Enhance config restore to carry previous set content as well (#8483)

This PR brings support for `history` list to
list in the following agreed format

```
~ mc admin config history list -n 2 myminio
RestoreId: df0ebb1e-69b0-4043-b9dd-ab54508f2897
Date: Mon, 04 Nov 2019 17:27:27 GMT

region name="us-east-1" state="on"
region name="us-east-1" state="on"
region name="us-east-1" state="on"
region name="us-east-1" state="on"

RestoreId: ecc6873a-0ed3-41f9-b03e-a2a1bab48b5f
Date: Mon, 04 Nov 2019 17:28:23 GMT

region name=us-east-1 state=off
```

This PR also moves the help templating and coloring to
fully `mc` side instead than `madmin` API.
This commit is contained in:
Harshavardhana
2019-11-05 06:18:26 -08:00
committed by kannappanr
parent 26ed9e81b1
commit 1e457dda7e
8 changed files with 88 additions and 73 deletions

View File

@@ -34,6 +34,8 @@ import (
const (
minioConfigPrefix = "config"
kvPrefix = ".kv"
// Captures all the previous SetKV operations and allows rollback.
minioConfigHistoryPrefix = minioConfigPrefix + "/history"
@@ -44,7 +46,9 @@ const (
minioConfigBackupFile = minioConfigFile + ".backup"
)
func listServerConfigHistory(ctx context.Context, objAPI ObjectLayer) ([]madmin.ConfigHistoryEntry, error) {
func listServerConfigHistory(ctx context.Context, objAPI ObjectLayer, withData bool, count int) (
[]madmin.ConfigHistoryEntry, error) {
var configHistory []madmin.ConfigHistoryEntry
// List all kvs
@@ -55,10 +59,28 @@ func listServerConfigHistory(ctx context.Context, objAPI ObjectLayer) ([]madmin.
return nil, err
}
for _, obj := range res.Objects {
configHistory = append(configHistory, madmin.ConfigHistoryEntry{
RestoreID: path.Base(obj.Name),
cfgEntry := madmin.ConfigHistoryEntry{
RestoreID: strings.TrimSuffix(path.Base(obj.Name), kvPrefix),
CreateTime: obj.ModTime, // ModTime is createTime for config history entries.
})
}
if withData {
data, err := readConfig(ctx, objAPI, obj.Name)
if err != nil {
return nil, err
}
if globalConfigEncrypted {
data, err = madmin.DecryptData(globalActiveCred.String(), bytes.NewReader(data))
if err != nil {
return nil, err
}
}
cfgEntry.Data = string(data)
}
configHistory = append(configHistory, cfgEntry)
count--
if count == 0 {
break
}
}
if !res.IsTruncated {
// We are done here
@@ -73,12 +95,12 @@ func listServerConfigHistory(ctx context.Context, objAPI ObjectLayer) ([]madmin.
}
func delServerConfigHistory(ctx context.Context, objAPI ObjectLayer, uuidKV string) error {
historyFile := pathJoin(minioConfigHistoryPrefix, uuidKV)
historyFile := pathJoin(minioConfigHistoryPrefix, uuidKV+kvPrefix)
return objAPI.DeleteObject(ctx, minioMetaBucket, historyFile)
}
func readServerConfigHistory(ctx context.Context, objAPI ObjectLayer, uuidKV string) ([]byte, error) {
historyFile := pathJoin(minioConfigHistoryPrefix, uuidKV)
historyFile := pathJoin(minioConfigHistoryPrefix, uuidKV+kvPrefix)
data, err := readConfig(ctx, objAPI, historyFile)
if err != nil {
return nil, err
@@ -92,7 +114,7 @@ func readServerConfigHistory(ctx context.Context, objAPI ObjectLayer, uuidKV str
}
func saveServerConfigHistory(ctx context.Context, objAPI ObjectLayer, kv []byte) error {
uuidKV := mustGetUUID() + ".kv"
uuidKV := mustGetUUID() + kvPrefix
historyFile := pathJoin(minioConfigHistoryPrefix, uuidKV)
var err error