{"id":17322390,"url":"https://github.com/jenting/rke2-ha","last_synced_at":"2026-03-08T05:33:45.405Z","repository":{"id":129093718,"uuid":"319551831","full_name":"jenting/rke2-HA","owner":"jenting","description":"HA rke2 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RKE2-HA\n\nThe control plane nodes _must be_ odd number.\n```shell\n# 1st control plane node\nsudo su -\n\nsystemctl disable firewalld\nsystemctl stop firewalld\n\ncurl -sfL https://get.rke2.io | sh -\n\nsystemctl enable rke2-server.service\n\nmkdir -p /etc/rancher/rke2/\ncat \u003c\u003c EOF \u003e /etc/rancher/rke2/config.yaml\nkube-apiserver-arg: \"kubelet-preferred-address-types=InternalIP,ExternalIP,Hostname\"\nEOF\n\nsystemctl start rke2-server.service\n\nSERVER_NODE_TOKEN=`cat /var/lib/rancher/rke2/server/node-token`\n\n# 2nd, 3rd control plane nodes\nsudo su -\n\nsystemctl disable firewalld\nsystemctl stop firewalld\n\ncurl -sfL https://get.rke2.io | sh -\n\nsystemctl enable rke2-server.service\n\nmkdir -p /etc/rancher/rke2/\nvim /etc/rancher/rke2/config.yaml\nserver: https://\u003cLB_IP\u003e:9345\ntoken: $SERVER_NODE_TOKEN\n\nsystemctl start rke2-server.service\n\n# worker nodes\nsudo su -\n\nsystemctl disable firewalld\nsystemctl stop firewalld\ncurl -sfL https://get.rke2.io | INSTALL_RKE2_TYPE=\"agent\" sh -\nsystemctl enable rke2-agent.service\n\nmkdir -p /etc/rancher/rke2/\ncat \u003c\u003c EOF \u003e /etc/rancher/rke2/config.yaml\nserver: https://\u003cLB_IP\u003e:9345\ntoken: $SERVER_NODE_TOKEN\nEOF\n\nsystemctl start rke2-agent.service\n```\n\n# RKE2-HA with CIS-1.5 profile\n\nThe control plane nodes _must be_ odd number.\n```shell\n# 1st control plane node\nsudo su -\n\nsystemctl disable firewalld\nsystemctl stop firewalld\n\ncurl -sfL https://get.rke2.io | sh -\n\nsystemctl enable rke2-server.service\n\ncat \u003c\u003c EOF \u003e /etc/sysctl.d/60-rke2-cis.conf\nvm.panic_on_oom=0\nvm.overcommit_memory=1\nkernel.panic=10\nkernel.panic_on_oops=1\nEOF\nsudo systemctl restart systemd-sysctl\n\nuseradd -r -c \"etcd user\" -s /sbin/nologin -M etcd\n\nmkdir -p /etc/rancher/rke2/\ncat \u003c\u003c EOF \u003e /etc/rancher/rke2/config.yaml\nkube-apiserver-arg: \"kubelet-preferred-address-types=InternalIP,ExternalIP,Hostname\"\nprofile: \"cis-1.5\"\nEOF\n\nsystemctl start rke2-server.service\n\nSERVER_NODE_TOKEN=`cat /var/lib/rancher/rke2/server/node-token`\n\n# 2nd, 3rd control plane nodes\nsudo su -\n\nsystemctl disable firewalld\nsystemctl stop firewalld\n\ncurl -sfL https://get.rke2.io | sh -\n\nsystemctl enable rke2-server.service\n\ncat \u003c\u003c EOF \u003e /etc/sysctl.d/60-rke2-cis.conf\nvm.panic_on_oom=0\nvm.overcommit_memory=1\nkernel.panic=10\nkernel.panic_on_oops=1\nEOF\nsudo systemctl restart systemd-sysctl\n\nuseradd -r -c \"etcd user\" -s /sbin/nologin -M etcd\n\nmkdir -p /etc/rancher/rke2/\ncat \u003c\u003c EOF \u003e /etc/rancher/rke2/config.yaml\nserver: https://\u003cLB_IP\u003e:9345\ntoken: $SERVER_NODE_TOKEN\nprofile: \"cis-1.5\"\nEOF\n\nsystemctl start rke2-server.service\n\n# worker nodes\nsudo su -\n\nsystemctl disable firewalld\nsystemctl stop firewalld\n\ncurl -sfL https://get.rke2.io | INSTALL_RKE2_TYPE=\"agent\" sh -\n\nsystemctl enable rke2-agent.service\n\ncat \u003c\u003c EOF \u003e /etc/sysctl.d/60-rke2-cis.conf\nvm.panic_on_oom=0\nvm.overcommit_memory=1\nkernel.panic=10\nkernel.panic_on_oops=1\nEOF\nsudo systemctl restart systemd-sysctl\n\nmkdir -p /etc/rancher/rke2/\ncat \u003c\u003c EOF \u003e /etc/rancher/rke2/config.yaml\nserver: https://\u003cLB_IP\u003e:9345\ntoken: $SERVER_NODE_TOKEN\nprofile: \"cis-1.5\"\nEOF\n\nsystemctl start rke2-agent.service\n```\n\n## Install system-upgrade-controller\nInstall the system-upgrade-controller.\n```shell\nkubectl apply -f https://github.com/rancher/system-upgrade-controller/releases/download/v0.6.2/system-upgrade-controller.yaml\n\ncat \u003c\u003cEOF | kubectl apply -f -\n# Server plan\napiVersion: upgrade.cattle.io/v1\nkind: Plan\nmetadata:\n  name: server-plan\n  namespace: system-upgrade\nspec:\n  concurrency: 1\n  cordon: true\n  nodeSelector:\n    matchExpressions:\n    - key: node-role.kubernetes.io/master\n      operator: In\n      values:\n      - \"true\"\n  serviceAccountName: system-upgrade\n  upgrade:\n    image: rancher/rke2-upgrade\n  channel: https://update.rke2.io/v1-release/channels/stable\n---\n# Agent plan\napiVersion: upgrade.cattle.io/v1\nkind: Plan\nmetadata:\n  name: agent-plan\n  namespace: system-upgrade\nspec:\n  concurrency: 2\n  cordon: true\n  drain:\n    force: true\n  nodeSelector:\n    matchExpressions:\n    - key: node-role.kubernetes.io/master\n      operator: NotIn\n      values:\n      - \"true\"\n  prepare:\n    args:\n    - prepare\n    - server-plan\n    image: rancher/rke2-upgrade\n  serviceAccountName: system-upgrade\n  upgrade:\n    image: rancher/rke2-upgrade\n  channel: https://update.rke2.io/v1-release/channels/stable\nEOF\n```\n\nReferences:\n1. https://docs.rke2.io/\n2. https://github.com/rancher/system-upgrade-controller\n3. 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