You can not select more than 25 topics Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
 
 
 
 
 
 
minio/pkg/madmin
Harshavardhana ae002aa724 Deprecate updating admin credentials using API calls (#7570) 6 years ago
..
examples Deprecate updating admin credentials using API calls (#7570) 6 years ago
README.md Deprecate updating admin credentials using API calls (#7570) 6 years ago
api-error-response.go Replace Minio refs in docs with MinIO and links (#7494) 6 years ago
api.go Replace Minio refs in docs with MinIO and links (#7494) 6 years ago
api_test.go Replace Minio refs in docs with MinIO and links (#7494) 6 years ago
config-commands.go Replace Minio refs in docs with MinIO and links (#7494) 6 years ago
encrypt.go Replace Minio refs in docs with MinIO and links (#7494) 6 years ago
heal-commands.go Replace Minio refs in docs with MinIO and links (#7494) 6 years ago
heal-commands_test.go Replace Minio refs in docs with MinIO and links (#7494) 6 years ago
info-commands.go Replace Minio refs in docs with MinIO and links (#7494) 6 years ago
policy-commands.go Replace Minio refs in docs with MinIO and links (#7494) 6 years ago
profiling-commands.go Replace Minio refs in docs with MinIO and links (#7494) 6 years ago
service-commands.go Replace Minio refs in docs with MinIO and links (#7494) 6 years ago
top-commands.go Replace Minio refs in docs with MinIO and links (#7494) 6 years ago
user-commands.go Replace Minio refs in docs with MinIO and links (#7494) 6 years ago
utils.go Replace Minio refs in docs with MinIO and links (#7494) 6 years ago
version-commands.go Replace Minio refs in docs with MinIO and links (#7494) 6 years ago

README.md

Golang Admin Client API Reference Slack

The MinIO Admin Golang Client SDK provides APIs to manage MinIO services.

This quickstart guide will show you how to install the MinIO Admin client SDK, connect to MinIO admin service, and provide a walkthrough of a simple file uploader.

This document assumes that you have a working Golang setup.

Initialize MinIO Admin Client object.

MinIO


package main

import (
    "fmt"

    "github.com/minio/minio/pkg/madmin"
)

func main() {
    // Use a secure connection.
    ssl := true

    // Initialize minio client object.
    mdmClnt, err := madmin.New("your-minio.example.com:9000", "YOUR-ACCESSKEYID", "YOUR-SECRETKEY", ssl)
    if err != nil {
        fmt.Println(err)
        return
    }

    // Fetch service status.
    st, err := mdmClnt.ServiceStatus()
    if err != nil {
        fmt.Println(err)
        return
    }
    fmt.Printf("%#v\n", st)
}

Service operations Info operations Healing operations Config operations Top operations IAM operations Misc
ServiceStatus ServerInfo Heal GetConfig TopLocks AddUser
ServiceSendAction ServerCPULoadInfo SetConfig SetUserPolicy StartProfiling
ServerMemUsageInfo GetConfigKeys ListUsers DownloadProfilingData
SetConfigKeys AddCannedPolicy

1. Constructor

New(endpoint string, accessKeyID string, secretAccessKey string, ssl bool) (*AdminClient, error)

Initializes a new admin client object.

Parameters

Param Type Description
endpoint string MinIO endpoint.
accessKeyID string Access key for the object storage endpoint.
secretAccessKey string Secret key for the object storage endpoint.
ssl bool Set this value to 'true' to enable secure (HTTPS) access.

2. Admin API Version

VersionInfo() (AdminAPIVersionInfo, error)

Fetch server's supported Administrative API version.

Example


	info, err := madmClnt.VersionInfo()
	if err != nil {
		log.Fatalln(err)
	}
	log.Printf("%s\n", info.Version)

3. Service operations

ServiceStatus() (ServiceStatusMetadata, error)

Fetch service status, replies disk space used, backend type and total disks offline/online (applicable in distributed mode).

Param Type Description
serviceStatus ServiceStatusMetadata Represents current server status info in following format:
Param Type Description
st.ServerVersion.Version string Server version.
st.ServerVersion.CommitID string Server commit id.
st.Uptime time.Duration Server uptime duration in seconds.

