---
# Source: calico/templates/calico-kube-controllers.yaml
# This manifest creates a Pod Disruption Budget for Controller to allow K8s Cluster Autoscaler to evict

apiVersion: policy/v1
kind: PodDisruptionBudget
metadata:
  name: calico-kube-controllers
  namespace: kube-system
  labels:
    k8s-app: calico-kube-controllers
spec:
  maxUnavailable: 1
  selector:
    matchLabels:
      k8s-app: calico-kube-controllers
---
# Source: calico/templates/calico-typha.yaml
# This manifest creates a Pod Disruption Budget for Typha to allow K8s Cluster Autoscaler to evict

apiVersion: policy/v1
kind: PodDisruptionBudget
metadata:
  name: calico-typha
  namespace: kube-system
  labels:
    k8s-app: calico-typha
spec:
  maxUnavailable: 1
  selector:
    matchLabels:
      k8s-app: calico-typha
---
# Source: calico/templates/calico-kube-controllers.yaml
apiVersion: v1
kind: ServiceAccount
metadata:
  name: calico-kube-controllers
  namespace: kube-system
---
# Source: calico/templates/calico-node.yaml
apiVersion: v1
kind: ServiceAccount
metadata:
  name: calico-node
  namespace: kube-system
---
# Source: calico/templates/calico-node.yaml
apiVersion: v1
kind: ServiceAccount
metadata:
  name: calico-cni-plugin
  namespace: kube-system
---
# Source: calico/templates/calico-config.yaml
# This ConfigMap is used to configure a self-hosted Calico installation.
kind: ConfigMap
apiVersion: v1
metadata:
  name: calico-config
  namespace: kube-system
data:
  # You must set a non-zero value for Typha replicas below.
  typha_service_name: "calico-typha"
  # Configure the backend to use.
  calico_backend: "bird"

  # Configure the MTU to use for workload interfaces and tunnels.
  # By default, MTU is auto-detected, and explicitly setting this field should not be required.
  # You can override auto-detection by providing a non-zero value.
  veth_mtu: "0"

  # The CNI network configuration to install on each node. The special
  # values in this config will be automatically populated.
  cni_network_config: |-
    {
      "name": "k8s-pod-network",
      "cniVersion": "0.3.1",
      "plugins": [
        {
          "type": "calico",
          "log_level": "info",
          "log_file_path": "/var/log/calico/cni/cni.log",
          "datastore_type": "kubernetes",
          "nodename": "__KUBERNETES_NODE_NAME__",
          "mtu": __CNI_MTU__,
          "ipam": {
              "type": "calico-ipam"
          },
          "policy": {
              "type": "k8s"
          },
          "kubernetes": {
              "kubeconfig": "__KUBECONFIG_FILEPATH__"
          }
        },
        {
          "type": "portmap",
          "snat": true,
          "capabilities": {"portMappings": true}
        },
        {
          "type": "bandwidth",
          "capabilities": {"bandwidth": true}
        }
      ]
    }
---
# Source: calico/templates/calico-kube-controllers-rbac.yaml
# Include a clusterrole for the kube-controllers component,
# and bind it to the calico-kube-controllers serviceaccount.
kind: ClusterRole
apiVersion: rbac.authorization.k8s.io/v1
metadata:
  name: calico-kube-controllers
rules:
  # Nodes are watched to monitor for deletions.
  - apiGroups: [""]
    resources:
      - nodes
    verbs:
      - watch
      - list
      - get
  # Pods are watched to check for existence as part of IPAM controller.
  - apiGroups: [""]
    resources:
      - pods
    verbs:
      - get
      - list
      - watch
  # IPAM resources are manipulated in response to node and block updates, as well as periodic triggers.
  - apiGroups: ["crd.projectcalico.org"]
    resources:
      - ipreservations
    verbs:
      - list
  - apiGroups: ["crd.projectcalico.org"]
    resources:
      - blockaffinities
      - ipamblocks
      - ipamhandles
      - tiers
    verbs:
      - get
      - list
      - create
      - update
      - delete
      - watch
  # Pools are watched to maintain a mapping of blocks to IP pools.
  - apiGroups: ["crd.projectcalico.org"]
    resources:
      - ippools
    verbs:
      - list
      - watch
  # kube-controllers manages hostendpoints.
  - apiGroups: ["crd.projectcalico.org"]
    resources:
      - hostendpoints
    verbs:
      - get
      - list
      - create
      - update
      - delete
  # Needs access to update clusterinformations.
  - apiGroups: ["crd.projectcalico.org"]
    resources:
      - clusterinformations
    verbs:
      - get
      - list
      - create
      - update
      - watch
  # KubeControllersConfiguration is where it gets its config
  - apiGroups: ["crd.projectcalico.org"]
    resources:
      - kubecontrollersconfigurations
    verbs:
      # read its own config
      - get
      # create a default if none exists
      - create
      # update status
      - update
      # watch for changes
      - watch
---
# Source: calico/templates/calico-node-rbac.yaml
# Include a clusterrole for the calico-node DaemonSet,
# and bind it to the calico-node serviceaccount.
kind: ClusterRole
apiVersion: rbac.authorization.k8s.io/v1
metadata:
  name: calico-node
rules:
  # Used for creating service account tokens to be used by the CNI plugin
  - apiGroups: [""]
    resources:
      - serviceaccounts/token
    resourceNames:
      - calico-cni-plugin
    verbs:
      - create
  # The CNI plugin needs to get pods, nodes, and namespaces.
  - apiGroups: [""]
    resources:
      - pods
      - nodes
      - namespaces
    verbs:
      - get
  # EndpointSlices are used for Service-based network policy rule
  # enforcement.
  - apiGroups: ["discovery.k8s.io"]
    resources:
      - endpointslices
    verbs:
      - watch
      - list
  - apiGroups: [""]
    resources:
      - endpoints
      - services
    verbs:
      # Used to discover service IPs for advertisement.
      - watch
      - list
      # Used to discover Typhas.
      - get
  # Pod CIDR auto-detection on kubeadm needs access to config maps.
  - apiGroups: [""]
    resources:
      - configmaps
    verbs:
      - get
  - apiGroups: [""]
    resources:
      - nodes/status
    verbs:
      # Needed for clearing NodeNetworkUnavailable flag.
      - patch
      # Calico stores some configuration information in node annotations.
      - update
  # Watch for changes to Kubernetes NetworkPolicies.
  - apiGroups: ["networking.k8s.io"]
    resources:
      - networkpolicies
    verbs:
      - watch
      - list
  # Watch for changes to Kubernetes AdminNetworkPolicies.
  - apiGroups: ["policy.networking.k8s.io"]
    resources:
      - adminnetworkpolicies
    verbs:
      - watch
      - list
  # Used by Calico for policy information.
  - apiGroups: [""]
    resources:
      - pods
      - namespaces
      - serviceaccounts
    verbs:
      - list
      - watch
  # The CNI plugin patches pods/status.
  - apiGroups: [""]
    resources:
      - pods/status
    verbs:
      - patch
  # Calico monitors various CRDs for config.
  - apiGroups: ["crd.projectcalico.org"]
    resources:
      - globalfelixconfigs
      - felixconfigurations
      - bgppeers
      - bgpfilters
      - globalbgpconfigs
      - bgpconfigurations
      - ippools
      - ipreservations
      - ipamblocks
      - globalnetworkpolicies
      - globalnetworksets
      - networkpolicies
      - networksets
      - clusterinformations
      - hostendpoints
      - blockaffinities
      - caliconodestatuses
      - tiers
    verbs:
