isle/go/cmd/entrypoint/network.go

114 lines
2.6 KiB
Go

package main
import (
"errors"
"fmt"
"isle/admin"
"isle/bootstrap"
"isle/daemon"
"os"
)
var subCmdNetworkCreate = subCmd{
name: "create",
descr: "Create's a new network, with this host being the first host in that network. The resulting admin.json is output to stdout.",
do: func(subCmdCtx subCmdCtx) error {
var (
ctx = subCmdCtx.ctx
flags = subCmdCtx.flagSet(false)
req daemon.CreateNetworkRequest
)
flags.StringVarP(
&req.Name, "name", "n", "",
"Human-readable name to identify the network as.",
)
flags.StringVarP(
&req.Domain, "domain", "d", "",
"Domain name that should be used as the root domain in the network.",
)
ipNetF := flags.VarPF(
textUnmarshalerFlag{&req.IPNet}, "ip-net", "i",
`An IP subnet, in CIDR form, which will be the overall range of`+
` possible IPs in the network. The first IP in this network`+
` range will become this first host's IP.`,
)
hostNameF := flags.VarPF(
textUnmarshalerFlag{&req.HostName},
"hostname", "h",
"Name of this host, which will be the first host in the network",
)
if err := flags.Parse(subCmdCtx.args); err != nil {
return fmt.Errorf("parsing flags: %w", err)
}
if req.Name == "" ||
req.Domain == "" ||
!ipNetF.Changed ||
!hostNameF.Changed {
return errors.New("--name, --domain, --ip-net, and --hostname are required")
}
var adm admin.Admin
err := subCmdCtx.daemonRCPClient.Call(ctx, &adm, "CreateNetwork", req)
if err != nil {
return fmt.Errorf("creating network: %w", err)
}
if err := adm.WriteTo(os.Stdout); err != nil {
return fmt.Errorf("writing admin.json to stdout")
}
return nil
},
}
var subCmdNetworkJoin = subCmd{
name: "join",
descr: "Joins this host to an existing network",
do: func(subCmdCtx subCmdCtx) error {
var (
ctx = subCmdCtx.ctx
flags = subCmdCtx.flagSet(false)
)
bootstrapPath := flags.StringP(
"bootstrap-path", "b", "", "Path to a bootstrap.json file.",
)
if err := flags.Parse(subCmdCtx.args); err != nil {
return fmt.Errorf("parsing flags: %w", err)
}
if *bootstrapPath == "" {
return errors.New("--bootstrap-path is required")
}
newBootstrap, err := bootstrap.FromFile(*bootstrapPath)
if err != nil {
return fmt.Errorf(
"loading bootstrap from %q: %w", *bootstrapPath, err,
)
}
return subCmdCtx.daemonRCPClient.Call(
ctx, nil, "JoinNetwork", newBootstrap,
)
},
}
var subCmdNetwork = subCmd{
name: "network",
descr: "Sub-commands related to network membership",
do: func(subCmdCtx subCmdCtx) error {
return subCmdCtx.doSubCmd(
subCmdNetworkCreate,
subCmdNetworkJoin,
)
},
}