Files
s3/weed/pb/server_discovery.go
zooqueen dd74d3e6d6 Replace AGPL MinIO fork with Apache-2.0 SeaweedFS fork; rebrand CLI weed->s3
hanzoai/s3 was an AGPL-3.0 MinIO fork whose network-copyleft blocks embedding
and reselling as a managed service. Replace it wholesale with a fork of
SeaweedFS (github.com/seaweedfs/seaweedfs, Apache-2.0, Go) which ships a
built-in S3 gateway + Filer.

- License: AGPL-3.0 -> Apache-2.0 (upstream LICENSE kept verbatim, incl.
  "Copyright 2025 Chris Lu"); NOTICE added crediting SeaweedFS. No AGPL/BUSL/
  SSPL/GPL or enterprise ("ee") files remain.
- Module: go.mod path set to github.com/hanzoai/s3 with a self-replace
  (replace github.com/seaweedfs/seaweedfs => ./) so the ~1800 internal Go files
  keep their upstream import paths with zero churn. Internal identifiers and
  import paths are intentionally NOT renamed.
- CLI rebrand: the binary is built as `s3` (was `weed`); root usage, per-command
  help/usage/flag strings, shell autocomplete program name, and the product name
  in CLI output now read "Hanzo S3" / `s3`. Users never see `weed`.
  (e.g. `s3 server`, `s3 filer`, `s3 master`, `s3 volume`, `s3 s3`, `s3 mount`.)
- Build: `make` (or `go build -o s3 ./weed`) builds the `s3` binary green;
  `cmd/weed-db` and `cmd/weed-sql` also build; `go vet ./weed/command/` clean.
- README/LLM.md rewritten for Hanzo S3; AGENTS.md/CLAUDE.md symlinks preserved.
- Dropped a 33MB prebuilt Mach-O `stress` binary upstream had committed; `.gitignore`
  updated to ignore the `s3` build output.
2026-06-18 23:41:25 -07:00

64 lines
1.7 KiB
Go

package pb
import (
"reflect"
"github.com/seaweedfs/seaweedfs/weed/glog"
)
// ServerDiscovery encodes a way to find at least 1 instance of a service,
// and provides utility functions to refresh the instance list
type ServerDiscovery struct {
list []ServerAddress
srvRecord *ServerSrvAddress
}
func NewServiceDiscoveryFromMap(m map[string]ServerAddress) (sd *ServerDiscovery) {
sd = &ServerDiscovery{}
for _, s := range m {
sd.list = append(sd.list, s)
}
return sd
}
// RefreshBySrvIfAvailable performs a DNS SRV lookup and updates list with the results
// of the lookup
func (sd *ServerDiscovery) RefreshBySrvIfAvailable() {
if sd.srvRecord == nil {
return
}
newList, err := sd.srvRecord.LookUp()
if err != nil {
glog.V(0).Infof("failed to lookup SRV for %s: %v", *sd.srvRecord, err)
}
if newList == nil || len(newList) == 0 {
glog.V(0).Infof("looked up SRV for %s, but found no well-formed names", *sd.srvRecord)
return
}
if !reflect.DeepEqual(sd.list, newList) {
sd.list = newList
}
}
// GetInstances returns a copy of the latest known list of addresses
// call RefreshBySrvIfAvailable prior to this in order to get a more up-to-date view
func (sd *ServerDiscovery) GetInstances() (addresses []ServerAddress) {
for _, a := range sd.list {
addresses = append(addresses, a)
}
return addresses
}
func (sd *ServerDiscovery) GetInstancesAsStrings() (addresses []string) {
for _, i := range sd.list {
addresses = append(addresses, string(i))
}
return addresses
}
func (sd *ServerDiscovery) GetInstancesAsMap() (addresses map[string]ServerAddress) {
addresses = make(map[string]ServerAddress)
for _, i := range sd.list {
addresses[string(i)] = i
}
return addresses
}