OPERATOR 概述 概述 3.1. CLUSTER NETWORK OPERATOR 3.2. DNS OPERATOR 3.3. INGRESS OPERATOR 第 第 4 章 章 OPENSHIFT CONTAINER PLATFORM 中的 中的 CLUSTER NETWORK OPERATOR 4.1. CLUSTER NETWORK OPERATOR 4.2. 查看集群网络配置 4 4.3. 查看 CLUSTER NETWORK OPERATOR 状态 4.4. 查看 CLUSTER NETWORK OPERATOR 日志 4.5. CLUSTER NETWORK OPERATOR 配置 4.6. 其他资源 第 第 5 章 章 OPENSHIFT CONTAINER PLATFORM 中的 中的 DNS OPERATOR 5.1. DNS OPERATOR 5.2. 更改 VRF 分配从属网络 第 第 14 章 章 硬件网 硬件网络 络 14.1. 关于单根 I/O 虚拟化（SR-IOV）硬件网络 14.2. 安装 SR-IOV NETWORK OPERATOR 14.3. 配置 SR-IOV NETWORK OPERATOR 14.4. 配置 SR-IOV 网络设备 14.5. 配置 SR-IOV 以太网网络附加 72 73 76 76 78 79 79

OPERATOR 概述 概述 3.1. CLUSTER NETWORK OPERATOR 3.2. DNS OPERATOR 3.3. INGRESS OPERATOR 第 第 4 章 章 OPENSHIFT CONTAINER PLATFORM 中的 中的 CLUSTER NETWORK OPERATOR 4.1. CLUSTER NETWORK OPERATOR 4.2. 查看集群网络配置 4 4.3. 查看 CLUSTER NETWORK OPERATOR 状态 4.4. 查看 CLUSTER NETWORK OPERATOR 日志 4.5. CLUSTER NETWORK OPERATOR 配置 4.5.1. Cluster Network Operator 配置对象 defaultNetwork 对象配置 配置 OpenShift SDN CNI 集群网络供应商 配置 OVN-Kubernetes OVN-Kubernetes CNI 集群网络供应商 kubeProxyConfig 对象配置 4.5.2. Cluster Network Operator 配置示例 4.6. 其他资源 第 第 5 章 章 OPENSHIFT CONTAINER PLATFORM 中的 中的 DNS OPERATOR 5.1. DNS OPERATOR 5.2. 查看默认 DNS 5.3. 使用 DNS 转发

网 网络 络 OPERATOR 概述 概述 4.1. CLUSTER NETWORK OPERATOR 4.2. DNS OPERATOR 4.3. INGRESS OPERATOR 4.4. 外部 DNS OPERATOR 4.5. INGRESS NODE FIREWALL OPERATOR 4.6. NETWORK OBSERVABILITY OPERATOR 第 第 5 章 章 OPENSHIFT PLATFORM 中的 中的 CLUSTER NETWORK OPERATOR 5.1. CLUSTER NETWORK OPERATOR 5.2. 查看集群网络配置 5.3. 查看 CLUSTER NETWORK OPERATOR 状态 5.4. 查看 CLUSTER NETWORK OPERATOR 日志 5.5. CLUSTER NETWORK OPERATOR 配置 5.6. 其他资源 VRF 分配从属网络 第 第 26 章 章 硬件网 硬件网络 络 26.1. 关于单根 I/O 虚拟化（SR-IOV）硬件网络 26.2. 安装 SR-IOV NETWORK OPERATOR 26.3. 配置 SR-IOV NETWORK OPERATOR 26.4. 配置 SR-IOV 网络设备 26.5. 配置 SR-IOV 以太网网络附加 26.6. 配置 SR-IOV INFINIBAND

集群上监控的一个关键指标是每个 etcd 集群成员上的 etcd 网络对延迟 的 p99 百分比。使用 Prometheus 跟踪指标数据。 histogram_quantile（ （0.99, rate(etcd_network_peer_round_trip_time_seconds_bucket[2m]) 指标报 告 etcd 在成员间复制客户端请求的时间。确保它小于 50 ms。 其他 其他资 资源 源 $ data:text/plain;charset=US- ASCII,%23%20turn%20on%20Receive%20Flow%20Steering%20%28RFS%29%20for%20all %20network%20interfaces%0ASUBSYSTEM%3D%3D%22net%22%2C%20ACTION%3D% 3D%22add%22%2C%20RUN%7Bprogram%7D%2B%3D%22/bin/bash%20- 程规 规格示例 格示例 $ oc delete -f 05-worker-kernelarg-hpav.yaml network="net01"/> ... <

swap function, the discarded cold memory can be changed to the user-mode storage based on a preset policy. The user-mode swap delivers a higher performance than the kernel- mode swap and the whole swap eBPF-based high performance, programmable network data path that processes data before network packets enter the network protocol stack to improve network performance. XDP works in various scenarios scenarios such as anti-DDoS, firewall, and network quality of service (QoS). Concurrent updates for translation lookaside buffer (TLB): The local TLB and remote TLB can be refreshed at the same time

或 bpf_redirect_peer() 等 helper 函数，快速帮助同宿主机间 的流量转发，节省了大量的内核协议栈 处理流程 pod 1 process kernel network stack raw PREROUTING mangle PREROUTING nat PREROUTING tc ingress conntrack filter FORWARD tailCall-> to-container: redirect kernel >= 5.10 redirect_peer routing veth veth kernel network stack node 加速跨节点pod间通信 pod在跨节点通 信的场景下， cilium 借助 eBPF redirect 能力，帮 助数据包在主机物 理网卡和pod虚拟 网卡之间快速转发， pod1 process kernel network stack tc ingress kernel network stack netfilter tc egress veth veth eth0 tc ingress tc egress redirect_peer redirect_neigh kernel network stack netfilter

the number of pods between 2 and 10, no target CPU utilization specified so a default autoscaling policy will be used oc autoscale deployment foo --min=2 --max=10 第 第 2 章 章 OPENSHIFT CLI (OC) 25 2 oc create priorityclass high-priority --value=1000 --description="high priority" --preemption- policy="Never" # Create a new resource quota named my-quota oc create quota my-quota -- hard=cpu=1 # Create a route with a wildcard oc expose service nginx --hostname=x.example.com --wildcard-policy=Subdomain # This would be equivalent to *.example.com. NOTE: only hosts are matched by the wildcard;

the number of pods between 2 and 10, no target CPU utilization specified so a default autoscaling policy will be used oc autoscale deployment foo --min=2 --max=10 # Auto scale a replication controller oc create priorityclass high-priority --value=1000 --description="high priority" --preemption- policy="Never" # Create a new resource quota named my-quota oc create quota my-quota -- hard=cpu=1 # Create a route with a wildcard oc expose service nginx --hostname=x.example.com --wildcard-policy=Subdomain # This would be equivalent to *.example.com. NOTE: only hosts are matched by the wildcard;

the number of pods between 2 and 10, no target CPU utilization specified so a default autoscaling policy will be used: oc autoscale deployment foo --min=2 --max=10 第 第 2 章 章 OPENSHIFT CLI (OC) 25 2 oc create priorityclass high-priority --value=1000 --description="high priority" --preemption- policy="Never" # Create a new resourcequota named my-quota oc create quota my-quota -- hard=cpu=1,memory=1G # Create a route with a wildcard oc expose service nginx --hostname=x.example.com --wildcard-policy=Subdomain # This would be equivalent to *.example.com. NOTE: only hosts are matched by the wildcard;

oc create -f cinder-persistentvolume.yaml $ oc create serviceaccount $ oc adm policy add-scc-to-user -z -n apiVersion: v1 kind: ReplicationController 不要在同一设备中使用不同的存储类名称。这将会创建多个 PV。 example-pv-filesystem.yaml NAME CAPACITY ACCESS MODES RECLAIM POLICY STATUS CLAIM STORAGECLASS REASON AGE local-pv-1cec77cf 100Gi RWO create -f .yaml $ oc get pv NAME CAPACITY ACCESS MODES RECLAIM POLICY STATUS CLAIM STORAGECLASS REASON AGE example-pv-filesystem 100Gi