How to install ubuntu software inside this docker?

[tianon]

How to install ubuntu software inside this docker?

[ghanan]

Inside the container, apt-get does not connect and the commands host, nslookup, ping, telnet, ssh are not installed.
networkclt reports IP an gateway en eth0
¿How can I troubleshoot it?

RESOLVED: nameserver problem (you can see it executing cat /etc/resolv.conf)

[smiller171]

@yhjhoo if you were going to do it that way you would need a -y, but the better way would be to create a simple Dockerfile and use docker build .

FROM ubuntu:14.04
MAINTAINER yhjhoo
RUN apt-get install openjdk-jre -yq && apt-get clean

[lkwg82]

is that solved?

[OWSM]

@lkwg82 I'm pretty certain this is user error.

[tianon]

This is definitely user error -- to be able to apt-get install, you must apt-get update first to update list files:

FROM ubuntu:14.04
RUN apt-get update && apt-get install -y openjdk-jre

Additionally, any issues apt-get has with communicating externally are going to be host or Docker issues, not specific to this image. 👍