fix(manifests): add hostPID for hairpin

This is needed because cloudnativelabs#1582 which was recently merged relies upon
finding the correct veth interface via /proc/<pid> which isn't available
unless kube-router is in the same process namespace.

hostPID and hostIPC was always required for DSR functionality, but now
hostPID is needed for hairpin to be available.

daemonset/generic-kuberouter-all-features-advertise-routes.yaml

@@ -143,6 +143,7 @@ spec:
         - name: kubeconfig
           mountPath: /var/lib/kube-router
       hostNetwork: true
+      hostPID: true
       tolerations:
       - effect: NoSchedule
         operator: Exists

daemonset/generic-kuberouter-all-features.yaml

@@ -139,6 +139,7 @@ spec:
         - name: kubeconfig
           mountPath: /var/lib/kube-router
       hostNetwork: true
+      hostPID: true
       tolerations:
       - effect: NoSchedule
         operator: Exists

daemonset/generic-kuberouter-only-advertise-routes.yaml

@@ -64,6 +64,7 @@ spec:
           mountPath: /run/xtables.lock
           readOnly: false
       hostNetwork: true
+      hostPID: true
       tolerations:
       - effect: NoSchedule
         operator: Exists

daemonset/generic-kuberouter.yaml

@@ -109,6 +109,7 @@ spec:
         - mountPath: /etc/kube-router
           name: kube-router-cfg
       hostNetwork: true
+      hostPID: true
       tolerations:
       - effect: NoSchedule
         operator: Exists

daemonset/kube-router-all-service-daemonset-advertise-routes.yaml

@@ -104,6 +104,7 @@ spec:
         - name: kube-router-cfg
           mountPath: /etc/kube-router
       hostNetwork: true
+      hostPID: true
       tolerations:
       - effect: NoSchedule
         operator: Exists

daemonset/kube-router-all-service-daemonset.yaml

@@ -100,6 +100,7 @@ spec:
         - name: kube-router-cfg
           mountPath: /etc/kube-router
       hostNetwork: true
+      hostPID: true
       tolerations:
       - effect: NoSchedule
         operator: Exists

daemonset/kube-router-firewall-daemonset.yaml

@@ -99,6 +99,7 @@ spec:
         - name: kube-router-cfg
           mountPath: /etc/kube-router
       hostNetwork: true
+      hostPID: true
       tolerations:
       - effect: NoSchedule
         operator: Exists

daemonset/kube-router-proxy-daemonset.yaml

@@ -99,6 +99,7 @@ spec:
         - name: kube-router-cfg
           mountPath: /etc/kube-router
       hostNetwork: true
+      hostPID: true
       tolerations:
       - effect: NoSchedule
         operator: Exists

daemonset/kubeadm-kuberouter-all-features-hostport.yaml

@@ -120,6 +120,7 @@ spec:
         - name: kube-router-cfg
           mountPath: /etc/kube-router
       hostNetwork: true
+      hostPID: true
       tolerations:
       - effect: NoSchedule
         operator: Exists

daemonset/kubeadm-kuberouter-all-features.yaml

@@ -113,6 +113,7 @@ spec:
         - name: kube-router-cfg
           mountPath: /etc/kube-router
       hostNetwork: true
+      hostPID: true
       tolerations:
       - effect: NoSchedule
         operator: Exists

daemonset/kubeadm-kuberouter.yaml

@@ -112,6 +112,7 @@ spec:
         - mountPath: /etc/kube-router
           name: kube-router-cfg
       hostNetwork: true
+      hostPID: true
       tolerations:
       - effect: NoSchedule
         operator: Exists