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nginxkubernetesgoogle-kubernetes-enginekubernetes-helm

Nginx-ingress setting annotations to work with Kubernetes Helm install values.yaml


Running on Google Cloud platform / Container Engine - How do I set it up to point to this Ingress in the following?

I have installed Nginx-ingress on Kubernetes with Helm and it works for the default backend - 404.

I want to be able to use different http uri path, like <domain.com>/v1, <domain.com>/v2 and others.

For my own Chart that I want to use Ingress I have the following in values.yaml:

# Default values for app-go.
# This is a YAML-formatted file.
# Declare variables to be passed into your templates.

replicaCount: 1

image:
  repository: gcr.io/<project name>/app-go
  tag: latest
  pullPolicy: IfNotPresent

service:
  type: ClusterIP
  port:

# kubernetes.io/tls-acme: "true",

ingress:
  enabled: true
  annotations: {
    kubernetes.io/ingress.class: "nginx",
    kubernetes.io/ingress.global-static-ip-name: "kube-ingress"
  }

    # kubernetes.io/ingress.class: nginx
    # kubernetes.io/tls-acme: "true"
  path: /
  hosts:
    - <domain.com>
  tls: []
  #  - secretName: chart-example-tls
  #    hosts:
  #      - chart-example.local

resources: {}
  # We usually recommend not to specify default resources and to leave this as a conscious
  # choice for the user. This also increases chances charts run on environments with little
  # resources, such as Minikube. If you do want to specify resources, uncomment the following
  # lines, adjust them as necessary, and remove the curly braces after 'resources:'.
  # limits:
  #  cpu: 100m
  #  memory: 128Mi
  # requests:
  #  cpu: 100m
  #  memory: 128Mi

nodeSelector: {}

tolerations: []

affinity: {}

How do I specify annotations for Nginx-ingress for different paths.

helm version      
Client: &version.Version{SemVer:"v2.8.1", GitCommit:"6af75a8fd72e2aa18a2b278cfe5c7a1c5feca7f2", GitTreeState:"clean"}
Server: &version.Version{SemVer:"v2.8.0", GitCommit:"14af25f1de6832228539259b821949d20069a222", GitTreeState:"clean"}

Solution

  • I went ahead and reproduced your use case.
    Assuming the installation of nginx ingress controller though helm went smoothly and when listing resources everything seems to be fine, you need to specify the paths in the ingress yaml file, as follows:

    apiVersion: extensions/v1beta1
    kind: Ingress
    metadata:
      name: ingress-resource
      annotations:
        kubernetes.io/ingress.class: nginx
        nginx.ingress.kubernetes.io/ssl-redirect: "false"
    spec:
      rules:
      - host: test.demo.com
        http:
          paths:
          - path: /path1
            backend:
              serviceName: s1
              servicePort: 8080
          - path: /path2
            backend:
              serviceName: s1
              servicePort: 8080
          - path: /path3
            backend:
              serviceName: s2
              servicePort: 80
      - host: demo.test.com
        http:
          paths:
          - backend:
              serviceName: s2
              servicePort: 80
    

    Then, curl -H -I 'Host: test.demo.com' http://external-lb-ip/path1, for example, should return 200.