构建Docker镜像在桌面上运行没有问题。安装Node.js NPM依赖项正常工作。但是,当使用在公司代理后面托管的持续集成服务器(如Jenkins)时,构建Docker映像会失败。
在构建Node.js pacakges时,命令 npm install 在克隆GIT依赖项时无法连接到GIT时失败。
e1ce5e8407d1: Already exists
Status: Image is up to date for node:0.10.33
---> e1ce5e8407d1
Step 1 : RUN mkdir -p /usr/src/app
---> Using cache
---> 965cad0c68b0
Step 2 : WORKDIR /usr/src/app
---> Using cache
---> 4c498f0c07e9
Step 3 : COPY package.json /usr/src/app/
---> b0662a8275fb
Removing intermediate container 5aca20551452
Step 4 : RUN npm install
---> Running in 7ccf9e5362af
npm WARN package.json newww@2.0.0 No README data
npm WARN package.json Dependency 'async-cache' exists in both dependencies and devDependencies, using 'async-cache@^0.1.5' from dependencies
npm ERR! git clone https://github.com/npm/npm2es.git Cloning into bare repository '/root/.npm/_git-remotes/https-github-com-npm-npm2es-git-60a75edb'...
npm ERR! git clone https://github.com/npm/npm2es.git fatal: unable to access 'https://github.com/npm/npm2es.git/': Failed to connect to github.com port 443: Connection timed out
构建Java,Ruby或Go容器时也是如此,其中依赖项位于公司代理服务器上的存储库服务器中。
知道您可以使用HTTP_PROXY环境变量配置Docker,如何正确配置Docker以在CI环境中正确构建映像?
答案 0 :(得分:31)
注意:Docker 1.9 可能有助于解决此问题:
HTTP_PROXY
)用法(建议):
docker build --build-arg http_proxy=http://my.proxy.url --build-arg foo=bar <<MARK
FROM busybox
RUN <command that need http_proxy>
ARG --description="foo's description" foo
USER $foo
MARK
答案 1 :(得分:10)
有很多关于为Docker守护进程设置HTTP_PROXY环境变量的文档。环境变量仅在正在运行的容器时可用,因此它不会在这里帮助我们。
虽然在Dockerfile中设置环境变量 HTTP_ENV 或 http_env 可能有所帮助,但它也无济于事。
ENV http_proxy http://proxy.mycompany.com:80
原因是每个特定服务仅以不同方式遵循HTTP代理设置。我可以解决的方法如下。
例如,使用Dockerfile运行应用程序,我可以使用以下Dockerfile构建映像:
FROM node:0.10.33
# Prepare
RUN mkdir -p /usr/src/app
WORKDIR /usr/src/app
# Use the cache for dependencies
COPY package.json /usr/src/app/
# If building behind an http_proxy, set them for git and npm
RUN git config --global http.proxy http://qypprdproxy02.ie.company.net:80 && \
npm config set proxy http://qypprdproxy02.ie.company.net:80 && \
npm config set https-proxy http://qypprdproxy02.ie.company.net:80
# Install dependencies
RUN npm install
# Copy all the source
COPY . /usr/src/app
# Execute the dev steps
COPY ./numbat-config.example.js /usr/src/app/numbat-config.js
COPY ./.env.example /usr/src/app/.evn
RUN touch /usr/src/app/config.admin.js
请注意,我已使用CLI命令配置了GIT和NPM,以便在运行NPM安装命令之前显式获取代理设置。这样,NPM和GIT依赖关系将分别自动检索和克隆。
使用此Dockerfile构建映像的结果按预期工作:
[root@pppdc9prd6dq newww]# fig build
...
...
Building npmregistryserver...
---> Using cache
---> 965cad0c68b0
Step 2 : WORKDIR /usr/src/app
---> Using cache
---> 4c498f0c07e9
Step 3 : COPY package.json /usr/src/app/
---> ae8ff7861246
Removing intermediate container ba1d7b8c9963
Step 4 : RUN npm config set proxy http://qypprdproxy02.ie.company.net:80 && npm config set https-proxy http://qypprdproxy02.ie.company.net:80 && npm install
---> Running in aa6e05d9c7a4
npm WARN package.json newww@2.0.0 No README data
npm WARN package.json Dependency 'async-cache' exists in both dependencies and devDependencies, using 'async-cache@^0.1.5' from dependencies
npm WARN deprecated extend@1.1.3: Please update to the latest version.
