gcloud container clusters create my-cluster --machine-type n1-standard-1 --zone us-east1-b --num-nodes 2
 
 # Authenticate the Kubernetes cluster
 gcloud container clusters get-credentials my-cluster --zone us-east1-b

diff --git a/gcp.sh b/gcp.sh
@@ -46,6 +46,9 @@ kubectl rollout status deployment/<deployment>
 # View the rollout history
 kubectl rollout history deployment/<deployment>
 
+# See which version of a deployment is in use
+curl -ks https://`kubectl get svc <frontend> -o=jsonpath="{.status.loadBalancer.ingress[0].ip}"`/version
+
 # See which version of a container image is deployed to a pod
 kubectl get pods -o jsonpath --template='{range .items[*]}{.metadata.name}{"\t"}{"\t"}{.spec.containers[0].image}{"\n"}{end}'
 

diff --git a/gcp.sh b/gcp.sh
@@ -27,6 +27,28 @@ kubectl create deployment hello-server --image gcr.io/google-samples/hello-app:2
 # Expose the Kubernetes Service to the outside world
 kubectl expose deployment hello-server --type LoadBalancer --port 8080
 
+# Get pods, services, replicaSets and deployments running
+kubectl get pods
+kubectl get services
+kubectl get replicasets
+kubectl get deployments
+
+# Increase the number of replica pods of a deployment
+kubectl scale deployment <deployment> --replicas=3
+
+# Trigger, pause, resume, undo and view status of a rolling update on a deployment
+kubectl edit deployment <deployment>
+kubectl rollout pause deployment/<deployment>
+kubectl rollout resume deployment/<deployment>
+kubectl rollout undo deployment/<deployment>
+kubectl rollout status deployment/<deployment>
+
+# View the rollout history
+kubectl rollout history deployment/<deployment>
+
+# See which version of a container image is deployed to a pod
+kubectl get pods -o jsonpath --template='{range .items[*]}{.metadata.name}{"\t"}{"\t"}{.spec.containers[0].image}{"\n"}{end}'
+
 # Create an interactive shell inside a pod
 kubectl exec <pod> --stdin --tty -c <pod> /bin/sh
 

diff --git a/gcp.sh b/gcp.sh
@@ -27,6 +27,9 @@ kubectl create deployment hello-server --image gcr.io/google-samples/hello-app:2
 # Expose the Kubernetes Service to the outside world
 kubectl expose deployment hello-server --type LoadBalancer --port 8080
 
+# Create an interactive shell inside a pod
+kubectl exec <pod> --stdin --tty -c <pod> /bin/sh
+
 # Check that the service has been exposed
 kubectl get service
 

diff --git a/gcp.sh b/gcp.sh
@@ -30,6 +30,11 @@ kubectl expose deployment hello-server --type LoadBalancer --port 8080
 # Check that the service has been exposed
 kubectl get service
 
+kubectl get # list resources
+kubectl describe # show detailed information about a resource
+kubectl logs # print the logs from a container in a pod
+kubectl exec # execute a command on a container in a pod
+
 # Get list of compute images
 gcloud compute images list
 

