Docker buildx certificate signed by unknown authority. I can successfully reference the server as a docker repository, but I want to access it over https using the ADD instruction. . Oct 30, 2021 · Was still getting x509: certificate signed by unknown authority on other machines trying to pull push image directly (without buildx) to the registry, but that was due to certificate not being recognized event after commands below. Aug 26, 2025 · This service is interfering with the internet communication, which causes the certificate to be signed by an authority (the firewall service) that is unknown to docker. The “x509 Certificate Signed by Unknown Authority” error is a common roadblock in communication, but it can be overcome easily. io and therefore cannot be verified. Jun 12, 2020 · Using buildx to create a multi arch image using the docker-container driver fails with "509: certificate signed by unknown authority" when pushing to a self-signed registry. Sep 1, 2023 · Since docker site cert was signed by Zscaler, your computer will check the matching root cert of zscaler. The certificate is signed by our own CA. Since your computer now has the file, it will validate the cert (that was signed by Zscaler) is legit and proceed without any errors. May 23, 2023 · Using docker buildx I am trying to download an artifact from an internal artifactory server over https. Jul 7, 2022 · When building a Docker image based on an image in a private repo using a TLS certificate signed with a self-signed CA, everything works fine if that CA is already in the macOS Keychain or in the Windows Trusted Certificate Store – as long as you build using docker build. By understanding the error, its causes, and the solutions outlined in this guide, you’re well-equipped to tackle it head-on. atgqu jovcs vonywmd coolx scjyly fbgkj dvyql qtvdc oqtcg zowk