kubespray/roles/kubernetes-apps/ingress_controller/ingress_nginx/templates/ds-ingress-nginx-controller.yml.j2

---
apiVersion: apps/v1
kind: DaemonSet
metadata:
  name: ingress-nginx-controller
  namespace: {{ ingress_nginx_namespace }}
  labels:
    app.kubernetes.io/name: ingress-nginx
    app.kubernetes.io/part-of: ingress-nginx
spec:
  selector:
    matchLabels:
      app.kubernetes.io/name: ingress-nginx
      app.kubernetes.io/part-of: ingress-nginx
  template:
    metadata:
      labels:
        app.kubernetes.io/name: ingress-nginx
        app.kubernetes.io/part-of: ingress-nginx
      annotations:
        prometheus.io/port: "10254"
        prometheus.io/scrape: "true"
    spec:
      serviceAccountName: ingress-nginx
{% if ingress_nginx_host_network %}
      hostNetwork: true
      dnsPolicy: ClusterFirstWithHostNet
{% endif %}
{% if ingress_nginx_nodeselector %}
      nodeSelector:
        {{ ingress_nginx_nodeselector | to_nice_yaml | indent(width=8) }}
{%- endif %}
{% if ingress_nginx_tolerations %}
      tolerations:
        {{ ingress_nginx_tolerations | to_nice_yaml(indent=2) | indent(width=8) }}
{% endif %}
      priorityClassName: {% if ingress_nginx_namespace == 'kube-system' %}system-node-critical{% else %}k8s-cluster-critical{% endif %}{{''}}
      containers:
        - name: ingress-nginx-controller
          image: {{ ingress_nginx_controller_image_repo }}:{{ ingress_nginx_controller_image_tag }}
          imagePullPolicy: {{ k8s_image_pull_policy }}
          lifecycle:
            preStop:
              exec:
                command:
                  - /wait-shutdown
          args:
            - /nginx-ingress-controller
            - --configmap=$(POD_NAMESPACE)/ingress-nginx
            - --tcp-services-configmap=$(POD_NAMESPACE)/tcp-services
            - --udp-services-configmap=$(POD_NAMESPACE)/udp-services
            - --annotations-prefix=nginx.ingress.kubernetes.io
{% if ingress_nginx_host_network %}
            - --report-node-internal-ip-address
{% endif %}
{% if ingress_publish_status_address != "" %}
            - --publish-status-address={{ ingress_publish_status_address }}
{% endif %}
{% for extra_arg in ingress_nginx_extra_args %}
            - {{ extra_arg }}
{% endfor %}
          securityContext:
            capabilities:
                drop:
                  - ALL
                add:
                  - NET_BIND_SERVICE
            # www-data -> 101
            runAsUser: 101
            allowPrivilegeEscalation: true
          env:
            - name: POD_NAME
              valueFrom:
                fieldRef:
                  fieldPath: metadata.name
            - name: POD_NAMESPACE
              valueFrom:
                fieldRef:
                  fieldPath: metadata.namespace
            - name: LD_PRELOAD
              value: /usr/local/lib/libmimalloc.so
          ports:
            - name: http
              containerPort: 80
              hostPort: {{ ingress_nginx_insecure_port }}
            - name: https
              containerPort: 443
              hostPort: {{ ingress_nginx_secure_port }}
            - name: metrics
              containerPort: 10254
{% if not ingress_nginx_host_network %}
              hostPort: {{ ingress_nginx_metrics_port }}
{% endif %}
          livenessProbe:
            failureThreshold: 3
            httpGet:
              path: /healthz
              port: 10254
              scheme: HTTP
            initialDelaySeconds: 10
            periodSeconds: 10
            timeoutSeconds: 5
            successThreshold: 1
            failureThreshold: 3
          readinessProbe:
            httpGet:
              path: /healthz
              port: 10254
              scheme: HTTP
            initialDelaySeconds: 10
            periodSeconds: 10
            timeoutSeconds: 5
            successThreshold: 1
            failureThreshold: 3