diff --git a/gcp.sh b/gcp.sh
@@ -0,0 +1,138 @@
+## General commands
+# Get active account name
+gcloud auth list
+
+# List the project ID
+gcloud config list project
+
+# Find default zone
+gcloud compute project-info describe --project <GCP Project ID>
+
+# Set default zone
+gcloud config set compute/zone us-east1-b
+
+# Create server / compute instance with a specific machine type in a specific zone
+gcloud compute instances create nucleus-jumphost --machine-type f1-micro --zone us-east1-b
+
+## Create a Kubernetes service cluster
+# Create a Kubernetes cluster with a specific machine-type
+gcloud container clusters create my-cluster --machine-type n1-standard-1 --zone us-east1-b
+
+# Authenticate the Kubernetes cluster
+gcloud container clusters get-credentials my-cluster --zone us-east1-b
+
+# Deploy an application to the cluster
+kubectl create deployment hello-server --image gcr.io/google-samples/hello-app:2.0
+
+# Expose the Kubernetes Service to the outside world
+kubectl expose deployment hello-server --type LoadBalancer --port 8080
+
+# Check that the service has been exposed
+kubectl get service
+
+# Get list of compute images
+gcloud compute images list
+
+## Set up an HTTP load balancer
+# Create a startup script
+cat << EOF > startup.sh
+#! /bin/bash
+apt-get update
+apt-get install -y nginx
+service nginx start
+sed -i -- 's/nginx/Google Cloud Platform -'"\$HOSTNAME"'/' 
+/var/www/html/index.nginx-debian.html
+EOF
+
+# Create an instance template
+gcloud compute instance-templates create lb-backend-template \
+   --region us-east1 \
+   --network default \
+   --machine-type f1-micro \
+   --subnet default \
+   --tags allow-health-check \
+   --image-family debian-9 \
+   --image-project debian-cloud \
+   --metadata-from-file startup-script=startup.sh
+
+# Create a target pool
+gcloud compute target-pools create lb-pool
+
+# Create a managed instance group with a target pool,
+# that should receive incoming traffic from forwarding rules
+gcloud compute instance-groups managed create lb-backend-group \
+   --template lb-backend-template \
+   --size 2 \
+   --zone us-east1-b \
+   --target-pool lb-pool
+
+# Check computer instances
+gcloud compute instances list
+
+# Create a simple firewall
+gcloud compute firewall-rules create fw-allow-health-check --allow tcp:80
+# Or a more explicit firewall
+gcloud compute firewall-rules create fw-allow-health-check \
+    --network default \
+    --action allow \
+    --direction ingress \
+    --source-ranges 130.211.0.0/22,35.191.0.0/16 \
+    --target-tags allow-health-check \
+    --rules tcp:80
+
+# Create a forwarding rule from the outside world to the target pool
+gcloud compute forwarding-rules create nginx-lb \
+    --region us-east1 \
+    --ports 80 \
+    --target-pool lb-pool
+
+# Create a reserved IPv4 address (optional)
+gcloud compute addresses create lb-ipv4-1 \
+    --ip-version IPV4 \
+    --global
+
+# Get the IPv4 address (optional)
+gcloud compute addresses describe lb-ipv4-1 \
+    --format "get(address)" \
+    --global
+
+# Create a HTTP health check
+gcloud compute http-health-checks create http-basic-check --port 80
+
+# Ensure the health check service can reach the instance-group on http port 80
+# See gcloud compute instance-groups set-named-ports --help for more information
+gcloud compute instance-groups managed set-named-ports lb-backend-group \
+    --named-ports http:80
+
+# Create a backend service...
+gcloud compute backend-services create web-backend-service \
+    --protocol HTTP \
+    --http-health-checks http-basic-check \
+    --global
+
+# ...and attach the managed instance group
+gcloud compute backend-services add-backend web-backend-service \
+    --instance-group lb-backend-group \
+    --instance-group-zone us-east1-b \
+    --global
+
+# Create a URL map
+gcloud compute url-maps create web-map-http --default-service web-backend-service
+
+# Target the HTTP proxy to route requests to your URL map
+gcloud compute target-http-proxies create http-lb-proxy --url-map web-map-http
+
+# Create a global forwarding rule from outside world to lb-proxy
+gcloud compute forwarding-rules create http-content-rule \
+    --global \
+    --target-http-proxy http-lb-proxy \
+    --ports 80
+    # --address lb-ipv4-1
+
+# Check the forwarding rule is active
+gcloud compute forwarding-rules list
+
+# Undo/Delete all of the created above
+gcloud compute forwarding-rules delete http-content-rule --global && gcloud compute target-http-proxies delete http-lb-proxy && gcloud compute url-maps delete web-map-http && gcloud compute backend-services delete web-backend-service --global
+gcloud compute health-checks delete http http-basic-check
+gcloud compute firewall-rules delete fw-allow-health-check && gcloud compute instance-groups managed delete lb-backend-group && gcloud compute instance-templates delete lb-backend-template
No results found