docker build failing with Could not resolve 'archive.ubuntu.com'
I cannot build my image with the following Dockerfile:
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"]
Seems like it’s having trouble connecting to the internet to install ubuntu packages and failing with:
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
Any suggestions for how to resolve or test this problem? Running on El Capitan OSX
4 Solutions collect form web for “docker build failing with Could not resolve 'archive.ubuntu.com'”
This has been answered at
Docker build "Could not resolve 'archive.ubuntu.com'" apt-get fails to install anything
This also affects yum and other repo mangers since we expect them to be accessible but the containers have only the network settings allowed in the host
I like to add these lines at the start of my scripts:
#DNS update: This is needed to run yum and to let the docker build process access the internet. RUN "sh" "-c" "echo nameserver 22.214.171.124 >> /etc/resolv.conf"
From the comments below: when you move between networks say between wifi networks or between home and work the container doesn’t know it’s in a new network. Restarting the VM or Docker machine is the best fix.
On an Ubuntu host for me the following Entry in /etc/default/docker
sudo systemctl daemon-reload sudo systemctl restart docker
helped to fix network connection issues. Of course you need to replace 172.21.32.182 with your dns.
See https://github.com/boot2docker/boot2docker/issues/451#issuecomment-65432123. What is likely happening is that your VirtualBox NAT DNS proxy has a stale route. You usually have to reboot the VM to get this working again.
Another workaround is to just have the VM use your hosts resolver (which should be updated when the DHCP hands out new name servers). Assuming your machine was named
dev under Docker Machine, you can do something like:
docker-machine stop dev VBoxManage modifyvm dev --natdnsproxy1 off --natdnshostresolver1 off docker-machine start dev
Docker build fails because of the warning
---> [Warning] IPv4 forwarding is disabled. Networking will not work
even if you can resolve the
- firewall on.
- In my case centos7-Add the following to
/etc/sysctl.conf: net.ipv4.ip_forward = 1
- Apply the sysctl settings: