ERROR: Couldn't connect to Docker daemon at http+docker://localhost - is it running?

Question

My environment:

# cat /etc/redhat-release 
Red Hat Enterprise Linux Server release 7.6 (Maipo)
# uname -a
Linux X.Y.Z 3.10.0-957.12.1.el7.x86_64 #1 SMP Wed Mar 20 11:34:37 UTC 2019 x86_64 x86_64 x86_64 GNU/Linux
# rpm -qa | grep ^docker
docker-rhel-push-plugin-1.13.1-96.gitb2f74b2.el7.x86_64
docker-common-1.13.1-96.gitb2f74b2.el7.x86_64
docker-client-1.13.1-96.gitb2f74b2.el7.x86_64
docker-1.13.1-96.gitb2f74b2.el7.x86_64
#

My issue:

# docker-compose up -d
ERROR: Couldn't connect to Docker daemon at http+docker://localhost - is it running?

If it's at a non-standard location, specify the URL with the DOCKER_HOST environment variable.
# 
# echo $DOCKER_HOST
#

yet

# docker ps
CONTAINER ID        IMAGE               COMMAND             CREATED             STATUS              PORTS               NAMES
# 
# docker info | head
Containers: 0
 Running: 0
 Paused: 0
 Stopped: 0
Images: 1
Server Version: 1.13.1
Storage Driver: overlay2
 Backing Filesystem: xfs
 Supports d_type: true
 Native Overlay Diff: true
#

I'm using standard package (location) that being shipped by Red Hat, however even though docker client works without any issue, it won't work with docker-compose for whatever reason...

Please advise.

possibly SELinux related issue:

# docker-compose ps
ERROR: Couldn't connect to Docker daemon at http+docker://localhost - is it running?

If it's at a non-standard location, specify the URL with the DOCKER_HOST environment variable.
# getenforce 
Enforcing
# setenforce 0
# docker-compose ps
Name   Command   State   Ports
------------------------------
#

@MichaelHampton https://docs.docker.com/compose/install/#install-as-a-container — alexus, May 01 '19 at 16:39
Hm, I dunno if that even works at all with RHEL's docker, as it's forked and significantly modified. Please try docker-compose from EPEL. — Michael Hampton, May 01 '19 at 16:40
@MichaelHampton I have 2 similarly configured hosts (same OS), one works without issue and the other host used to work fine too, until recently applied updates. epel's version is just a lot behind latest. — alexus, May 01 '19 at 16:59
Strange, it shouldn't be that far behind, but I dunno if the other maintainer has been keeping up. You might poke him on bugzilla. — Michael Hampton, May 01 '19 at 17:02
Yes, I'm aware of exactly how far behind it is. I looked before I wrote that comment. Again, you'll have to yell at carlwgeorge about that. I don't know why he hasn't updated it. — Michael Hampton, May 01 '19 at 17:10
Now you seen to have an SELinux issue. You need to look at the audit log. — Michael Hampton, May 02 '19 at 00:30
@fuzzi yeah, don't use docker-compose container version, use OS version instead or disable selinux — alexus, Aug 15 '19 at 16:04

ERROR: Couldn't connect to Docker daemon at http+docker://localhost - is it running?

0 Answers0