├── .gitignore ├── LICENSE ├── README.md ├── dispatch.sh ├── images-abc.txt ├── pull.sh └── target-hosts.txt /.gitignore: -------------------------------------------------------------------------------- 1 | .vscode/ 2 | -------------------------------------------------------------------------------- /LICENSE: -------------------------------------------------------------------------------- 1 | Apache License 2 | Version 2.0, January 2004 3 | http://www.apache.org/licenses/ 4 | 5 | TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION 6 | 7 | 1. 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We also recommend that a 185 | file or class name and description of purpose be included on the 186 | same "printed page" as the copyright notice for easier 187 | identification within third-party archives. 188 | 189 | Copyright [yyyy] [name of copyright owner] 190 | 191 | Licensed under the Apache License, Version 2.0 (the "License"); 192 | you may not use this file except in compliance with the License. 193 | You may obtain a copy of the License at 194 | 195 | http://www.apache.org/licenses/LICENSE-2.0 196 | 197 | Unless required by applicable law or agreed to in writing, software 198 | distributed under the License is distributed on an "AS IS" BASIS, 199 | WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 200 | See the License for the specific language governing permissions and 201 | limitations under the License. 202 | -------------------------------------------------------------------------------- /README.md: -------------------------------------------------------------------------------- 1 | # docker-image-loader 2 | 3 | docker-image-loader 可以将一系列指定的 docker 镜像（外网环境）加载到一系列指定的目标（通常是内网环境）机器上。 4 | 5 | > * docker-image-loader 被大量使用在 K8S 管理工具 [kuboard](https://kuboard.cn) 的内网安装场景下； 6 | > * 可以完成类似任务的有 [sealos](https://github.com/fanux/sealos) 。（Sealos 是一款非常优秀的 Kubernetes 离线安装工具）。 7 | 8 | docker-image-loader 项目假设您有一台机器 A 能够访问外网，有另外一台机器 B 能够访问所有的目标机器（通常是内网环境），且您有办法从机器 A 传输文件到机器 B 上（或者机器 A、机器 B 是同一台机器）。 9 | 10 | 前提条件： 11 | * 机器 A 以及所有的目标机器都安装了 docker 12 | 13 | docker-image-loader 工作过程： 14 | 1. 在机器 A 上执行 `./pull.sh imagets-abc.txt` 以下载 `imagets-abc.txt` 文件中所指定的 docker image，镜像将被保存到 `imagets-abc.tar.gz` 文件中； 15 | 2. 将 `./dispatch.sh` 文件和 `imagets-abc.tar.gz` 文件复制到机器 B； 16 | 3. 在机器 B 上执行 `./dispatch.sh imagets-abc.tar.gz target-hosts.txt`，将前面步骤中下载到的镜像分发到 `target-hosts.txt` 文件中所定义的所有目标机器上。 17 | 18 | 具体操作过程描述如下： 19 | 20 | ## 准备工作 21 | 22 | ### 下载 docker-image-loader 23 | 24 | * 在机器 A 上创建一个临时目录，并切换到该目录 25 | 26 | ```sh 27 | mkdir docker-image-loader 28 | cd docker-image-loader 29 | ``` 30 | 31 | * 下载 docker-image-loader 32 | 33 | ```sh 34 | wget https://addons.kuboard.cn/downloads/docker-image-loader/dispatch.sh 35 | wget https://addons.kuboard.cn/downloads/docker-image-loader/pull.sh 36 | chmod +x dispatch.sh 37 | chmod +x pull.sh 38 | ``` 39 | 40 | ### 设置机器 B 可以无密码 ssh 访问所有目标机器 41 | 42 | > 如果您的机器 A 可以同时访问外网和内网，则 A 和 B 可以是同一台机器 43 | 44 | 在机器 B 上执行 45 | 46 | * 生成 key 文件，如果您已经有 ssh key 文件，无需再次生成 47 | 48 | ```sh 49 | ssh-keygen -t rsa 50 | ``` 51 | 52 | * 设置无密码访问 53 | 54 | ```sh 55 | # 将 ** 替换为目标主机的 IP 地址 56 | # 针对每个目标主机都要执行一次，如此，机器 B 可以无密码 ssh 访问所有目标机器 57 | ssh-copy-id -f -i ~/.ssh/id_rsa.pub root@** 58 | ``` 59 | 60 | ## 