apiVersion: apps/v1
kind: DaemonSet
metadata:
  name: kube-multus-ds
  namespace: kube-system
  labels:
    tier: node
    app: multus
    name: multus
spec:
  selector:
    matchLabels:
      name: multus
  updateStrategy:
    type: RollingUpdate
  template:
    metadata:
      labels:
        tier: node
        app: multus
        name: multus
    spec:
      hostNetwork: true
      hostPID: true
      tolerations:
        - operator: Exists
          effect: NoSchedule
        - operator: Exists
          effect: NoExecute
      serviceAccountName: multus
      containers:
        - name: kube-multus
          image: ghcr.io/k8snetworkplumbingwg/multus-cni:snapshot-thick
          command: [ "/usr/src/multus-cni/bin/multus-daemon" ]
          resources:
            requests:
              cpu: "100m"
              memory: "50Mi"
            limits:
              cpu: "100m"
              memory: "50Mi"
          securityContext:
            privileged: true
          terminationMessagePolicy: FallbackToLogsOnError
          volumeMounts:
            - name: cni
              mountPath: /host/etc/cni/net.d
            # multus-daemon expects that cnibin path must be identical between pod and container host.
            # e.g. if the cni bin is in '/opt/cni/bin' on the container host side, then it should be mount to '/opt/cni/bin' in multus-daemon,
            # not to any other directory, like '/opt/bin' or '/usr/bin'.
            - name: cnibin
              mountPath: /opt/cni/bin
            - name: host-run
              mountPath: /host/run
            - name: host-var-lib-cni-multus
              mountPath: /var/lib/cni/multus
            - name: host-var-lib-kubelet
              mountPath: /var/lib/kubelet
              mountPropagation: HostToContainer
            - name: host-run-k8s-cni-cncf-io
              mountPath: /run/k8s.cni.cncf.io
            - name: host-run-netns
              mountPath: /run/netns
              mountPropagation: HostToContainer
            - name: multus-daemon-config
              mountPath: /etc/cni/net.d/multus.d
              readOnly: true
            - name: hostroot
              mountPath: /hostroot
              mountPropagation: HostToContainer
            - mountPath: /etc/cni/multus/net.d
              name: multus-conf-dir
          env:
            - name: MULTUS_NODE_NAME
              valueFrom:
                fieldRef:
                  fieldPath: spec.nodeName
      initContainers:
        - name: install-multus-binary
          image: ghcr.io/k8snetworkplumbingwg/multus-cni:snapshot-thick
          command:
            - "/usr/src/multus-cni/bin/install_multus"
            - "-d"
            - "/host/opt/cni/bin"
            - "-t"
            - "thick"
          resources:
            requests:
              cpu: "10m"
              memory: "15Mi"
          securityContext:
            privileged: true
          terminationMessagePolicy: FallbackToLogsOnError
          volumeMounts:
            - name: cnibin
              mountPath: /host/opt/cni/bin
              mountPropagation: Bidirectional
        - name: install-dhcp
          image: alpine:3.22.1
          env:
            - name: VERSION
              value: "1.8.0"
          command: ["/bin/sh"]
          args:
            - -c
            - |
              if [ "${uname -m}" = "x86_64" ] || [ "${uname -m}" = "amd64" ]; then
                ARCH="amd64"
              elif [ "${uname -m}" = "arm64" ] || [ "${uname -m}" = "aarch64" ]; then
                ARCH="arm64"
              else
                exit 1
              fi

              set -e
              apk add --no-cache wget tar
              wget https://github.com/containernetworking/plugins/releases/download/v${VERSION}/cni-plugins-linux-${ARCH}-v${VERSION}.tgz
              tar -xzf cni-plugins-linux-${ARCH}-v${VERSION}.tgz -C /host/opt/cni/bin --strip-components=1 --wildcards '*/dhcp'
              rm cni-plugins-linux-${ARCH}-v${VERSION}.tgz
          resources:
            requests:
              cpu: "10m"
              memory: "15Mi"
          securityContext:
            privileged: true
          terminationMessagePolicy: FallbackToLogsOnError
          volumeMounts:
            - name: cnibin
              mountPath: /host/opt/cni/bin
              mountPropagation: Bidirectional
      terminationGracePeriodSeconds: 10
      volumes:
        - name: cni
          hostPath:
            path: /etc/cni/net.d
        - name: cnibin
          hostPath:
            path: /opt/cni/bin
        - name: hostroot
          hostPath:
            path: /
        - name: multus-daemon-config
          configMap:
            name: multus-daemon-config
            items:
            - key: daemon-config.json
              path: daemon-config.json
        - name: host-run
          hostPath:
            path: /run
        - name: host-var-lib-cni-multus
          hostPath:
            path: /var/lib/cni/multus
        - name: host-var-lib-kubelet
          hostPath:
            path: /var/lib/kubelet
        - name: host-run-k8s-cni-cncf-io
          hostPath:
            path: /run/k8s.cni.cncf.io
        - name: host-run-netns
          hostPath:
            path: /var/run/netns/
        - name: multus-conf-dir
          hostPath:
            path: /etc/cni/multus/net.d