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mirror of https://github.com/minio/docs.git synced 2025-05-28 00:41:14 +03:00
docs/source/reference/minio-server/minio-server.rst
Ravind Kumar ac72345962
DOCS-898: Synchronous Bucket Notifications, config API secret redaction (#960)
Closes #898 

- Adds a short section on synchronous vs asynchronous bucket
notifications
- Adds a note on specific configs which now return redacted data on `mc
admin config get`
- Found a few new webhook lambda envvars to add
2023-08-21 11:19:20 -04:00

102 KiB

MinIO Server

minio

Table of Contents

minio

MinIO Server

The minio server command starts the MinIO server process:

minio server /mnt/disk{1...4}

For examples of deploying minio server on a bare metal environment, see minio-installation.

For examples of deploying minio server on a Kubernetes environment, see Deploying a MinIO Tenant <minio-k8s-deploy-minio-tenant>.

AGPLv3

minio server is AGPLv3 <minio/blob/master/LICENSE> licensed Free and Open Source (FOSS) software.

Applications integrating mc may trigger AGPLv3 compliance requirements. MinIO Commercial Licensing is the best option for applications which trigger AGPLv3 obligations where open-sourcing the application is not an option.

Configuration Settings

The minio server process stores its configuration in the storage backend directory <minio server DIRECTORIES>. You can modify configuration options using the mc admin config command.

Syntax

minio server

Starts the minio server process.

The command has the following syntax:

minio server [FLAGS] HOSTNAME/DIRECTORIES [HOSTNAME/DIRECTORIES..]

The command accepts the following arguments:

HOSTNAME

The hostname of a minio server process.

For standalone deployments, this field is optional. You can start a standalone ~minio server process with only the ~minio server DIRECTORIES argument.

For distributed deployments, specify the hostname of each minio server in the deployment. The group of minio server processes represent a single Server Pool <minio-intro-server-pool>.

~minio server HOSTNAME supports MinIO expansion notation {x...y} to denote a sequential series of hostnames. MinIO requires sequential hostnames to identify each minio server process in the set.

For example, https://minio{1...4}.example.net expands to:

  • https://minio1.example.net
  • https://minio2.example.net
  • https://minio3.example.net
  • https://minio4.example.net

You must run the minio server command with the same combination of ~minio server HOSTNAME and ~minio server DIRECTORIES on each host in the Server Pool.

Each additional HOSTNAME/DIRECTORIES pair denotes an additional Server Set for the purpose of horizontal expansion of the MinIO deployment. For more information on Server Pools, see Server Pool <minio-intro-server-pool>.

DIRECTORIES

The directories or drives the minio server process uses as the storage backend.

~minio server DIRECTORIES supports MinIO expansion notation {x...y} to denote a sequential series of folders or drives. For example, /mnt/disk{1...4} expands to:

  • /mnt/disk1
  • /mnt/disk2
  • /mnt/disk3
  • /mnt/disk4

The ~minio server DIRECTORIES path(s) must be empty when first starting the minio <minio server> process.

The minio server process requires at least 4 drives or directories to enable erasure coding <minio-erasure-coding>.

Important

MinIO recommends locally-attached drives, where the ~minio server DIRECTORIES path points to each drive on the host machine. MinIO recommends against using network-attached storage, as network latency reduces performance of those drives compared to locally-attached storage.

For development or evaluation, you can specify multiple logical directories or partitions on a single physical volume to enable erasure coding on the deployment.

For production environments, MinIO does not recommend using multiple logical directories or partitions on a single physical disk. While MinIO supports those configurations, the potential cost savings come at the risk of decreased reliability.

--address

Binds the minio <minio server> server process to a specific network address and port number. Specify the address and port as ADDRESS:PORT, where ADDRESS is an IP address or hostname and PORT is a valid and open port on the host system.

To change the port number for all IP addresses or hostnames configured on the host machine, specify :PORT where PORT is a valid and open port on the host.

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You can configure your hosts file to have MinIO only listen on specific IPs. For example, if the machine's /etc/hosts file contains the following:

127.0.1.1       minioip
127.0.1.2       minioip

A command like the following would listen for API calls on port 9000 on both configured IP addresses.

minio server --address "minioip:9000" ~/miniodirectory

If omitted, minio <minio server> binds to port 9000 on all configured IP addresses or hostnames on the host machine.

