isle/go/cmd/entrypoint/garage.go

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package main
import (
"fmt"
"os"
"path/filepath"
"syscall"
)
var subCmdGarageMC = subCmd{
name: "mc",
descr: "Runs the mc (minio-client) binary. The isle garage can be accessed under the `garage` alias",
checkLock: true,
do: func(subCmdCtx subCmdCtx) error {
flags := subCmdCtx.flagSet(true)
keyID := flags.StringP(
"key-id", "i", "",
"Optional key ID to use, defaults to that of the shared global key",
)
keySecret := flags.StringP(
"key-secret", "s", "",
"Optional key secret to use, defaults to that of the shared global key",
)
if err := flags.Parse(subCmdCtx.args); err != nil {
return fmt.Errorf("parsing flags: %w", err)
}
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hostBootstrap, err := loadHostBootstrap()
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if err != nil {
return fmt.Errorf("loading host bootstrap: %w", err)
}
s3APIAddr := hostBootstrap.ChooseGaragePeer().S3APIAddr()
if *keyID == "" {
*keyID = hostBootstrap.Garage.GlobalBucketS3APICredentials.ID
}
if *keySecret == "" {
*keySecret = hostBootstrap.Garage.GlobalBucketS3APICredentials.Secret
}
args := flags.Args()
if i := flags.ArgsLenAtDash(); i >= 0 {
args = args[i:]
}
args = append([]string{binPath("mc")}, args...)
var (
mcHostVar = fmt.Sprintf(
"MC_HOST_garage=http://%s:%s@%s",
*keyID, *keySecret, s3APIAddr,
)
binPath = filepath.Join(envAppDirPath, "bin/mc")
cliEnv = append(
os.Environ(),
mcHostVar,
// The garage docs say this is necessary, though nothing bad
// seems to happen if we leave it out *shrug*
"MC_REGION=garage",
)
)
if err := syscall.Exec(binPath, args, cliEnv); err != nil {
return fmt.Errorf(
"calling exec(%q, %#v, %#v): %w",
binPath, args, cliEnv, err,
)
}
return nil
},
}
var subCmdGarageCLI = subCmd{
name: "cli",
descr: "Runs the garage binary, automatically configured to point to the garage sub-process of a running isle daemon",
checkLock: true,
do: func(subCmdCtx subCmdCtx) error {
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hostBootstrap, err := loadHostBootstrap()
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if err != nil {
return fmt.Errorf("loading host bootstrap: %w", err)
}
var (
binPath = binPath("garage")
args = append([]string{"garage"}, subCmdCtx.args...)
cliEnv = append(
os.Environ(),
"GARAGE_RPC_HOST="+hostBootstrap.ChooseGaragePeer().RPCPeerAddr(),
"GARAGE_RPC_SECRET="+hostBootstrap.Garage.RPCSecret,
)
)
if err := syscall.Exec(binPath, args, cliEnv); err != nil {
return fmt.Errorf(
"calling exec(%q, %#v, %#v): %w",
binPath, args, cliEnv, err,
)
}
return nil
},
}
var subCmdGarage = subCmd{
name: "garage",
descr: "Runs the garage binary, automatically configured to point to the garage sub-process of a running isle daemon",
do: func(subCmdCtx subCmdCtx) error {
return subCmdCtx.doSubCmd(
subCmdGarageCLI,
subCmdGarageMC,
)
},
}