after pulling docker from dockerhub f22ccc0b8772: Retrying in 1 second 3cf8fb62ba5f: Retrying in 1 second e80c964ece6a: Retrying in 1 second tls: failed to verify certificate: x509: certificate signed by unknown authority
reinstall ca certificate
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The error means what it says; the host you connected to is signed by a certificate that isn't ultimately signed by something in your CA store. This _could_ be because your OS is out-of-date and is missing CA store updates. Or it could be because someone at your ISP is running a MITM attack against you and substituting a fake dockerhub server, hoping you'll just turn on insecure mode and trust an untrustworthy server to give you code to run. – Charles Duffy Aug 30 '23 at 22:41