calico.go

package templates

const CalicoTemplate = `
{{if eq .RBACConfig "rbac"}}
## start rbac here

kind: ClusterRole
apiVersion: rbac.authorization.k8s.io/v1beta1
metadata:
  name: calico-node
rules:
  - apiGroups: [""]
    resources:
      - namespaces
    verbs:
      - get
      - list
      - watch
  - apiGroups: [""]
    resources:
      - pods/status
    verbs:
      - update
  - apiGroups: [""]
    resources:
      - pods
    verbs:
      - get
      - list
      - watch
      - patch
  - apiGroups: [""]
    resources:
      - services
    verbs:
      - get
  - apiGroups: [""]
    resources:
      - endpoints
    verbs:
      - get
  - apiGroups: [""]
    resources:
      - nodes
    verbs:
      - get
      - list
      - update
      - watch
  - apiGroups: ["extensions"]
    resources:
      - networkpolicies
    verbs:
      - get
      - list
      - watch
  - apiGroups: ["networking.k8s.io"]
    resources:
      - networkpolicies
    verbs:
      - watch
      - list
  - apiGroups: ["crd.projectcalico.org"]
    resources:
      - globalfelixconfigs
      - felixconfigurations
      - bgppeers
      - globalbgpconfigs
      - bgpconfigurations
      - ippools
      - globalnetworkpolicies
      - globalnetworksets
      - networkpolicies
      - clusterinformations
      - hostendpoints
    verbs:
      - create
      - get
      - list
      - update
      - watch
---
apiVersion: rbac.authorization.k8s.io/v1beta1
kind: ClusterRoleBinding
metadata:
  name: calico-node
roleRef:
  apiGroup: rbac.authorization.k8s.io
  kind: ClusterRole
  name: calico-node
subjects:
- kind: ServiceAccount
  name: calico-node
  namespace: kube-system
- apiGroup: rbac.authorization.k8s.io
  kind: Group
  name: system:nodes
{{end}}
## end rbac here

---
kind: ConfigMap
apiVersion: v1
metadata:
 name: calico-config
 namespace: kube-system
data:
 # To enable Typha, set this to "calico-typha" *and* set a non-zero value for Typha replicas
 # below.  We recommend using Typha if you have more than 50 nodes. Above 100 nodes it is
 # essential.
 typha_service_name: "none"
 # The CNI network configuration to install on each node.
 cni_network_config: |-
    {
     "name": "k8s-pod-network",
     "cniVersion": "0.3.0",
     "plugins": [
       {
         "type": "calico",
         "log_level": "info",
         "datastore_type": "kubernetes",
         "nodename": "__KUBERNETES_NODE_NAME__",
         "mtu": 1500,
         "ipam": {
           "type": "host-local",
           "subnet": "usePodCidr"
         },
         "policy": {
           "type": "k8s",
           "k8s_auth_token": "__SERVICEACCOUNT_TOKEN__"
         },
         "kubernetes": {
           "k8s_api_root": "https://__KUBERNETES_SERVICE_HOST__:__KUBERNETES_SERVICE_PORT__",
           "kubeconfig": "{{.KubeCfg}}"
         }
       },
       {
         "type": "portmap",
         "snat": true,
         "capabilities": {"portMappings": true}
       }
     ]
    }

