CKA &. CKAD104 Practice Test - Explore CNI weave ㅁ Inspect the kubelet service and identify the newok plugin configured for Kubernetes. Run ps -aux | grep kubelet command [DOCKER] [CNI] ETHERNET] [CGROUPFS] [CISCO] ps -aux | grep kubelet | grep network-plugin root 14259 3.3 4.7 1856680 97384 ? Ssl 02:10 0:06 /usr/bin/kubelet --bootstrap-kubeconfig=/etc/kubernetes/bootstrap-kubelet.conf --kubeconfig=/etc/kubernetes/kubele.conf --config=/var/lib.. 2021. 3. 31. WeaveWorks (CNI) Deploy Weave kubectl apply -f "https://cloud.weave.works/k8s/net?k8s-version=${kubectl version | base64 | tr -d '\n')" Weave Peers kubectl get pods -n kube-system kubectl logs weave-net-5gcmb weave -n kube-system 2021. 3. 31. CNI in Kubernetes Pre-Requisites - Network Namespaces in Linux - Networking in Docker - Why and what is Container Network Interface (CNI)? - CNI Plugins Container Network Interface - Container Runtime must create network namespace - Identify network the container must attach to - Container Runtime to invoke Network Plugin (bridge) when container is ADDed - Container Runtime to invoke Network Plugin (bridge) when .. 2021. 3. 31. Pod Networking 2021. 3. 31. Practice Test - Explore Kubernetes Environments ㅁ How many nodes are part of this cluster? kubectl get nodes ㅁ What is the network interface configured for cluster connectivity on the master node? notde-to-node communication $ cat /etc/network/interfaces [ens3] Hint - Run the ip link command and identify the interface ip link 1: lo: mtu 65536 qdisc noqueue state UNKNOWN mode DEFAULT group default qlen 1000 link/loopback 00:00:00:00:00:00 brd .. 2021. 3. 31. Cluster Networking Check required ports Master Node(s) Protocol Direction Port Range Purpose Used By TCP Inbound 6443 Kubernetes API Server All TCP Inbound 2379-2380 etcd server client API kube-apiserver, etcd TCP Inbound 10250 Kubelet API Self, Control Plane TCP Inbound 10251 kube-scheduler Self TCP Inbound 10252 kube-controller-manager Self Worker Node Protocol Direction Port Range Purpose Used By TCP Inbound 10.. 2021. 3. 30. 이전 1 ··· 4 5 6 7 8 9 10 ··· 18 다음