Example


   st, err := madmClnt.ServiceStatus()
   if err != nil {
   	log.Fatalln(err)
   }
   log.Printf("%#v\n", st)

ServiceSendAction(act ServiceActionValue) (error)

Sends a service action command to service - possible actions are restarting and stopping the server.

Example

       // to restart
   st, err := madmClnt.ServiceSendAction(ServiceActionValueRestart)
       // or to stop
       // st, err := madmClnt.ServiceSendAction(ServiceActionValueStop)
   if err != nil {
   	log.Fatalln(err)
   }
   log.Printf("Success")

4. Info operations

ServerInfo() ([]ServerInfo, error)

Fetches information for all cluster nodes, such as server properties, storage information, network statistics, etc.

Param Type Description
si.Addr string Address of the server the following information is retrieved from.
si.ConnStats ServerConnStats Connection statistics from the given server.
si.HTTPStats ServerHTTPStats HTTP connection statistics from the given server.
si.Properties ServerProperties Server properties such as region, notification targets.
si.Data.StorageInfo.Used int64 Used disk space.
si.Data.StorageInfo.Total int64 Total disk space.
si.Data.StorageInfo.Available int64 Available disk space.
si.Data.StorageInfo.Backend struct{} Represents backend type embedded structure.
Param Type Description
ServerProperties.Uptime time.Duration Total duration in seconds since server is running.
ServerProperties.Version string Current server version.
ServerProperties.CommitID string Current server commitID.
ServerProperties.Region string Configured server region.
ServerProperties.SQSARN []string List of notification target ARNs.
Param Type Description
ServerConnStats.TotalInputBytes uint64 Total bytes received by the server.
ServerConnStats.TotalOutputBytes uint64 Total bytes sent by the server.
Param Type Description
ServerHTTPStats.TotalHEADStats ServerHTTPMethodStats Total statistics regarding HEAD operations
ServerHTTPStats.SuccessHEADStats ServerHTTPMethodStats Total statistics regarding successful HEAD operations
ServerHTTPStats.TotalGETStats ServerHTTPMethodStats Total statistics regarding GET operations
ServerHTTPStats.SuccessGETStats ServerHTTPMethodStats Total statistics regarding successful GET operations
ServerHTTPStats.TotalPUTStats ServerHTTPMethodStats Total statistics regarding PUT operations
ServerHTTPStats.SuccessPUTStats ServerHTTPMethodStats Total statistics regarding successful PUT operations
ServerHTTPStats.TotalPOSTStats ServerHTTPMethodStats Total statistics regarding POST operations
ServerHTTPStats.SuccessPOSTStats ServerHTTPMethodStats Total statistics regarding successful POST operations
ServerHTTPStats.TotalDELETEStats ServerHTTPMethodStats Total statistics regarding DELETE operations
ServerHTTPStats.SuccessDELETEStats ServerHTTPMethodStats Total statistics regarding successful DELETE operations
Param Type Description
ServerHTTPMethodStats.Count uint64 Total number of operations.
ServerHTTPMethodStats.AvgDuration string Average duration of Count number of operations.
Param Type Description
Backend.Type BackendType Type of backend used by the server currently only FS or Erasure.
Backend.OnlineDisks int Total number of disks online (only applies to Erasure backend), is empty for FS.
Backend.OfflineDisks int Total number of disks offline (only applies to Erasure backend), is empty for FS.
Backend.StandardSCData int Data disks set for standard storage class, is empty for FS.
Backend.StandardSCParity int Parity disks set for standard storage class, is empty for FS.
Backend.RRSCData int Data disks set for reduced redundancy storage class, is empty for FS.
Backend.RRSCParity int Parity disks set for reduced redundancy storage class, is empty for FS.
Backend.Sets [][]DriveInfo Represents topology of drives in erasure coded sets.
Param Type Description
DriveInfo.UUID string Unique ID for each disk provisioned by server format.
DriveInfo.Endpoint string Endpoint location of the remote/local disk.
DriveInfo.State string Current state of the disk at endpoint.

Example


   serversInfo, err := madmClnt.ServerInfo()
   if err != nil {
   	log.Fatalln(err)
   }

   for _, peerInfo := range serversInfo {
   	log.Printf("Node: %s, Info: %v\n", peerInfo.Addr, peerInfo.Data)
   }

ServerDrivesPerfInfo() ([]ServerDrivesPerfInfo, error)

Fetches drive performance information for all cluster nodes. Returned value is in Bytes/s.