---

# 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
  updateStrategy:
    type: RollingUpdate
    rollingUpdate:
      maxUnavailable: 1
  template:
    metadata:
      labels:
        k8s-app: calico-node
      annotations:
        # 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: ''
    spec:
      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
        - key: "node-role.kubernetes.io/controlplane"
          operator: "Exists"
          effect: "NoSchedule"
        - key: "node-role.kubernetes.io/etcd"
          operator: "Exists"
          effect: "NoExecute"
      serviceAccountName: calico-node
      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: {{.NodeImage}}
          env:
            # Use Kubernetes API as the backing datastore.
            - name: DATASTORE_TYPE
              value: "kubernetes"
            # Enable felix info logging.
            - name: FELIX_LOGSEVERITYSCREEN
              value: "info"
            # Cluster type to identify the deployment type
            - name: CLUSTER_TYPE
              value: "k8s,bgp"
            # 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: "ACCEPT"
            # Disable IPV6 on Kubernetes.
            - name: FELIX_IPV6SUPPORT
              value: "false"
            # Set MTU for tunnel device used if ipip is enabled
            - name: FELIX_IPINIPMTU
              value: "1440"
            # Wait for the datastore.
            - name: WAIT_FOR_DATASTORE
              value: "true"
            # The default IPv4 pool to create on startup if none exists. Pod IPs will be
            # chosen from this range. Changing this value after installation will have
            # no effect. This should fall within --cluster-cidr.
            - name: CALICO_IPV4POOL_CIDR
              value: "{{.ClusterCIDR}}"
            # Enable IPIP
            - name: CALICO_IPV4POOL_IPIP
              value: "Always"
            # Enable IP-in-IP within Felix.
            - name: FELIX_IPINIPENABLED
              value: "true"
            # Typha support: controlled by the ConfigMap.
            - name: FELIX_TYPHAK8SSERVICENAME
              valueFrom:
                configMapKeyRef:
                  name: calico-config
                  key: typha_service_name
            # Set based on the k8s node name.
            - name: NODENAME
              valueFrom:
                fieldRef:
                  fieldPath: spec.nodeName
            # Auto-detect the BGP IP address.
            - name: IP
              value: "autodetect"
            - name: FELIX_HEALTHENABLED
              value: "true"
          securityContext:
            privileged: true
          resources:
            requests:
              cpu: 250m
          livenessProbe:
            httpGet:
              path: /liveness
              port: 9099
            periodSeconds: 10
            initialDelaySeconds: 10
            failureThreshold: 6
          readinessProbe:
            httpGet:
              path: /readiness
              port: 9099
            periodSeconds: 10
          volumeMounts:
            - mountPath: /lib/modules
              name: lib-modules
              readOnly: true
            - mountPath: /var/run/calico
              name: var-run-calico
              readOnly: false
            - mountPath: /var/lib/calico
              name: var-lib-calico
              readOnly: false
        # This container installs the Calico CNI binaries
        # and CNI network config file on each node.
        - name: install-cni
          image: {{.CNIImage}}
          command: ["/install-cni.sh"]
          env:
            # Name of the CNI config file to create.
            - name: CNI_CONF_NAME
              value: "10-calico.conflist"
            # The CNI network config to install on each node.
            - name: CNI_NETWORK_CONFIG
              valueFrom:
                configMapKeyRef:
                  name: calico-config
                  key: cni_network_config
            # Set the hostname based on the k8s node name.
            - name: KUBERNETES_NODE_NAME
              valueFrom:
                fieldRef:
                  fieldPath: spec.nodeName
          volumeMounts:
            - mountPath: /host/opt/cni/bin
              name: cni-bin-dir
            - mountPath: /host/etc/cni/net.d
              name: cni-net-dir
      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

# Create all the CustomResourceDefinitions needed for
# Calico policy and networking mode.
---

apiVersion: apiextensions.k8s.io/v1beta1
description: Calico Felix Configuration
kind: CustomResourceDefinition
metadata:
   name: felixconfigurations.crd.projectcalico.org
spec:
  scope: Cluster
  group: crd.projectcalico.org
  version: v1
  names:
    kind: FelixConfiguration
    plural: felixconfigurations
    singular: felixconfiguration

---
apiVersion: apiextensions.k8s.io/v1beta1
description: Calico BGP Peers
kind: CustomResourceDefinition
metadata:
  name: bgppeers.crd.projectcalico.org
spec:
  scope: Cluster
  group: crd.projectcalico.org
  version: v1
  names:
    kind: BGPPeer
    plural: bgppeers
    singular: bgppeer

