Update worker_node_install.sh
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RomanNum3ral
parent
789ae1117c
commit
35c66b6ad0
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@ -2,7 +2,7 @@
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set -Eeuo pipefail
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########################################
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# Arch Linux RKE2 Worker Node
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# Arch Linux RKE2 Worker Node Prep
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#
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# What this script does:
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# - Disables swap
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@ -11,27 +11,15 @@ set -Eeuo pipefail
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# - Configures NetworkManager to ignore CNI interfaces
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# - Disables host nftables service to avoid breaking RKE2 service routing
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# - Installs RKE2 agent pinned to the same version as the master
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# - Optionally joins the worker to the cluster automatically
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# - Prepares the node for a later manual join
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#
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# Optional environment variables:
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# RKE2_VERSION=v1.34.5+rke2r1
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# SERVER_URL=https://10.28.24.17:9345
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# RKE2_TOKEN=your-node-token
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# WORKER_NODE_NAME=arch-kubernetes-worker1
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# START_RKE2=true
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#
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# Notes:
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# - If SERVER_URL and RKE2_TOKEN are both set, the script will configure
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# and start the worker automatically.
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# - If they are not set, the script will install everything and stop after
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# preparing the node.
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########################################
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RKE2_VERSION="${RKE2_VERSION:-v1.34.5+rke2r1}"
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SERVER_URL="${SERVER_URL:-}"
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RKE2_TOKEN="${RKE2_TOKEN:-}" # Get token from master sudo cat /var/lib/rancher/rke2/server/node-token
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WORKER_NODE_NAME="${WORKER_NODE_NAME:-}" # Name the worker
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START_RKE2="${START_RKE2:-true}"
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WORKER_NODE_NAME="${WORKER_NODE_NAME:-}"
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RKE2_CONFIG_DIR="/etc/rancher/rke2"
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RKE2_CONFIG_FILE="${RKE2_CONFIG_DIR}/config.yaml"
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@ -178,70 +166,28 @@ export PATH=$PATH:/var/lib/rancher/rke2/bin:/usr/local/bin
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EOF
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}
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write_config_if_possible() {
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log "Writing RKE2 agent config"
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write_config_template() {
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log "Writing worker config template"
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{
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if [[ -n "${SERVER_URL}" ]]; then
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echo "server: ${SERVER_URL}"
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fi
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if [[ -n "${RKE2_TOKEN}" ]]; then
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echo "token: ${RKE2_TOKEN}"
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fi
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echo "# Fill these in before starting rke2-agent:"
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echo "# server: https://YOUR_MASTER_IP:9345"
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echo "# token: YOUR_NODE_TOKEN"
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if [[ -n "${WORKER_NODE_NAME}" ]]; then
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echo "node-name: ${WORKER_NODE_NAME}"
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else
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echo "# node-name: optional-custom-node-name"
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fi
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} > "${RKE2_CONFIG_FILE}"
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chmod 600 "${RKE2_CONFIG_FILE}"
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}
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start_agent_if_possible() {
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disable_agent_until_manual_join() {
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log "Leaving rke2-agent disabled until manual join"
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systemctl daemon-reload
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systemctl enable rke2-agent.service
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if [[ "${START_RKE2}" != "true" ]]; then
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warn "START_RKE2=false, leaving rke2-agent disabled from startup execution"
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return
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fi
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if [[ -z "${SERVER_URL}" || -z "${RKE2_TOKEN}" ]]; then
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warn "SERVER_URL and/or RKE2_TOKEN not set. Worker is prepared but not joined."
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return
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fi
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log "Starting RKE2 agent"
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systemctl restart rke2-agent.service
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}
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wait_for_agent() {
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if [[ "${START_RKE2}" != "true" ]]; then
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return
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fi
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if [[ -z "${SERVER_URL}" || -z "${RKE2_TOKEN}" ]]; then
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return
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fi
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log "Waiting for rke2-agent service"
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local waited=0
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until systemctl is-active --quiet rke2-agent.service; do
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sleep 5
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waited=$((waited + 5))
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if (( waited % 30 == 0 )); then
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warn "rke2-agent not active yet; recent logs:"
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journalctl -u rke2-agent -n 40 --no-pager || true
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fi
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if (( waited >= 600 )); then
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journalctl -u rke2-agent -n 200 --no-pager || true
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die "Timed out waiting for rke2-agent to become active"
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fi
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done
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systemctl disable --now rke2-agent.service >/dev/null 2>&1 || true
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}
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print_summary() {
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@ -249,31 +195,24 @@ print_summary() {
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echo "RKE2 version: ${RKE2_VERSION}"
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echo "Config file: ${RKE2_CONFIG_FILE}"
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echo "Server URL: ${SERVER_URL:-<not set>}"
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echo "Node name: ${WORKER_NODE_NAME:-<default hostname>}"
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echo
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if [[ -n "${SERVER_URL}" && -n "${RKE2_TOKEN}" && "${START_RKE2}" == "true" ]]; then
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echo "Worker attempted automatic join."
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echo "Check from the master with:"
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echo " /var/lib/rancher/rke2/bin/kubectl get nodes -o wide"
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echo "This node has NOT joined the cluster yet."
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echo
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echo "Local diagnostics:"
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echo " sudo systemctl status rke2-agent --no-pager"
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echo " sudo journalctl -u rke2-agent -n 200 --no-pager"
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else
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echo "Worker is installed and ready, but not joined yet."
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echo
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echo "To join later, set these in ${RKE2_CONFIG_FILE}:"
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echo "Next steps:"
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echo "1. Edit ${RKE2_CONFIG_FILE}"
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echo "2. Set:"
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echo " server: https://YOUR_MASTER_IP:9345"
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echo " token: YOUR_NODE_TOKEN"
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if [[ -n "${WORKER_NODE_NAME}" ]]; then
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echo " node-name: ${WORKER_NODE_NAME}"
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fi
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echo
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echo "Then run:"
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echo "3. Start the agent:"
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echo " sudo systemctl enable --now rke2-agent"
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fi
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echo
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echo "Check status:"
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echo " sudo systemctl status rke2-agent --no-pager"
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echo " sudo journalctl -u rke2-agent -n 200 --no-pager"
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}
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main() {
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@ -284,9 +223,8 @@ main() {
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configure_networkmanager
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enable_support_services
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install_rke2_agent
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write_config_if_possible
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start_agent_if_possible
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wait_for_agent
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write_config_template
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disable_agent_until_manual_join
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print_summary
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}
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