--console-address

Specifies a static port for the embedded MinIO Console.

Omit to direct MinIO to generate a dynamic port at server startup. The MinIO server outputs the port to the system log.

--ftp

Enable and configure a File Transfer Protocol (FTP) or File Transfer Protocol over SSL/TLS (FTPS) server. Use this flag multiple times to specify an address port, a passive port range of addresses, or a TLS certificate and key as key-value pairs.

Valid keys:

  • address, which takes a single port to use for the server, typically 8021

  • _(Optional)_ passive-port-range, which restricts the range of potential ports the server can use to transfer data, such as when tight firewall rules limit the port the FTP server can request for the connection

  • _(Optional)_ tls-private-key, which takes the path to the user's private key for accessing the MinIO deployment by TLS

    Use with tls-public-cert.

  • _(Optional)_ tls-public-cert, which takes the path to the certificate for accessing the MinIO deployment by TLS

    Use with tls-private-key.

For MinIO deployments with TLS enabled, omit tls-private-key and tls-public-key to direct MinIO to use the default TLS keys for the MinIO deployment. See minio-tls for more information. You only need to specify a certificate and private key to a different set of TLS certificate and key than the MinIO default (for example, to use a different domain).

For example:

minio server http://server{1...4}/disk{1...4} \
--ftp="address=:8021"                         \
--ftp="passive-port-range=30000-40000"        \
--ftp="tls-private-key=path/to/private.key"   \
--ftp="tls-public-cert=path/to/public.crt"    \
...

--sftp

Enable and configure a SSH File Transfer Protocol (SFTP) server. Use multiple times to specify an address port and the path to the ssh private key to use as key-value pairs.

Valid keys:

  • address, which takes a single port to use for the server, typically 8022
  • ssh-private-key, which takes the path to the user's private key file

For example:

minio server http://server{1...4}/disk{1...4}                               \
--sftp="address=:8022" --sftp="ssh-private-key=/home/miniouser/.ssh/id_rsa" \
...

--certs-dir, -S

Specifies the path to the folder containing certificates the minio process uses for configuring TLS/SSL connectivity.

Omit to use the default directory paths:

  • Linux/OSX: ${HOME}/.minio/certs
  • Windows: %%USERPROFILE%%\.minio\certs.

See minio-TLS for more information on TLS/SSL connectivity.

--quiet

Disables startup information.

--anonymous

Hides sensitive information from logging.

--json

Outputs server logs and startup information in JSON format.

Environment Variables

The minio server processes uses the following environment variables during startup to set configuration settings.

Core Configuration

MINIO_VOLUMES

The directories or drives the minio server process uses as the storage backend.

Functionally equivalent to setting minio server DIRECTORIES. Use this value when configuring MinIO to run using an environment file.

MINIO_CONFIG_ENV_FILE

Specifies the full path to the file the MinIO server process uses for loading environment variables.

For systemd-managed files, setting this value to the environment file allows MinIO to reload changes to that file on using mc admin service restart to restart the deployment.

MINIO_ILM_EXPIRY_WORKERS

Specifies the number of workers to make available to expire objects configured with ILM rules for expiration. When not set, MinIO defaults to using up to half of the available processing cores available.

MINIO_DOMAIN

Set to the Fully Qualified Domain Name (FQDN) MinIO accepts Bucket DNS (Virtual Host)-style requests on.

For example, setting MINIO_DOMAIN=minio.example.net directs MinIO to accept an incoming connection request the data bucket at data.minio.example.net.

If this setting is omitted, the default is to only accept path-style requests. For example, minio.example.net/data.

Root Credentials

MINIO_ROOT_USER

The access key for the root <minio-users-root> user.

Warning

If MINIO_ROOT_USER is unset, minio defaults to minioadmin.

NEVER use the default credentials in production environments. MinIO strongly recommends specifying a unique, long, and random MINIO_ROOT_USER value for all environments.

MINIO_ROOT_PASSWORD

The secret key for the root <minio-users-root> user.

Warning

If MINIO_ROOT_PASSWORD is unset, minio defaults to minioadmin.

NEVER use the default credentials in production environments. MinIO strongly recommends specifying a unique, long, and random MINIO_ROOT_PASSWORD value for all environments.

MINIO_API_ROOT_ACCESS

This variable corresponds to the api root_access <api.root_access> configuration setting. You can use this variable to temporarily override the configuration setting and re-enable root access to the deployment.

