helm/docs/examples/nginx/templates/deployment.yaml

apiVersion: apps/v1
kind: Deployment
metadata:
  # This uses a "fullname" template (see _helpers)
  # Basing names on .Release.Name means that the same chart can be installed
  # multiple times into the same namespace.
  name: {{ template "nginx.fullname" . }}
  labels:
    # The "app.kubernetes.io/managed-by" label is used to track which tool
    # deployed a given chart. It is useful for admins who want to see what
    # releases a particular tool is responsible for.
    app.kubernetes.io/managed-by: {{ .Release.Service }}
    # The "app.kubernetes.io/instance" convention makes it easy to tie a release
    # to all of the Kubernetes resources that were created as part of that
    # release.
    app.kubernetes.io/instance: {{ .Release.Name }}
    # This makes it easy to audit chart usage.
    helm.sh/chart: {{ .Chart.Name }}-{{ .Chart.Version }}
    app.kubernetes.io/name: {{ template "nginx.name" . }}
spec:
  replicas: {{ .Values.replicaCount }}
  template:
    metadata:
      {{- if .Values.podAnnotations }}
      # Allows custom annotations to be specified
      annotations:
        {{- toYaml .Values.podAnnotations | nindent 8 }}
      {{- end }}
      labels:
        app.kubernetes.io/name: {{ template "nginx.name" . }}
        app.kubernetes.io/instance: {{ .Release.Name }}
    spec:
      containers:
        - name: {{ template "nginx.name" . }}
          image: "{{ .Values.image.repository }}:{{ .Values.image.tag }}"
          imagePullPolicy: {{ .Values.image.pullPolicy }}
          ports:
            - name: http
              containerPort: 80
              protocol: TCP
          # This (and the volumes section below) mount the config map as a volume.
          volumeMounts:
            - mountPath: /usr/share/nginx/html
              name: wwwdata-volume
          resources:
            # Allow chart users to specify resources. Usually, no default should
            # be set, so this is left to be a conscious choice to the chart
            # users and avoids that charts don't run out of the box on, e. g.,
            # Minikube when high resource requests are specified by default.
            {{- toYaml .Values.resources | nindent 12 }}
      {{- if .Values.nodeSelector }}
      nodeSelector:
        # Node selectors can be important on mixed Windows/Linux clusters.
        {{- toYaml .Values.nodeSelector | nindent 8 }}
      {{- end }}
      volumes:
        - name: wwwdata-volume
          configMap:
            name: {{ template "nginx.fullname" . }}