func cliUpdateService(ctx *cli.Context) {
feL3n4Addr := parseServiceKey(ctx.String("frontend"))
backends := []types.L3n4Addr{}
fe := types.L3n4AddrID{
ID: types.ServiceID(ctx.Int("id")),
L3n4Addr: *feL3n4Addr,
}
backendList := ctx.StringSlice("backend")
if len(backendList) == 0 {
fmt.Printf("Reading backend list from stdin...\n")
scanner := bufio.NewScanner(os.Stdin)
for scanner.Scan() {
backendList = append(backendList, scanner.Text())
}
}
for _, backend := range backendList {
beAddr, err := net.ResolveTCPAddr("tcp", backend)
if err != nil {
fmt.Fprintf(os.Stderr, "%s\n", err)
os.Exit(1)
}
be, err := types.NewL3n4Addr(types.TCP, beAddr.IP, uint16(beAddr.Port))
if err != nil {
fmt.Fprintf(os.Stderr, "Unable to create a new L3n4Addr for backend %s: %s\n", backend, err)
os.Exit(1)
}
if !be.IsIPv6() && fe.IsIPv6() {
fmt.Fprintf(os.Stderr, "Address mismatch between frontend and backend %s\n",
backend)
os.Exit(1)
}
if fe.Port == 0 && beAddr.Port != 0 {
fmt.Fprintf(os.Stderr, "L4 backend found (%v) with L3 frontend\n", beAddr)
os.Exit(1)
}
backends = append(backends, *be)
}
if err := client.SVCAdd(fe, backends, addRev); err != nil {
fmt.Fprintf(os.Stderr, "Unable to add the service: %s\n", err)
os.Exit(1)
}
fmt.Printf("Added %d backends\n", len(backends))
}
