To conclude, we saw the steps that our Support Techs follow to fix Docker Error x509 for our customers. This can be done with the following command: scp :/opt/registry/certs/domain.crt /etc/docker/certs.d/:/ca.crtįor example: mkdir -p /etc/docker/certs.d/:5555 scp :/opt/registry/certs/domain.crt /etc/docker/certs.d/:5555/ca.crtįinally, we can try to log in to the docker registry again. After that we can rename the docker registry certificate file to the following: /etc/docker/certs.d/:/ca.crt. Then copy the docker registry certificate file from our docker registry host to the cluster where we are running docker login.ģ. First, we must create the following directory on the server using the following command: mkdir -p /etc/docker/certs.d/:Ģ. We can make the docker trust the self-signed certificate by copying the self-signed certificate to /etc/docker/certs.d/:/ca.crt on the machine where we run the docker login command.ġ. This happens when we are using a self-signed certificate for the docker registry instead of the certificate issued by the trusted certificate authority (CA).įurthermore, the docker daemon does not trust the self-signed certificate which causes the x509 error. We may at times end up with the following error: Get : x509: certificate signed by unknown authority Cause: When we try to login into the Docker registry in the following way: docker login :5555 -u admin -p Passw0rd Today we will see how our Support Engineers fix this for our customers.īefore going into the steps for fixing this error we will see what causes this error.

Here at Bobcares, we often handle requests from our customers to fix similar errors as a part of our Server Management Services. Often our customers using Docker report to us that they get this error while trying to log into their docker registry. And if you refactor to stop using Machine you can consider removing VirtualBox from your environment setup and leverage the performance gains of xhyve – included with Desktop.Wondering how to fix Docker Error x509? We can help you. This downloads newer versions of Docker Desktop when an update becomes available. To allow Docker Desktop to automatically download new updates in the background, select Always download updates. To check for updates manually, select the Check for updates option in the Docker menu. This disables notifications in the Docker menu and also the notification badge that appears on the Docker Dashboard. Hat tip to Joe for his answer which cleanly filters the output from docker info. Turn off the check for updates by clearing the Automatically Check for Updates check box. $(.) is command substitution which executes the grep without outputting to stdout.-z returns true if the length of the string is 0 (from man bash).grep 'Docker Desktop' is what you should be looking for if you're running Docker Desktop.Consider refactoring your scripts to check for Docker Desktop instead: if [[ -n '$(docker info -format '' is a Go template which queries from docker info. After we did docker login, the credentials were saved to /.docker/config.json correctly. After we uncheck 'Securely store Docker logins in macOS keychain', the file is still there. Recent Docker for Mac installation instructions note Docker Toolbox but suggest it's legacy now. I think the problem is that with docker desktop version 2.2.0.4 and above, there is a file called /.docker/plaintext-passwords.json shipped with it. macOS Version: 11.1 (Build 20C69) on the 2020 M1 Mini Docker for Mac: The December 2020 release of Docker Desktop for Apple Silicon. These makefiles have used docker-machine in the past.

Docker for mac check for new version