116 lines
2.6 KiB
Bash
Executable File
116 lines
2.6 KiB
Bash
Executable File
#!/bin/bash
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set -euo pipefail
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GREEN='\033[0;32m'
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YELLOW='\033[1;33m'
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RED='\033[0;31m'
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NC='\033[0m'
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log_info() {
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echo -e "${GREEN}[INFO]${NC} $1"
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}
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log_warn() {
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echo -e "${YELLOW}[WARN]${NC} $1"
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}
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log_err() {
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echo -e "${RED}[ERROR]${NC} $1"
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}
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# 检查 root 权限
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if [ "$EUID" -ne 0 ]; then
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log_err "请使用 root 权限执行此脚本（如: sudo bash $0）"
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exit 1
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fi
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log_info "=========================================="
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log_info "开始初始化实验环境..."
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log_info "=========================================="
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REPO_DIR="/etc/yum.repos.d"
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BACKUP_DIR="/etc/yum.repos.d.bak"
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# 首次运行时备份原有软件源
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if [ ! -d "$BACKUP_DIR" ]; then
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log_info "备份原有 yum 软件源..."
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cp -a "$REPO_DIR" "$BACKUP_DIR"
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fi
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# 配置 CentOS 7.9 基础源
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log_info "配置 CentOS 7.9 阿里云软件源..."
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cat > "$REPO_DIR/CentOS-Base.repo" <<'EOF'
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[base]
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name=CentOS-7 - Base - Aliyun
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baseurl=http://mirrors.aliyun.com/centos-vault/7.9.2009/os/$basearch/
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gpgcheck=0
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enabled=1
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[updates]
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name=CentOS-7 - Updates - Aliyun
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baseurl=http://mirrors.aliyun.com/centos-vault/7.9.2009/updates/$basearch/
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gpgcheck=0
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enabled=1
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[extras]
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name=CentOS-7 - Extras - Aliyun
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baseurl=http://mirrors.aliyun.com/centos-vault/7.9.2009/extras/$basearch/
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gpgcheck=0
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enabled=1
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EOF
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# 配置 QEMU EV 源
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cat > "$REPO_DIR/CentOS-QEMU-EV.repo" <<'EOF'
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[centos-qemu-ev]
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name=CentOS-7 - QEMU EV - Aliyun
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baseurl=http://mirrors.aliyun.com/centos-vault/7.9.2009/virt/$basearch/kvm-common/
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gpgcheck=0
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enabled=1
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EOF
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# 配置 OpenStack Rocky 源
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cat > "$REPO_DIR/CentOS-OpenStack-rocky.repo" <<'EOF'
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[centos-openstack-rocky]
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name=CentOS-7 - OpenStack Rocky - Aliyun
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baseurl=http://mirrors.aliyun.com/centos-vault/7.9.2009/cloud/$basearch/openstack-rocky/
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gpgcheck=0
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enabled=1
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exclude=sip,PyQt4
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EOF
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# 删除不再需要的 Ceph 源，避免 yum 读取其元数据
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rm -f "$REPO_DIR/CentOS-Ceph-Luminous.repo"
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# 清除旧仓库元数据，保留已下载的软件包缓存
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log_info "刷新软件源元数据..."
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yum clean metadata > /dev/null 2>&1
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# 安装 KVM / libvirt
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log_info "安装/检查虚拟化软件包..."
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yum install -y \
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qemu-kvm \
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libvirt \
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virt-install \
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bridge-utils \
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qemu-img
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# 启动 libvirtd
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log_info "启动 libvirtd 服务..."
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systemctl enable --now libvirtd > /dev/null
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# 验证服务状态
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if systemctl is-active --quiet libvirtd; then
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log_info "libvirtd 状态正常。"
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else
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log_err "libvirtd 启动失败！"
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exit 1
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fi
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log_info "=========================================="
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log_info "实验环境初始化完成！"
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log_info "==========================================" |