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120 lines
4.6 KiB
120 lines
4.6 KiB
package command
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import (
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"context"
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"fmt"
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"github.com/seaweedfs/seaweedfs/weed/glog"
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"github.com/seaweedfs/seaweedfs/weed/pb"
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"github.com/seaweedfs/seaweedfs/weed/pb/filer_pb"
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"github.com/seaweedfs/seaweedfs/weed/pb/remote_pb"
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"github.com/seaweedfs/seaweedfs/weed/replication/source"
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"github.com/seaweedfs/seaweedfs/weed/security"
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"github.com/seaweedfs/seaweedfs/weed/util"
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"google.golang.org/grpc"
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"os"
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"time"
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)
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type RemoteGatewayOptions struct {
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filerAddress *string
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grpcDialOption grpc.DialOption
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readChunkFromFiler *bool
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timeAgo *time.Duration
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createBucketAt *string
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createBucketRandomSuffix *bool
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include *string
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exclude *string
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mappings *remote_pb.RemoteStorageMapping
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remoteConfs map[string]*remote_pb.RemoteConf
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bucketsDir string
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clientId int32
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clientEpoch int32
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}
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var _ = filer_pb.FilerClient(&RemoteGatewayOptions{})
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func (option *RemoteGatewayOptions) WithFilerClient(streamingMode bool, fn func(filer_pb.SeaweedFilerClient) error) error {
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return pb.WithFilerClient(streamingMode, pb.ServerAddress(*option.filerAddress), option.grpcDialOption, func(client filer_pb.SeaweedFilerClient) error {
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return fn(client)
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})
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}
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func (option *RemoteGatewayOptions) AdjustedUrl(location *filer_pb.Location) string {
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return location.Url
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}
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var (
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remoteGatewayOptions RemoteGatewayOptions
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)
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func init() {
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cmdFilerRemoteGateway.Run = runFilerRemoteGateway // break init cycle
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remoteGatewayOptions.filerAddress = cmdFilerRemoteGateway.Flag.String("filer", "localhost:8888", "filer of the SeaweedFS cluster")
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remoteGatewayOptions.createBucketAt = cmdFilerRemoteGateway.Flag.String("createBucketAt", "", "one remote storage name to create new buckets in")
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remoteGatewayOptions.createBucketRandomSuffix = cmdFilerRemoteGateway.Flag.Bool("createBucketWithRandomSuffix", true, "add randomized suffix to bucket name to avoid conflicts")
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remoteGatewayOptions.readChunkFromFiler = cmdFilerRemoteGateway.Flag.Bool("filerProxy", false, "read file chunks from filer instead of volume servers")
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remoteGatewayOptions.timeAgo = cmdFilerRemoteGateway.Flag.Duration("timeAgo", 0, "start time before now. \"300ms\", \"1.5h\" or \"2h45m\". Valid time units are \"ns\", \"us\" (or \"µs\"), \"ms\", \"s\", \"m\", \"h\"")
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remoteGatewayOptions.include = cmdFilerRemoteGateway.Flag.String("include", "", "pattens of new bucket names, e.g., s3*")
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remoteGatewayOptions.exclude = cmdFilerRemoteGateway.Flag.String("exclude", "", "pattens of new bucket names, e.g., local*")
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remoteGatewayOptions.clientId = util.RandomInt32()
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}
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var cmdFilerRemoteGateway = &Command{
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UsageLine: "filer.remote.gateway",
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Short: "resumable continuously write back bucket creation, deletion, and other local updates to remote object store",
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Long: `resumable continuously write back bucket creation, deletion, and other local updates to remote object store
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filer.remote.gateway listens on filer local buckets update events.
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If any bucket is created, deleted, or updated, it will mirror the changes to remote object store.
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weed filer.remote.sync -createBucketAt=cloud1
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`,
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}
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func runFilerRemoteGateway(cmd *Command, args []string) bool {
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util.LoadConfiguration("security", false)
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grpcDialOption := security.LoadClientTLS(util.GetViper(), "grpc.client")
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remoteGatewayOptions.grpcDialOption = grpcDialOption
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filerAddress := pb.ServerAddress(*remoteGatewayOptions.filerAddress)
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filerSource := &source.FilerSource{}
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filerSource.DoInitialize(
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filerAddress.ToHttpAddress(),
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filerAddress.ToGrpcAddress(),
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"/", // does not matter
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*remoteGatewayOptions.readChunkFromFiler,
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)
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remoteGatewayOptions.bucketsDir = "/buckets"
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// check buckets again
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remoteGatewayOptions.WithFilerClient(false, func(filerClient filer_pb.SeaweedFilerClient) error {
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resp, err := filerClient.GetFilerConfiguration(context.Background(), &filer_pb.GetFilerConfigurationRequest{})
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if err != nil {
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return err
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}
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remoteGatewayOptions.bucketsDir = resp.DirBuckets
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return nil
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})
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// read filer remote storage mount mappings
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if detectErr := remoteGatewayOptions.collectRemoteStorageConf(); detectErr != nil {
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fmt.Fprintf(os.Stderr, "read mount info: %v\n", detectErr)
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return true
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}
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// synchronize /buckets folder
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fmt.Printf("synchronize buckets in %s ...\n", remoteGatewayOptions.bucketsDir)
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util.RetryForever("filer.remote.sync buckets", func() error {
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return remoteGatewayOptions.followBucketUpdatesAndUploadToRemote(filerSource)
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}, func(err error) bool {
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if err != nil {
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glog.Errorf("synchronize %s: %v", remoteGatewayOptions.bucketsDir, err)
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}
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return true
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})
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return true
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}
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