...................45 4.5 Ingress Support ..........................................................................................................48 4.5.1 Ingress Use cases ................... abstraction called a “service,” or with an ingress-type resource. A service masks underlying pods/containers and instead represents them as a single entity. The ingress ©Rancher Labs 2017. All rights Reserved Kubernetes cluster • Rancher-ingress-controller will leverage the existing Kubernetes load balancing functionality within Rancher and convert what’s in the Kubernetes ingress to a load balancer in Rancher

secret. 11 SAP Data Intelligence 3 on Rancher Kubernetes Engine 2 using VMware vSAN and vSphere $ cat CA.pem > cert_with_cr $ tr -d '\r' < cert_with_cr > cert $ kubectl -n create secret .csr Decrypt the key: $ openssl rsa -in .key -out decrypted-.key Let a CA sign the .csr You will receive a .crt. Create a secret from the certificate and .crt Deploy an nginx-ingress controller: For more information, see https://kubernetes.github.io/ingress-nginx/deploy/#bare- metal . Create the nginx-ingress controller as a nodePort service

|grep cattle • Ve r i f y t h at t h e r ol e s e x i s t : kubectl get role default-psp-role -n ingress-nginx kubectl get role default-psp-role -n cattle-system kubectl get clusterrole restricted-clusterrole le • Ve r i f y t h e b i n d i n gs ar e s e t c or r e c t l y : kubectl get rolebinding -n ingress-nginx default-psp-rolebinding kubectl get rolebinding -n cattle-system default-psp-rolebinding kubectl apiVersion: rbac.authorization.k8s.io/v1 kind: Role metadata: name: default-psp-role namespace: ingress-nginx rules: - apiGroups: - extensions resourceNames: - default-psp resources: - podsecuritypolicies

can interact poorly with certain Pod Security Policies Several system services (such as nginx-ingress ) utilize SecurityContext to switch users and assign capabilities. These exceptions to the general appropriate (Scored) Notes RKE is using the kubelet's ability to automatically create self-signed certs. No CA cert is saved to verify the communication between kube-apiserver and kubelet . Mitigation Make the --client-ca-file argument is set as appropriate (Scored) Audit docker inspect kube-apiserver | jq -e '.[0].Args[] | match("--client-ca-file=.*").string' Returned Value: --client-ca-file=/etc/k

containers, Kubernetes, PowerFlex, and Data Protection. Table 1. Terminology Term Definition CA Certificate Authority CNS Cloud Native Storage CSI Container Storage Interface Revisions issuing sources. SUSE Rancher relies on cert-manager to issue certificates generated by SUSE Rancher CA or to request the encrypted certificates. Run the following command to use helm to install the cert-manager: take several minutes to fully initialize. Please standby while Certificates are being issued and Ingress comes up. Check out Rancher docs at https://rancher.com/docs/rancher/v2.x/en/ Browse to h

NetworkPolicy metadata: name: default-allow-all spec: podSelector: {} ingress: - {} egress: - {} policyTypes: - Ingress - Egress Create a bash script file called apply_networkPolicy_to_all_ns Namespace metadata: name: ingress-nginx --- apiVersion: rbac.authorization.k8s.io/v1 kind: Role metadata: name: default-psp-role namespace: ingress-nginx rules: - apiGroups: authorization.k8s.io/v1 kind: RoleBinding metadata: name: default-psp-rolebinding namespace: ingress-nginx roleRef: apiGroup: rbac.authorization.k8s.io kind: Role name: default-psp-role

NetworkPolicy metadata: name: default-allow-all spec: podSelector: {} policyTypes: - Ingress - Egress Create a bash script file called apply_networkPolicy_to_all_ns.sh. Be sure to chmod Namespace metadata: name: ingress-nginx --- apiVersion: rbac.authorization.k8s.io/v1 kind: Role metadata: name: default-psp-role namespace: ingress-nginx rules: - apiGroups: authorization.k8s.io/v1 kind: RoleBinding metadata: name: default-psp-rolebinding namespace: ingress-nginx roleRef: apiGroup: rbac.authorization.k8s.io kind: Role name: default-psp-role

Dockerfile编写 • Docker Build构建 • …… • Deployment • DaemonSet • ConfigMap • Secret • Service • Ingress • …… • 功能测试 • 性能测试 • 升级回滚 • …… © Copyright 2020 Rancher Labs. All Rights Reserved. Confidential Confidential 通过Ingress对外发布应用 通常情况下，Service和Pod仅可在集群内部网络中通过IP地址访问。 Ingress是对集群中服务的外部访问进行管理的API对 象，典型的访问方式是HTTP和HTTPS。Ingress功能实现依赖于Ingress Controller控制器，社区有非常多不同的Ingress Controller实现，比较常用的有Ingress Nginx Controller。 Controller。 注：除了通过Ingress方式进行服务对外发布以外，Service还提供了NodePort、LoadBalance两种服务类型，针对不同的 应用场景可以选择最适合的方案。 © Copyright 2020 Rancher Labs. All Rights Reserved. Confidential 应用发布策略 • 滚动发布：逐个替换，直到所有实例都被替换完成 •

17h 172.16.0.11 rke2-s1 kube-system helm-install-rke2-ingress-nginx-jghfq 0/1 Completed 11 17h 10.42.0.6 rke2-s1 kube-system rke2-ingress-nginx-controller-6sk9w 1/1 Running 0 11h 10.42.0.9 rke2-s1 kube-system rke2-ingress-nginx-controller-ng4hg 0 11h 10.42.2.3 rke2-a2 kube-system rke2-ingress-nginx-controller-rrrts 1/1 Running 0 11h 10.42.1.0

default-psp-role -n ingress-nginx kubectl get role default-psp-role -n cattle-system kubectl get clusterrole psp:restricted Verify the bindings are set correctly: kubectl get rolebinding -n ingress-nginx de rbac.authorization.k8s.io/v1 kind: Role metadata: name: default-psp-role namespace: ingress-nginx rules: - apiGroups: - extensions resourceNames: - default-psp resources: authorization.k8s.io/v1 kind: RoleBinding metadata: name: default-psp-rolebinding namespace: ingress-nginx roleRef: apiGroup: rbac.authorization.k8s.io kind: Role name: default-psp-role