HTTPS error resolution for Docker registry

Starting with the docker1.3.2 version, the default Docker registry uses HTTPS, and when you use Docker pull non-HTTPS Docker regsitry, the following error is reported:

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1. Error:invalid Registry Endpoint ... Get ... If This private registry supports only HTTP or HTTPS with a unknown CA certificate, please add '--insecure-re Gistry 192.168.1.103:5000 ' to the daemon' s arguments. In the case of HTTPS, if you have access to the Registry's CA certificate, no need for the flag; simply place the CA C Ertificate at/etc/docker/certs.d/192.168. 1.103:5000/ca.crt

Solution:

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1. Vi/usr/lib/systemd/system/docker.service

The content is modified as follows:

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2. [Unit]
4. Description=docker Application Container Engine
6. Documentation=http://docs.docker.com
8. After=network.target Docker.socket
10. Requires=docker.socket
14. [Service]
16. Type=notify
18. Environmentfile=-/etc/sysconfig/docker
20. Environmentfile=-/etc/sysconfig/docker-storage
22. execstart=/usr/bin/docker-d--insecure-registry 192.168. 1.103:5000-h FD://$OPTIONS $DOCKER _storage_options
24. limitnofile=1048576
26. limitnproc=1048576
30. [Install]
32. Wantedby=multi-user.target

HTTPS error resolution for Docker registry