MINIO_ACCESS_KEY

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The access key for the root <minio-users-root> user.

This environment variable is deprecated in favor of the MINIO_ROOT_USER environment variable.

Warning

If MINIO_ACCESS_KEY is unset, minio defaults to minioadmin.

NEVER use the default credentials in production environments. MinIO strongly recommends specifying a unique, long, and random MINIO_ACCESS_KEY value for all environments.

MINIO_SECRET_KEY

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The secret key for the root <minio-users-root> user.

This environment variable is deprecated in favor of the MINIO_ROOT_PASSWORD environment variable.

Warning

If MINIO_SECRET_KEY is unset, minio defaults to minioadmin.

NEVER use the default credentials in production environments. MinIO strongly recommends specifying a unique, long, and random MINIO_ACCESS_KEY value for all environments.

MINIO_ACCESS_KEY_OLD

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To perform root credential rotation, modify the MINIO_ROOT_USER and MINIO_ROOT_PASSWORD environment variables.

MINIO_SECRET_KEY_OLD

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To perform root credential rotation, modify the MINIO_ROOT_USER and MINIO_ROOT_PASSWORD environment variables.

MinIO Console

The following environment variables control behavior for the embedded MinIO Console:

MINIO_PROMETHEUS_URL

Optional

Specify the URL for a Prometheus service configured to scrape MinIO metrics <minio-metrics-collect-using-prometheus>.

The MinIO Console populates the Dashboard with cluster metrics using the minio-job Prometheus scraping job.

If you are using a standalone MinIO Console process, this variable corresponds to CONSOLE_PROMETHEUS_URL.

MINIO_PROMETHEUS_JOB_ID

Optional

Specify the custom Prometheus job ID used for scraping MinIO metrics <minio-metrics-collect-using-prometheus>.

MinIO defaults to minio-job.

If you are using a standalone MinIO Console process, this variable corresponds to CONSOLE_PROMETHEUS_JOB_ID.

MINIO_LOG_QUERY_URL

Optional

Specify the URL of a PostgreSQL service to which MinIO writes Audit logs <minio-logging-publish-audit-logs>. The embedded MinIO Console provides a Log Search tool that allows querying the PostgreSQL service for collected logs.

MINIO_BROWSER

Optional

Specify off to disable the embedded MinIO Console.

MINIO_BROWSER_LOGIN_ANIMATION

Optional

MinIO Server RELEASE.2023-05-04T21-44-30Z

Specify off to disable the animated login screen for the MinIO Console. Defaults to on.

MINIO_BROWSER_REDIRECT_URL

Optional

Specify the Fully Qualified Domain Name (FQDN) the MinIO Console listens for incoming connections on.

If you want to host the MinIO Console exclusively from a reverse-proxy service, you must specify the hostname managed by that service.

For example, consider a reverse proxy configured to route https://example.net/minio/ to the MinIO Console. You must set this environment variable to match that hostname for the Console to both listen and respond to requests using that hostname.

If you omit this variable, the Console listens and responds to all IP addresses or hostnames associated to the host machine on which the MinIO Server runs.

MINIO_SERVER_URL

Optional

Specify the Fully Qualified Domain Name (FQDN) the MinIO Console must use for connecting to the MinIO Server. The Console also uses this value for setting the root hostname when generating presigned URLs.

This setting may be required if:

  • The MinIO Server uses a TLS certificate that does not include the host local IP(s) in the certificate Subject Alternative Name (SAN) or
  • The Console must use a specific hostname to connect or reference the MinIO Server, e.g. due to a reverse proxy or similar configuration.

Key Management Service and Encryption

MINIO_KMS_KES_ENDPOINT

The endpoint for the MinIO Key Encryption Service (KES) process to use for supporting SSE-S3 and MinIO backend encryption operations.

MINIO_KMS_KES_KEY_FILE

The private key associated to the the MINIO_KMS_KES_CERT_FILE x.509 certificate to use when authenticating to the KES server. The KES server requires clients to present their certificate for performing mutual TLS (mTLS).

See the KES wiki <kes/wiki/Configuration#policy-configuration> for more complete documentation on KES access control.

MINIO_KMS_KES_CERT_FILE

The x.509 certificate to present to the KES server. The KES server requires clients to present their certificate for performing mutual TLS (mTLS).

The KES server computes an identity <kes/wiki/Configuration#policy-configuration> from the certificate and compares it to its configured policies. The KES server grants the minio server access to only those operations explicitly granted by the policy.

See the KES wiki <kes/wiki/Configuration#policy-configuration> for more complete documentation on KES access control.

MINIO_KMS_KES_KEY_NAME

The name of an external key on the Key Management system (KMS) configured on the KES server and used for performing en/decryption operations. MinIO uses this key for the following:

  • Encrypting backend data ( IAM <minio-authentication-and-identity-management>, server configuration).
  • The default encryption key for Server-Side Encryption with SSE-KMS <minio-encryption-sse-kms>.
  • The encryption key for Server-Side Encryption with SSE-S3 <minio-encryption-sse-s3>.

MINIO_KMS_KES_ENCLAVE

Use this optional environment variable to define the name of a KES enclave. A KES enclave provides an isolated space for its associated keys separate from other enclaves on a stateful KES server.

If not set, MinIO does not send enclave information. For a stateful KES server, this results in using the default enclave.

Storage Class

These environment variables configure the parity <minio-ec-parity> to use for objects written to the MinIO cluster.

MinIO Storage Classes are distinct from AWS Storage Classes, where the latter refers to the specific storage tier on which to store a given object.

MINIO_STORAGE_CLASS_STANDARD

The parity level <minio-ec-parity> for the deployment. MinIO shards objects written with the default STANDARD storage class using this parity value.

MinIO references the x-amz-storage-class header in request metadata for determining which storage class to assign an object. The specific syntax or method for setting headers depends on your preferred method for interfacing with the MinIO server.

Specify the value using EC:M notation, where M refers to the number of parity blocks to create for the object.

The following table lists the default values based on the erasure set size <minio-ec-erasure-set> of the initial server pool in the deployment:

Erasure Set Size Default Parity (EC:N)
4-5 EC:2
6 - 7 EC:3
8 - 16 EC:4

The minimum supported value is 0, which indicates no erasure coding protections. These deployments rely entirely on the storage controller or resource for availability / resiliency.

The maximum value depends on the erasure set size of the initial server pool in the deployment, where the upper bound is $\frac{\text{ERASURE_SET_SIZE}}{\text{2}}$. For example, a deployment with erasure set stripe size of 16 has a maximum standard parity of 8.

You can change this value after startup to any value between 0 and the upper bound for the erasure set size. MinIO only applies the changed parity to newly written objects. Existing objects retain the parity value in place at the time of their creation.

MINIO_STORAGE_CLASS_RRS

The parity level <minio-ec-parity> for objects written with the REDUCED storage class.

MinIO references the x-amz-storage-class header in request metadata for determining which storage class to assign an object. The specific syntax or method for setting headers depends on your preferred method for interfacing with the MinIO server.

Specify the value using EC:M notation, where M refers to the number of parity blocks to create for the object.

This value must be less than or equal to MINIO_STORAGE_CLASS_STANDARD.

You cannot set this value for deployments with an erasure set size less than 5. Defaults to EC:2.

MINIO_STORAGE_CLASS_COMMENT

Adds a comment to the storage class settings.

Metrics and Logging

These environment variables control behavior related to MinIO metrics and logging. See minio-metrics-and-alerts for more information.

MINIO_PROMETHEUS_AUTH_TYPE

Specifies the authentication mode for the Prometheus scraping endpoints <minio-metrics-and-alerts>.

  • jwt - Default MinIO requires that the scraping client specify a JWT token for authenticating requests. Use mc admin prometheus generate to generate the necessary JWT bearer tokens.
  • public MinIO does not require that scraping clients authenticate their requests.

Logging

These environment variables configure publishing regular minio server logs and audit logs to an HTTP webhook. See minio-logging for more complete documentation.

  • minio-sever-envvar-logging-regular
  • minio-sever-envvar-logging-audit
  • minio-sever-envvar-logging-audit-kafka

Server Logs

The following section documents environment variables for configuring MinIO to publish minio server logs to an HTTP webhook endpoint. See minio-logging-publish-server-logs for more complete documentation and tutorials on using these environment variables.