在机器 A 上下载镜像 61 | 62 | 63 | * 创建 `imagets-abc.txt` 文件，内容如下所示： 64 | 65 | 文件中的每一行代表一个镜像（需包含 TAG） 66 | > * 文件名称可以自定义 67 | > * 文件内容请修改为您自己期望的任意数量的镜像 68 | ``` 69 | quay.io/k8scsi/csi-provisioner:v1.6.0 70 | quay.io/k8scsi/csi-resizer:v0.5.0 71 | quay.io/k8scsi/csi-snapshotter:v2.1.1 72 | quay.io/k8scsi/csi-attacher:v2.1.1 73 | quay.io/cephcsi/cephcsi:v3.1.0 74 | quay.io/k8scsi/csi-node-driver-registrar:v1.3.0 75 | ``` 76 | 77 | * 执行下载任务 78 | 79 | ``` sh 80 | ./pull.sh imagets-abc.txt 81 | ``` 82 | 83 | 镜像下载任务完成之后，会在同目录下生成一个压缩文件 `imagets-abc.tar.gz` （文件名称与 imagets-abc.txt 相同，后缀不同） 84 | 85 | 86 | ## 将文件复制到机器 B 87 | 88 | 用你自己的办法，将如下两个文件复制到机器 B 的某个目录，假设路径是 `~/docker-image-loader`： 89 | * `dispatch.sh` 90 | * `imagets-abc.tar.gz` （在前一个步骤中生成的文件） 91 | 92 | ## 从机器 B 分发镜像到目标机器 93 | 94 | 在机器 B 上执行： 95 | 96 | * 切换到 `~/docker-image-loader` 目录 97 | 98 | ```sh 99 | cd ~/docker-image-loader 100 | ``` 101 | 102 | * 创建 `target-hosts.txt` 文件，内容如下 103 | 104 | ``` {1} 105 | /root/.ssh/id_rsa 106 | root@192.168.32.11:22 107 | root@192.168.32.12:22 108 | root@192.168.32.13:22 109 | root@192.168.32.14:22 110 | root@192.168.32.15:22 111 | ``` 112 | * 第一行为 ssh key 文件的路径，我们在前面 **设置机器 B 可以无密码 ssh 访问所有目标机器** 的步骤中，已经将该 key 对应的 .pub 文件复制到所有的目标服务器上，后续将使用该 key 文件作为认证信息，远程在目标服务器上执行指令； 113 | > 此处 ssh key 文件的路径必须使用绝对路径 114 | * 后面的每一行为一个目标机器的登录用户、IP 地址以及 ssh 端口（如果使用默认 22 端口，也需要在此处列出）。 115 | 116 | * 执行分发任务 117 | ``` sh 118 | chmod +x dispatch.sh 119 | ./dispatch.sh imagets-abc.tar.gz target-hosts.txt 120 | ``` 121 | 122 | **至此，您已经成功地将指定的 docker image 分发到指定的目标机器上。** 123 | -------------------------------------------------------------------------------- /dispatch.sh: -------------------------------------------------------------------------------- 1 | #!/bin/bash 2 | 3 | if [ x${1} = x ]; then 4 | echo -e "\033[31m 请在第一个命令行参数指定 *-images.txt 文件 \033[0m" 5 | exit 6 | fi 7 | 8 | if [ ! -f "${1}" ]; then 9 | echo -e "\033[31m 文件 ${1} 不存在 \033[0m" 10 | exit 11 | fi 12 | 13 | if [ x${2} = x ]; then 14 | echo -e "\033[31m 请在第二个命令行参数指定 target-hosts.txt 文件 \033[0m" 15 | exit 16 | fi 17 | 18 | if [ ! -f "${2}" ]; then 19 | echo -e "\033[31m 文件 ${2} 不存在 \033[0m" 20 | exit 21 | fi 22 | 23 | read line < ${2} 24 | 25 | prvKey=$(echo ${line}) 26 | 27 | if [ ! -f "${prvKey}" ]; then 28 | echo -e "\033[31m 文件 '${prvKey}' 不存在，请在文件 ${2} 的第一行指定 ssh privateKey 的路径 \033[0m" 29 | exit 30 | fi 31 | 32 | while read line 33 | do 34 | let count++ 35 | if [ ${count} -gt 1 ]; then 36 | 37 | line=$(echo $line) 38 | 39 | if [ x${line} = x ]; then 40 | continue 41 | fi 42 | 43 | user=$(echo ${line%@*}) 44 | ipport=$(echo ${line#*@}) 45 | ip=$(echo ${ipport%:*}) 46 | port=$(echo ${ipport#*:}) 47 | 48 | if [ x${user} = x${line} -o x${ip} = x${ipport} -o x${port} = x${ipport} ]; then 49 | echo -e "\033[31m 文件 ${2} 的第 ${count} 行应该符合 user@192.168.2.10:22 的格式，当前该行内容为： \033[0m" 50 | echo ${line} 51 | exit 52 | fi 53 | 54 | hostIndex=`expr ${count} - 1` 55 | echo -e "\033[36m>>>>> 开始分发镜像到第 ${hostIndex} 个目标主机 ${ip} >>>>>\033[0m" 56 | scp -P ${port} -i ${prvKey} ${1} ${user}@${ip}:~/ 57 | 58 | ssh -p ${port} -i ${prvKey} ${user}@${ip} "rm -rf ${1%???????} || true 59 | echo -e \"\033[36mstep ${hostIndex}.1 解压缩\033[0m\" 60 | tar zxvf ${1} 61 | echo -e \"\033[36mstep ${hostIndex}.2 加载镜像\033[0m\" 62 | while read line 63 | do 64 | let c++ 65 | line=\$(echo \${line}) 66 | if [ x\${line} = x ]; then 67 | echo -e \"Step ${hostIndex}.2.