      - get
      - list
      - watch
   # Calico creates some tiers on startup.
  - apiGroups: ["crd.projectcalico.org"]
    resources:
      - tiers
    verbs:
      - create
  # Calico must create and update some CRDs on startup.
  - apiGroups: ["crd.projectcalico.org"]
    resources:
      - ippools
      - felixconfigurations
      - clusterinformations
    verbs:
      - create
      - update
  # Calico must update some CRDs.
  - apiGroups: ["crd.projectcalico.org"]
    resources:
      - caliconodestatuses
    verbs:
      - update
  # Calico stores some configuration information on the node.
  - apiGroups: [""]
    resources:
      - nodes
    verbs:
      - get
      - list
      - watch
  # These permissions are only required for upgrade from v2.6, and can
  # be removed after upgrade or on fresh installations.
  - apiGroups: ["crd.projectcalico.org"]
    resources:
      - bgpconfigurations
      - bgppeers
    verbs:
      - create
      - update
  # These permissions are required for Calico CNI to perform IPAM allocations.
  - apiGroups: ["crd.projectcalico.org"]
    resources:
      - blockaffinities
      - ipamblocks
      - ipamhandles
    verbs:
      - get
      - list
      - create
      - update
      - delete
  # The CNI plugin and calico/node need to be able to create a default
  # IPAMConfiguration
  - apiGroups: ["crd.projectcalico.org"]
    resources:
      - ipamconfigs
    verbs:
      - get
      - create
  # Block affinities must also be watchable by confd for route aggregation.
  - apiGroups: ["crd.projectcalico.org"]
    resources:
      - blockaffinities
    verbs:
      - watch
  # The Calico IPAM migration needs to get daemonsets. These permissions can be
  # removed if not upgrading from an installation using host-local IPAM.
  - apiGroups: ["apps"]
    resources:
      - daemonsets
    verbs:
      - get
---
# Source: calico/templates/calico-node-rbac.yaml
# CNI cluster role
kind: ClusterRole
apiVersion: rbac.authorization.k8s.io/v1
metadata:
  name: calico-cni-plugin
rules:
  - apiGroups: [""]
    resources:
      - pods
      - nodes
      - namespaces
    verbs:
      - get
  - apiGroups: [""]
    resources:
      - pods/status
    verbs:
      - patch
  - apiGroups: ["crd.projectcalico.org"]
    resources:
      - blockaffinities
      - ipamblocks
      - ipamhandles
      - clusterinformations
      - ippools
      - ipreservations
      - ipamconfigs
    verbs:
      - get
      - list
      - create
      - update
      - delete
---
# Source: calico/templates/calico-kube-controllers-rbac.yaml
kind: ClusterRoleBinding
apiVersion: rbac.authorization.k8s.io/v1
metadata:
  name: calico-kube-controllers
roleRef:
  apiGroup: rbac.authorization.k8s.io
  kind: ClusterRole
  name: calico-kube-controllers
subjects:
- kind: ServiceAccount
  name: calico-kube-controllers
  namespace: kube-system
---
# Source: calico/templates/calico-node-rbac.yaml
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: calico-node
  namespace: kube-system
---
# Source: calico/templates/calico-node-rbac.yaml
apiVersion: rbac.authorization.k8s.io/v1
kind: ClusterRoleBinding
metadata:
  name: calico-cni-plugin
roleRef:
  apiGroup: rbac.authorization.k8s.io
  kind: ClusterRole
  name: calico-cni-plugin
subjects:
- kind: ServiceAccount
  name: calico-cni-plugin
  namespace: kube-system
---
# Source: calico/templates/calico-typha.yaml
# This manifest creates a Service, which will be backed by Calico's Typha daemon.
# Typha sits in between Felix and the API server, reducing Calico's load on the API server.

apiVersion: v1
kind: Service
metadata:
  name: calico-typha
  namespace: kube-system
  labels:
    k8s-app: calico-typha
spec:
  ports:
    - port: 5473
      protocol: TCP
      targetPort: calico-typha
      name: calico-typha
  selector:
    k8s-app: calico-typha
---
# Source: calico/templates/calico-node.yaml
# This manifest installs the calico-node container, as well
# as the CNI plugins and network config on
# each master and worker node in a Kubernetes cluster.
kind: DaemonSet
apiVersion: apps/v1
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
    spec:
      nodeSelector:
        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: calico-node
      securityContext:
        seccompProfile:
          type: RuntimeDefault
      # 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
      priorityClassName: system-node-critical
      initContainers:
        # This container performs upgrade from host-local IPAM to calico-ipam.
        # It can be deleted if this is a fresh installation, or if you have already
        # upgraded to use calico-ipam.
        - name: upgrade-ipam
          image: docker.io/calico/cni:latest-amd64
          imagePullPolicy: Never
          command: ["/opt/cni/bin/calico-ipam", "-upgrade"]
          envFrom:
          - configMapRef:
              # Allow KUBERNETES_SERVICE_HOST and KUBERNETES_SERVICE_PORT to be overridden for eBPF mode.
              name: kubernetes-services-endpoint
              optional: true
          env:
            - name: KUBERNETES_NODE_NAME
              valueFrom:
                fieldRef:
                  fieldPath: spec.nodeName
            - name: CALICO_NETWORKING_BACKEND
              valueFrom:
                configMapKeyRef:
                  name: calico-config
                  key: calico_backend
          volumeMounts:
            - mountPath: /var/lib/cni/networks
              name: host-local-net-dir
            - mountPath: /host/opt/cni/bin
              name: cni-bin-dir
          securityContext:
            privileged: true
        # This container installs the CNI binaries
        # and CNI network config file on each node.
        - name: install-cni
          image: docker.io/calico/cni:latest-amd64
          imagePullPolicy: Never
          command: ["/opt/cni/bin/install"]
          envFrom:
          - configMapRef:
              # Allow KUBERNETES_SERVICE_HOST and KUBERNETES_SERVICE_PORT to be overridden for eBPF mode.
              name: kubernetes-services-endpoint
              optional: true
          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
            # CNI MTU Config variable
            - name: CNI_MTU
              valueFrom:
                configMapKeyRef:
                  name: calico-config
                  key: veth_mtu
            # Prevents the container from sleeping forever.
            - name: SLEEP
              value: "false"
          volumeMounts:
            - mountPath: /host/opt/cni/bin
              name: cni-bin-dir
            - mountPath: /host/etc/cni/net.d
              name: cni-net-dir
          securityContext:
            privileged: true
        # This init container mounts the necessary filesystems needed by the BPF data plane
        # i.e. bpf at /sys/fs/bpf and cgroup2 at /run/calico/cgroup. Calico-node initialisation is executed
        # in best effort fashion, i.e. no failure for errors, to not disrupt pod creation in iptable mode.
        - name: "mount-bpffs"
          image: docker.io/library/node:latest-amd64
          imagePullPolicy: Never
          command: ["calico-node", "-init", "-best-effort"]
          volumeMounts:
            - mountPath: /sys/fs
              name: sys-fs
              # Bidirectional is required to ensure that the new mount we make at /sys/fs/bpf propagates to the host
              # so that it outlives the init container.
              mountPropagation: Bidirectional
            - mountPath: /var/run/calico
              name: var-run-calico
              # Bidirectional is required to ensure that the new mount we make at /run/calico/cgroup propagates to the host
              # so that it outlives the init container.
              mountPropagation: Bidirectional
            # Mount /proc/ from host which usually is an init program at /nodeproc. It's needed by mountns binary,
            # executed by calico-node, to mount root cgroup2 fs at /run/calico/cgroup to attach CTLB programs correctly.
            - mountPath: /nodeproc
              name: nodeproc
              readOnly: true
          securityContext:
            privileged: true
      containers:
