在Docker容器构建过程中,我尝试使用apt-get install安装一些软件包。但是,该过程无法完成,因为找不到4个软件包中的3个。
Step 1 : RUN apt-get update && apt-get install -y netcat ca-certificates build-essential libssl-dev
---> Running in 38d22d97ec4a
Err http://http.debian.net jessie InRelease
Err http://http.debian.net jessie-updates InRelease
Err http://security.debian.org jessie/updates InRelease
Err http://http.debian.net jessie Release.gpg
Could not resolve 'http.debian.net'
Err http://security.debian.org jessie/updates Release.gpg
Could not resolve 'security.debian.org'
Err http://http.debian.net jessie-updates Release.gpg
Could not resolve 'http.debian.net'
Reading package lists...
W: Failed to fetch http://http.debian.net/debian/dists/jessie/InRelease
W: Failed to fetch http://http.debian.net/debian/dists/jessie-updates/InRelease
W: Failed to fetch http://security.debian.org/dists/jessie/updates/InRelease
W: Failed to fetch http://http.debian.net/debian/dists/jessie/Release.gpg Could not resolve 'http.debian.net'
W: Failed to fetch http://http.debian.net/debian/dists/jessie-updates/Release.gpg Could not resolve 'http.debian.net'
W: Failed to fetch http://security.debian.org/dists/jessie/updates/Release.gpg Could not resolve 'security.debian.org'
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 netcat
E: Unable to locate package build-essential
E: Unable to locate package libssl-dev
Removing intermediate container 38d22d97ec4a
2015/08/10 12:03:07 The command [/bin/sh -c apt-get update && apt-get install -y netcat ca-certificates build-essential libssl-dev] returned a non-zero code: 100
起初,我以为这是我的基本映像的问题,但是在其他VM上构建容器没有问题。有什么想法吗?
此问题与主机的网络配置有关。eth0接口配置错误。以下命令帮助我确定这是DNS问题。
$ docker run --rm debian:jessie ping -c 5 google.com
ping: unknown host
$ docker run --rm debian:jessie ping -c 5 8.8.8.8
PING 8.8.8.8 (8.8.8.8): 56 data bytes
64 bytes from 8.8.8.8: icmp_seq=0 ttl=38 time=37.147 ms
64 bytes from 8.8.8.8: icmp_seq=1 ttl=38 time=32.917 ms
64 bytes from 8.8.8.8: icmp_seq=2 ttl=38 time=31.475 ms
64 bytes from 8.8.8.8: icmp_seq=3 ttl=38 time=30.692 ms
64 bytes from 8.8.8.8: icmp_seq=4 ttl=38 time=31.180 ms
--- 8.8.8.8 ping statistics ---
5 packets transmitted, 5 packets received, 0% packet loss
round-trip min/avg/max/stddev = 30.692/32.682/37.147/2.352 ms
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我来说两句