Created
June 30, 2017 23:07
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TGIK 001 demo
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# This tells kubecfg to read its config from the local directory | |
export KUBECONFIG=./kubeconfig | |
# Looking at the cluster | |
kubectl get nodes | |
kubectl get pods --namespace=kube-system | |
# Running a single pod | |
kubectl run --generator=run-pod/v1 --image=gcr.io/kuar-demo/kuard-amd64:1 kuard | |
kubectl get pods | |
kubectl run --generator=run-pod/v1 --image=gcr.io/kuar-demo/kuard-amd64:1 kuard --dry-run -o yaml | |
kubectl get pods kuard -o yaml | |
kubectl port-forward kuard 8080:8080 | |
kubectl delete pod kuard | |
# Running a deployment | |
kubectl run --image=gcr.io/kuar-demo/kuard-amd64:1 kuard --replicas=5 --dry-run -o yaml | |
kubectl run --image=gcr.io/kuar-demo/kuard-amd64:1 kuard --replicas=5 | |
kubectl get pods | |
# Running a service | |
kubectl expose deployment kuard --type=LoadBalancer --port=80 --target-port=8080 --dry-run -o yaml | |
kubectl get service kuard -o wide | |
# Wait a while for the ELB to be ready | |
KUARD_LB=$(kubectl get service kuard -o jsonpath='{.status.loadBalancer.ingress[*].hostname}') | |
--- | |
# Doing a deployment | |
## Window 1 | |
## On the mac, install with `brew install watch` | |
watch -n 0.1 kubectl get pods | |
## Window 2 | |
## On the mac, install with `brew install jq` | |
while true ; do curl -s http://${KUARD_LB}/env/api | jq '.env.HOSTNAME'; done | |
## Window 3 | |
kubectl scale deployment kuard --replicas=10 | |
kubectl set image deployment kuard kuard=gcr.io/kuar-demo/kuard-amd64:2 | |
kubectl rollout undo deployment kuard | |
--- | |
# Clean up | |
kubectl delete deployment,service kuard |
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