It is fairly easy if you need to store filer metadata with other data store.

    Let's use "yourstore" as the chosen name.

    Here are the steps:

    • Add a package under github.com/chrislusf/seaweedfs/weed/filer2/yourstore
    • Implement the filer2.FilerStore interface
    1. package filer2
    3. import (
    4.     "errors"
    5. )
    7. type FilerStore interface {
    8.     // GetName gets the name to locate the configuration in filer.toml file
    9.     GetName() string
    10.     // Initialize initializes the file store
    11.     Initialize(configuration Configuration) error
    12.     InsertEntry(*Entry) error
    13.     UpdateEntry(*Entry) (err error)
    14.     FindEntry(FullPath) (entry *Entry, err error)
    15.     DeleteEntry(FullPath) (err error)
    16.     ListDirectoryEntries(dirPath FullPath, startFileName string, includeStartFile bool, limit int) ([]*Entry, error)
    17. }
    • Remember to add yourstore to the list of supported stores
    1. func init() {
    2.     filer2.Stores = append(filer2.Stores, &YourStore{})
    3. }
    • Load yourstore. Just import it in github.com/chrislusf/seaweedfs/weed/server/filer_server.go
    1. import (
    2.     "net/http"
    3.     "strconv"
    4.     "github.com/chrislusf/seaweedfs/weed/filer2"
    5.     _ "github.com/chrislusf/seaweedfs/weed/filer2/cassandra"
    6.     _ "github.com/chrislusf/seaweedfs/weed/filer2/leveldb"
    7.     _ "github.com/chrislusf/seaweedfs/weed/filer2/mysql"
    8.     _ "github.com/chrislusf/seaweedfs/weed/filer2/postgres"
    9.     _ "github.com/chrislusf/seaweedfs/weed/filer2/redis"
    10.     _ "github.com/chrislusf/seaweedfs/weed/filer2/yourstore"
    11.         // ^^ add here
    12.     "github.com/chrislusf/seaweedfs/weed/security"
    13.     "github.com/chrislusf/seaweedfs/weed/glog"
    14. )
    • Send a pull request!