mirror of https://git.rancher.io/charts
255 lines
9.1 KiB
YAML
255 lines
9.1 KiB
YAML
---
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# Source: calico/templates/calico-node.yaml
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# This manifest installs the canal container, as well
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# as the CNI plugins and network config on
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# each master and worker node in a Kubernetes cluster.
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kind: DaemonSet
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apiVersion: apps/v1
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metadata:
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name: {{ .Release.Name | quote }}
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namespace: kube-system
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labels:
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k8s-app: canal
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spec:
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selector:
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matchLabels:
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k8s-app: canal
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updateStrategy:
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type: RollingUpdate
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rollingUpdate:
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maxUnavailable: 1
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template:
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metadata:
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labels:
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k8s-app: canal
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annotations:
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# This, along with the CriticalAddonsOnly toleration below,
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# marks the pod as a critical add-on, ensuring it gets
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# priority scheduling and that its resources are reserved
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# if it ever gets evicted.
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scheduler.alpha.kubernetes.io/critical-pod: ''
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spec:
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nodeSelector:
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kubernetes.io/os: linux
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hostNetwork: true
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tolerations:
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# Make sure canal gets scheduled on all nodes.
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- effect: NoSchedule
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operator: Exists
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# Mark the pod as a critical add-on for rescheduling.
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- key: CriticalAddonsOnly
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operator: Exists
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- effect: NoExecute
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operator: Exists
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serviceAccountName: canal
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# Minimize downtime during a rolling upgrade or deletion; tell Kubernetes to do a "force
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# deletion": https://kubernetes.io/docs/concepts/workloads/pods/pod/#termination-of-pods.
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terminationGracePeriodSeconds: 0
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priorityClassName: system-node-critical
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initContainers:
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# This container installs the CNI binaries
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# and CNI network config file on each node.
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- name: install-cni
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image: {{ .Values.calico.cniImage }}:{{ .Values.calico.imageTag }}
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command: ["/install-cni.sh"]
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env:
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# Name of the CNI config file to create.
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- name: CNI_CONF_NAME
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value: "10-canal.conflist"
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# The CNI network config to install on each node.
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- name: CNI_NETWORK_CONFIG
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valueFrom:
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configMapKeyRef:
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name: canal-config
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key: cni_network_config
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# Set the hostname based on the k8s node name.
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- name: KUBERNETES_NODE_NAME
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valueFrom:
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fieldRef:
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fieldPath: spec.nodeName
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# CNI MTU Config variable
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- name: CNI_MTU
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valueFrom:
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configMapKeyRef:
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name: canal-config
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key: veth_mtu
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# Prevents the container from sleeping forever.
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- name: SLEEP
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value: "false"
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volumeMounts:
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- mountPath: /host/opt/cni/bin
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name: cni-bin-dir
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- mountPath: /host/etc/cni/net.d
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name: cni-net-dir
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securityContext:
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privileged: true
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# Adds a Flex Volume Driver that creates a per-pod Unix Domain Socket to allow Dikastes
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# to communicate with Felix over the Policy Sync API.
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- name: flexvol-driver
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image: {{ .Values.calico.flexvolImage }}:{{ .Values.calico.imageTag }}
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volumeMounts:
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- name: flexvol-driver-host
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mountPath: /host/driver
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securityContext:
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privileged: true
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containers:
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# Runs canal container on each Kubernetes node. This
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# container programs network policy and routes on each
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# host.
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- name: calico-node
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command:
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- "start_runit"
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image: {{ .Values.calico.nodeImage }}:{{ .Values.calico.imageTag }}
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env:
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# Use Kubernetes API as the backing datastore.
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- name: DATASTORE_TYPE
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value: {{ .Values.calico.datastoreType | quote }}
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# Configure route aggregation based on pod CIDR.
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- name: USE_POD_CIDR
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value: {{ .Values.calico.usePodCIDR | quote }}
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# Wait for the datastore.
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- name: WAIT_FOR_DATASTORE
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value: {{ .Values.calico.waitForDatastore | quote }}
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# Set based on the k8s node name.
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- name: NODENAME
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valueFrom:
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fieldRef:
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fieldPath: spec.nodeName
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# Don't enable BGP.
