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Description of problem:
Since docker switches to use atomic-registry, the docker unit file assume that /etc/containers/registries.conf is a shell environment file that can be parsed directly to the docker daemon.
# cat /usr/lib/systemd/system/docker.service
...
+EnvironmentFile=-/run/containers/registries.conf
...
ExecStart=/usr/bin/dockerd-current \
--add-runtime docker-runc=/usr/libexec/docker/docker-runc-current \
--default-runtime=docker-runc \
--authorization-plugin=rhel-push-plugin \
--exec-opt native.cgroupdriver=systemd \
--userland-proxy-path=/usr/libexec/docker/docker-proxy-current \
$OPTIONS \
$DOCKER_STORAGE_OPTIONS \
$DOCKER_NETWORK_OPTIONS \
$ADD_REGISTRY \
$BLOCK_REGISTRY \
$INSECURE_REGISTRY\
$REGISTRIES
but in fact, it is in yaml format and need to be parsed by registries command first before pass to the docker daemon.
# /usr/libexec/registries
--insecure-registry brew-pulp-docker01.web.prod.ext.phx2.redhat.com:8888
Version-Release number of selected component (if applicable):
How reproducible:
Steps to Reproduce:
1.
2.
3.
Actual results:
Expected results:
Additional info:
I think something is wrong or a wrong assumption is being made here. The file /etc/containers/registries.conf is in YAML format. But the atomic-registries service file creates a text file /run/containers/registries.conf (which is not YAML). Therefore, that file can be loaded by systemd as an export. Perhaps you can show the error you were getting? or perhaps you were editing /run/containers/registries.conf and not /etc/containers/registries.conf ?
Change this line in docker.service.
+EnvironmentFile=-/run/containers/registries.conf
to
EnvironmentFile=-/run/containers/registries.conf
Fixed the problem. No idea why plus sign is needed.
Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.
For information on the advisory, and where to find the updated
files, follow the link below.
If the solution does not work for you, open a new bug report.
https://access.redhat.com/errata/RHBA-2017:2344
Description of problem: Since docker switches to use atomic-registry, the docker unit file assume that /etc/containers/registries.conf is a shell environment file that can be parsed directly to the docker daemon. # cat /usr/lib/systemd/system/docker.service ... +EnvironmentFile=-/run/containers/registries.conf ... ExecStart=/usr/bin/dockerd-current \ --add-runtime docker-runc=/usr/libexec/docker/docker-runc-current \ --default-runtime=docker-runc \ --authorization-plugin=rhel-push-plugin \ --exec-opt native.cgroupdriver=systemd \ --userland-proxy-path=/usr/libexec/docker/docker-proxy-current \ $OPTIONS \ $DOCKER_STORAGE_OPTIONS \ $DOCKER_NETWORK_OPTIONS \ $ADD_REGISTRY \ $BLOCK_REGISTRY \ $INSECURE_REGISTRY\ $REGISTRIES but in fact, it is in yaml format and need to be parsed by registries command first before pass to the docker daemon. # /usr/libexec/registries --insecure-registry brew-pulp-docker01.web.prod.ext.phx2.redhat.com:8888 Version-Release number of selected component (if applicable): How reproducible: Steps to Reproduce: 1. 2. 3. Actual results: Expected results: Additional info: