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README.md
MinIO Logging Quickstart Guide 
This document explains how to configure MinIO server to log to different logging targets.
Log Targets
MinIO supports currently two target types
- console
- http
Console Target
Console target is on always and cannot be disabled.
HTTP Target
HTTP target logs to a generic HTTP endpoint in JSON format and is not enabled by default. To enable HTTP target logging you would have to update your MinIO server configuration using mc admin config set command.
Assuming mc is already configured
mc admin config get myminio/ logger_http
logger_http:target1 auth_token="" endpoint="" state="off"
mc admin config set myminio logger_http:target1 auth_token="" endpoint="http://endpoint:port/path" state="on"
mc admin service restart myminio
NOTE: http://endpoint:port/path is a placeholder value to indicate the URL format, please change this accordingly as per your configuration.
MinIO also honors environment variable for HTTP target logging as shown below, this setting will override the endpoint settings in the MinIO server config.
export MINIO_LOGGER_HTTP_AUTH_TOKEN_target1="token"
export MINIO_LOGGER_HTTP_ENDPOINT_target1=http://localhost:8080/minio/logs
minio server /mnt/data
Audit Targets
Assuming mc is already configured
mc admin config get myminio/ logger_http_audit
logger_http_audit:target1 auth_token="" endpoint="" state="off"
mc admin config set myminio logger_http_audit:target1 auth_token="" endpoint="http://endpoint:port/path" state="on"
mc admin service restart myminio
NOTE: http://endpoint:port/path is a placeholder value to indicate the URL format, please change this accordingly as per your configuration.
MinIO also honors environment variable for HTTP target Audit logging as shown below, this setting will override the endpoint settings in the MinIO server config.
export MINIO_LOGGER_HTTP_AUDIT_AUTH_TOKEN_target1="token"
export MINIO_LOGGER_HTTP_AUDIT_ENDPOINT_target1=http://localhost:8080/minio/logs
minio server /mnt/data
Setting this environment variable automatically enables audit logging to the HTTP target. The audit logging is in JSON format as described below.
{
"version": "1",
"deploymentid": "bc0e4d1e-bacc-42eb-91ad-2d7f3eacfa8d",
"time": "2019-08-12T21:34:37.187817748Z",
"api": {
"name": "PutObject",
"bucket": "testbucket",
"object": "hosts",
"status": "OK",
"statusCode": 200,
"timeToFirstByte": "0s",
"timeToResponse": "2.143308ms"
},
"remotehost": "127.0.0.1",
"requestID": "15BA4A72C0C70AFC",
"userAgent": "MinIO (linux; amd64) minio-go/v6.0.32 mc/2019-08-12T18:27:13Z",
"requestHeader": {
"Authorization": "AWS4-HMAC-SHA256 Credential=minio/20190812/us-east-1/s3/aws4_request,SignedHeaders=host;x-amz-content-sha256;x-amz-date;x-amz-decoded-content-length,Signature=d3f02a6aeddeb29b06e1773b6a8422112890981269f2463a26f307b60423177c",
"Content-Length": "686",
"Content-Type": "application/octet-stream",
"User-Agent": "MinIO (linux; amd64) minio-go/v6.0.32 mc/2019-08-12T18:27:13Z",
"X-Amz-Content-Sha256": "STREAMING-AWS4-HMAC-SHA256-PAYLOAD",
"X-Amz-Date": "20190812T213437Z",
"X-Amz-Decoded-Content-Length": "512"
},
"responseHeader": {
"Accept-Ranges": "bytes",
"Content-Length": "0",
"Content-Security-Policy": "block-all-mixed-content",
"ETag": "a414c889dc276457bd7175f974332cb0-1",
"Server": "MinIO/DEVELOPMENT.2019-08-12T21-28-07Z",
"Vary": "Origin",
"X-Amz-Request-Id": "15BA4A72C0C70AFC",
"X-Xss-Protection": "1; mode=block"
}
}