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- name: CALICO_NETWORKING_BACKEND
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value: {{ .Values.calico.networkingBackend | quote }}
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# Cluster type to identify the deployment type
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- name: CLUSTER_TYPE
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value: {{ .Values.calico.clusterType | quote}}
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# Period, in seconds, at which felix re-applies all iptables state
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- name: FELIX_IPTABLESREFRESHINTERVAL
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value: {{ .Values.calico.felixIptablesRefreshInterval | quote}}
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# No IP address needed.
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- name: IP
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value: ""
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# The default IPv4 pool to create on startup if none exists. Pod IPs will be
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# chosen from this range. Changing this value after installation will have
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# no effect. This should fall within `--cluster-cidr`.
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# - name: CALICO_IPV4POOL_CIDR
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# value: "192.168.0.0/16"
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# Disable file logging so `kubectl logs` works.
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- name: CALICO_DISABLE_FILE_LOGGING
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value: "true"
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# Set Felix endpoint to host default action to ACCEPT.
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- name: FELIX_DEFAULTENDPOINTTOHOSTACTION
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value: {{ .Values.calico.felixDefaultEndpointToHostAction | quote }}
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# Disable IPv6 on Kubernetes.
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- name: FELIX_IPV6SUPPORT
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value: {{ .Values.calico.felixIpv6Support | quote }}
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# Set Felix logging to "info"
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- name: FELIX_LOGSEVERITYSCREEN
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value: {{ .Values.calico.felixLogSeverityScreen | quote }}
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- name: FELIX_HEALTHENABLED
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value: {{ .Values.calico.felixHealthEnabled | quote }}
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securityContext:
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privileged: true
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resources:
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requests:
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cpu: 250m
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livenessProbe:
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exec:
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command:
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- /bin/calico-node
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- -felix-live
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periodSeconds: 10
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initialDelaySeconds: 10
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failureThreshold: 6
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readinessProbe:
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httpGet:
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path: /readiness
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port: 9099
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host: localhost
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periodSeconds: 10
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volumeMounts:
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- mountPath: /lib/modules
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name: lib-modules
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readOnly: true
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- mountPath: /run/xtables.lock
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name: xtables-lock
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readOnly: false
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- mountPath: /var/run/calico
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name: var-run-calico
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readOnly: false
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- mountPath: /var/lib/calico
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name: var-lib-calico
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readOnly: false
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- name: policysync
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mountPath: /var/run/nodeagent
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# This container runs flannel using the kube-subnet-mgr backend
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# for allocating subnets.
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- name: kube-flannel
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image: {{ .Values.flannel.image }}:{{ .Values.flannel.imageTag }}
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command:
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- "/opt/bin/flanneld"
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{{- range .Values.flannel.args }}
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- {{ . | quote }}
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{{- end }}
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securityContext:
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privileged: true
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env:
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- name: POD_NAME
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valueFrom:
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fieldRef:
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fieldPath: metadata.name
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- name: POD_NAMESPACE
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valueFrom:
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fieldRef:
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fieldPath: metadata.namespace
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- name: FLANNELD_IFACE
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valueFrom:
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configMapKeyRef:
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name: canal-config
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key: canal_iface
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- name: FLANNELD_IP_MASQ
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valueFrom:
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configMapKeyRef:
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name: canal-config
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key: masquerade
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volumeMounts:
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- mountPath: /run/xtables.lock
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name: xtables-lock
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readOnly: false
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- name: flannel-cfg
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mountPath: /etc/kube-flannel/
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volumes:
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# Used by canal.
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- name: lib-modules
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hostPath:
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path: /lib/modules
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- name: var-run-calico
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hostPath:
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path: /var/run/calico
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- name: var-lib-calico
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hostPath:
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path: /var/lib/calico
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- name: xtables-lock
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hostPath:
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path: /run/xtables.lock
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type: FileOrCreate
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# Used by flannel.
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- name: flannel-cfg
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configMap:
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name: canal-config
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# Used to install CNI.
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- name: cni-bin-dir
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hostPath:
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path: /opt/cni/bin
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- name: cni-net-dir
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hostPath:
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path: /etc/cni/net.d
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# Used to create per-pod Unix Domain Sockets
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- name: policysync
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hostPath:
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type: DirectoryOrCreate
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path: /var/run/nodeagent
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# Used to install Flex Volume Driver
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- name: flexvol-driver-host
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hostPath:
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type: DirectoryOrCreate
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path: /usr/libexec/kubernetes/kubelet-plugins/volume/exec/nodeagent~uds
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