openstack-helm-infra/calico/templates/daemonset-calico-node.yaml

{{/*
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at

   http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/}}

{{- if .Values.manifests.daemonset_calico_node }}
{{- $envAll := . }}


{{/* Robustness, Calico 3.x wants things as Titlecase; this causes pain */}}
{{- $_ := set .Values.conf.node "CALICO_IPV4POOL_IPIP" (title .Values.conf.node.CALICO_IPV4POOL_IPIP ) -}}
{{- $_ := set .Values.conf.node "CALICO_STARTUP_LOGLEVEL" (title .Values.conf.node.CALICO_STARTUP_LOGLEVEL ) -}}
{{- $_ := set .Values.conf.node "FELIX_LOGSEVERITYSCREEN" (title .Values.conf.node.FELIX_LOGSEVERITYSCREEN ) -}}


{{/* If using tunnels, and FELIX_IPINIPMTU is not set, make it 20 less than the physical to account for IPIP overhead */}}
{{- if empty .Values.conf.node.FELIX_IPINIPMTU -}}
{{- if ne .Values.conf.node.CALICO_IPV4POOL_IPIP "Never" -}}
{{- $_ := set .Values.conf.node "FELIX_IPINIPMTU" (sub .Values.networking.mtu 20) -}}
# Setting tunnel MTU to {{ .Values.conf.node.FELIX_IPINIPMTU }}
{{- end -}}
{{- end -}}


{{/* CNI_MTU is >= than the IPIP mtu, usually the physical MTU of the system */}}
{{- if empty .Values.conf.node.CNI_MTU -}}
{{- $_ := set .Values.conf.node "CNI_MTU" .Values.networking.mtu -}}
{{- end -}}


{{- if empty .Values.conf.node.CALICO_IPV4POOL_CIDR -}}
{{- $_ := set .Values.conf.node "CALICO_IPV4POOL_CIDR" .Values.networking.podSubnet -}}
{{- end -}}



{{- $serviceAccountName := "calico-node" }}
{{ tuple $envAll "calico_node" $serviceAccountName | include "helm-toolkit.snippets.kubernetes_pod_rbac_serviceaccount" }}
---
apiVersion: rbac.authorization.k8s.io/v1
kind: ClusterRoleBinding
metadata:
  name: calico-node
roleRef:
  apiGroup: rbac.authorization.k8s.io
  kind: ClusterRole
  name: calico-node
subjects:
- kind: ServiceAccount
  name: {{ $serviceAccountName }}
  namespace: {{ .Release.Namespace }}
---
kind: ClusterRole
apiVersion: rbac.authorization.k8s.io/v1
metadata:
  name: {{ $serviceAccountName }}
rules:
  - apiGroups: [""]
    resources:
      - pods
      - nodes
      - namespaces
    verbs:
      - get
  - apiGroups: ["batch"]
    resources: ["jobs"]
    verbs: ["get"]
---
# 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: apps/v1
metadata:
  name: calico-node
  annotations:
    {{ tuple $envAll | include "helm-toolkit.snippets.release_uuid" }}
  labels:
    k8s-app: calico-node
{{ tuple $envAll "calico" "node" | include "helm-toolkit.snippets.kubernetes_metadata_labels" | indent 4 }}
spec:
  selector:
    matchLabels:
      k8s-app: calico-node
{{ tuple $envAll "calico" "node" | include "helm-toolkit.snippets.kubernetes_metadata_labels" | indent 6 }}
  updateStrategy:
    type: RollingUpdate
    rollingUpdate:
      maxUnavailable: 1
  template:
    metadata:
      labels:
        k8s-app: calico-node
{{ tuple $envAll "calico" "node" | include "helm-toolkit.snippets.kubernetes_metadata_labels" | indent 8 }}
      annotations:
{{ tuple $envAll | include "helm-toolkit.snippets.release_uuid" | indent 8 }}
        configmap-etc-hash: {{ tuple "configmap-etc.yaml" . | include "helm-toolkit.utils.hash" }}
        configmap-bin-hash: {{ tuple "configmap-bin.yaml" . | include "helm-toolkit.utils.hash" }}
        configmap-bird-hash: {{ tuple "configmap-bird.yaml" . | include "helm-toolkit.utils.hash" }}
        # This, along with the CriticalAddonsOnly toleration below,
        # marks the pod as a critical add-on, ensuring it gets
        # priority scheduling and that its resources are reserved
        # if it ever gets evicted.
        scheduler.alpha.kubernetes.io/critical-pod: ''
{{ dict "envAll" $envAll "podName" "calico-node" "containerNames" (list "calico-node") | include "helm-toolkit.snippets.kubernetes_mandatory_access_control_annotation" | indent 8 }}
{{- if .Values.monitoring.prometheus.enabled }}
{{- $prometheus_annotations := $envAll.Values.monitoring.prometheus.calico_node }}
{{ tuple $prometheus_annotations | include "helm-toolkit.snippets.prometheus_pod_annotations" | indent 8 }}
{{- end }}
    spec:
{{ dict "envAll" $envAll "application" "calico_node" | include "helm-toolkit.snippets.kubernetes_pod_security_context" | indent 6 }}
      nodeSelector:
        beta.kubernetes.io/os: linux
      hostNetwork: true
      tolerations:
        # Make sure calico-node gets scheduled on all nodes.
        - effect: NoSchedule
          operator: Exists
        # Mark the pod as a critical add-on for rescheduling.
        - key: CriticalAddonsOnly
          operator: Exists
        - effect: NoExecute
          operator: Exists
      serviceAccountName: {{ $serviceAccountName }}
      # 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

      initContainers:
{{ tuple $envAll "calico_node" list | include "helm-toolkit.snippets.kubernetes_entrypoint_init_container" | indent 8 }}
{{ if .Values.manifests.daemonset_calico_node_calicoctl }}
        - name: install-calicoctl
{{ tuple $envAll "calico_ctl" | include "helm-toolkit.snippets.image" | indent 10 }}
{{ tuple $envAll $envAll.Values.pod.resources.calico_ctl | include "helm-toolkit.snippets.kubernetes_resources" | indent 10 }}
{{ dict "envAll" $envAll "application" "calico_node" "container" "calico_ctl" | include "helm-toolkit.snippets.kubernetes_container_security_context" | indent 10 }}
          command:
            - /tmp/install-calicoctl.sh
          env:
            - name: ETCD_ENDPOINTS
              valueFrom:
                configMapKeyRef:
                  name: calico-etc
                  key: etcd_endpoints
{{ if .Values.endpoints.etcd.auth.client.tls.ca }}
            - name: ETCD_CA_CERT_FILE
              value: {{ .Values.endpoints.etcd.auth.client.path.ca }}
            - name: ETCD_CA_CERT
              valueFrom:
                secretKeyRef:
                  name: calico-etcd-secrets
                  key: tls.ca
{{ end }}
{{ if .Values.endpoints.etcd.auth.client.tls.key }}
            - name: ETCD_KEY_FILE
              value: {{ .Values.endpoints.etcd.auth.client.path.key }}
            - name: ETCD_KEY
              valueFrom:
                secretKeyRef:
                  name: calico-etcd-secrets
                  key: tls.key
{{ end }}
{{ if .Values.endpoints.etcd.auth.client.tls.crt }}
            - name: ETCD_CERT_FILE
              value: {{ .Values.endpoints.etcd.auth.client.path.crt }}
            - name: ETCD_CERT
              valueFrom:
                secretKeyRef:
                  name: calico-etcd-secrets
                  key: tls.crt
{{ end }}
          volumeMounts:
            - name: pod-tmp
              mountPath: /tmp
            - mountPath: /host/etc/calico
              name: calico-cert-dir
            - mountPath: /host/opt/cni/bin
              name: cni-bin-dir
            - mountPath: /tmp/install-calicoctl.sh
              name: calico-bin
              subPath: install-calicoctl.sh
            - name: calico-etcd-secrets
              mountPath: {{ .Values.endpoints.etcd.auth.client.path.ca }}
              subPath: tls.ca
              readOnly: true
            - name: calico-etcd-secrets
              mountPath: {{ .Values.endpoints.etcd.auth.client.path.crt }}
              subPath: tls.crt
              readOnly: true
            - name: calico-etcd-secrets
              mountPath: {{ .Values.endpoints.etcd.auth.client.path.key }}
              subPath: tls.key
              readOnly: true
{{ end }}
        # This container installs the Calico CNI binaries
        # and CNI network config file on each node.
        - name: install-cni
{{ tuple $envAll "calico_cni" | include "helm-toolkit.snippets.image" | indent 10 }}
{{ dict "envAll" $envAll "application" "calico_node" "container" "install_cni" | include "helm-toolkit.snippets.kubernetes_container_security_context" | indent 10 }}
          command: ["/install-cni.sh"]
          env:
            # Prevents the container from sleeping forever.
            - name: SLEEP
              value: "false"
            # Name of the CNI config file to create.
            #
            # NOTE: Calico v3 needs to end in .conflist; Calico v2 is
            # different!
            - name: CNI_CONF_NAME
              value: "10-calico.conflist"
            # The location of the Calico etcd cluster.
            - name: ETCD_ENDPOINTS
              valueFrom:
                configMapKeyRef:
                  name: calico-etc
                  key: etcd_endpoints
            # The CNI network config to install on each node.
            - name: CNI_NETWORK_CONFIG
              valueFrom:
                configMapKeyRef:
                  name: calico-etc
                  key: cni_network_config