---

apiVersion: apiextensions.k8s.io/v1beta1
description: Calico BGP Configuration
kind: CustomResourceDefinition
metadata:
  name: bgpconfigurations.crd.projectcalico.org
spec:
  scope: Cluster
  group: crd.projectcalico.org
  version: v1
  names:
    kind: BGPConfiguration
    plural: bgpconfigurations
    singular: bgpconfiguration

---

apiVersion: apiextensions.k8s.io/v1beta1
description: Calico IP Pools
kind: CustomResourceDefinition
metadata:
  name: ippools.crd.projectcalico.org
spec:
  scope: Cluster
  group: crd.projectcalico.org
  version: v1
  names:
    kind: IPPool
    plural: ippools
    singular: ippool

---

apiVersion: apiextensions.k8s.io/v1beta1
description: Calico HostEndpoints
kind: CustomResourceDefinition
metadata:
  name: hostendpoints.crd.projectcalico.org
spec:
  scope: Cluster
  group: crd.projectcalico.org
  version: v1
  names:
    kind: HostEndpoint
    plural: hostendpoints
    singular: hostendpoint

---

apiVersion: apiextensions.k8s.io/v1beta1
description: Calico Cluster Information
kind: CustomResourceDefinition
metadata:
  name: clusterinformations.crd.projectcalico.org
spec:
  scope: Cluster
  group: crd.projectcalico.org
  version: v1
  names:
    kind: ClusterInformation
    plural: clusterinformations
    singular: clusterinformation

---

apiVersion: apiextensions.k8s.io/v1beta1
description: Calico Global Network Policies
kind: CustomResourceDefinition
metadata:
  name: globalnetworkpolicies.crd.projectcalico.org
spec:
  scope: Cluster
  group: crd.projectcalico.org
  version: v1
  names:
    kind: GlobalNetworkPolicy
    plural: globalnetworkpolicies
    singular: globalnetworkpolicy

---

apiVersion: apiextensions.k8s.io/v1beta1
description: Calico Global Network Sets
kind: CustomResourceDefinition
metadata:
  name: globalnetworksets.crd.projectcalico.org
spec:
  scope: Cluster
  group: crd.projectcalico.org
  version: v1
  names:
    kind: GlobalNetworkSet
    plural: globalnetworksets
    singular: globalnetworkset

---

apiVersion: apiextensions.k8s.io/v1beta1
description: Calico Network Policies
kind: CustomResourceDefinition
metadata:
  name: networkpolicies.crd.projectcalico.org
spec:
  scope: Namespaced
  group: crd.projectcalico.org
  version: v1
  names:
    kind: NetworkPolicy
    plural: networkpolicies
    singular: networkpolicy

---
apiVersion: v1
kind: ServiceAccount
metadata:
  name: calico-node
  namespace: kube-system


{{if ne .CloudProvider "none"}}
---
kind: ConfigMap
apiVersion: v1
metadata:
  name: {{.CloudProvider}}-ippool
  namespace: kube-system
data:
  {{.CloudProvider}}-ippool: |-
    apiVersion: projectcalico.org/v3
    kind: IPPool
    metadata:
      name: ippool-ipip-1
    spec:
      cidr: {{.ClusterCIDR}}
      ipipMode: Always
      natOutgoing: true
---
apiVersion: v1
kind: Pod
metadata:
  name: calicoctl
  namespace: kube-system
spec:
  hostNetwork: true
  restartPolicy: OnFailure
  containers:
  - name: calicoctl
    image: {{.Calicoctl}}
    command: ["/bin/sh", "-c", "calicoctl apply -f {{.CloudProvider}}-ippool.yaml"]
    env:
    - name: DATASTORE_TYPE
      value: kubernetes
    volumeMounts:
    - name: ippool-config
      mountPath: /root/
  volumes:
  - name: ippool-config
    configMap:
      name: {{.CloudProvider}}-ippool
      items:
        - key: {{.CloudProvider}}-ippool
          path: {{.CloudProvider}}-ippool.yaml
  # Mount in the etcd TLS secrets.
{{end}}
`