You can specify multiple webhook endpoints as log targets by appending a unique identifier _ID for each set of related logging environment variables. For example, the following command set two distinct server logs webhook endpoints:

export MINIO_LOGGER_WEBHOOK_ENABLE_PRIMARY="on"
export MINIO_LOGGER_WEBHOOK_AUTH_TOKEN_PRIMARY="TOKEN"
export MINIO_LOGGER_WEBHOOK_ENDPOINT_PRIMARY="http://webhook-1.example.net"

export MINIO_LOGGER_WEBHOOK_ENABLE_SECONDARY="on"
export MINIO_LOGGER_WEBHOOK_AUTH_TOKEN_SECONDARY="TOKEN"
export MINIO_LOGGER_WEBHOOK_ENDPOINT_SECONDARY="http://webhook-2.example.net"

MINIO_LOGGER_WEBHOOK_ENABLE

Specify "on" to enable publishing minio server logs to the HTTP webhook endpoint.

Requires specifying MINIO_LOGGER_WEBHOOK_ENDPOINT.

This variable corresponds to setting the top-level logger_webhook configuration setting.

MINIO_LOGGER_WEBHOOK_ENDPOINT

The HTTP endpoint of the webhook.

This variable corresponds to the logger_webhook endpoint <logger_webhook.endpoint> configuration setting.

MINIO_LOGGER_WEBHOOK_AUTH_TOKEN

Optional

The JSON Web Token (JWT) to use for authenticating to the HTTP webhook. Omit for webhooks which do not enforce authentication.

This variable corresponds to the logger_webhook auth_token <logger_webhook.auth_token> configuration setting.

MINIO_LOGGER_WEBHOOK_CLIENT_CERT

Optional

The path to the mTLS certificate to use for authenticating to the webhook logger.

Requires specifying MINIO_LOGGER_WEBHOOK_CLIENT_KEY.

This variable corresponds to the logger_webhook client_cert <logger_webhook.client_cert> configuration setting.

MINIO_LOGGER_WEBHOOK_CLIENT_KEY

Optional

The path to the mTLS certificate key to use to authenticate with the webhook logger service.

Requires specifying MINIO_LOGGER_WEBHOOK_CLIENT_CERT.

This variable corresponds to the logger_webhook client_key <logger_webhook.client_key> configuration setting.

MINIO_LOGGER_WEBHOOK_PROXY

Optional

Define a proxy to use for the webhook logger when communicating from MinIO to external webhooks.

This variable corresponds to the logger_webhook proxy <logger_webhook.proxy> configuration setting.

MINIO_LOGGER_WEBHOOK_QUEUE_DIR

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Optional

Specify the directory path, such as /opt/minio/events, to enable MinIO's persistent event store for undelivered messages. The MinIO process must have read, write, and list access on the specified directory.

MinIO stores undelivered events in the specified store while the webhook service is offline and replays the stored events when connectivity resumes.

This variable corresponds to the logger_webhook queue_dir <logger_webhook.queue_dir> configuration setting.

MINIO_LOGGER_WEBHOOK_QUEUE_SIZE

Optional

An integer value to use for the queue size for logger webhook targets.

This variable corresponds to the logger_webhook queue_size <logger_webhook.queue_size> configuration setting.

Webhook Audit Logs

The following section documents environment variables for configuring MinIO to publish audit logs to an HTTP webhook endpoint. See minio-logging-publish-audit-logs for more complete documentation and tutorials on using these environment variables.

You can specify multiple webhook endpoints as audit log targets by appending a unique identifier _ID for each set of related logging environment variables. For example, the following command set two distinct audit log webhook endpoints:

export MINIO_AUDIT_WEBHOOK_ENABLE_PRIMARY="on"
export MINIO_AUDIT_WEBHOOK_AUTH_TOKEN_PRIMARY="TOKEN"
export MINIO_AUDIT_WEBHOOK_ENDPOINT_PRIMARY="http://webhook-1.example.net"
export MINIO_AUDIT_WEBHOOK_CLIENT_CERT_SECONDARY="/tmp/cert.pem"
export MINIO_AUDIT_WEBHOOK_CLIENT_KEY_SECONDARY="/tmp/key.pem"

export MINIO_AUDIT_WEBHOOK_ENABLE_SECONDARY="on"
export MINIO_AUDIT_WEBHOOK_AUTH_TOKEN_SECONDARY="TOKEN"
export MINIO_AUDIT_WEBHOOK_ENDPOINT_SECONDARY="http://webhook-1.example.net"
export MINIO_AUDIT_WEBHOOK_CLIENT_CERT_SECONDARY="/tmp/cert.pem"
export MINIO_AUDIT_WEBHOOK_CLIENT_KEY_SECONDARY="/tmp/key.pem"

MINIO_AUDIT_WEBHOOK_ENABLE

Specify "on" to enable publishing audit logs to the HTTP webhook endpoint.

Requires specifying MINIO_AUDIT_WEBHOOK_ENDPOINT.

This variable corresponds to setting the top-level audit_webhook configuration setting.

MINIO_AUDIT_WEBHOOK_ENDPOINT

The HTTP endpoint of the webhook.

This variable corresponds to the audit_webhook endpoint <audit_webhook.endpoint> configuration setting.

MINIO_AUDIT_WEBHOOK_AUTH_TOKEN

Optional

The JSON Web Token (JWT) to use for authenticating to the HTTP webhook. Omit for webhooks which do not enforce authentication.

This variable corresponds to the audit_webhook auth_token <audit_webhook.auth_token> configuration setting.

MINIO_AUDIT_WEBHOOK_CLIENT_CERT

Optional

The x.509 client certificate to present to the HTTP webhook. Omit for webhooks which do not require clients to present a known TLS certificate.

Requires specifying MINIO_AUDIT_WEBHOOK_CLIENT_KEY.

This variable corresponds to the audit_webhook client_cert <audit_webhook.client_cert> configuration setting.

MINIO_AUDIT_WEBHOOK_CLIENT_KEY

Optional

The x.509 private key to present to the HTTP webhook. Omit for webhooks which do not require clients to present a known TLS certificate.

Requires specifying MINIO_AUDIT_WEBHOOK_CLIENT_CERT.

This variable corresponds to the audit_webhook client_key <audit_webhook.client_key> configuration setting.

MINIO_AUDIT_WEBHOOK_QUEUE_DIR

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Optional

Specify the directory path, such as /opt/minio/events, to enable MinIO's persistent event store for undelivered messages. The MinIO process must have read, write, and list access on the specified directory.

MinIO stores undelivered events in the specified store while the webhook service is offline and replays the stored events when connectivity resumes.

This variable corresponds to the audit_webhook queue_dir <audit_webhook.queue_dir> configuration setting.

MINIO_AUDIT_WEBHOOK_QUEUE_SIZE

Optional

An integer value to use for the queue size for audit webhook targets.

This variable corresponds to the audit_webhook queue_size <audit_webhook.queue_size> configuration setting.

Kafka Audit Logs

The following section documents environment variables for configuring MinIO to publish audit logs to a Kafka broker.

MINIO_AUDIT_KAFKA_ENABLE

Set to "on" to enable the target.

Set to "off" to disable the target.

MINIO_AUDIT_KAFKA_BROKERS

This environment variable corresponds to the audit_kafka.brokers configuration setting.

MINIO_AUDIT_KAFKA_TOPIC

This environment variable corresponds to the audit_kafka.topic configuration setting.

MINIO_AUDIT_KAFKA_TLS

This environment variable corresponds to the audit_kafka.tls configuration setting.

MINIO_AUDIT_KAFKA_TLS_SKIP_VERIFY

This environment variable corresponds to the audit_kafka.tls_skip_verify configuration setting.

MINIO_AUDIT_KAFKA_SASL

Requires specifying MINIO_AUDIT_KAFKA_SASL_USERNAME and MINIO_AUDIT_KAFKA_SASL_PASSWORD.

This environment variable corresponds to the audit_kafka.sasl configuration setting.

MINIO_AUDIT_KAFKA_SASL_USERNAME

This environment variable corresponds to the audit_kafka.sasl_username configuration setting.

MINIO_AUDIT_KAFKA_SASL_PASSWORD

This environment variable corresponds to the audit_kafka.sasl_password configuration setting.

MINIO_AUDIT_KAFKA_SASL_MECHANISM

Important

The PLAIN authentication mechanism sends credentials in plain text over the network. Use MINIO_AUDIT_KAFKA_TLS to enable TLS connectivity to the Kafka brokers and ensure secure transmission of SASL credentials.

This environment variable corresponds to the audit_kafka.sasl_mechanism configuration setting.

MINIO_AUDIT_KAFKA_TLS_CLIENT_AUTH

Requires specifying MINIO_AUDIT_KAFKA_CLIENT_TLS_CERT and MINIO_AUDIT_KAFKA_CLIENT_TLS_KEY.

