Image builds failing with 'Error: GPG check FAILED' about docker-centos8-ansible HOT 8 CLOSED

Strange, locally it builds fine. This seems to be something strange with Travis CI's build environment :/

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It seems like something gets messed up with the GPG signing key after yum -y update && yum clean all, so for now I'm going to drop that from this image build and see if that fixes the build.

from docker-centos8-ansible.

Well that's weird... now it's failing to even get repo metadata for AppStream:

Step 6/12 : RUN yum makecache --timer  && yum -y install epel-release initscripts  && yum -y update  && yum -y install       sudo       which       hostname       python3       python3-pip  && yum clean all
 ---> Running in 23db156e206d
Failed determining last makecache time.
CentOS-8 - AppStream                             25 kB/s | 5.4 MB     03:39    
Failed to download metadata for repo 'AppStream'
Error: Failed to download metadata for repo 'AppStream'

See failed build: https://travis-ci.com/github/geerlingguy/docker-centos8-ansible/jobs/321378590#L218

from docker-centos8-ansible.

I'm going to leave this be for another week or so and see if it magically fixes itself. Might be a Travis CI environment issue, not sure.

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Related: geerlingguy/ansible-role-kubernetes#67

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Today, it's building fine locally again. Going to re-run in Travis and see what's up there.

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The above change (merging the two installs, dropping the extra yum update) seems to have fixed this!

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Not sure if this is related but seems like the docker build is now busted... see issue #7

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