Unable to login into private docker registry (v2.0) -

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i trying setup private docker registry using standard docker registry image , docker registry reverse proxy (https://registry.hub.docker.com/u/marvambass/nginx-registry-proxy/)

the goal secure registry using ssl (using self-signed ssl cert) , username/password authentication. seems go well, when try navigate via browser private docker registry using : https://<private-docker-reg>:443/v2/ prompt provide username , password , correct output in case {}

but when try login using docker client seem unable login:

> docker login https://<private-docker-reg>:443  > username: foo > password: bar > email:  >  > fata[0005] error response daemon: v1 ping attempt failed > error: https://<private-docker-reg>:443/v1/_ping: x509: > certificate signed unknown authority. if private registry > supports http or https unknown ca certificate, please add > `--insecure-registry <private-docker-reg>:443` daemon's > arguments. in case of https, if have access registry's > ca certificate, no need flag; place ca certificate > @ /etc/docker/certs.d/<private-docker-reg>:443/ca.crt

in trying around issue modified /etc/default/docker file , added following line on docker client laptop:

docker_opts="$docker_opts --insecure-registry <private-docker-reg>:443"

restarted docker daemon, no luck far...

any hints or tips around issue??

in order use docker registry v2 need have @ least docker client version 1.6.0 or higher. run following command verify docker cli version:

docker info

as per docker registry documentation:

if docker client has version less 1.6, nginx route requests 1.0 registry. requests newer clients route 2.0 registry.

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