Update to version v3.23.3

templates/calico-node-DaemonSet.yaml

@@ -44,7 +44,7 @@ spec:
         # 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:v3.23.2
+          image: docker.io/calico/cni:v3.23.3
           command: ["/opt/cni/bin/calico-ipam", "-upgrade"]
           envFrom:
           - configMapRef:
@@ -71,7 +71,7 @@ spec:
         # This container installs the CNI binaries
         # and CNI network config file on each node.
         - name: install-cni
-          image: docker.io/calico/cni:v3.23.2
+          image: docker.io/calico/cni:v3.23.3
           command: ["/opt/cni/bin/install"]
           envFrom:
           - configMapRef:
@@ -109,12 +109,36 @@ spec:
               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/calico/node:v3.23.3
+          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/calico/node:v3.23.2
+          image: docker.io/calico/node:v3.23.3
           envFrom:
           - configMapRef:
               # Allow KUBERNETES_SERVICE_HOST and KUBERNETES_SERVICE_PORT to be overridden for eBPF mode.
@@ -243,11 +267,8 @@ spec:
               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: sysfs
-              mountPath: /sys/fs/
-              # Bidirectional means that, if we mount the BPF filesystem at /sys/fs/bpf it will propagate to the host.
-              # If the host is known to mount that filesystem already then Bidirectional can be omitted.
-              mountPropagation: Bidirectional
+            - name: bpffs
+              mountPath: /sys/fs/bpf
             - name: cni-log-dir
               mountPath: /var/log/calico/cni
               readOnly: true
@@ -266,10 +287,18 @@ spec:
           hostPath:
             path: /run/xtables.lock
             type: FileOrCreate
-        - name: sysfs
+        - 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: