access to and from external services, tradi�onal CIDR based security policies for both ingress and egress are supported. This allows to limit access to and from applica�on containers to par�cular IP ranges kubectl -n kube-system exec cilium-1c2cz -- cilium endpoint list ENDPOINT POLICY (ingress) POLICY (egress) IDENTITY LABELS (source: ENFORCEMENT ENFORCEMENT 108 Disabled kubernete k8s:org=empire Both ingress and egress policy enforcement is s�ll disabled on all of these pods because no network policy has been imported

access to and from external services, traditional CIDR based security policies for both ingress and egress are supported. This allows to limit access to and from application containers to particular IP ranges (beta) Kata Containers with Cilium Configuring IPAM modes Local Redirect Policy (beta) BGP (beta) Egress Gateway (beta) Cluster Mesh Setting up Cluster Mesh Load-balancing & Service Discovery Network kubectl -n kube-system exec cilium-1c2cz -- cilium endpoint list ENDPOINT POLICY (ingress) POLICY (egress) IDENTITY LABELS (source:key[=value]) IPv6 IPv4 STATUS

access to and from external services, traditional CIDR based security policies for both ingress and egress are supported. This allows to limit access to and from application containers to particular IP ranges kubectl -n kube-system exec cilium-1c2cz -- cilium endpoint list ENDPOINT POLICY (ingress) POLICY (egress) IDENTITY LABELS (source:key[=value]) IPv6 IPv4 STATUS namespace=default k8s:org=empire Both ingress and egress policy enforcement is still disabled on all of these pods because no network policy has been imported

access to and from external services, traditional CIDR based security policies for both ingress and egress are supported. This allows to limit access to and from application containers to particular IP ranges (beta) Kata Containers with Cilium Configuring IPAM modes Local Redirect Policy (beta) BGP (beta) Egress Gateway (beta) CiliumEndpointSlice (beta) Cluster Mesh Setting up Cluster Mesh Load-balancing & kubectl -n kube-system exec cilium-1c2cz -- cilium endpoint list ENDPOINT POLICY (ingress) POLICY (egress) IDENTITY LABELS (source:key[=value]) IPv6 IPv4 STATUS

access to and from external services, traditional CIDR based security policies for both ingress and egress are supported. This allows to limit access to and from application containers to particular IP ranges kubectl -n kube-system exec cilium-1c2cz -- cilium endpoint list ENDPOINT POLICY (ingress) POLICY (egress) IDENTITY LABELS (source:key[=value]) IPv6 IPv4 STATUS namespace=default k8s:org=empire Both ingress and egress policy enforcement is still disabled on all of these pods because no network policy has been imported

Platform 4.6 中，OpenShift SDN 支 持在默认的网络隔离模式中使用网络策略。 注意 注意 在使用 OpenShift SDN 集群网络供应商时，网络策略会有以下限制： 不支持由 egress 字段指定的出口网络策略。 网络策略支持 IPBlock，但不支持 except。如果创建的策略带有一个有 except 的 IPBlock 项，SDN pod 的日志中会出现警告，策略中的整个 To Port: (traffic allowed to all ports) From: PodSelector: Not affecting egress traffic Policy Types: Ingress kind: NetworkPolicy apiVersion: networking.k8s.io/v1 metadata: ports) From: NamespaceSelector: network.openshift.io/policy-group: ingress Not affecting egress traffic Policy Types: Ingress Name: allow-from-openshift-monitoring OpenShift Container

access to and from external services, traditional CIDR based security policies for both ingress and egress are supported. This allows to limit access to and from application containers to particular IP ranges kubectl -n kube-system exec cilium-1c2cz -- cilium endpoint list ENDPOINT POLICY (ingress) POLICY (egress) IDENTITY LABELS (source:key[=value]) IPv6 IPv4 STATUS namespace=default k8s:org=alliance Both ingress and egress policy enforcement is still disabled on all of these pods because no network policy has been imported

access to and from external services, traditional CIDR based security policies for both ingress and egress are supported. This allows to limit access to and from application containers to particular IP ranges kubectl -n kube-system exec cilium-1c2cz -- cilium endpoint list ENDPOINT POLICY (ingress) POLICY (egress) IDENTITY LABELS (source:key[=value]) IPv6 IPv4 STATUS namespace=default k8s:org=alliance Both ingress and egress policy enforcement is still disabled on all of these pods because no network policy has been imported

Kubernetes 服务发现。 部署 部署 维护应用程序生命周期的 Kubernetes 资源对象。 domain Domain（域）是 Ingress Controller 提供的 DNS 名称。 egress 通过来自 pod 的网络出站流量进行外部数据共享的过程。 外部 外部 DNS Operator External DNS Operator 部署并管理 ExternalDNS，以便为从外部 Platform 4.9 中，OpenShift SDN 支 持在默认的网络隔离模式中使用网络策略。 注意 注意 在使用 OpenShift SDN 集群网络供应商时，网络策略会有以下限制： 不支持由 egress 字段指定的网络策略出口。在 OpenShift SDN 中，出口防火墙 也称为出口网络策略。这和网络策略出口不同。 网络策略支持 IPBlock，但不支持 except。如果创建的策略带有一个有 - Ingress - Egress --- apiVersion: networking.k8s.io/v1 kind: NetworkPolicy metadata: name: allow-from-same-namespace spec: podSelector: {} policyTypes: - Ingress - Egress ingress:

Kubernetes 服务发现。 部署 部署 维护应用程序生命周期的 Kubernetes 资源对象。 domain Domain（域）是 Ingress Controller 提供的 DNS 名称。 egress 通过来自 pod 的网络出站流量进行外部数据共享的过程。 外部 外部 DNS Operator External DNS Operator 部署并管理 ExternalDNS，以便为从外部 ingress 或 egress 规则的一 个网络策略比带有 ingress 或 egress 子集的多个网络策略更高效。 每个基于 podSelector 或 namespaceSelector spec 的 ingress 或 egress 规则会生成一个的 OVS 流数量，它与由网 由网络 络策略 策略选择 选择的 的 pod 数量 数量 + 由 由 ingress 或 或 egress 选择 选择的 网 网络 络策略 策略 209 以下策略表示这两个规则与以下相同的规则： 相同的指南信息适用于 spec.podSelector spec。如果不同的网络策略有相同的 ingress 或 egress 规则，则创建一个带有通用的 spec.podSelector spec 可能更有效率。例如，以下两个 策略有不同的规则： 以下网络策略将这两个相同的规则作为一个： apiVersion: networking