问题
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
回答1:
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
回答2:
it seems that the problem is wget, add --no-check-certificate to your wget, and everything is ok.
# wget --no-check-certificate -O- https://download.newrelic.com/548C16BF.gpg | apt-key add - --2014-01-12 09:29:30-- https://download.newrelic.com/548C16BF.gpg Resolving download.newrelic.com (download.newrelic.com)... 50.31.164.159 Connecting to download.newrelic.com (download.newrelic.com)|50.31.164.159|:443... connected. WARNING: cannot verify download.newrelic.com's certificate, issued by `/C=US/O=GeoTrust, Inc./CN=GeoTrust SSL CA': Unable to locally verify the issuer's authority. HTTP request sent, awaiting response... 200 OK Length: 1682 (1.6K) [application/octet-stream] Saving to: `STDOUT' 100%[=================================================================================================================================================>] 1,682 --.-K/s in 0s 2014-01-12 09:29:31 (15.1 MB/s) - written to stdout [1682/1682] OK
回答3:
You can run wget -O- https://download.newrelic.com/548C16BF.gpg | apt-key add - seperately with wget -O- https://download.newrelic.com/548C16BF.gpg and apt-key add -. You can refer here.
And this is same for curl.
回答4:
I ran into this issue when i was installing docker.
run
sudo apt install apt-transport-https ca-certificates curl software-properties-common
You can refer here.
And then
curl -fsSL https://download.docker.com/linux/ubuntu/gpg | sudo apt-key add -
来源：https://stackoverflow.com/questions/20909111/adding-gpg-key-inside-docker-container-causes-no-valid-openpgp-data-found