\${c} \033[33m第 \${c} 行为空\033[0m\" 68 | continue 69 | fi 70 | echo -e \"Step ${hostIndex}.2.\${c} sudo docker load < ${1%???????}/\${line//\//_}.tar \\t \\c\" 71 | line=\$(echo \$line) 72 | sudo docker load < ${1%???????}/\${line//\//_}.tar 73 | done < ${1%???????}/images.txt 74 | 75 | echo -e \"\033[36m加载到目标主机 ${ip} 的镜像如下\033[0m\" 76 | echo -e \"IMAGE ID\t CREATED\t\tSIZE\t\t REPOSITORY:TAG\" 77 | while read line 78 | do 79 | line=\$(echo \${line}) 80 | if [ x\${line} = x ]; then 81 | continue 82 | fi 83 | tag=\$(echo \${line%:*}) 84 | version=\$(echo \${line%:*}) 85 | sudo docker images \${line} --format \"table {{.ID}}\t{{.CreatedSince}}\t{{.Size}}\t{{.Repository}}:{{.Tag}}\" | grep \${tag} | grep \${version} 86 | done < ${1%???????}/images.txt 87 | 88 | echo 89 | echo -e \"\033[36m清理目标主机 ${ip} 上的临时文件\033[0m\" 90 | rm -rf ${1%???????} || true 91 | rm -rf ${1} || true 92 | echo 93 | " < /dev/null 94 | 95 | echo -e "\033[32m<<<<< 已结束将镜像分发到第 ${hostIndex} 个目标主机 ${ip} <<<<<\033[0m" 96 | echo "" 97 | fi 98 | done < ${2} 99 | 100 | echo -e "\033[32m----- 已结束将镜像分发到 ${2} 文件中定义的所有主机 -----\033[0m" 101 | 102 | echo "" 103 | -------------------------------------------------------------------------------- /images-abc.txt: -------------------------------------------------------------------------------- 1 | eipwork/kuboard:latest 2 | busybox:latest 3 | -------------------------------------------------------------------------------- /pull.sh: -------------------------------------------------------------------------------- 1 | #!/bin/bash 2 | 3 | folder=${1%.*} 4 | 5 | if [ x"${folder}" = x ]; then 6 | echo -e "\033[31m 请指定 *-images.txt 文件 \033[0m" 7 | exit 8 | fi 9 | 10 | echo "" 11 | echo "创建临时文件夹 ${folder}" 12 | echo "" 13 | rm -rf ${folder} || true 14 | mkdir ${folder} 15 | 16 | while read line 17 | do 18 | let count++ 19 | line=$(echo $line) 20 | if [ x${line} = x ]; then 21 | echo -e "\033[33m第 ${count} 行为空\033[0m" 22 | echo 23 | continue 24 | fi 25 | echo ">>>>> 下载第 ${count} 个镜像 ${line} >>>>>" 26 | docker pull $line 27 | echo -e "\033[32m<<<<< 保存第 ${count} 个镜像到 ${folder}/${line//\//_}.tar \033[0m" 28 | docker save $line > ${folder}/${line//\//_}.tar 29 | echo "" 30 | done < ${1} 31 | 32 | echo "----- 创建压缩文件 ${folder}.tar.gz -----" 33 | cp ${1} ${folder}/images.txt 34 | tar -zcvf ${folder}.tar.gz ${folder}/*.tar ${folder}/images.txt 35 | 36 | echo -e "\033[32m----- 已压缩到文件 ${folder}.tar.gz ----- \033[0m" 37 | echo -e "文件大小为 \c" 38 | ls -hl ${folder}.tar.gz | awk '{print $5}' 39 | 40 | echo "" 41 | echo "清除临时文件夹 ${folder}" 42 | rm -rf ${folder} 43 | 44 | echo "" 45 | echo "请执行以下指令，将镜像分发到 ./target-hosts.txt 文件中定义的目标主机上。" 46 | echo -e "\033[36m./dispatch.sh ${folder}.tar.gz target-hosts.txt \033[0m" 47 | echo "" 48 | -------------------------------------------------------------------------------- /target-hosts.txt: -------------------------------------------------------------------------------- 1 | /root/.ssh/id_rsa_p 2 | root@192.168.2.80:22 3 | root@192.168.2.81:22 4 | root@192.168.2.82:22 5 | root@192.168.2.83:22 6 | --------------------------------------------------------------------------------