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mc/cmd/replicate-export.go
2020-08-07 08:15:27 -07:00

109 lines
3.3 KiB
Go

/*
* MinIO Client (C) 2020 MinIO, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package cmd
import (
"context"
"github.com/fatih/color"
"github.com/minio/cli"
json "github.com/minio/mc/pkg/colorjson"
"github.com/minio/mc/pkg/probe"
"github.com/minio/minio-go/v7/pkg/replication"
"github.com/minio/minio/pkg/console"
)
var replicateExportCmd = cli.Command{
Name: "export",
Usage: "export server side replication configuration",
Action: mainReplicateExport,
Before: setGlobalsFromContext,
Flags: globalFlags,
CustomHelpTemplate: `NAME:
{{.HelpName}} - {{.Usage}}
USAGE:
{{.HelpName}} TARGET
FLAGS:
{{range .VisibleFlags}}{{.}}
{{end}}
EXAMPLES:
1. Print replication configuration on bucket "mybucket" for alias "myminio" to STDOUT.
{{.Prompt}} {{.HelpName}} myminio/mybucket
2. Export replication configuration on bucket "mybucket" for alias "myminio" to '/data/replicate/config'.
{{.Prompt}} {{.HelpName}} myminio/mybucket > /data/replicate/config
`,
}
// checkReplicateExportSyntax - validate all the passed arguments
func checkReplicateExportSyntax(ctx *cli.Context) {
if len(ctx.Args()) != 1 {
cli.ShowCommandHelpAndExit(ctx, "export", 1) // last argument is exit code
}
}
type replicateExportMessage struct {
Op string `json:"op"`
Status string `json:"status"`
URL string `json:"url"`
ReplicationConfig replication.Config `json:"config"`
}
func (r replicateExportMessage) JSON() string {
r.Status = "success"
jsonMessageBytes, e := json.MarshalIndent(r, "", " ")
fatalIf(probe.NewError(e), "Unable to marshal into JSON.")
return string(jsonMessageBytes)
}
func (r replicateExportMessage) String() string {
if r.ReplicationConfig.Empty() {
return console.Colorize("ReplicateNMessage", "No replication configuration found for "+r.URL+".")
}
msgBytes, e := json.MarshalIndent(r.ReplicationConfig, "", " ")
fatalIf(probe.NewError(e), "Unable to marshal replication configuration")
return string(msgBytes)
}
func mainReplicateExport(cliCtx *cli.Context) error {
ctx, cancelReplicateExport := context.WithCancel(globalContext)
defer cancelReplicateExport()
console.SetColor("replicateExportMessage", color.New(color.FgGreen))
console.SetColor("replicateExportFailure", color.New(color.FgRed))
checkReplicateExportSyntax(cliCtx)
// Get the alias parameter from cli
args := cliCtx.Args()
aliasedURL := args.Get(0)
// Create a new Client
client, err := newClient(aliasedURL)
fatalIf(err, "Unable to initialize connection.")
rCfg, err := client.GetReplication(ctx)
fatalIf(err.Trace(args...), "Unable to get replication configuration")
printMsg(replicateExportMessage{
Op: "export",
Status: "success",
URL: aliasedURL,
ReplicationConfig: rCfg,
})
return nil
}