        # Runs calico-node container on each Kubernetes node. This
        # container programs network policy and routes on each
        # host.
        - name: calico-node
          image: docker.io/library/node:latest-amd64
          imagePullPolicy: Never
          envFrom:
          - configMapRef:
              # Allow KUBERNETES_SERVICE_HOST and KUBERNETES_SERVICE_PORT to be overridden for eBPF mode.
              name: kubernetes-services-endpoint
              optional: true
          env:
            # Use Kubernetes API as the backing datastore.
            - name: DATASTORE_TYPE
              value: "kubernetes"
            # Typha support: controlled by the ConfigMap.
            - name: FELIX_TYPHAK8SSERVICENAME
              valueFrom:
                configMapKeyRef:
                  name: calico-config
                  key: typha_service_name
            # Wait for the datastore.
            - name: WAIT_FOR_DATASTORE
              value: "true"
            # Set based on the k8s node name.
            - name: NODENAME
              valueFrom:
                fieldRef:
                  fieldPath: spec.nodeName
            # 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
              value: "k8s,bgp"
            # Auto-detect the BGP IP address.
            - name: IP
              value: "autodetect"
            # Enable IPIP
            - name: CALICO_IPV4POOL_IPIP
              value: "Always"
            # Enable or Disable VXLAN on the default IP pool.
            - name: CALICO_IPV4POOL_VXLAN
              value: "Never"
            # Enable or Disable VXLAN on the default IPv6 IP pool.
            - name: CALICO_IPV6POOL_VXLAN
              value: "Never"
            # Set MTU for tunnel device used if ipip is enabled
            - name: FELIX_IPINIPMTU
              valueFrom:
                configMapKeyRef:
                  name: calico-config
                  key: veth_mtu
            # Set MTU for the VXLAN tunnel device.
            - name: FELIX_VXLANMTU
              valueFrom:
                configMapKeyRef:
                  name: calico-config
                  key: veth_mtu
            # Set MTU for the Wireguard tunnel device.
            - name: FELIX_WIREGUARDMTU
              valueFrom:
                configMapKeyRef:
                  name: calico-config
                  key: veth_mtu
            # 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: "192.168.0.0/16"
            # 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"
            - name: FELIX_HEALTHENABLED
              value: "true"
          securityContext:
            privileged: true
          resources:
            requests:
              cpu: 250m
          lifecycle:
            preStop:
              exec:
                command:
                - /bin/calico-node
                - -shutdown
          livenessProbe:
            exec:
              command:
              - /bin/calico-node
              - -felix-live
              - -bird-live
            periodSeconds: 10
            initialDelaySeconds: 10
            failureThreshold: 6
            timeoutSeconds: 10
          readinessProbe:
            exec:
              command:
              - /bin/calico-node
              - -felix-ready
              - -bird-ready
            periodSeconds: 10
            timeoutSeconds: 10
          volumeMounts:
            # For maintaining CNI plugin API credentials.
            - mountPath: /host/etc/cni/net.d
              name: cni-net-dir
              readOnly: false
            - 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
            - mountPath: /var/lib/calico
              name: var-lib-calico
              readOnly: false
            - name: policysync
              mountPath: /var/run/nodeagent
            # For eBPF mode, we need to be able to mount the BPF filesystem at /sys/fs/bpf so we mount in the
            # parent directory.
            - name: bpffs
              mountPath: /sys/fs/bpf
            - name: cni-log-dir
              mountPath: /var/log/calico/cni
              readOnly: true
      volumes:
        # Used by calico-node.
        - name: lib-modules
          hostPath:
            path: /lib/modules
        - name: var-run-calico
          hostPath:
            path: /var/run/calico
            type: DirectoryOrCreate
        - name: var-lib-calico
          hostPath:
            path: /var/lib/calico
            type: DirectoryOrCreate
        - name: xtables-lock
          hostPath:
            path: /run/xtables.lock
            type: FileOrCreate
        - name: sys-fs
          hostPath:
            path: /sys/fs/
            type: DirectoryOrCreate
        - name: bpffs
          hostPath:
            path: /sys/fs/bpf
            type: Directory
        # mount /proc at /nodeproc to be used by mount-bpffs initContainer to mount root cgroup2 fs.
        - name: nodeproc
          hostPath:
            path: /proc
        # Used to install CNI.
        - name: cni-bin-dir
          hostPath:
            path: /opt/cni/bin
            type: DirectoryOrCreate
        - name: cni-net-dir
          hostPath:
            path: /etc/cni/net.d
        # Used to access CNI logs.
        - name: cni-log-dir
          hostPath:
            path: /var/log/calico/cni
        # Mount in the directory for host-local IPAM allocations. This is
        # used when upgrading from host-local to calico-ipam, and can be removed
        # if not using the upgrade-ipam init container.
        - name: host-local-net-dir
          hostPath:
            path: /var/lib/cni/networks
        # Used to create per-pod Unix Domain Sockets
        - name: policysync
          hostPath:
            type: DirectoryOrCreate
            path: /var/run/nodeagent
---
# Source: calico/templates/calico-kube-controllers.yaml
# See https://github.com/projectcalico/kube-controllers
apiVersion: apps/v1
kind: Deployment
metadata:
  name: calico-kube-controllers
  namespace: kube-system
  labels:
    k8s-app: calico-kube-controllers
spec:
  # The controllers can only have a single active instance.
  replicas: 1
  selector:
    matchLabels:
      k8s-app: calico-kube-controllers
  strategy:
    type: Recreate
  template:
    metadata:
      name: calico-kube-controllers
      namespace: kube-system
      labels:
        k8s-app: calico-kube-controllers
    spec:
      nodeSelector:
        kubernetes.io/os: linux
      tolerations:
        # Mark the pod as a critical add-on for rescheduling.
        - key: CriticalAddonsOnly
          operator: Exists
        - key: node-role.kubernetes.io/master
          effect: NoSchedule
        - key: node-role.kubernetes.io/control-plane
          effect: NoSchedule
      serviceAccountName: calico-kube-controllers
      securityContext:
        seccompProfile:
          type: RuntimeDefault
      priorityClassName: system-cluster-critical
      containers:
        - name: calico-kube-controllers
          image: docker.io/calico/kube-controllers:latest-amd64
          imagePullPolicy: Never
          env:
            # Choose which controllers to run.
            - name: ENABLED_CONTROLLERS
              value: node
            - name: DATASTORE_TYPE
              value: kubernetes
          livenessProbe:
            exec:
              command:
              - /usr/bin/check-status
              - -l
            periodSeconds: 10
            initialDelaySeconds: 10
            failureThreshold: 6
            timeoutSeconds: 10
          readinessProbe:
            exec:
              command:
              - /usr/bin/check-status
              - -r
            periodSeconds: 10
          securityContext:
            runAsNonRoot: true
---
# Source: calico/templates/calico-typha.yaml
# This manifest creates a Deployment of Typha to back the above service.

apiVersion: apps/v1
kind: Deployment
metadata:
  name: calico-typha
  namespace: kube-system
  labels:
    k8s-app: calico-typha
spec:
  # Number of Typha replicas. To enable Typha, set this to a non-zero value *and* set the
  # typha_service_name variable in the calico-config ConfigMap above.
  #
  # We recommend using Typha if you have more than 50 nodes. Above 100 nodes it is essential
  # (when using the Kubernetes datastore). Use one replica for every 100-200 nodes. In
  # production, we recommend running at least 3 replicas to reduce the impact of rolling upgrade.
  replicas: 1
  revisionHistoryLimit: 2
  selector:
    matchLabels:
      k8s-app: calico-typha
  strategy:
    rollingUpdate:
      # 100% surge allows a complete up-level set of typha instances to start and become ready,
      # which in turn allows all the back-level typha instances to start shutting down. This
      # means that connections tend to bounce directly from a back-level instance to an up-level
      # instance.
      maxSurge: 100%
      # In case the cluster is unable to schedule extra surge instances, allow at most one instance
      # to shut down to make room. You can set this to 0 if you're sure there'll always be enough room to
      # schedule extra typha instances during an upgrade (because setting it to 0 blocks shutdown until
      # up-level typha instances are online and ready).
      maxUnavailable: 1
    type: RollingUpdate
  template:
    metadata:
      labels:
        k8s-app: calico-typha
      annotations:
        cluster-autoscaler.kubernetes.io/safe-to-evict: 'true'
    spec:
      nodeSelector:
        kubernetes.io/os: linux
      hostNetwork: true
      # Typha supports graceful shut down, disconnecting clients slowly during the grace period.
      # The TYPHA_SHUTDOWNTIMEOUTSECS env var should be kept in sync with this value.
      terminationGracePeriodSeconds: 300
      tolerations:
        # Mark the pod as a critical add-on for rescheduling.
        - key: CriticalAddonsOnly
          operator: Exists
        # Make sure Typha can get scheduled on any nodes. 
        - effect: NoSchedule 
          operator: Exists 
        - effect: NoExecute 
          operator: Exists           
      # Since Calico can't network a pod until Typha is up, we need to run Typha itself
      # as a host-networked pod.
      serviceAccountName: calico-node
      priorityClassName: system-cluster-critical
      # fsGroup allows using projected serviceaccount tokens as described here kubernetes/kubernetes#82573
      securityContext:
        fsGroup: 65534
        seccompProfile:
          type: RuntimeDefault
      containers:
      - image: docker.io/calico/typha:latest-amd64
        imagePullPolicy: Never
        name: calico-typha
        ports:
        - containerPort: 5473
          name: calico-typha
          protocol: TCP
        envFrom:
        - configMapRef:
            # Allow KUBERNETES_SERVICE_HOST and KUBERNETES_SERVICE_PORT to be overridden for eBPF mode.
            name: kubernetes-services-endpoint
            optional: true
        env:
          # Enable "info" logging by default. Can be set to "debug" to increase verbosity.
          - name: TYPHA_LOGSEVERITYSCREEN
            value: "info"
          # Disable logging to file and syslog since those don't make sense in Kubernetes.
          - name: TYPHA_LOGFILEPATH
            value: "none"
          - name: TYPHA_LOGSEVERITYSYS
            value: "none"
          # Monitor the Kubernetes API to find the number of running instances and rebalance
          # connections.
          - name: TYPHA_CONNECTIONREBALANCINGMODE
            value: "kubernetes"
          - name: TYPHA_DATASTORETYPE
            value: "kubernetes"
          - name: TYPHA_HEALTHENABLED
            value: "true"
          # Set this to the same value as terminationGracePeriodSeconds; it tells Typha how much time
          # it has to shut down.
          - name: TYPHA_SHUTDOWNTIMEOUTSECS
            value: "300"
          # Uncomment these lines to enable prometheus metrics. Since Typha is host-networked,
          # this opens a port on the host, which may need to be secured.
          #- name: TYPHA_PROMETHEUSMETRICSENABLED
          #  value: "true"
          #- name: TYPHA_PROMETHEUSMETRICSPORT
          #  value: "9093"
        livenessProbe:
          httpGet:
            path: /liveness
            port: 9098
            host: localhost
          periodSeconds: 30
          initialDelaySeconds: 30
          timeoutSeconds: 10
        securityContext:
          runAsNonRoot: true
          allowPrivilegeEscalation: false
        readinessProbe:
          httpGet:
            path: /readiness
            port: 9098
            host: localhost
          periodSeconds: 10
          timeoutSeconds: 10
