Imports github.com/coredns/coredns/core/dnsserver github.com/coredns/coredns/request github.com/mholt/acmez github.com/mholt/acmez/acme github.com/miekg/dns Standard library imports context crypto/ecdsa crypto/elliptic crypto/rand crypto/tls crypto/x509 encoding/json encoding/pem errors fmt io/fs net net/http os path path/filepath runtime strings sync time