Configuring Logging for a Bucket (SDK for Go)

Function

This API enables logging for a bucket (source) and configures another bucket (target) to store the log files. When a bucket is created, logging is not enabled by default. You can call this API to enable logging for the bucket. With logging enabled, a log message is generated for each operation on the bucket. Multiple log messages are packed into a file. The bucket for storing log files must be specified when logging is enabled. It can be the bucket logging is enabled for, or any other bucket you have access to. If you specify another bucket for storing logs, the bucket must be in the same region as the logged bucket. You can also configure access to log files and the name prefix of log files.

Restrictions

OBS creates log files and uploads them to the bucket. Before enabling logging for a bucket, you need to create an IAM agency to delegate OBS to upload log files to the specified bucket.
To configure logging for a bucket, you must be the bucket owner or have the required permission (obs:bucket:PutBucketLogging in IAM or PutBucketLogging in a bucket policy). For details, see Introduction to OBS Access Control, IAM Custom Policies, and Creating a Custom Bucket Policy.
The mapping between OBS regions and endpoints must comply with what is listed in Regions and Endpoints.

Method

func (obsClient ObsClient) SetBucketLoggingConfiguration(input *SetBucketLoggingConfigurationInput) (output *BaseModel, err error)

Request Parameters

**Table 1** List of request parameters
Parameter	Type	Mandatory (Yes/No)	Description
input	*SetBucketLoggingConfigurationInput	Yes	Explanation: Input parameters for configuring bucket logging. For details, see Table 2.

**Table 2** SetBucketLoggingConfigurationInput
Parameter	Type	Mandatory (Yes/No)	Description
Bucket	string	Yes	Explanation: Bucket name Restrictions: A bucket name must be unique across all accounts and regions. A bucket name: Must be 3 to 63 characters long and start with a digit or letter. Lowercase letters, digits, hyphens (-), and periods (.) are allowed. Cannot be formatted as an IP address. Cannot start or end with a hyphen (-) or period (.). Cannot contain two consecutive periods (..), for example, my..bucket. Cannot contain a period (.) and a hyphen (-) adjacent to each other, for example, my-.bucket or my.-bucket. If you repeatedly create buckets of the same name in the same region, no error will be reported and the bucket attributes comply with those set in the first creation request. Default value: None
Agency	string	Yes if the parameter is in a request to enable bucket logging	Explanation: Name of the IAM agency created by the owner of the target bucket for OBS. You can select an existing IAM agency or create one. For details about how to create an agency, see Creating an IAM Agency. Restrictions: By default, the IAM agency only requires the PutObject permission to upload logs to the target bucket. If default encryption is enabled for the target bucket, the agency also requires the KMS Administrator permission in the region where the target bucket is located. Default value: None
TargetBucket	string	Yes if you enable logging for the bucket Do not set this parameter when you disable logging for the bucket.	Explanation: Name of the bucket for storing log files Restrictions: This bucket must be in the same region as the bucket with logging enabled. A bucket name must be unique across all accounts and regions. A bucket name: Must be 3 to 63 characters long and start with a digit or letter. Lowercase letters, digits, hyphens (-), and periods (.) are allowed. Cannot be formatted as an IP address. Cannot start or end with a hyphen (-) or period (.). Cannot contain two consecutive periods (..), for example, my..bucket. Cannot contain a period (.) and a hyphen (-) adjacent to each other, for example, my-.bucket or my.-bucket. If you repeatedly create buckets of the same name in the same region, no error will be reported and the bucket attributes comply with those set in the first creation request. Default value: None
TargetPrefix	string	Yes if you enable logging for the bucket Do not set this parameter when you disable logging for the bucket.	Explanation: Name prefix for log files stored in the log storage bucket Value range: The value must contain 1 to 1,024 characters. Default value: None
TargetGrants	[]Grant	No	Explanation: Permission information list of grantees, which defines grantees and their permissions for log files. For details, see Table 3.

**Table 3** Grant
Parameter	Type	Mandatory (Yes/No)	Description
Grantee	Grantee	Yes if used as a request parameter	Explanation: Grantee information. For details, see Table 4.
Permission	PermissionType	Yes if used as a request parameter	Explanation: Granted permission Value range: See Table 7. Default value: None

**Table 4** Grantee
Parameter	Type	Mandatory (Yes/No)	Description
Type	GranteeType	Yes	Explanation: Grantee type Value range: See Table 5. Default value: None
ID	string	Yes if Type is set to GranteeUser	Explanation: Account (domain) ID of the grantee Value range: To obtain an account ID, see Obtaining the Account ID. Default value: None
DisplayName	string	No	Explanation: Account name of the grantee Restrictions: Starts with a letter. Contains 6 to 32 characters. Contains only letters, digits, hyphens (-), or underscores (_). Default value: None
URI	GroupUriType	Yes if Type is set to GranteeGroup	Explanation: Authorized user group Value range: See Table 6. Default value: None

