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Custo step

Setup

  1. Replace LoadBalancer by ClusterIP

find delivery -type f -name "*.yaml" -print0 | xargs -0 sed -i 's/type: LoadBalancer/type: ClusterIP/g'

find delivery -type f -name "*.yaml" -print0 | xargs -0 sed -i 's/serviceType: LoadBalancer/serviceType: ClusterIP/g'

  1. Install kind

go install sigs.k8s.io/[email protected]

  1. Create kind cluster

kind create cluster

Kubectl

kubectl apply -f ./delivery/kubectl/manifest.yaml

kubectl port-forward svc/podtato-main 9000:9000

firefox http://localhost:9000

Edit some image, apply, reload

kubectl delete -f ./delivery/kubectl/manifest.yaml

Helm

kubectl create namespace podtato-kubectl

helm install podtato-head ./delivery/chart

kubectl port-forward svc/podtato-main 9000:9000

firefox http://localhost:9000

Edit some images

helm upgrade --install podtato-head ./delivery/chart

reload

helm history podtato-head

helm rollback podtato-head 1

reload

helm status podtato-head

helm uninstall podtato-head

Kustomize

kstomize build ./delivery/kustomize/overlay/prod | kubectl apply -f -

(kstomize edit set namespace)

kubectl port-forward svc/podtato-main 9000:9000

firefox http://localhost:9000

kstomize build ./delivery/kustomize/overlay/prod | kubectl delete -f -

Discourage the use via kubectl -k

Kapp

export PATH=$PWD/kapp-install/:$PATH

kns default

Prepare kubectl get po -n podtato-kubectl

kapp deploy -a podtatoserver-app -f ./delivery/kubectl/manifest.yaml

"app" created in default namespace

kapp list

kapp inspect -a podtatoserver-app --tree

kns podtato-kubectl

kapp list

kubectl port-forward svc/podtato-main 9000:9000

firefox http://localhost:9000

kns default

kapp deploy -a podtatoserver-app -f ./delivery/kubectl/manifest.yaml --diff-changes

kapp delete -a podtatoserver-app

ArgoCD

Install in cluster:

kubectl create namespace argocd kubectl apply -n argocd -f https://raw.githubusercontent.com/argoproj/argo-cd/stable/manifests/install.yaml

Check it's started

kubectl -n argocd get secret argocd-initial-admin-secret -o jsonpath="{.data.password}" | base64 -d && echo

argocd login --insecure --grpc-web --port-forward --port-forward-namespace argocd

username: admin password: previous command

argocd account update-password --insecure --grpc-web --port-forward --port-forward-namespace argocd

kubectl -n argocd port-forward --address 0.0.0.0 svc/argocd-server 8082:80

firefox https://localhost:8082

Create app, path delivery/kubectl, choose directory, sync policy automatic

Show UI

Do commit

Progressive Delivery

Install Argo rollout

kubectl create namespace argo-rollouts kubectl apply -n argo-rollouts -f https://raw.githubusercontent.com/argoproj/argo-rollouts/stable/manifests/install.yaml

Install istio

istioctl install --set values.gateways.istio-ingressgateway.type=ClusterIP

Install prometheus

kubectl apply -f https://raw.githubusercontent.com/istio/istio/release-1.13/samples/addons/prometheus.yaml

Deploy rollout

kubectl apply -f ./progressive/namespace.yaml && kubectl apply -f ./progressive

demo

Forward metrics: kubectl port-forward -n istio-system svc/prometheus 9090:9090

Forward ingress: kubectl port-forward -n istio-system svc/istio-ingressgateway 8080:80

firefox http://localhost:8080 http://localhost:9090 &

metrics "istio_requests_total"

kubectl edit -n rollouts-demo rollouts.argoproj.io istio-rollout

watch kubectl get virtualservices.networking.istio.io -n rollouts-demo istio-rollout-vsvc -o yaml