Param Type Description
di.Addr string Address of the server the following information is retrieved from.
di.Error string Errors (if any) encountered while reaching this node
di.DrivesPerf disk.Performance Path of the drive mount on above server and read, write speed.
Param Type Description
disk.Performance.Path string Path of drive mount.
disk.Performance.Error string Error (if any) encountered while accessing this drive.
disk.Performance.WriteSpeed float64 Write speed on above path in Bytes/s.
disk.Performance.ReadSpeed float64 Read speed on above path in Bytes/s.

ServerCPULoadInfo() ([]ServerCPULoadInfo, error)

Fetches CPU utilization for all cluster nodes. Returned value is in Bytes.

Param Type Description
cpui.Addr string Address of the server the following information is retrieved from.
cpui.Error string Errors (if any) encountered while reaching this node
cpui.CPULoad cpu.Load The load on the CPU.
Param Type Description
cpu.Load.Avg float64 The average utilization of the CPU measured in a 200ms interval
cpu.Load.Min float64 The minimum utilization of the CPU measured in a 200ms interval
cpu.Load.Max float64 The maximum utilization of the CPU measured in a 200ms interval
cpu.Load.Error string Error (if any) encountered while accesing the CPU info

ServerMemUsageInfo() ([]ServerMemUsageInfo, error)

Fetches Mem utilization for all cluster nodes. Returned value is in Bytes.

Param Type Description
memi.Addr string Address of the server the following information is retrieved from.
memi.Error string Errors (if any) encountered while reaching this node
memi.MemUsage mem.Usage The utilitzation of Memory
Param Type Description
mem.Usage.Mem uint64 The total number of bytes obtained from the OS
mem.Usage.Error string Error (if any) encountered while accesing the CPU info

6. Heal operations

Heal(bucket, prefix string, healOpts HealOpts, clientToken string, forceStart bool, forceStop bool) (start HealStartSuccess, status HealTaskStatus, err error)

Start a heal sequence that scans data under given (possible empty) bucket and prefix. The recursive bool turns on recursive traversal under the given path. dryRun does not mutate on-disk data, but performs data validation.

Two heal sequences on overlapping paths may not be initiated.

The progress of a heal should be followed using the same API Heal by providing the clientToken previously obtained from a Heal API. The server accumulates results of the heal traversal and waits for the client to receive and acknowledge them using the status request by providing clientToken.

Example


    opts := madmin.HealOpts{
            Recursive: true,
            DryRun:    false,
    }
    forceStart := false
    forceStop := false
    healPath, err := madmClnt.Heal("", "", opts, "", forceStart, forceStop)
    if err != nil {
        log.Fatalln(err)
    }
    log.Printf("Heal sequence started at %s", healPath)

HealStartSuccess structure

Param Type Description
s.ClientToken string A unique token for a successfully started heal operation, this token is used to request realtime progress of the heal operation.
s.ClientAddress string Address of the client which initiated the heal operation, the client address has the form "host:port".
s.StartTime time.Time Time when heal was initially started.

HealTaskStatus structure

Param Type Description
s.Summary string Short status of heal sequence
s.FailureDetail string Error message in case of heal sequence failure
s.HealSettings HealOpts Contains the booleans set in the HealStart call
s.Items []HealResultItem Heal records for actions performed by server

HealResultItem structure

Param Type Description
ResultIndex int64 Index of the heal-result record
Type HealItemType Represents kind of heal operation in the heal record
Bucket string Bucket name
Object string Object name
Detail string Details about heal operation
DiskInfo.AvailableOn []int List of disks on which the healed entity is present and healthy
DiskInfo.HealedOn []int List of disks on which the healed entity was restored

7. Config operations

GetConfig() ([]byte, error)

Get current config.json of a MinIO server.

Example

    configBytes, err := madmClnt.GetConfig()
    if err != nil {
        log.Fatalf("failed due to: %v", err)
    }

    // Pretty-print config received as json.
    var buf bytes.Buffer
    err = json.Indent(buf, configBytes, "", "\t")
    if err != nil {
        log.Fatalf("failed due to: %v", err)
    }

    log.Println("config received successfully: ", string(buf.Bytes()))

SetConfig(config io.Reader) error

Set a new config.json for a MinIO server.