          volumeMounts:
            - name: pod-tmp
              mountPath: /tmp
            - name: cni-bin-dir
              mountPath: /host/opt/cni/bin
            - name: cni-net-dir
              mountPath: /host/etc/cni/net.d
{{ if .Values.conf.etcd.credentials.ca }}
            - name: calico-etcd-secrets
              mountPath: /calico-secrets/etcd-ca
              subPath: etcd.ca
              readOnly: true
{{ end }}
{{ if .Values.conf.etcd.credentials.certificate }}
            - name: calico-etcd-secrets
              mountPath: /calico-secrets/etcd-cert
              subPath: etcd.crt
              readOnly: true
{{ end }}
{{ if .Values.conf.etcd.credentials.key }}
            - name: calico-etcd-secrets
              mountPath: /calico-secrets/etcd-key
              subPath: etcd.key
              readOnly: true
{{ end }}
      volumes:
        - name: pod-tmp
          emptyDir: {}
        # 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
        - name: xtables-lock
          hostPath:
            path: /run/xtables.lock
            type: FileOrCreate
        # Used to install CNI.
        - name: cni-bin-dir
          hostPath:
            path: /opt/cni/bin
        - name: cni-net-dir
          hostPath:
            path: /etc/cni/net.d
        - name: calico-cert-dir
          hostPath:
            path: /etc/calico
        - name: calico-etc
          configMap:
            name: calico-etc
            defaultMode: 0444
        - name: calico-bird
          configMap:
            name: calico-bird
            defaultMode: 0444
        - name: calico-bin
          configMap:
            name: calico-bin
            defaultMode: 0555
        - name: calico-etcd-secrets
          secret:
            secretName: calico-etcd-secrets





      containers:
        # Runs calico/node container on each Kubernetes node.  This
        # container programs network policy and routes on each
        # host.
        - name: calico-node
{{ tuple $envAll "calico_node" | include "helm-toolkit.snippets.image" | indent 10 }}
{{ tuple $envAll $envAll.Values.pod.resources.calico_node | include "helm-toolkit.snippets.kubernetes_resources" | indent 10 }}
{{ dict "envAll" $envAll "application" "calico_node" "container" "calico_node" | include "helm-toolkit.snippets.kubernetes_container_security_context" | indent 10 }}
          env:
            # Values expanded explicitly from conf.node (some of which
            # might be derived from elsewhere, see values.yaml for an
            # explanation of this)
            #
{{ include "helm-toolkit.utils.to_k8s_env_vars" .Values.conf.node | indent 12 }}

            # Values explicit in the chart not expected to be found in
            # conf.node
            #

            # The location of the Calico etcd cluster.
            - name: ETCD_ENDPOINTS
              valueFrom:
                configMapKeyRef:
                  name: calico-etc
                  key: etcd_endpoints

            # etcd certs
{{ if .Values.endpoints.etcd.auth.client.tls.ca }}
            - name: ETCD_CA_CERT_FILE
              value: {{ .Values.endpoints.etcd.auth.client.path.ca }}
{{ end }}
{{ if .Values.endpoints.etcd.auth.client.tls.key }}
            - name: ETCD_KEY_FILE
              value: {{ .Values.endpoints.etcd.auth.client.path.key }}
{{ end }}
{{ if .Values.endpoints.etcd.auth.client.tls.crt }}
            - name: ETCD_CERT_FILE
              value: {{ .Values.endpoints.etcd.auth.client.path.crt }}
{{ end }}

            # Set noderef for node controller.
            - name: CALICO_K8S_NODE_REF
              valueFrom:
                fieldRef:
                  fieldPath: spec.nodeName

          livenessProbe:
            httpGet:
              path: /liveness
              port: 9099
              host: localhost
            periodSeconds: 10
            initialDelaySeconds: 10
            failureThreshold: 6

          # Only for Calico v3
          readinessProbe:
            exec:
              command:
              - /bin/calico-node
              - -bird-ready
              - -felix-ready
            periodSeconds: 10
          volumeMounts:
            - name: pod-tmp
              mountPath: /tmp
            - mountPath: /lib/modules
              name: lib-modules
              readOnly: true
            - mountPath: /run/xtables.lock
              name: xtables-lock
              readOnly: false
            - mountPath: /var/run/calico
              name: var-run-calico
              readOnly: false

            # bird template replacements
            # bird cfg
            - mountPath: /etc/calico/confd/templates/bird.cfg.template
              name: calico-bird
              subPath: bird.cfg.template
            # bird ipam
            - mountPath: /etc/calico/confd/templates/bird_ipam.cfg.template
              name: calico-bird
              subPath: bird_ipam.cfg.template
            # bird6 cfg
            - mountPath: /etc/calico/confd/templates/bird6.cfg.template
              name: calico-bird
              subPath: bird6.cfg.template
            # bird6 ipam
            - mountPath: /etc/calico/confd/templates/bird6_ipam.cfg.template
              name: calico-bird
              subPath: bird6_ipam.cfg.template
            # etcd secrets
            - mountPath: /var/lib/calico
              name: var-lib-calico
              readOnly: false
            - name: calico-etcd-secrets
              mountPath: {{ .Values.endpoints.etcd.auth.client.path.ca }}
              subPath: tls.ca
              readOnly: true
            - name: calico-etcd-secrets
              mountPath: {{ .Values.endpoints.etcd.auth.client.path.crt }}
              subPath: tls.crt
              readOnly: true
            - name: calico-etcd-secrets
              mountPath: {{ .Values.endpoints.etcd.auth.client.path.key }}
              subPath: tls.key
              readOnly: true

{{- end }}