kubespray/roles/network_plugin/calico/templates/calico-node.yml.j2

---
# This manifest installs the calico/node container, as well
# as the Calico CNI plugins and network config on
# each master and worker node in a Kubernetes cluster.
kind: DaemonSet
apiVersion: extensions/v1beta1
metadata:
  name: calico-node
  namespace: kube-system
  labels:
    k8s-app: calico-node
spec:
  selector:
    matchLabels:
      k8s-app: calico-node
  template:
    metadata:
      labels:
        k8s-app: calico-node
      annotations:
        # Mark pod as critical for rescheduling (Will have no effect starting with kubernetes 1.12)
        scheduler.alpha.kubernetes.io/critical-pod: ''
        kubespray.etcd-cert/serial: "{{ etcd_client_cert_serial }}"
    spec:
{% if kube_version|version_compare('v1.11.1', '>=') %}
      priorityClassName: system-node-critical
{% endif %}
      hostNetwork: true
      serviceAccountName: calico-node
      tolerations:
        - operator: Exists
        # Mark pod as critical for rescheduling (Will have no effect starting with kubernetes 1.12)
        - key: CriticalAddonsOnly
          operator: "Exists"
      # Minimize downtime during a rolling upgrade or deletion; tell Kubernetes to do a "force
      # deletion": https://kubernetes.io/docs/concepts/workloads/pods/pod/#termination-of-pods.
      terminationGracePeriodSeconds: 0
      containers:
        # Runs calico/node container on each Kubernetes node.  This
        # container programs network policy and routes on each
        # host.
        - name: calico-node
          image: {{ calico_node_image_repo }}:{{ calico_node_image_tag }}
          env:
            # The location of the Calico etcd cluster.
            - name: ETCD_ENDPOINTS
              valueFrom:
                configMapKeyRef:
                  name: calico-config
                  key: etcd_endpoints
            # Choose the backend to use.
            - name: CALICO_NETWORKING_BACKEND
              valueFrom:
                configMapKeyRef:
                  name: calico-config
                  key: calico_backend
            # Cluster type to identify the deployment type
            - name: CLUSTER_TYPE
              valueFrom:
                configMapKeyRef:
                  name: calico-config
                  key: cluster_type
            # Set noderef for node controller.
            - name: CALICO_K8S_NODE_REF
              valueFrom:
                fieldRef:
                  fieldPath: spec.nodeName
            # Disable file logging so `kubectl logs` works.
            - name: CALICO_DISABLE_FILE_LOGGING
              value: "true"
            # Set Felix endpoint to host default action to ACCEPT.
            - name: FELIX_DEFAULTENDPOINTTOHOSTACTION
              value: "{{ calico_endpoint_to_host_action|default('RETURN') }}"
            - name: FELIX_HEALTHHOST
              value: "{{ calico_healthhost }}"
# should be set in etcd before deployment
#            # Configure the IP Pool from which Pod IPs will be chosen.
#            - name: CALICO_IPV4POOL_CIDR
#              value: "192.168.0.0/16"
#            - name: CALICO_IPV4POOL_IPIP
#              value: "always"
            # Disable IPv6 on Kubernetes.
            - name: FELIX_IPV6SUPPORT
              value: "false"
            # Set Felix logging to "info"
            - name: FELIX_LOGSEVERITYSCREEN
              value: "info"
            # Set MTU for tunnel device used if ipip is enabled
{% if calico_mtu is defined %}
            - name: FELIX_IPINIPMTU
              value: "{{ calico_mtu }}"
{% endif %}
            - name: FELIX_PROMETHEUSMETRICSENABLED
              value: "{{ calico_felix_prometheusmetricsenabled }}"
            - name: FELIX_PROMETHEUSMETRICSPORT
              value: "{{ calico_felix_prometheusmetricsport }}"
            - name: FELIX_PROMETHEUSGOMETRICSENABLED
              value: "{{ calico_felix_prometheusgometricsenabled }}"
            - name: FELIX_PROMETHEUSPROCESSMETRICSENABLED
              value: "{{ calico_felix_prometheusprocessmetricsenabled }}"
            # Location of the CA certificate for etcd.
            - name: ETCD_CA_CERT_FILE
              valueFrom:
                configMapKeyRef:
                  name: calico-config
                  key: etcd_ca
            # Location of the client key for etcd.
            - name: ETCD_KEY_FILE
              valueFrom:
                configMapKeyRef:
                  name: calico-config
                  key: etcd_key
            # Location of the client certificate for etcd.
            - name: ETCD_CERT_FILE
              valueFrom:
                configMapKeyRef:
                  name: calico-config
                  key: etcd_cert
{% if calico_ip_auto_method is defined %}
            - name: IP_AUTODETECTION_METHOD
              value: "{{ calico_ip_auto_method }}"
{% else %}
            - name: IP
              valueFrom:
                fieldRef:
                  fieldPath: status.hostIP
{% endif %}
            - name: NODENAME
              valueFrom:
                fieldRef:
                  fieldPath: spec.nodeName
            - name: FELIX_HEALTHENABLED
              value: "true"
            - name: FELIX_IGNORELOOSERPF
              value: "{{ calico_node_ignorelooserpf }}"
          securityContext:
            privileged: true
          resources:
            limits:
              cpu: {{ calico_node_cpu_limit }}
              memory: {{ calico_node_memory_limit }}
            requests:
              cpu: {{ calico_node_cpu_requests }}
              memory: {{ calico_node_memory_requests }}
          livenessProbe:
            httpGet:
              host: 127.0.0.1
              path: /liveness
              port: 9099
            periodSeconds: 10
            initialDelaySeconds: 10
            failureThreshold: 6
          readinessProbe:
            httpGet:
              host: 127.0.0.1
              path: /readiness
              port: 9099
            periodSeconds: 10
          volumeMounts:
            - mountPath: /lib/modules
              name: lib-modules
              readOnly: true
            - mountPath: /var/run/calico
              name: var-run-calico
            - mountPath: /var/lib/calico
              name: var-lib-calico
              readOnly: false
            - mountPath: /calico-secrets
              name: etcd-certs
      volumes:
        # Used by calico/node.
        - name: lib-modules
          hostPath:
            path: /lib/modules
        - name: var-run-calico
          hostPath:
            path: /var/run/calico
        - name: var-lib-calico
          hostPath:
            path: /var/lib/calico
        # Used to install CNI.
        - name: cni-bin-dir
          hostPath:
            path: /opt/cni/bin
        - name: cni-net-dir
          hostPath:
            path: /etc/cni/net.d
        # Mount in the etcd TLS secrets.
        - name: etcd-certs
          hostPath:
            path: "{{ calico_cert_dir }}"
  updateStrategy:
    rollingUpdate:
      maxUnavailable: {{ serial | default('20%') }}
    type: RollingUpdate