filer: add path-specific option to enforce readonly

8 files changed, 171 insertions, 115 deletions

diff --git a/other/java/client/src/main/proto/filer.proto b/other/java/client/src/main/proto/filer.proto
index ac4c9a0e7..cdbba7eb1 100644
--- a/other/java/client/src/main/proto/filer.proto
+++ b/other/java/client/src/main/proto/filer.proto
@@ -361,6 +361,7 @@ message FilerConf {
         string disk_type = 5;
         bool fsync = 6;
         uint32 volume_growth_count = 7;
+        bool read_only = 8;
     }
     repeated PathConf locations = 2;
 }
diff --git a/weed/filer/filer_conf.go b/weed/filer/filer_conf.go
index ab5afc5cc..da02c5b20 100644
--- a/weed/filer/filer_conf.go
+++ b/weed/filer/filer_conf.go
@@ -126,6 +126,9 @@ func mergePathConf(a, b *filer_pb.FilerConf_PathConf) {
 	if b.VolumeGrowthCount > 0 {
 		a.VolumeGrowthCount = b.VolumeGrowthCount
 	}
+	if b.ReadOnly {
+		a.ReadOnly = b.ReadOnly
+	}
 }
 
 func (fc *FilerConf) ToProto() *filer_pb.FilerConf {
diff --git a/weed/filer/filer_conf_test.go b/weed/filer/filer_conf_test.go
index ff868a3ec..1576c7d82 100644
--- a/weed/filer/filer_conf_test.go
+++ b/weed/filer/filer_conf_test.go
@@ -24,6 +24,18 @@ func TestFilerConf(t *testing.T) {
 			LocationPrefix: "/buckets/",
 			Replication:    "001",
 		},
+		{
+			LocationPrefix: "/buckets",
+			ReadOnly:       false,
+		},
+		{
+			LocationPrefix: "/buckets/xxx",
+			ReadOnly:       true,
+		},
+		{
+			LocationPrefix: "/buckets/xxx/yyy",
+			ReadOnly:       false,
+		},
 	}}
 	fc.doLoadConf(conf)
 
@@ -31,4 +43,7 @@ func TestFilerConf(t *testing.T) {
 	assert.Equal(t, "abcd", fc.MatchStorageRule("/buckets/abcd/jasdf").Collection)
 	assert.Equal(t, "001", fc.MatchStorageRule("/buckets/abc/jasdf").Replication)
 
+	assert.Equal(t, true, fc.MatchStorageRule("/buckets/xxx/yyy/zzz").ReadOnly)
+	assert.Equal(t, false, fc.MatchStorageRule("/buckets/other").ReadOnly)
+
 }
diff --git a/weed/pb/filer.proto b/weed/pb/filer.proto
index ac4c9a0e7..cdbba7eb1 100644
--- a/weed/pb/filer.proto
+++ b/weed/pb/filer.proto
@@ -361,6 +361,7 @@ message FilerConf {
         string disk_type = 5;
         bool fsync = 6;
         uint32 volume_growth_count = 7;
+        bool read_only = 8;
     }
     repeated PathConf locations = 2;
 }
diff --git a/weed/pb/filer_pb/filer.pb.go b/weed/pb/filer_pb/filer.pb.go
index 902c39514..89fc448f4 100644
--- a/weed/pb/filer_pb/filer.pb.go
+++ b/weed/pb/filer_pb/filer.pb.go
@@ -3135,6 +3135,7 @@ type FilerConf_PathConf struct {
 	DiskType          string `protobuf:"bytes,5,opt,name=disk_type,json=diskType,proto3" json:"disk_type,omitempty"`
 	Fsync             bool   `protobuf:"varint,6,opt,name=fsync,proto3" json:"fsync,omitempty"`
 	VolumeGrowthCount uint32 `protobuf:"varint,7,opt,name=volume_growth_count,json=volumeGrowthCount,proto3" json:"volume_growth_count,omitempty"`
+	ReadOnly          bool   `protobuf:"varint,8,opt,name=read_only,json=readOnly,proto3" json:"read_only,omitempty"`
 }
 
 func (x *FilerConf_PathConf) Reset() {
@@ -3218,6 +3219,13 @@ func (x *FilerConf_PathConf) GetVolumeGrowthCount() uint32 {
 	return 0
 }
 
