DaemonSet. Установка mtu.

Поменяем mtu на всех воркерах кластера.

cat <<EOF | kubectl apply -f -
apiVersion: apps/v1
kind: DaemonSet
metadata:
  name: set-mtu
spec:
  selector:
    matchLabels:
      app: set-mtu
  template:
    metadata:
      labels:
        app: set-mtu
    spec:
      containers:
      - name: set-mtu
        image: amouat/network-utils
        command: ["sh", "-c", "ip link set dev eth0 mtu 1450"]
        securityContext:
          privileged: true
        resources:
          requests:
            cpu: "100m"
            memory: "50Mi"
          limits:
            cpu: "200m"
            memory: "100Mi"
      hostNetwork: true
      nodeSelector:
        kubernetes.io/os: linux
EOF