Adding GPG key inside docker container causes "no valid OpenPGP data found"

ubuntu docker openpgp
Matěj Koubík picture Matěj Koubík · Jan 3, 2014 · Viewed 28k times · Source

I'm trying to install New Relic's system monitoring inside a docker container, but the apt-key add - fails with no valid OpenPGP data found.

There is the full Dockerfile:

FROM ubuntu
MAINTAINER Matej Koubik

RUN echo deb http://apt.newrelic.com/debian/ newrelic non-free >> /etc/apt/sources.list.d/newrelic.list
RUN wget -O- https://download.newrelic.com/548C16BF.gpg | apt-key add -
RUN apt-get update
RUN apt-get install newrelic-sysmond
RUN nrsysmond-config --set license_key=...
RUN /etc/init.d/newrelic-sysmond start

Answer

johncosta picture johncosta · Feb 20, 2014

The solution provided by @xdays works around the problem, but also works around the protection that ssl is providing. You could install the ca-certificates package before issuing your wget statement and it should work with ssl.

Add the following line before your call to wget:

RUN apt-get install -y ca-certificates wget

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