I've been having two problems with the newest docker packages in the

sl-extras repository for Scientific Linux 7.  I'm not sure where to report

them so hopefully someone here will help.





The first problem appears to be one of packaging.  The systemd unit file

for docker-1.13.1-96.gitb2f74b2.sl7.x86_64 contains references to

`rhel-push-plugin.socket`, which is not present in any Scientific Linux

packages, as far as I can tell.  I have to remove all references to that

unit file in order to start docker.  The previous RPM

(1.13.1-94.gitb2f74b2.sl7) did not have this problem.





The second problem is that I cannot `docker exec` things in some (but not

all) of my containers.  For the ones that fail, I get the following error

message:



    rpc error: code = 2 desc = oci runtime error: exec failed: container_linux.go:235: starting container process caused "process_linux.go:110: decoding init error from pipe caused \"read parent: connection reset by peer\""



This looks to me a lot like bug #1655214 in the Red Hat Bugzilla:



  https://urldefense.proofpoint.com/v2/url?u=https-3A__bugzilla.redhat.com_show-5Fbug.cgi-3Fid-3D1655214&d=DwIBAg&c=gRgGjJ3BkIsb5y6s49QqsA&r=gd8BzeSQcySVxr0gDWSEbN-P-pgDXkdyCtaMqdCgPPdW1cyL5RIpaIYrCn8C5x2A&m=cUDmEKgsvyvfXqxPWpSYuUAAT0eU2MkIq2JcEGVEAUY&s=td7JS4nXUFG8wQzmEEoEIlnKTwj8InHnoIurYBnXeX4&e= 



Unfortunately, that bug was closed with Red Hat's 1.13.1-88git07f3374.el7

docker RPM, whereas I'm seeing problems with Scientific Linux's

1.13.1-96.gitb2f74b2.sl7 and 1.13.1-94.gitb2f74b2.sl7 docker RPMs.



Is it possible I'm doing something wrong, or is this a bug that should be

reported?  If it's a bug, where should I report it (and my other problem)?

I haven't found anything for Scientific Linux like Red Hat's Bugzilla

instance.



Just in case it's relevant, I have four different images I've tested

things with.  All of them are from the Docker Hub registry.



 * mariadb:10 has problems.  It's ultimately based on ubuntu:bionic.



 * mediawiki:1.31 has problems.  It's ultimately based on

   debian:stretch-slim.



 * centos/httpd-24-centos7 does not have problems.  It's ultimately based

   on centos:7.



 * dperson/samba:latest has problems.  It's ultimately based on

   alpine:latest.



`docker exec` works properly on all of them when I'm using the

docker-1.13.1-91.git07f3374.sl7 RPM from the sl-extras repository.  The

problems consistently appear, both in my images and in the base images,

with any later RPMs.



-- 

Phil Gold

JHU CS IT Support (Linux)