**Table 5** GranteeType
Constant	Default Value	Description
GranteeGroup	Group	User group
GranteeUser	CanonicalUser	Individual user

**Table 6** GroupUriType
Constant	Default Value	Description
GroupAllUsers	AllUsers	All users

**Table 7** PermissionType
Constant	Default Value	Description
PermissionRead	READ	Read permission
PermissionWrite	WRITE	Write permission
PermissionReadAcp	READ_ACP	Permission to read ACL configurations
PermissionWriteAcp	WRITE_ACP	Permission to modify ACL configurations
PermissionFullControl	FULL_CONTROL	Full control access, including read and write permissions for a bucket and its ACL, or for an object and its ACL.

Responses

**Table 8** List of returned results
Parameter	Type	Description
output	*BaseModel	Explanation: Returned results. For details, see Table 9.
err	error	Explanation: Error messages returned by the API

**Table 9** BaseModel
Parameter	Type	Description
StatusCode	int	Explanation: HTTP status code Value range: A status code is a group of digits that can be 2xx (indicating successes) or 4xx or 5xx (indicating errors). It indicates the status of a response. For more information, see Status Code. Default value: None
RequestId	string	Explanation: Request ID returned by the OBS server Default value: None
ResponseHeaders	map[string][]string	Explanation: HTTP response headers Default value: None

Code Examples

This example configures logging for bucket examplebucket, with obs_test_agency as the agency, TargetPrefixtest/ as the prefix for generated log files, and TargetBucketname as the bucket for storing log files.

    
     
       
       
         package main
import (
    "fmt"
    "os"
    obs "github.com/huaweicloud/huaweicloud-sdk-go-obs/obs"
)
func main() {
    //Obtain an AK/SK pair using environment variables or import an AK/SK pair in other ways. Using hard coding may result in leakage.
    //Obtain an AK/SK pair on the management console. For details, see https://support.huaweicloud.com/intl/en-us/usermanual-ca/ca_01_0003.html.
    ak := os.Getenv("AccessKeyID")
    sk := os.Getenv("SecretAccessKey")
    // (Optional) If you use a temporary AK/SK pair and a security token to access OBS, you are advised not to use hard coding to reduce leakage risks. You can obtain an AK/SK pair using environment variables or import an AK/SK pair in other ways.
    // securityToken := os.Getenv("SecurityToken")
    // Enter the endpoint corresponding to the bucket. CN-Hong Kong is used here as an example. Replace it with the one currently in use.
    endPoint := "https://obs.ap-southeast-1.myhuaweicloud.com"
    // Create an obsClient instance.
    // If you use a temporary AK/SK pair and a security token to access OBS, use the obs.WithSecurityToken method to specify a security token when creating an instance.
    obsClient, err := obs.New(ak, sk, endPoint, obs.WithSignature(obs.SignatureObs)/*, obs.WithSecurityToken(securityToken)*/)
    if err != nil {
        fmt.Printf("Create obsClient error, errMsg: %s", err.Error())
    }
    input := &obs.SetBucketLoggingConfigurationInput{}
    // Specify a bucket name.
    input.Bucket = "examplebucket"
    // Specify an agency name (obs_test_agency as an example).
    input.Agency = "obs_test_agency"
    // Specify a bucket (TargetBucketname as an example) for storing generated log files.
    input.TargetBucket = "TargetBucketname"
    // Specify a prefix (TargetPrefixtest/ as an example) for log files to be generated.
    input.TargetPrefix = "TargetPrefixtest/"
    // Configure logging for the bucket.
    output, err := obsClient.SetBucketLoggingConfiguration(input)
    if err == nil {
        fmt.Printf("Set bucket(%s)'s logging configuration successful!\n", input.Bucket)
        fmt.Printf("RequestId:%s\n", output.RequestId)
        return
    }
    fmt.Printf("Set bucket(%s)'s logging configuration fail!\n", input.Bucket)
    if obsError, ok := err.(obs.ObsError); ok {
        fmt.Println("An ObsError was found, which means your request sent to OBS was rejected with an error response.")
        fmt.Println(obsError.Error())
    } else {
        fmt.Println("An Exception was found, which means the client encountered an internal problem when attempting to communicate with OBS, for example, the client was unable to access the network.")
        fmt.Println(err)
    }
}

        

      

    
   