> v8flags@1.0.8 install /usr/src/app/node_modules/gulp/node_modules/v8flags
> node fetch.js
> hiredis@0.1.17 install /usr/src/app/node_modules/hiredis
> node-gyp rebuild
make: Entering directory '/usr/src/app/node_modules/hiredis/build'
CC(target) Release/obj.target/hiredis/deps/hiredis/hiredis.o
CC(target) Release/obj.target/hiredis/deps/hiredis/net.o
CC(target) Release/obj.target/hiredis/deps/hiredis/sds.o
CC(target) Release/obj.target/hiredis/deps/hiredis/async.o
AR(target) Release/obj.target/deps/hiredis.a
COPY Release/hiredis.a
CXX(target) Release/obj.target/hiredis/src/hiredis.o
CXX(target) Release/obj.target/hiredis/src/reader.o
SOLINK_MODULE(target) Release/obj.target/hiredis.node
SOLINK_MODULE(target) Release/obj.target/hiredis.node: Finished
COPY Release/hiredis.node
make: Leaving directory '/usr/src/app/node_modules/hiredis/build'
npm WARN engine hawk@0.10.2: wanted: {"node":"0.8.x"} (current: {"node":"0.10.33","npm":"2.1.11"})
> pngcrush-bin@1.0.0 postinstall /usr/src/app/node_modules/imagemin-pngcrush/node_modules/pngcrush-bin
> node lib/install.js
fetch : https://raw.githubusercontent.com/imagemin/pngcrush-bin/v1.0.0/vendor/linux/pngcrush
✔ pre-build test passed successfully!
> dtrace-provider@0.3.1 install /usr/src/app/node_modules/npm-typeahead/node_modules/restify/node_modules/dtrace-provider
> scripts/install.js
npm WARN engine cryptiles@0.1.3: wanted: {"node":"0.8.x"} (current: {"node":"0.10.33","npm":"2.1.11"})
npm WARN engine sntp@0.1.4: wanted: {"node":"0.8.x"} (current: {"node":"0.10.33","npm":"2.1.11"})
npm WARN engine boom@0.3.8: wanted: {"node":"0.8.x"} (current: {"node":"0.10.33","npm":"2.1.11"})
npm WARN engine hoek@0.7.6: wanted: {"node":"0.8.x"} (current: {"node":"0.10.33","npm":"2.1.11"})
npm WARN cannot run in wd newww@2.0.0 gulp build (wd=/usr/src/app)
newww-metrics@1.0.0 node_modules/newww-metrics
murmurhash@0.0.2 node_modules/murmurhash
npm-humans@2.0.1 node_modules/npm-humans
leven@1.0.1 node_modules/leven
chunk@0.0.2 node_modules/chunk
npm-expansions@1.14.0 node_modules/npm-expansions
similarity@1.0.1 node_modules/similarity
truncate@1.0.4 node_modules/truncate
这正常按预期工作,您可以在http代理后面有一个CI / CD环境,以根据此Dockerfile重建图像。
答案 2 :(得分:7)
我意识到OP已经解决了这个问题,但想分享最终适合我的内容,因为当我在搜索问题的答案时,这个页面在搜索结果中显得很高。作为参考,我无法让Docker使用代理通过pip进行安装。
我不得不做
docker build --no-cache --build-arg HTTP_PROXY=$http_proxy \
--build-arg HTTPS_PROXY=$http_proxy --build-arg NO_PROXY="$no_proxy" \
--build-arg http_proxy=$http_proxy --build-arg https_proxy=$http_proxy \
--build-arg no_proxy="$no_proxy" -t myContainer /path/to/Dockerfile/directory
我的bashrc中设置了http_proxy和no_proxy。请注意,我也有
ENV http_proxy http://proxy.mycompany.com:80
在我的Dockerfile中设置,但这本身并不足以让pip安装任何东西。希望这有助于其他人。
答案 3 :(得分:3)
我们正在做......
ENV http_proxy http://9.9.9.9:9999
ENV https_proxy http://9.9.9.9:9999
并在dockerfile结尾...
ENV http_proxy ""
ENV https_proxy ""
现在(直到docker引入build env vars),允许代理变量用于构建而不公开它们
答案 4 :(得分:1)
从Docker 17.07开始,您还可以使用Docker Client配置文件来集中提供代理配置:
https://docs.docker.com/network/proxy/#configure-the-docker-client
答案 5 :(得分:0)
当企业网络不允许下载和设置docker image时,我遇到了问题,因此n / w给出了http代理信息。在运行docker image build时,我传递了变量,它没有任何问题。
docker build --build-arg http_proxy="http://userid:pwd@iaisystem.com:8080" - < Dockerfile
答案 6 :(得分:0)
您可以使用透明代理,如以下所述:
https://jpetazzo.github.io/2014/06/17/transparent-squid-proxy-docker/
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