Make CoreDNS a server type plugin for Caddy (#220)

* Make CoreDNS a server type plugin for Caddy

Remove code we don't need and port all middleware over. Fix all tests
and rework the documentation.

Also make `go generate` build a caddy binary which we then copy into
our directory. This means `go build`-builds remain working as-is.

And new etc instances in each etcd test for better isolation.
Fix more tests and rework test.Server with the newer support Caddy offers.

Fix Makefile to support new mode of operation.

1 files changed, 0 insertions, 94 deletions

diff --git a/core/https/storage.go b/core/https/storage.go
deleted file mode 100644
index 5d8e949da..000000000
--- a/core/https/storage.go
+++ /dev/null
@@ -1,94 +0,0 @@
-package https
-
-import (
-	"path/filepath"
-	"strings"
-
-	"github.com/miekg/coredns/core/assets"
-)
-
-// storage is used to get file paths in a consistent,
-// cross-platform way for persisting Let's Encrypt assets
-// on the file system.
-var storage = Storage(filepath.Join(assets.Path(), "letsencrypt"))
-
-// Storage is a root directory and facilitates
-// forming file paths derived from it.
-type Storage string
-
-// Sites gets the directory that stores site certificate and keys.
-func (s Storage) Sites() string {
-	return filepath.Join(string(s), "sites")
-}
-
-// Site returns the path to the folder containing assets for domain.
-func (s Storage) Site(domain string) string {
-	return filepath.Join(s.Sites(), domain)
-}
-
-// SiteCertFile returns the path to the certificate file for domain.
-func (s Storage) SiteCertFile(domain string) string {
-	return filepath.Join(s.Site(domain), domain+".crt")
-}
-
-// SiteKeyFile returns the path to domain's private key file.
-func (s Storage) SiteKeyFile(domain string) string {
-	return filepath.Join(s.Site(domain), domain+".key")
-}
-
-// SiteMetaFile returns the path to the domain's asset metadata file.
-func (s Storage) SiteMetaFile(domain string) string {
-	return filepath.Join(s.Site(domain), domain+".json")
-}
-
-// Users gets the directory that stores account folders.
-func (s Storage) Users() string {
-	return filepath.Join(string(s), "users")
-}
-
-// User gets the account folder for the user with email.
-func (s Storage) User(email string) string {
-	if email == "" {
-		email = emptyEmail
-	}
-	return filepath.Join(s.Users(), email)
-}
-
-// UserRegFile gets the path to the registration file for
-// the user with the given email address.
-func (s Storage) UserRegFile(email string) string {
-	if email == "" {
-		email = emptyEmail
-	}
-	fileName := emailUsername(email)
-	if fileName == "" {
-		fileName = "registration"
-	}
-	return filepath.Join(s.User(email), fileName+".json")
-}
-
-// UserKeyFile gets the path to the private key file for
-// the user with the given email address.
-func (s Storage) UserKeyFile(email string) string {
-	if email == "" {
-		email = emptyEmail
-	}
-	fileName := emailUsername(email)
-	if fileName == "" {
-		fileName = "private"
-	}
-	return filepath.Join(s.User(email), fileName+".key")
-}
-
-// emailUsername returns the username portion of an
-// email address (part before '@') or the original
-// input if it can't find the "@" symbol.
-func emailUsername(email string) string {
-	at := strings.Index(email, "@")
-	if at == -1 {
-		return email
-	} else if at == 0 {
-		return email[1:]
-	}
-	return email[:at]
-}