Example

    config := bytes.NewReader([]byte(`config.json contents go here`))
    if err := madmClnt.SetConfig(config); err != nil {
        log.Fatalf("failed due to: %v", err)
    }
    log.Println("SetConfig was successful")

GetConfigKeys(keys []string) ([]byte, error)

Get a json document which contains a set of keys and their values from config.json.

Example

    configBytes, err := madmClnt.GetConfigKeys([]string{"version", "notify.amqp.1"})
    if err != nil {
        log.Fatalf("failed due to: %v", err)
    }

    // Pretty-print config received as json.
    var buf bytes.Buffer
    err = json.Indent(buf, configBytes, "", "\t")
    if err != nil {
        log.Fatalf("failed due to: %v", err)
    }

    log.Println("config received successfully: ", string(buf.Bytes()))

SetConfigKeys(params map[string]string) error

Set a set of keys and values for MinIO server or distributed setup and restart the MinIO server for the new configuration changes to take effect.

Example

    err := madmClnt.SetConfigKeys(map[string]string{"notify.webhook.1": "{\"enable\": true, \"endpoint\": \"http://example.com/api\"}"})
    if err != nil {
        log.Fatalf("failed due to: %v", err)
    }

    log.Println("New configuration successfully set")

8. Top operations

TopLocks() (LockEntries, error)

Get the oldest locks from MinIO server.

Example

    locks, err := madmClnt.TopLocks()
    if err != nil {
        log.Fatalf("failed due to: %v", err)
    }

    out, err := json.Marshal(locks)
    if err != nil {
        log.Fatalf("Marshal failed due to: %v", err)
    }

    log.Println("TopLocks received successfully: ", string(out))

9. IAM operations

AddCannedPolicy(policyName string, policy string) error

Create a new canned policy on MinIO server.

Example

	policy := `{"Version": "2012-10-17","Statement": [{"Action": ["s3:GetObject"],"Effect": "Allow","Resource": ["arn:aws:s3:::my-bucketname/*"],"Sid": ""}]}`

    if err = madmClnt.AddCannedPolicy("get-only", policy); err != nil {
		log.Fatalln(err)
	}

AddUser(user string, secret string) error

Add a new user on a MinIO server.

Example

	if err = madmClnt.AddUser("newuser", "newstrongpassword"); err != nil {
		log.Fatalln(err)
	}

SetUserPolicy(user string, policyName string) error

Enable a canned policy get-only for a given user on MinIO server.

Example

	if err = madmClnt.SetUserPolicy("newuser", "get-only"); err != nil {
		log.Fatalln(err)
	}

ListUsers() (map[string]UserInfo, error)

Lists all users on MinIO server.

Example

	users, err := madmClnt.ListUsers();
    if err != nil {
		log.Fatalln(err)
	}
    for k, v := range users {
        fmt.Printf("User %s Status %s\n", k, v.Status)
    }

10. Misc operations

StartProfiling(profiler string) error

Ask all nodes to start profiling using the specified profiler mode

Example

    startProfilingResults, err = madmClnt.StartProfiling("cpu")
    if err != nil {
            log.Fatalln(err)
    }
    for _, result := range startProfilingResults {
        if !result.Success {
            log.Printf("Unable to start profiling on node `%s`, reason = `%s`\n", result.NodeName, result.Error)
        } else {
            log.Printf("Profiling successfully started on node `%s`\n", result.NodeName)
        }
    }

DownloadProfilingData() ([]byte, error)

Download profiling data of all nodes in a zip format.

Example

    profilingData, err := madmClnt.DownloadProfilingData()
    if err != nil {
            log.Fatalln(err)
    }

    profilingFile, err := os.Create("/tmp/profiling-data.zip")
    if err != nil {
            log.Fatal(err)
    }

    if _, err := io.Copy(profilingFile, profilingData); err != nil {
            log.Fatal(err)
    }

    if err := profilingFile.Close(); err != nil {
            log.Fatal(err)
    }

    if err := profilingData.Close(); err != nil {
            log.Fatal(err)
    }

    log.Println("Profiling data successfully downloaded.")