Add Insecure Registry to Docker

Question

I have a docker 1 12 running on CentOS  I am trying to add insecure registry to it and things mentioned in documentation just don t work  The system uses systemd so I created a  etc systemd system docker service d 50-insecure-registry conf file     cat  etc systemd system docker service d 50-insecure-registry conf  Service  Environment  DOCKER OPTS --insecure-registry  hostname cloudapp net 5000     After loading daemon and restarting docker service  systemd shows that the environment variable is there     sudo systemctl show docker   grep Env Environment DOCKER OPTS --insecure-registry  hostname cloudapp net 5000    But when I run docker info I don t see that insecure registry added     docker info          Registry  https   index docker io v1  WARNING  bridge-nf-call-iptables is disabled WARNING  bridge-nf-call-ip6tables is disabled Insecure Registries      127 0 0 0 8   Pushing images to hostaneme cloudapp net fails with    Pushing application      hostname cloudapp net 5000 application latest     The push refers to a repository      hostname cloudapp net 5000 mozart application  ERROR  Get https   hostname cloudapp net 5000 v1  ping  http  server gave HTTP response to HTTPS client   Is there something that could be done   Am I missing something     UPDATE  Resolved the issue by adding a file  etc docker daemon json with following content         insecure-registries       hostname cloudapp net 5000        And then restart docker   sudo systemctl daemon-reload sudo systemctl restart docker   After that insecure registry hostname cloudapp net 500 works

User · Answer

Create  etc docker daemon json file where you want to pull docker images and add the following content to that file        quot insecure-registries quot       quot hostname cloudapp net 5000 quot       Refer to my blog article for an in-depth explanation of creating a private docker registry  https   geekdosage com how-to-create-a-private-docker-registry-in-ubuntu-20-04

User · Answer

For me the solution was to add the registry to here    etc sysconfig docker-registries  DOCKER REGISTRIES    DOCKER EXTRA REGISTRIES  --insecure-registry  b example com

User · Answer

I happened to encounter a similar kind of issue after setting up local internal JFrog Docker Private Registry on Amazon Linux  THE followings I did to solve the issue  Added  quot --insecure-registry xx xx xx xx 8081 quot  by modifying the OPTIONS variable in the  etc sysconfig docker file  OPTIONS  quot --default-ulimit nofile 1024 40961 --insecure-registry hostname 8081 quot   Then restarted the docker  I was then able to login to the local docker registry using  docker login -u admin -p password hostname 8081

User · Answer

Copying answer from question   To add an insecure docker registry  add the file  etc docker daemon json with the following content          insecure-registries       hostname cloudapp net 5000        and then restart docker

User · Answer

If you already have a config json file then the final file should look something like this    Here registry myprivate com is the one which was giving me problems              auths                      https   index docker io v1                               auth    xxxxxxxxxxxxxxxxxxxx                                        registry myprivate com                              auth    xxxxxxxxxxxxxxxxxxxx                                         HttpHeaders                      User-Agent    Docker-Client 19 03 8  linux                       insecure-registries      registry myprivate com

User · Answer

The solution with the  etc docker daemon json file didn t work for me on Ubuntu   I was able to configure Docker insecure registries on Ubuntu by providing command line options to the Docker daemon in  etc default docker file  e g       etc default docker     DOCKER OPTS  --insecure-registry a example com --insecure-registry b example com    The same way can be used to configure custom directory for docker images and volumes storage  default DNS servers  etc    Now  after the Docker daemon has restarted  after executing sudo service docker restart   running docker info will show   Insecure Registries    a example com   b example com   127 0 0 0 8

User · Answer

Anyone looking to add insecure registry on amazon linux 2  You will have to change the setting under  etc sysconfig docker and then restart docker daemon  here s how my  etc sysconfig docker looks like   The max number of open files for the daemon itself  and all   running containers   The default value of 1048576 mirrors the value   used by the systemd service unit  DAEMON MAXFILES 1048576    Additional startup options for the Docker daemon  for example    OPTIONS  quot --ip-forward true --iptables true quot    By default we limit the number of open files per container OPTIONS  quot --default-ulimit nofile 1024 4096 --insecure-registry yourinsecureregistryhostname port quot     How many seconds the sysvinit script waits for the pidfile to appear   when starting the daemon  DAEMON PIDFILE TIMEOUT 10

User · Answer

Creating  etc docker daemon json file and adding the below content and then doing a docker restart on CentOS 7 resolved the issue          insecure-registries       hostname cloudapp net 5000

[docker] Add Insecure Registry to Docker

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