+func (x *FilerConf_PathConf) GetReadOnly() bool {
+	if x != nil {
+		return x.ReadOnly
+	}
+	return false
+}
+
 var File_filer_proto protoreflect.FileDescriptor
 
 var file_filer_proto_rawDesc = []byte{
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-	0x72, 0x50, 0x72, 0x6f, 0x74, 0x6f, 0x5a, 0x2f, 0x67, 0x69, 0x74, 0x68, 0x75, 0x62, 0x2e, 0x63,
-	0x6f, 0x6d, 0x2f, 0x63, 0x68, 0x72, 0x69, 0x73, 0x6c, 0x75, 0x73, 0x66, 0x2f, 0x73, 0x65, 0x61,
-	0x77, 0x65, 0x65, 0x64, 0x66, 0x73, 0x2f, 0x77, 0x65, 0x65, 0x64, 0x2f, 0x70, 0x62, 0x2f, 0x66,
-	0x69, 0x6c, 0x65, 0x72, 0x5f, 0x70, 0x62, 0x62, 0x06, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x33,
+	0x74, 0x61, 0x52, 0x65, 0x71, 0x75, 0x65, 0x73, 0x74, 0x1a, 0x23, 0x2e, 0x66, 0x69, 0x6c, 0x65,
+	0x72, 0x5f, 0x70, 0x62, 0x2e, 0x53, 0x75, 0x62, 0x73, 0x63, 0x72, 0x69, 0x62, 0x65, 0x4d, 0x65,
+	0x74, 0x61, 0x64, 0x61, 0x74, 0x61, 0x52, 0x65, 0x73, 0x70, 0x6f, 0x6e, 0x73, 0x65, 0x22, 0x00,
+	0x30, 0x01, 0x12, 0x56, 0x0a, 0x0d, 0x4b, 0x65, 0x65, 0x70, 0x43, 0x6f, 0x6e, 0x6e, 0x65, 0x63,
+	0x74, 0x65, 0x64, 0x12, 0x1e, 0x2e, 0x66, 0x69, 0x6c, 0x65, 0x72, 0x5f, 0x70, 0x62, 0x2e, 0x4b,
+	0x65, 0x65, 0x70, 0x43, 0x6f, 0x6e, 0x6e, 0x65, 0x63, 0x74, 0x65, 0x64, 0x52, 0x65, 0x71, 0x75,
+	0x65, 0x73, 0x74, 0x1a, 0x1f, 0x2e, 0x66, 0x69, 0x6c, 0x65, 0x72, 0x5f, 0x70, 0x62, 0x2e, 0x4b,
+	0x65, 0x65, 0x70, 0x43, 0x6f, 0x6e, 0x6e, 0x65, 0x63, 0x74, 0x65, 0x64, 0x52, 0x65, 0x73, 0x70,
+	0x6f, 0x6e, 0x73, 0x65, 0x22, 0x00, 0x28, 0x01, 0x30, 0x01, 0x12, 0x4f, 0x0a, 0x0c, 0x4c, 0x6f,
+	0x63, 0x61, 0x74, 0x65, 0x42, 0x72, 0x6f, 0x6b, 0x65, 0x72, 0x12, 0x1d, 0x2e, 0x66, 0x69, 0x6c,
+	0x65, 0x72, 0x5f, 0x70, 0x62, 0x2e, 0x4c, 0x6f, 0x63, 0x61, 0x74, 0x65, 0x42, 0x72, 0x6f, 0x6b,
+	0x65, 0x72, 0x52, 0x65, 0x71, 0x75, 0x65, 0x73, 0x74, 0x1a, 0x1e, 0x2e, 0x66, 0x69, 0x6c, 0x65,
+	0x72, 0x5f, 0x70, 0x62, 0x2e, 0x4c, 0x6f, 0x63, 0x61, 0x74, 0x65, 0x42, 0x72, 0x6f, 0x6b, 0x65,
+	0x72, 0x52, 0x65, 0x73, 0x70, 0x6f, 0x6e, 0x73, 0x65, 0x22, 0x00, 0x12, 0x3a, 0x0a, 0x05, 0x4b,
+	0x76, 0x47, 0x65, 0x74, 0x12, 0x16, 0x2e, 0x66, 0x69, 0x6c, 0x65, 0x72, 0x5f, 0x70, 0x62, 0x2e,
+	0x4b, 0x76, 0x47, 0x65, 0x74, 0x52, 0x65, 0x71, 0x75, 0x65, 0x73, 0x74, 0x1a, 0x17, 0x2e, 0x66,
+	0x69, 0x6c, 0x65, 0x72, 0x5f, 0x70, 0x62, 0x2e, 0x4b, 0x76, 0x47, 0x65, 0x74, 0x52, 0x65, 0x73,
+	0x70, 0x6f, 0x6e, 0x73, 0x65, 0x22, 0x00, 0x12, 0x3a, 0x0a, 0x05, 0x4b, 0x76, 0x50, 0x75, 0x74,
+	0x12, 0x16, 0x2e, 0x66, 0x69, 0x6c, 0x65, 0x72, 0x5f, 0x70, 0x62, 0x2e, 0x4b, 0x76, 0x50, 0x75,
+	0x74, 0x52, 0x65, 0x71, 0x75, 0x65, 0x73, 0x74, 0x1a, 0x17, 0x2e, 0x66, 0x69, 0x6c, 0x65, 0x72,
+	0x5f, 0x70, 0x62, 0x2e, 0x4b, 0x76, 0x50, 0x75, 0x74, 0x52, 0x65, 0x73, 0x70, 0x6f, 0x6e, 0x73,
+	0x65, 0x22, 0x00, 0x42, 0x4f, 0x0a, 0x10, 0x73, 0x65, 0x61, 0x77, 0x65, 0x65, 0x64, 0x66, 0x73,
+	0x2e, 0x63, 0x6c, 0x69, 0x65, 0x6e, 0x74, 0x42, 0x0a, 0x46, 0x69, 0x6c, 0x65, 0x72, 0x50, 0x72,
+	0x6f, 0x74, 0x6f, 0x5a, 0x2f, 0x67, 0x69, 0x74, 0x68, 0x75, 0x62, 0x2e, 0x63, 0x6f, 0x6d, 0x2f,
+	0x63, 0x68, 0x72, 0x69, 0x73, 0x6c, 0x75, 0x73, 0x66, 0x2f, 0x73, 0x65, 0x61, 0x77, 0x65, 0x65,
+	0x64, 0x66, 0x73, 0x2f, 0x77, 0x65, 0x65, 0x64, 0x2f, 0x70, 0x62, 0x2f, 0x66, 0x69, 0x6c, 0x65,
+	0x72, 0x5f, 0x70, 0x62, 0x62, 0x06, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x33,
 }
 
 var (
diff --git a/weed/server/filer_grpc_server.go b/weed/server/filer_grpc_server.go
index 3821de6a9..70f993962 100644
--- a/weed/server/filer_grpc_server.go
+++ b/weed/server/filer_grpc_server.go
@@ -259,14 +259,14 @@ func (fs *FilerServer) cleanupChunks(fullpath string, existingEntry *filer.Entry
 	garbage = append(garbage, coveredChunks...)
 
 	if newEntry.Attributes != nil {
-		so := fs.detectStorageOption(fullpath,
+		so, _ := fs.detectStorageOption(fullpath,
 			newEntry.Attributes.Collection,
 			newEntry.Attributes.Replication,
 			newEntry.Attributes.TtlSec,
 			newEntry.Attributes.DiskType,
 			"",
 			"",
-		)
+		) // ignore readonly error for capacity needed to manifestize
 		chunks, err = filer.MaybeManifestize(fs.saveAsChunk(so), chunks)
 		if err != nil {
 			// not good, but should be ok
@@ -307,7 +307,11 @@ func (fs *FilerServer) AppendToEntry(ctx context.Context, req *filer_pb.AppendTo
 	}
 
 	entry.Chunks = append(entry.Chunks, req.Chunks...)
-	so := fs.detectStorageOption(string(fullpath), entry.Collection, entry.Replication, entry.TtlSec, entry.DiskType, "", "")
+	so, err := fs.detectStorageOption(string(fullpath), entry.Collection, entry.Replication, entry.TtlSec, entry.DiskType, "", "")
+	if err != nil {
+		glog.Warningf("detectStorageOption: %v", err)
+		return &filer_pb.AppendToEntryResponse{}, err
+	}
 	entry.Chunks, err = filer.MaybeManifestize(fs.saveAsChunk(so), entry.Chunks)
 	if err != nil {
 		// not good, but should be ok
@@ -333,7 +337,11 @@ func (fs *FilerServer) DeleteEntry(ctx context.Context, req *filer_pb.DeleteEntr
 
 func (fs *FilerServer) AssignVolume(ctx context.Context, req *filer_pb.AssignVolumeRequest) (resp *filer_pb.AssignVolumeResponse, err error) {
 
-	so := fs.detectStorageOption(req.Path, req.Collection, req.Replication, req.TtlSec, req.DiskType, req.DataCenter, req.Rack)
+	so, err := fs.detectStorageOption(req.Path, req.Collection, req.Replication, req.TtlSec, req.DiskType, req.DataCenter, req.Rack)
+	if err != nil {
+		glog.V(3).Infof("AssignVolume: %v", err)
+		return &filer_pb.AssignVolumeResponse{Error: fmt.Sprintf("assign volume: %v", err)}, nil
+	}
 
 	assignRequest, altRequest := so.ToAssignRequests(int(req.Count))
 
diff --git a/weed/server/filer_server_handlers_write.go b/weed/server/filer_server_handlers_write.go
index 95eba9d3d..0567143fe 100644
--- a/weed/server/filer_server_handlers_write.go
+++ b/weed/server/filer_server_handlers_write.go
@@ -2,6 +2,7 @@ package weed_server
 
 import (
 	"context"
+	"errors"
 	"net/http"
 	"os"
 	"strings"
@@ -19,6 +20,8 @@ import (
 var (
 	OS_UID = uint32(os.Getuid())
 	OS_GID = uint32(os.Getgid())
+
+	ErrReadOnly = errors.New("read only")
 )
 
 type FilerPostResult struct {
@@ -57,7 +60,7 @@ func (fs *FilerServer) PostHandler(w http.ResponseWriter, r *http.Request, conte
 	ctx := context.Background()
 
 	query := r.URL.Query()
-	so := fs.detectStorageOption0(r.RequestURI,
+	so, err := fs.detectStorageOption0(r.RequestURI,
 		query.Get("collection"),
 		query.Get("replication"),
 		query.Get("ttl"),
@@ -65,6 +68,15 @@ func (fs *FilerServer) PostHandler(w http.ResponseWriter, r *http.Request, conte
 		query.Get("dataCenter"),
 		query.Get("rack"),
 	)
+	if err != nil {
+		if err == ErrReadOnly {
+			w.WriteHeader(http.StatusInsufficientStorage)
+		} else {
+			glog.V(1).Infoln("post", r.RequestURI, ":", err.Error())
+			w.WriteHeader(http.StatusInternalServerError)
+		}
+		return
+	}
 
 	fs.autoChunk(ctx, w, r, contentLength, so)
 	util.CloseRequest(r)
@@ -105,7 +117,7 @@ func (fs *FilerServer) DeleteHandler(w http.ResponseWriter, r *http.Request) {
 	w.WriteHeader(http.StatusNoContent)
 }
 
-func (fs *FilerServer) detectStorageOption(requestURI, qCollection, qReplication string, ttlSeconds int32, diskType string, dataCenter, rack string) *operation.StorageOption {
+func (fs *FilerServer) detectStorageOption(requestURI, qCollection, qReplication string, ttlSeconds int32, diskType, dataCenter, rack string) (*operation.StorageOption, error) {
 	collection := util.Nvl(qCollection, fs.option.Collection)
 	replication := util.Nvl(qReplication, fs.option.DefaultReplication)
 
@@ -121,6 +133,10 @@ func (fs *FilerServer) detectStorageOption(requestURI, qCollection, qReplication
 
 	rule := fs.filer.FilerConf.MatchStorageRule(requestURI)
 
+	if rule.ReadOnly {
+		return nil, ErrReadOnly
+	}
+
 	if ttlSeconds == 0 {
 		ttl, err := needle.ReadTTL(rule.GetTtl())
 		if err != nil {
@@ -138,10 +154,10 @@ func (fs *FilerServer) detectStorageOption(requestURI, qCollection, qReplication
 		DiskType:          util.Nvl(diskType, rule.DiskType),
 		Fsync:             fsync || rule.Fsync,
 		VolumeGrowthCount: rule.VolumeGrowthCount,
-	}
+	}, nil
 }
 
-func (fs *FilerServer) detectStorageOption0(requestURI, qCollection, qReplication string, qTtl string, diskType string, dataCenter, rack string) *operation.StorageOption {
+func (fs *FilerServer) detectStorageOption0(requestURI, qCollection, qReplication string, qTtl string, diskType string, dataCenter, rack string) (*operation.StorageOption, error) {
 
 	ttl, err := needle.ReadTTL(qTtl)
 	if err != nil {
diff --git a/weed/shell/command_fs_configure.go b/weed/shell/command_fs_configure.go
index 02cd7ac69..52fcae1c6 100644
--- a/weed/shell/command_fs_configure.go
+++ b/weed/shell/command_fs_configure.go
@@ -54,6 +54,7 @@ func (c *commandFsConfigure) Do(args []string, commandEnv *CommandEnv, writer io
 	ttl := fsConfigureCommand.String("ttl", "", "assign writes with this ttl")
 	diskType := fsConfigureCommand.String("disk", "", "[hdd|ssd|<tag>] hard drive or solid state drive or any tag")
 	fsync := fsConfigureCommand.Bool("fsync", false, "fsync for the writes")
+	isReadOnly := fsConfigureCommand.Bool("readOnly", false, "disable writes")
 	volumeGrowthCount := fsConfigureCommand.Int("volumeGrowthCount", 0, "the number of physical volumes to add if no writable volumes")
 	isDelete := fsConfigureCommand.Bool("delete", false, "delete the configuration by locationPrefix")
 	apply := fsConfigureCommand.Bool("apply", false, "update and apply filer configuration")
@@ -84,6 +85,7 @@ func (c *commandFsConfigure) Do(args []string, commandEnv *CommandEnv, writer io
 			Fsync:             *fsync,
 			DiskType:          *diskType,
 			VolumeGrowthCount: uint32(*volumeGrowthCount),
+			ReadOnly:          *isReadOnly,
 		}
 
 		// check collection