Question

我无法使用以下Dockerfile构建我的图像：

FROM ubuntu

RUN apt-get -y update && apt-get -y install \
nodejs npm ssh

# cache npm install when package.json hasn't changed
WORKDIR /tmp
ADD package.json package.json
RUN npm install
RUN npm install -g pm2

RUN mkdir /sparrow
RUN cp -a /tmp/node_modules /sparrow

WORKDIR /sparrow
ADD . /sparrow/
RUN npm run build

# ssh keys
WORKDIR /root
RUN mv /sparrow/.ssh /root/

# upload js and css
WORKDIR /sparrow/build
# UPLOAD TO S3!

# go back to /sparrow
WORKDIR /sparrow

ENV NODE_ENV production
ENV NODE_PATH "./src"

EXPOSE 8000
CMD ["pm2", "start", "./bin/server.js", "--no-daemon", "-i", "0"]

似乎无法连接到互联网以安装ubuntu软件包并且无法使用：

Err http://archive.ubuntu.com trusty InRelease

Err http://archive.ubuntu.com trusty-updates InRelease

Err http://archive.ubuntu.com trusty-security InRelease

Err http://archive.ubuntu.com trusty Release.gpg
  Could not resolve 'archive.ubuntu.com'
Err http://archive.ubuntu.com trusty-updates Release.gpg
  Could not resolve 'archive.ubuntu.com'
Err http://archive.ubuntu.com trusty-security Release.gpg
  Could not resolve 'archive.ubuntu.com'
Reading package lists...
W: Failed to fetch http://archive.ubuntu.com/ubuntu/dists/trusty/InRelease

W: Failed to fetch http://archive.ubuntu.com/ubuntu/dists/trusty-updates/InRelease

W: Failed to fetch http://archive.ubuntu.com/ubuntu/dists/trusty-security/InRelease

W: Failed to fetch http://archive.ubuntu.com/ubuntu/dists/trusty/Release.gpg  Could not resolve 'archive.ubuntu.com'

W: Failed to fetch http://archive.ubuntu.com/ubuntu/dists/trusty-updates/Release.gpg  Could not resolve 'archive.ubuntu.com'

W: Failed to fetch http://archive.ubuntu.com/ubuntu/dists/trusty-security/Release.gpg  Could not resolve 'archive.ubuntu.com'

W: Some index files failed to download. They have been ignored, or old ones used instead.
Reading package lists...
Building dependency tree...
Reading state information...
E: Unable to locate package nodejs
E: Unable to locate package npm

有关如何解决或测试此问题的任何建议？在El Capitan OSX上运行

谢谢！

Answer 1

已经回答了这个问题的 Docker build "Could not resolve 'archive.ubuntu.com'" apt-get fails to install anything

这也会影响yum和其他repo manger，因为我们希望它们可以访问，但容器只有主机允许的网络设置

我喜欢在我的脚本开头添加这些行：

#DNS update: This is needed to run yum and to let the docker build process access the internet. RUN "sh" "-c" "echo nameserver 8.8.8.8 >> /etc/resolv.conf"

更新：从下面的评论：当你在网络之间移动时说在wifi网络之间或家庭和工作之间，容器在新网络中不知道它。重启VM或Docker机器是最好的解决方法。

Answer 2

在Ubuntu主机上为我提供/ etc / default / docker

中的以下条目

DOCKER_OPTS="--dns 172.21.32.182"

然后：

sudo systemctl daemon-reload
sudo systemctl restart docker

帮助解决了网络连接问题。当然，你需要用你的dns替换172.21.32.182。

Answer 3

见https://github.com/boot2docker/boot2docker/issues/451#issuecomment-65432123。可能发生的是您的VirtualBox NAT DNS代理有一个陈旧的路由。您通常必须重新启动VM以使其再次运行。

另一种解决方法是让VM使用您的主机解析器（当DHCP分发新名称服务器时应该更新）。假设您的计算机在Docker Machine下名为dev，您可以执行以下操作：

docker-machine stop dev
VBoxManage modifyvm dev --natdnsproxy1 off --natdnshostresolver1 off
docker-machine start dev

Answer 4

由于警告，Docker构建失败 ---> [Warning] IPv4 forwarding is disabled. Networking will not work 即使您可以解决archive.ubuntu.com 溶液 -

防火墙。
在我的案例中，centos7-添加以下内容 /etc/sysctl.conf:net.ipv4.ip_forward = 1
应用sysctl设置： sysctl -p

docker build失败，无法解析＆＃39; archive.ubuntu.com＆＃39;

4 个答案: