I kept running into the following error, when trying to docker pull a docker image from our private repo.
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docker pull some.ip/db:20151004073001 Error response from daemon: unable to ping registry endpoint https://some.ip/v0/ v2 ping attempt failed with error: Get https://some.ip/v2/: tls: failed to parse certificate from server: x509: negative serial number v1 ping attempt failed with error: Get https://some.ip/v1/_ping: tls: failed to parse certificate from server: x509: negative serial number |
Googling the error was not very helpful, and it took me a while to find a solution, even though it is very simple. You just have to let docker know that it’s ok to trust that repo:
sudo vim /etc/default/docker- Add the following line:
DOCKER_OPTS="$DOCKER_OPTS --insecure-registry your.registery.ip.or.url" - Restart docker via:
sudo service docker restart
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