构建阶段1构建阶段2构建阶段3构建阶段4最终镜像 3. 使用FROM as builder的步骤 在Dockerfile 中使用FROM as builder需要按照以下步骤进行: 下面是具体的代码示例: # 构建阶段FROMbuilder_imageasbuilderRUN<编译命令>RUN<打包命令># 运行阶段FROMbase_imageCOPY--from=builder <destination>RUN<运行命令>CMD<启动命令>...
1. 虚拟机可以完美的隔离运行进程;但是对计算资源、网络和磁盘 I/O 的损耗非常大。 2. 容器化隔离不彻底;但是不存在真正的docker容器,所占资源可以忽略不计。 3. 虚拟机不仅有模拟出来的硬件机器充当沙盒,而且每个沙盒里还运行着一个完整的 Guest OS。 1. 2. 3. 4. 5. 限制 Cgroups 1. Linux Cgroups ...
为了方便管理,您也可以通过向 FROM 指令添加 as NAME 来命名您的各个构建阶段。下面的示例就通过命名各个构建阶段并在 COPY 指令中使用名称来访问指定的构建阶段。这样做的好处就是即使稍后重新排序 Dockerfile 中的指令,COPY 指令一样能找到对应的构建阶段。 FROM golang:1.7.3 as builder WORKDIR /go/src/github...
在Dockerfile中通过AS指定了阶段名,这时我们可以通过alias别名加--target参数指定阶段构建镜像。 举个例子: $ docker build--target builder -t sweeneys/helloworld:targetbuilder . Sending build contexttoDocker daemon3.072kB Step1/5:FROMgolang:1.13.5ASbuilder ---> ed081345a3da Step2/5: WORKDIR/go/src...
{ "allow-nondistributable-artifacts": [], "api-cors-header": "", "authorization-plugins": [], "bip": "", "bridge": "", "builder": { "gc": { "enabled": true, "defaultKeepStorage": "10GB", "policy": [ { "keepStorage": "10GB", "filter": ["unused-for=2200h"] }, { ...
在使用FROM指令时,您可以引用前一阶段的内容。例如: 代码语言:javascript 复制 FROMalpine:latestasbuilderRUNapk--no-cache add build-baseFROMbuilderasbuild1COPYsource1.cpp source.cppRUNg++-o/binary source.cppFROMbuilderasbuild2COPYsource2.cpp source.cppRUNg++-o/binary source.cpp...
FROMnode:13.12.0ASdevelopmentENVCI=trueENVPORT=3000WORKDIR/codeCOPYpackage.jsonpackage-lock.json/code/RUNnpm ciCOPYsrc/code/srcCMD["npm","start"]FROMdevelopmentASbuilderRUNnpm run buildFROMnginx:1.17.9ASproductionCOPY–from=builder/code/build/usr/share/nginx/html ...
$docker run --helpUsage: docker run [OPTIONS] IMAGE [COMMAND] [ARG...]Create and run a new container from an imageOptions:--add-host value Add a custom host-to-IP mapping (host:ip) (default [])-a, --attach value Attach to STDIN, STDOUT or STDERR (default [])<...> ...
# 第一阶段:构建应用程序FROMnode:14-alpineASbuilderWORKDIR/appCOPYpackage*.json ./RUNnpm installCOPY. .RUNnpm run build# 第二阶段:运行应用程序FROMnginx:1.21-alpineCOPY--from=builder/app/dist /usr/share/nginx/html 在这个 Dockerfile 中,第一阶段使用 node:14-alpine 镜像作为基础镜像,创建了一个名...
FROM development AS builderRUN npm run buildFROM nginx:1.17.9 AS productionCOPY --from=builder /code/build /usr/share/nginx/html Each time you see FROM… AS… it’s a build stage.So we now have a development, a build, and a production stage.We can continue to use a container for ...