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使用外接服务存储 OS Repo 资源

本文描述如何使用第三方存储服务的 OS Repo 资源并且在安装器安装时进行指定。支持两种类型:S3 兼容服务(如 minio),非 S3 兼容服务(如 nginx)

前提条件

操作步骤

使用 S3 兼容服务

S3 兼容的服务只需要在 集群配置文件 clusterConfig.yaml 中简单配置即可,无需其他操作。

  1. 集群配置文件 clusterConfig.yaml 中,配置 osRepo 相关的参数:

    apiVersion: provision.daocloud.io/v1alpha3
    kind: ClusterConfig
    metadata:
    spec:
    ..........
    osRepos:
        type: external
        isoPath: "/root/CentOS-7-x86_64-DVD-2009.iso"
        osPackagePath: "/root/os-pkgs-centos7-v0.4.4.tar.gz"
        externalRepoEndpoint: https://external-repo.daocloud.io
        externalRepoUsername: rootuser
        externalRepoPassword: rootpass123
    ..........
    

    Note

    给定的用户名需要具有 bucket 的读写权限。

使用非 S3 兼容服务

非 S3 兼容的服务需要先手动将下载好的 ISO 操作系统镜像文件、osPackage 离线包导入, 然后在集群配置文件 clusterConfig.yaml 中配置相关参数。

以下内容以 CentOS 7.9 x86_64 作为集群节点,使用 nignx 作为 http server, 理论上其他通用 http server 也能支持,需要注意 URL 访问路径和文件路径的映射关系。

  1. 确保有一个可用的 nginx 服务,及服务所在节点的登录和文件写入权限;

  2. 下载/拷贝 ISO 操作系统镜像文件、osPackage 离线包至 nginx 服务所在节点,并将 ISO 导入脚本从火种节点拷贝至 nginx 服务所在节点;

    Note

    ISO 导入脚本在离线包镜像包中,路径为 ./offline/offline-iso/import_iso.sh

  3. 确定需要导入的路径;

    1. 通过 nginx.conf (nginx -t 命令查看改文件路径) 检测 nginx 服务所在节点的文件路径和 URL 路径的映射关系,下方示例供参考:

      http {
          server {
              listen       8080;
              server_name  _;
              location / {
                  root   /usr/share/nginx/html;
                  index  index.html index.htm;
              }
          }
      }
      

    上方配置说明 nginx http 服务的访问根路径映射本地目录 /usr/share/nginx/html

    1. 如果是普通方式部署的 nginx 服务,则选定导入路径为 /usr/share/nginx/html

    2. 如果是容器部署的 nginx 服务,需要挂载宿主机路径至容器,且挂载的宿主机路径对应着映射了 http 服务的容器本地路径,即存在这样的关系: http-path -> container-path -> host-path。则导入路径应为 host-path,host-path 需要手动按照附录 2 确认。

  4. 执行如下命令导入 ISO 操作系统镜像文件、osPackage 离线包:

    cat > import.sh << "EOF"
    [ ! -d "${MAPPING_PATH}" ] && echo "mapping path ${MAPPING_PATH} not found" && exit 1
    [ ! -x "${ISO_IMPORT_SH_PATH}" ] && echo "iso import script ${ISO_IMPORT_SH_PATH} not found or not executable" && exit 1
    [ ! -f "${OS_PKGS_PATH}" ] && echo "os pkgs ${OS_PKGS_PATH} not found" && exit 1
    [ ! -f "${ISO_PATH}" ] && echo "iso ${ISO_PATH} not found" && exit 1
    tar -xzvf ${OS_PKGS_PATH} && for arch in amd64 arm64; do tar --strip-components=1 -xzvf os-pkgs/os-pkgs-${arch}.tar.gz -C ${MAPPING_PATH}; done && rm -rf os-pkgs
    bash ${ISO_IMPORT_SH_PATH} ${MAPPING_PATH} ${ISO_PATH}
    EOF
    export MAPPING_PATH="/usr/share/nginx/html"
    export ISO_IMPORT_SH_PATH="./import_iso.sh"
    export OS_PKGS_PATH="./os-pkgs-centos7-v0.4.5-rc3.tar.gz"
    export ISO_PATH="./CentOS-7-x86_64-DVD-2009.iso"
    bash ./import.sh
    

    其中环境变量 MAPPING_PATH 代表步骤 3 中提及的导入路径

  5. 验证是否导入成功

    登录一台全局服务集群节点,假设 nignx 访问地址为 http://10.0.1.1:8080,参考附录 1 进行配置,执行如下命令:

    cat > /etc/yum.repos.d/test.repo << "EOF"
    [test0]
    baseurl = http://10.1.1.1:8080/centos/$releasever/os/$basearch
    gpgcheck = 0
    name = test0
    
    [test1]
    baseurl = http://10.1.1.1:8080/kubean/centos-iso/$releasever/os/$basearch
    gpgcheck = 0
    name = test0
    EOF
    yum clean all && yum makecache --disablerepo=* --enablerepo=test0,test1
    

    Note

    其他操作系统也是类似操作,因为具体的操作系统的包管理器的软件源配置有一些差异

  6. 集群配置文件 clusterConfig.yaml 中,配置 osRepo 相关的参数,externalRepoURLs 参考附录 1。

    apiVersion: provision.daocloud.io/v1alpha3
    kind: ClusterConfig
    metadata:
    spec:
      ..........
      osRepos:
        type: external
        # `centos` as CentOS, RedHat,kylin AlmaLinux or Fedora,Openeuler
        # `debian` as Debian
        # `ubuntu` as Ubuntu
        externalRepoType: centos
        externalRepoURLs:
          - 'http://10.0.1.1:8080/centos/\$releasever/os/\$basearch/'
          - 'http://10.0.1.1:8080/centos-iso/\$releasever/os/\$basearch/'
      ..........
    
  7. 完成上述配置后,可以继续执行部署 DCE 5.0 商业版

附录

1. 操作系统与对应的 RepoURLs

${address_prefix} 替换为 HTTP 服务的外部访问地址,如 http://10.0.1.1:8080

OS RepoURLs
CentOS ['${address_prefix}/centos/\$releasever/os/\$basearch','${address_prefix}/centos-iso/\$releasever/os/\$basearch']
RedHat ['${address_prefix}/redhat/\$releasever/os/\$basearch','${address_prefix}/redhat-iso/\$releasever/os/\$basearch/BaseOS','${address_prefix}/redhat-iso/\$releasever/os/\$basearch/AppStream']
Kylin V10 ['${address_prefix}/kubean/kylin/\$releasever/os/\$basearch','${address_prefix}/kubean/kylin-iso/\$releasever/os/\$basearch']
UOS V20 ['${address_prefix}/kubean/uos/\$releasever/os/\$basearch','${address_prefix}/kubean/uos-iso/\$releasever/os/\$basearch/AppStream','${address_prefix}/kubean/uos-iso/\$releasever/os/\$basearch/BaseOS']
Oracle 9 ['${address_prefix}/kubean/oracle/\$releasever/os/\$basearch','${address_prefix}/kubean/oracle-iso/\$releasever/os/\$basearch/AppStream','${address_prefix}/kubean/oracle-iso/\$releasever/os/\$basearch/BaseOS']
OpenEuler 20.03 ['${address_prefix}/kubean/openeuler/22.03/os/\$basearch','${address_prefix}/kubean/openeuler-iso/22.03/os/\$basearch']
Ubuntu bionic ['deb [trusted=yes] ${address_prefix}/kubean/ubuntu/amd64 bionic/','deb [trusted=yes] ${address_prefix}/kubean/ubuntu-iso bionic main restricted']
Ubuntu focal ['deb [trusted=yes] ${address_prefix}/kubean/ubuntu/amd64 focal/','deb [trusted=yes] ${address_prefix}/kubean/ubuntu-iso focal main restricted']

2. 查看容器卷挂载列表

CLI tool Command
docker docker inspect ${CONTAINER_ID} -f '{{range .Mounts}}{{printf "hostPath: %s containerPath: %s\n" .Source .Destination}}{{end}}'
nerdctl nerdctl inspect ${CONTAINER_ID} -f '{{range .Mounts}}{{printf "hostPath: %s containerPath: %s\n" .Source .Destination}}{{end}}'
podman podman inspect ${CONTAINER_ID} -f '{{range .Mounts}}{{printf "hostPath: %s containerPath: %s\n" .Source .Destination}}{{end}}'
crictl crictl inspect -o go-template --template '{{range .status.mounts}}{{printf "hostPath: %s containerPath: %s\n" .hostPath .containerPath }}{{end}}' ${CONTAINER_ID}
ctr ctr c info ${CONTAINER_ID} --spec 检查 mounts 字段
kubectl kubectl -n ${NAMESPACE} get pod ${POD_NAME} -oyaml 检查 volumes 和 volumeMounts 字段

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