nginx_CD_chart/nginx-chart/templates/deployment.yaml

apiVersion: apps/v1
kind: Deployment

metadata:
  name: {{ include "nginx-chart.fullname" . }}
  namespace: {{ .Values.namespace }}

spec:
  replicas: {{ .Values.replicaCount }}

  selector:
    matchLabels:
      app: nginx

  template:
    metadata:
      labels:
        app: nginx
    spec:
      imagePullSecrets:
      - name: {{ .Values.imagePullSecrets }}
      containers:
        - name: nginx
          image: "{{ .Values.image.repository }}:{{ .Values.image.tag }}"
          imagePullPolicy: {{ .Values.image.pullPolicy }}
          ports:
            - containerPort: 80
          envFrom:
            - secretRef:
                name: {{ .Values.secret.name }}
          volumeMounts:
            - name: nginx-config
              mountPath: /etc/nginx/conf.d/default.conf
              subPath: default.conf
      volumes:
        - name: nginx-config
          configMap:
            name: {{ .Values.configMap.name }}