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Update federation target to etcd/clientv3 (#6119)

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With CoreDNS now supporting etcdv3 as the DNS backend, we
can update our federation target to etcdv3. Users will now be
able to use etcdv3 server as the federation backbone.

Minio will update bucket data to etcdv3 and CoreDNS can pick
that data up and serve it as bucket style DNS path.
This commit is contained in:
Nitish Tiwari
2018-07-13 02:42:40 +05:30
committed by kannappanr
parent adf7340394
commit 2aa18cafc6
338 changed files with 72570 additions and 67988 deletions
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8
cmd/bucket-handlers.go
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@@ -30,8 +30,6 @@ import (
"strings"
"sync"
etcd "github.com/coreos/etcd/client"
"github.com/gorilla/mux"
"github.com/minio/minio-go/pkg/set"
@@ -64,7 +62,7 @@ func initFederatorBackend(objLayer ObjectLayer) {
g.Go(func() error {
r, gerr := globalDNSConfig.Get(b[index].Name)
if gerr != nil {
if etcd.IsKeyNotFound(gerr) || gerr == dns.ErrNoEntriesFound {
if gerr == dns.ErrNoEntriesFound {
return globalDNSConfig.Put(b[index].Name)
}
return gerr
@@ -211,7 +209,7 @@ func (api objectAPIHandlers) ListBucketsHandler(w http.ResponseWriter, r *http.R
var bucketsInfo []BucketInfo
if globalDNSConfig != nil {
dnsBuckets, err := globalDNSConfig.List()
if err != nil && !etcd.IsKeyNotFound(err) && err != dns.ErrNoEntriesFound {
if err != nil && err != dns.ErrNoEntriesFound {
writeErrorResponse(w, toAPIErrorCode(err), r.URL)
return
}
@@ -432,7 +430,7 @@ func (api objectAPIHandlers) PutBucketHandler(w http.ResponseWriter, r *http.Req
if globalDNSConfig != nil {
if _, err := globalDNSConfig.Get(bucket); err != nil {
if etcd.IsKeyNotFound(err) || err == dns.ErrNoEntriesFound {
if err == dns.ErrNoEntriesFound {
// Proceed to creating a bucket.
if err = objectAPI.MakeBucketWithLocation(ctx, bucket, location); err != nil {
writeErrorResponse(w, toAPIErrorCode(err), r.URL)