priobike-k8s-deployment

Usage

Resolve dependencies:

helm dependency update

Install/upgrade:

helm upgrade --install priobike-k8s-deployment . --namespace priobike-k8s-deployment 

Important

This backend setup uses another service (priobike-predictor) for predictions than our latest app version. Therefore, this backend only works with the priobike-flutter-app until commit 318eadaa4662404919f3d3c122a24dae230fdbb7.

Local development

We use kind for our local development cluster. To make Kubernetes Ingress and NodePort working, we need special configuration. We need to add port mappings for every service/ingress that we want to access from the outside (eg 80,443,1883).

Install kind:

brew install kind

Create cluster:

cat <<EOF | kind create cluster --config=-
kind: Cluster
apiVersion: kind.x-k8s.io/v1alpha4
nodes:
- role: control-plane
  kubeadmConfigPatches:
  - |
    kind: InitConfiguration
    nodeRegistration:
      kubeletExtraArgs:
        node-labels: "ingress-ready=true"
  extraPortMappings:
  - containerPort: 80 # http
    hostPort: 80
    protocol: TCP
  - containerPort: 443 # https
    hostPort: 443
    protocol: TCP
  - containerPort: 30000 # mqtt/tcp 
    hostPort: 30000 
    protocol: TCP
EOF

Add ingress NGINX:

kubectl apply -f nginx-ingress-deploy.yaml

Wait until the ingress is set up:

kubectl wait --namespace ingress-nginx \
  --for=condition=ready pod \
  --selector=app.kubernetes.io/component=controller \
  --timeout=90s

Create the namespace if not present yet:

kubectl create namespace priobike-k8s-deployment

Add your registry credentials as secret:

kubectl create secret docker-registry regcred \
--docker-server=REGISTRY_URL \
--docker-username=USERNAME \
--docker-password=PASSWORD \
--namespace priobike-k8s-deployment