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admin-config-export.go
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admin-config-export.go
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// Copyright (c) 2015-2021 MinIO, Inc.
//
// This file is part of MinIO Object Storage stack
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU Affero General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU Affero General Public License for more details.
//
// You should have received a copy of the GNU Affero General Public License
// along with this program. If not, see <http://www.gnu.org/licenses/>.
package cmd
import (
"bufio"
"bytes"
"fmt"
"io"
"strings"
"github.com/fatih/color"
"github.com/minio/cli"
json "github.com/minio/colorjson"
"github.com/minio/mc/pkg/probe"
"github.com/minio/pkg/console"
)
var adminConfigExportCmd = cli.Command{
Name: "export",
Usage: "export all config keys to STDOUT",
Before: setGlobalsFromContext,
Action: mainAdminConfigExport,
OnUsageError: onUsageError,
Flags: globalFlags,
CustomHelpTemplate: `NAME:
{{.HelpName}} - {{.Usage}}
USAGE:
{{.HelpName}} TARGET
FLAGS:
{{range .VisibleFlags}}{{.}}
{{end}}
EXAMPLES:
The output includes environment variables set on the server. These cannot be overridden from the client.
1. Export the current config from MinIO server
{{.Prompt}} {{.HelpName}} play/ > config.txt
`,
}
// configExportMessage container to hold locks information.
type configExportMessage struct {
Status string `json:"status"`
Value []byte `json:"value"`
}
// String colorized service status message.
func (u configExportMessage) String() string {
console.SetColor("EnvVar", color.New(color.FgYellow))
bio := bufio.NewReader(bytes.NewReader(u.Value))
var lines []string
for {
s, err := bio.ReadString('\n')
// Make lines displaying environment variables bold.
if strings.HasPrefix(s, "# MINIO_") {
s = strings.TrimPrefix(s, "# ")
parts := strings.SplitN(s, "=", 2)
s = fmt.Sprintf("# %s=%s", console.Colorize("EnvVar", parts[0]), parts[1])
lines = append(lines, s)
} else {
lines = append(lines, s)
}
if err == io.EOF {
break
}
fatalIf(probe.NewError(err), "Unable to marshal to string.")
}
return strings.Join(lines, "")
}
// JSON jsonified service status Message message.
func (u configExportMessage) JSON() string {
u.Status = "success"
statusJSONBytes, e := json.MarshalIndent(u, "", " ")
fatalIf(probe.NewError(e), "Unable to marshal into JSON.")
return string(statusJSONBytes)
}
// checkAdminConfigExportSyntax - validate all the passed arguments
func checkAdminConfigExportSyntax(ctx *cli.Context) {
if !ctx.Args().Present() || len(ctx.Args()) > 1 {
cli.ShowCommandHelpAndExit(ctx, "export", 1) // last argument is exit code
}
}
func mainAdminConfigExport(ctx *cli.Context) error {
checkAdminConfigExportSyntax(ctx)
// Export the alias parameter from cli
args := ctx.Args()
aliasedURL := args.Get(0)
// Create a new MinIO Admin Client
client, err := newAdminClient(aliasedURL)
fatalIf(err, "Unable to initialize admin connection.")
// Call get config API
buf, e := client.GetConfig(globalContext)
fatalIf(probe.NewError(e), "Unable to get server config")
// Print
printMsg(configExportMessage{
Value: buf,
})
return nil
}