110 lines
4.2 KiB
HCL
110 lines
4.2 KiB
HCL
job "install-podman-driver" {
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datacenters = ["dc1"]
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type = "system" # 在所有节点上运行
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group "install" {
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task "install-podman" {
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driver = "exec"
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config {
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command = "bash"
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args = [
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"-c",
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<<-EOF
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set -euo pipefail
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export PATH="/usr/local/bin:/usr/bin:/bin:/usr/sbin:/sbin"
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# 依赖工具
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if ! command -v jq >/dev/null 2>&1 || ! command -v unzip >/dev/null 2>&1 || ! command -v wget >/dev/null 2>&1; then
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echo "Installing dependencies (jq unzip wget)..."
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sudo -n apt update -y || true
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sudo -n apt install -y jq unzip wget || true
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fi
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# 安装 Podman（若未安装）
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if ! command -v podman >/dev/null 2>&1; then
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echo "Installing Podman..."
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sudo -n apt update -y || true
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sudo -n apt install -y podman || true
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sudo -n systemctl enable podman || true
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else
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echo "Podman already installed"
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fi
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# 启用并启动 podman.socket，确保 Nomad 可访问
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sudo -n systemctl enable --now podman.socket || true
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if getent group podman >/dev/null 2>&1; then
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sudo -n usermod -aG podman nomad || true
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fi
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# 安装 Nomad Podman 驱动插件（始终确保存在）
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PODMAN_DRIVER_VERSION="0.6.1"
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PLUGIN_DIR="/opt/nomad/data/plugins"
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sudo -n mkdir -p "${PLUGIN_DIR}" || true
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cd /tmp
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if [ ! -x "${PLUGIN_DIR}/nomad-driver-podman" ]; then
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echo "Installing nomad-driver-podman ${PODMAN_DRIVER_VERSION}..."
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wget -q "https://releases.hashicorp.com/nomad-driver-podman/${PODMAN_DRIVER_VERSION}/nomad-driver-podman_${PODMAN_DRIVER_VERSION}_linux_amd64.zip"
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unzip -o "nomad-driver-podman_${PODMAN_DRIVER_VERSION}_linux_amd64.zip"
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sudo -n mv -f nomad-driver-podman "${PLUGIN_DIR}/"
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sudo -n chmod +x "${PLUGIN_DIR}/nomad-driver-podman"
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sudo -n chown -R nomad:nomad "${PLUGIN_DIR}"
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rm -f "nomad-driver-podman_${PODMAN_DRIVER_VERSION}_linux_amd64.zip"
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else
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echo "nomad-driver-podman already present in ${PLUGIN_DIR}"
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fi
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# 更新 /etc/nomad.d/nomad.hcl 的 plugin_dir 设置
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if [ -f /etc/nomad.d/nomad.hcl ]; then
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if grep -q "^plugin_dir\s*=\s*\"" /etc/nomad.d/nomad.hcl; then
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sudo -n sed -i 's#^plugin_dir\s*=\s*\".*\"#plugin_dir = "/opt/nomad/data/plugins"#' /etc/nomad.d/nomad.hcl || true
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else
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echo 'plugin_dir = "/opt/nomad/data/plugins"' | sudo -n tee -a /etc/nomad.d/nomad.hcl >/dev/null || true
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fi
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fi
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# 重启 Nomad 服务以加载插件
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sudo -n systemctl restart nomad || true
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echo "Waiting for Nomad to restart..."
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sleep 15
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# 检查 Podman 驱动是否被 Nomad 检测到
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if /usr/local/bin/nomad node status -self -json 2>/dev/null | jq -r '.Drivers.podman.Detected' | grep -q "true"; then
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echo "Podman driver successfully loaded"
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exit 0
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fi
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echo "Podman driver not detected yet, retrying once after socket restart..."
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sudo -n systemctl restart podman.socket || true
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sleep 5
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if /usr/local/bin/nomad node status -self -json 2>/dev/null | jq -r '.Drivers.podman.Detected' | grep -q "true"; then
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echo "Podman driver successfully loaded after socket restart"
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exit 0
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else
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echo "Podman driver still not detected; manual investigation may be required"
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exit 1
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fi
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EOF
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]
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}
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resources {
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cpu = 200
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memory = 256
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}
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// 以root权限运行
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// user = "root"
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# 使用 nomad 用户运行任务，避免客户端策略禁止 root
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user = "nomad"
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# 确保任务成功完成
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restart {
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attempts = 1
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interval = "24h"
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delay = "60s"
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mode = "fail"
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}
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}
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}
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} |