Nginx. Ingress без сертификатов.

Примеры работы Nginx ingress под ключ.

helm repo add ingress-nginx https://kubernetes.github.io/ingress-nginx && \
helm repo update && \
helm install ingress-nginx ingress-nginx/ingress-nginx

Deployment+Service, которые являются бекендом у ingress

cat <<EOF | kubectl apply -f -
apiVersion: apps/v1
kind: Deployment
metadata:
  name: app1-deploy
  labels:
    app: app1
spec:
  replicas: 1
  selector:
    matchLabels:
      app: app1
  template:
    metadata:
      labels:
        app: app1
    spec:
      containers:
      - name: app1
        image: nginx:latest
        ports:
        - containerPort: 80
---
apiVersion: apps/v1
kind: Deployment
metadata:
  name: app2-deploy
  labels:
    app: app2
spec:
  replicas: 1
  selector:
    matchLabels:
      app: app2
  template:
    metadata:
      labels:
        app: app2
    spec:
      containers:
      - name: app2
        image: nginx:latest
        ports:
        - containerPort: 80
---
apiVersion: v1
kind: Service
metadata:
  name: app1
spec:
  selector:
    app: app1
  ports:
  - port: 80
    name: http
    targetPort: 80
---
apiVersion: v1
kind: Service
metadata:
  name: app2
spec:
  selector:
    app: app2
  ports:
  - port: 80
    name: http
    targetPort: 80
EOF

Простой ingress без TLS сертификата.

cat <<EOF | kubectl apply -f -
apiVersion: networking.k8s.io/v1
kind: Ingress
metadata:
  name: minimal-ingress
  annotations:
    kubernetes.io/ingress.class: "nginx"
spec:
  rules:
    - host: mac.cameda.ga
      http:
        paths:
        - path: /
          pathType: Prefix
          backend:
            service:
              name: app1
              port:
                number: 80
EOF

cat <<EOF | kubectl apply -f -
apiVersion: networking.k8s.io/v1
kind: Ingress
metadata:
  name: minimal-ingress
  annotations:
    kubernetes.io/ingress.class: "nginx"
spec:
  rules:
    - host: mac.infra.cameda.ga
      http:
        paths:
        - path: /
          pathType: Prefix
          backend:
            service:
              name: app
              port:
                number: 80
EOF

Ingress с двумя хостами.

# Данная конфигурация ingress используется для двух доменов, работающих
# по принципу двух server.
cat <<EOF | kubectl apply -f -
apiVersion: networking.k8s.io/v1
kind: Ingress
metadata:
  name: minimal-ingress
  annotations:
    kubernetes.io/ingress.class: "nginx"
spec:
  rules:
    - host: cat.infra.cameda.ga
      http:
        paths:
        - path: /
          pathType: Prefix
          backend:
            service:
              name: app1
              port:
                number: 80
    - host: dog.infra.cameda.ga
      http:
        paths:
        - path: /
          pathType: Prefix
          backend:
            service:
              name: app2
              port:
                number: 80
EOF

Ingress без TLS сертификата и с несколькими бакендами.

# Данная конфигурация ingress используется для двух доменов, работающих
# по принципу двух листенеров в одном блоке server.
cat <<EOF | kubectl apply -f -
apiVersion: networking.k8s.io/v1
kind: Ingress
metadata:
  name: cameda-ingress
  annotations:
    kubernetes.io/ingress.class: "nginx"
    nginx.ingress.kubernetes.io/rewrite-target: /
spec:
  rules:
    - host: mac.infra.cameda.ga
      http:
        paths:
        - path: /app1
          pathType: Prefix
          backend:
            service:
              name: app1
              port:
                number: 80
        - path: /app2
          pathType: Prefix
          backend:
            service:
              name: app2
              port:
                number: 80
EOF

Ingress с одним хостом.

# Данная конфигурация ingress используется для одного бекенда.
cat <<EOF | kubectl apply -f -
apiVersion: networking.k8s.io/v1
kind: Ingress
metadata:
  name: minimal-ingress
  annotations:
    kubernetes.io/ingress.class: "nginx"
spec:
  rules:
    - host: cameda.tk
      http:
        paths:
        - path: /
          pathType: Prefix
          backend:
            service:
              name: app
              port:
                number: 80
EOF