See folder /exercise1_01.
The app is found in folder /app of this repo.
The manifest-file: /app/manifests/manifest.yaml
Create the cluster
> k3d cluster create -a 2
Deploy the app (See deployment.yaml. The app exposes port 8080)
> kubectl apply -f manifests/deployment.yaml
Check out the pods
> kubectl apply -f manifests/deployment.yaml
NAME READY STATUS RESTARTS AGE
ssh-nuke-deployment-d875cd45b-jsqm8 1/1 Running 0 73s
ssh-nuke-deployment-d875cd45b-k6n46 1/1 Running 0 73s
ssh-nuke-deployment-d875cd45b-x2tcg 1/1 Running 0 73s
Let's forward port to one of the replicas:
> kubectl port-forward ssh-nuke-deployment-d875cd45b-jsqm8 1337:8080
Forwarding from 127.0.0.1:1337 -> 8080
Forwarding from [::1]:1337 -> 8080
Let's see if it works:
> curl localhost:1337
Application afe245f447. Response 6348603466
Yay!
There are three different manifest-files
service-ClusterIP.yaml, service-NodePort.yaml and ingress.yaml.
Create cluster and deploy with NodePort:
k3d cluster create --port '8082:30080@agent[0]' --port '8081:80@loadbalancer' --agents 5
kubectl apply -f manifests/deployment.yaml
kubectl apply -f manifests/service-NodePort.yaml
The port forwarding works as 8082 -> 30080 -> 8080 and defined in NodePort-manifest.
Create cluster and deploy with ingress and ClusterIP:
k3d cluster create --port '8082:30080@agent[0]' --port '1337:80@loadbalancer' --agents 5
kubectl apply -f manifests/deployment.yaml
kubectl apply -f manifests/service-ClusterIP.yaml
kubectl apply -f manifests/ingress.yaml
Let's check it out:
> kubectl get svc
NAME TYPE CLUSTER-IP EXTERNAL-IP PORT(S) AGE
kubernetes ClusterIP 10.43.0.1 <none> 443/TCP 63s
ssh-nuke-service ClusterIP 10.43.56.218 <none> 2345/TCP 10s
> kubectl get ing
NAME CLASS HOSTS ADDRESS PORTS AGE
ssh-nuke-ingress <none> * 172.29.0.3 80 59s
Port forwarding 1337 -> 80 (ingress? reverse proxy) -> 2345 (ClusterIP) -> 8080.
I'm so confused!
Not really understood the task: "Switch to using Ingress instead of NodePort to access the project. You can delete the ingress of the "main application" so they don't interfere with this exercise." ??
See folder exercise1_09.
See folder exercise1_10.
See folder exercise1_11.
See folder exercise1_12.
See folder exercise1_13.
See folder exercise2_01
See folder exercise2_01
See folder exercise2_03 2_04 2_06