56 5 Appendix Create a Rancher RKE2 Cluster | 59 Configure a Server Node | 59 Configure an Agent Node | 63 Configure Repository Credentials | 66 Prepare a Cluster Node for DPDK | 67 Juniper reduce ambiguity, we refer to this strictly as a worker node in this document. Agent node In Rancher terminology, an agent node is a Kubernetes worker node. Contrail compute node This is equivalent to contains the vRouter agent and the vRouter itself. The vRouter agent acts on behalf of the local vRouter when interacting with the Contrail controller. There is one agent per node. The agent establishes XMPP

"worker" ] addon_job_timeout: 30 authentication: strategy: x509 authorization: {} bastion_host: ssh_agent_auth: false cloud_provider: {} ignore_docker_version: true # # # Currently only nginx ingress provider ificate: true kubeproxy: {} scheduler: extra_args: address: 127.0.0.1 profiling: 'false' ssh_agent_auth: false {{% /ac c or d i on % }} {{% ac c or d i on i d = “c l u s t e r - 1. 15” l ab e l = "RotateKubeletServerCertificate=true" scheduler: extra_args: profiling: "false" address: "127.0.0.1" ssh_agent_auth: false {{% /ac c or d i on % }} {{% ac c or d i on i d = “c l u s t e r - 1. 16” l ab e l =

clusters at multiple levels. Heapster is used to aggregate vital metrics, while the kubelet node agent queries cAdvisor to fetch data from containers and provide to Heapster. The performance data can The server then verifies the key and registers the agent. Based on the environment to which the agent belongs, further instructions are sent to agent to bring it to its desired state. In our case, since All rights Reserved. 14 DEPLOYING AND SCALING KUBERNETES WITH RANCHER • kubelet is an agent node and runs on every node in the cluster to manage containers running on that host. • kubernetes

Vault Agent spec: template: metadata: annotations: vault.hashicorp.com/agent-inject: "true" vault.hashicorp.com/role: "internal-app" vault.hashicorp.com/agent-injec mutating admission webhook to intercept pods that define specific annotations and inject a Vault Agent container to manage these secrets ● Mount Vault secrets as volume using secrets store CSI driver

cluster: $ export INSTALL_RKE2_TYPE=agent $ export INSTALL_RKE2_VERSION= $ curl -sfL https://get.rke2.io | sh - $ systemctl enable --now rke2-agent.service More details can be found sudo systemctl stop rke2-server On RKE 2 worker nodes, run the command: $ sudo systemctl stop rke2-agent Update SUSE Linux Enterprise Server 15 SP4: $ ssh node $ sudo zypper patch Reboot the nodes if sudo systemctl start rke2-server On worker nodes, run the command: $ sudo systemctl start rke2-agent Check if the respective nodes are back and uncordon them. $ kubectl get nodes $ kubectl uncordon

Tanzu Mission Control (TMC) supports both PSPs and security policies enforced by the Open Policy Agent (OPA) Gatekeeper. Despite being open source, VMware only includes OPA Gatekeeper with the Advanced Istiod, which combines Pilot, Citadel, Galley and the sidecar injector. Node Agent functionality has been merged into istio-agent. 3.3.8.2 OpenShift OpenShift installs a version of Istio modified by

API Server, Cluster Controller, etcd node, and Cluster Agent. All the components are deployed in the Rancher Server except for the Cluster Agent. Rancher Server Technical Architecture 18 2.2 Architecture

metrics_server: "" windows_pod_infra_container: "" ssh_key_path: "" ssh_cert_path: "" ssh_agent_auth: false authorization: mode: "" options: {} ignore_docker_version: false private_registries: Guide v2.3.5 20 extra_args: address: 127.0.0.1 profiling: 'false' ssh_agent_auth: false windows_prefered_cluster: false Hardened Reference Ubuntu 18.04 LTS cloud-config: The

metrics_server: "" windows_pod_infra_container: "" ssh_key_path: "" ssh_cert_path: "" ssh_agent_auth: false authorization: mode: "" options: {} ignore_docker_version: false private_registries: scheduler: extra_args: address: 127.0.0.1 profiling: 'false' ssh_agent_auth: false windows_prefered_cluster: false Hardened Reference Ubuntu 18.04 LTS cloud-config: The