Build docker image, inside minikube cluster

eval $(minikube docker-env)

./build.sh && docker image prune  (prune will remove dangling image after the rebuild)

\n Rolling Update For The Deployment

1. apply the initial deployment.yaml. kubectl apply -f
2. Rebuild the image. The image contains hash value
3. Update the yaml with the specific image
4. kubectl apply -f flask-deploy.yaml again.
5. kubectl rollout status deployment myflask => check the deployment status \n

Horizontal Scaling Test using k6 load test

https://k6.io/docs/get-started/installation/

You should also use minikube mount to mount data folder from localhost to minikube docker container.

How to start server locally

uvicorn app:app --host 0.0.0.0 --port 5000

Performance Testing

k6 run loadtest.js

Use helm to deploy

cd helm/myflask

helm install myflask . -n staging
helm uninstall myflask  # to uninstall
helm list --namespace [namespace-name]

helm upgrade -f myflask/values.yaml myflask  ./myflask -n staging # upgrade helm chart
helm install myflask . --debug --dry-run # use dry run to see the helm chart values

helm upgrade -f values.yaml

Use helm to deploy ingress

helm repo add ingress-nginx https://kubernetes.github.io/ingress-nginx # add repo for ingress-nginx helm search repo ingress-nginx search charts in repo helm pull ingress-nginx/ingress-nginx # this will pull the chart to local system, then we can update the chart helm upgrade -f values.yaml --install ingress-nginx ingress-nginx
--repo https://kubernetes.github.io/ingress-nginx
--namespace ingress-nginx --create-namespace

Installation Of Kubernetes On Server

install openvpn on our server

install docker runtime before install kubernetes https://www.cloudsigma.com/how-to-install-operate-docker-on-ubuntu-in-the-public-cloud/

follow the website to install the kubernetes https://www.cloudsigma.com/how-to-install-and-use-kubernetes-on-ubuntu-20-04/

kubectl apply -f https://raw.githubusercontent.com/coreos/flannel/master/Documentation/kube-flannel.yml

kubectl apply -f https://raw.githubusercontent.com/coreos/flannel/master/Documentation/k8s-manifests/kube-flannel-rbac.yml

Download remote kubeConfig to local system

merge the master node config to the local .kube/config file

scp -P 40110 user@ip:~:/home/ubs/.kube/config ~/Downloads/kubeconfig

\n

cp ~/.kube/config ~/.kube/config.bak && KUBECONFIG=~/.kube/config:/home/ryan/Downloads/kubeconfig kubectl config view --flatten > /tmp/config && mv /tmp/config ~/.kube/config

scp -P 40110 user@remote_ip:/path/to/remote/kube/config ~/.kube/config

\n

sudo kubeadm init --pod-network-cidr=10.244.0.0/16 --apiserver-advertise-address=0.0.0.0

ssh -L 6443:10.60.0.4:6443 user@ip -p 40110

\n

After installing this, i get the following message

Installation Of Argo Workflow And ArgoCD To Build A Pipeline

Create event source

kubectl apply -f ci/event/eventsource.yaml -n staging

Use Argo Workflow To Create CI Pipeline

Use ArgoCD to deploy the built image \n

Question: how can we use environment variable to update the image id in helmchat values.yaml?

Antwort: set IMAGE_ID environment variable, then use