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server.go
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server.go
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package minion
import (
"net"
"sort"
"time"
"github.com/NetSys/quilt/db"
"github.com/NetSys/quilt/minion/pb"
"golang.org/x/net/context"
"google.golang.org/grpc"
log "github.com/Sirupsen/logrus"
)
type server struct {
db.Conn
}
func minionServerRun(conn db.Conn) {
var sock net.Listener
server := server{conn}
for {
var err error
sock, err = net.Listen("tcp", ":9999")
if err != nil {
log.WithError(err).Error("Failed to open socket.")
} else {
break
}
time.Sleep(30 * time.Second)
}
s := grpc.NewServer()
pb.RegisterMinionServer(s, server)
s.Serve(sock)
}
func (s server) GetMinionConfig(cts context.Context,
_ *pb.Request) (*pb.MinionConfig, error) {
var cfg pb.MinionConfig
if m, err := s.MinionSelf(); err == nil {
cfg.Role = db.RoleToPB(m.Role)
cfg.PrivateIP = m.PrivateIP
cfg.Spec = m.Spec
cfg.Provider = m.Provider
cfg.Size = m.Size
cfg.Region = m.Region
} else {
cfg.Role = db.RoleToPB(db.None)
}
return &cfg, nil
}
func (s server) SetMinionConfig(ctx context.Context,
msg *pb.MinionConfig) (*pb.Reply, error) {
go s.Transact(func(view db.Database) error {
minion, err := view.MinionSelf()
if err != nil {
log.Info("Received initial configuation.")
minion = view.InsertMinion()
}
minion.Role = db.PBToRole(msg.Role)
minion.PrivateIP = msg.PrivateIP
minion.Spec = msg.Spec
minion.Provider = msg.Provider
minion.Size = msg.Size
minion.Region = msg.Region
minion.Self = true
view.Commit(minion)
return nil
})
return &pb.Reply{Success: true}, nil
}
func (s server) BootEtcd(ctx context.Context,
members *pb.EtcdMembers) (*pb.Reply, error) {
go s.Transact(func(view db.Database) error {
etcdSlice := view.SelectFromEtcd(nil)
var etcdRow db.Etcd
switch len(etcdSlice) {
case 0:
log.Info("Received boot etcd request.")
etcdRow = view.InsertEtcd()
case 1:
etcdRow = etcdSlice[0]
default:
panic("Not Reached")
}
etcdRow.EtcdIPs = members.IPs
sort.Strings(etcdRow.EtcdIPs)
view.Commit(etcdRow)
return nil
})
return &pb.Reply{Success: true}, nil
}