Question 98069 in Nginx Question posted in
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Extend helm upgrade cmd to add some field values – Nginx

I’m installing ingress nginx using a modified yaml file

kubectl apply -f deploy.yaml

The yaml file is just the original deploy file but with added hostPorts for the deployment:

ports:
  - name: http
    containerPort: 80
    protocol: TCP
  - name: https
    containerPort: 443
    protocol: TCP
  - name: webhook
    containerPort: 8443
    protocol: TCP

become:

ports:
  - name: http
    containerPort: 80
    protocol: TCP
    hostPort: 80 #<-- added
  - name: https
    containerPort: 443
    protocol: TCP
    hostPort: 443 #<-- added
  - name: webhook
    containerPort: 8443
    protocol: TCP
    hostPort: 8443 #<-- added

So this is working for me. But I would like to install ingress nginx using helm:

helm upgrade --install ingress-nginx ingress-nginx 
  --repo https://kubernetes.github.io/ingress-nginx 
  --namespace ingress-nginx --create-namespace

Is it possible to add the hostPort values using helm (-f values.yml)? I need to add hostPort in Deployment.spec.template.containers.ports, but I have two problems to write the correct values.yml file:

values.yml

# How to access the deployment?
spec:
  template:
    containers:
      ports: # How to add field with existing containerPort value of each element in the array?
Tags:

2

Answers


  2. 0

    First of all, you already have hostPort in values.yaml. See following fragment:

      ## Use host ports 80 and 443
  ## Disabled by default
  hostPort:
    # -- Enable 'hostPort' or not
    enabled: false
    ports:
      # -- 'hostPort' http port
      http: 80
      # -- 'hostPort' https port
      https: 443

    You should turn it on in values.yaml:

      ## Use host ports 80 and 443
  ## Disabled by default
  hostPort:
    # -- Enable 'hostPort' or not
    enabled: true

    After all – as you know – you can install your ingress via helm.

    helm install -f values.yaml

    About webhook – see here.

    You can find hostPort also in deployment file. Here is one of the templates (controller-deployment.yaml):

    In this file you can find three appearances of hostPort (value controller.hostPort.enabled – responsible for enabling or disabling the hostPort).

    Here:

                  {{- if $.Values.controller.hostPort.enabled }}
              hostPort: {{ index $.Values.controller.hostPort.ports $key | default $value }}
              {{- end }}

    and here:

              {{- range $key, $value := .Values.tcp }}
            - name: {{ $key }}-tcp
              containerPort: {{ $key }}
              protocol: TCP
              {{- if $.Values.controller.hostPort.enabled }}
              hostPort: {{ $key }}
              {{- end }}
          {{- end }}
          {{- range $key, $value := .Values.udp }}
            - name: {{ $key }}-udp
              containerPort: {{ $key }}
              protocol: UDP
              {{- if $.Values.controller.hostPort.enabled }}
              hostPort: {{ $key }}
              {{- end }}
          {{- end }}

    See also:

    1. ingress-nginx Documentation on Github
    2. nginx Documentation
    3. NGINX – Helm Charts
    4. Helm Documentation
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