This environment variable corresponds to the audit_kafka.tls_client_auth configuration setting.

MINIO_AUDIT_KAFKA_CLIENT_TLS_CERT

This environment variable corresponds to the audit_kafka.client_tls_cert configuration setting.

MINIO_AUDIT_KAFKA_CLIENT_TLS_KEY

This environment variable corresponds to the audit_kafka.client_tls_key configuration setting.

MINIO_AUDIT_KAFKA_VERSION

This environment variable corresponds to the audit_kafka.version configuration setting.

MINIO_AUDIT_KAFKA_COMMENT

This environment variable corresponds to the audit_kafka.comment configuration setting.

MINIO_AUDIT_KAFKA_QUEUE_DIR

This environment variable corresponds to the audit_kafka.queue_dir configuration setting.

MINIO_AUDIT_KAFKA_QUEUE_SIZE

This environment variable corresponds to the audit_kafka.queue_size configuration setting.

Bucket Notifications

These environment variables configure notification targets for use with MinIO Bucket Notifications <minio-bucket-notifications>:

  • minio-server-envvar-bucket-notification-amqp
  • minio-server-envvar-bucket-notification-mqtt
  • minio-server-envvar-bucket-notification-elasticsearch
  • minio-server-envvar-bucket-notification-nsq
  • minio-server-envvar-bucket-notification-redis
  • minio-server-envvar-bucket-notification-nats
  • minio-server-envvar-bucket-notification-postgresql
  • minio-server-envvar-bucket-notification-mysql
  • minio-server-envvar-bucket-notification-kafka
  • minio-server-envvar-bucket-notification-webhook

MINIO_API_SYNC_EVENTS

Corresponds with the ~api.sync_events configuration setting.

AMQP Service for Bucket Notifications

The following section documents environment variables for configuring an AMQP service as a target for Bucket Nofitications <minio-bucket-notifications>. See minio-bucket-notifications-publish-amqp for a tutorial on using these environment variables.

You can specify multiple AMQP service endpoints by appending a unique identifier _ID for each set of related AMQP environment variables: the top level key. For example, the following commands set two distinct AMQP service endpoints as PRIMARY and SECONDARY respectively:

set MINIO_NOTIFY_AMQP_ENABLE_PRIMARY="on"
set MINIO_NOTIFY_AMQP_URL_PRIMARY="amqp://user:password@amqp-endpoint.example.net:5672"

set MINIO_NOTIFY_AMQP_ENABLE_SECONDARY="on"
set MINIO_NOTIFY_AMQP_URL_SECONDARY="amqp://user:password@amqp-endpoint.example.net:5672"

For example, MINIO_NOTIFY_AMQP_ENABLE_PRIMARY <MINIO_NOTIFY_AMQP_ENABLE> indicates the environment variable is associated to an AMQP service endpoint with ID of PRIMARY.

MINIO_NOTIFY_AMQP_ENABLE

Requires specifying MINIO_NOTIFY_AMQP_URL if set to on.

MINIO_NOTIFY_AMQP_URL

This field is required if MINIO_NOTIFY_AMQP_ENABLE is on. All other AMQP-related variables are optional.

This variable corresponds to the notify_amqp url <notify_amqp.url> configuration setting.

MINIO_NOTIFY_AMQP_EXCHANGE

This variable corresponds to the notify_amqp exchange <notify_amqp.exchange> configuration setting.

MINIO_NOTIFY_AMQP_EXCHANGE_TYPE

This variable corresponds to the notify_amqp exchange_type <notify_amqp.exchange_type> configuration setting.

MINIO_NOTIFY_AMQP_ROUTING_KEY

This variable corresponds to the notify_amqp routing_key <notify_amqp.routing_key> configuration setting.

MINIO_NOTIFY_AMQP_MANDATORY

This variable corresponds to the notify_amqp mandatory <notify_amqp.mandatory> configuration setting.

MINIO_NOTIFY_AMQP_DURABLE

This variable corresponds to the notify_amqp durable <notify_amqp.durable> configuration setting.

MINIO_NOTIFY_AMQP_NO_WAIT

This variable corresponds to the notify_amqp no_wait <notify_amqp.no_wait> configuration setting.

MINIO_NOTIFY_AMQP_INTERNAL

This variable corresponds to the notify_amqp internal <notify_amqp.internal> configuration setting.

MINIO_NOTIFY_AMQP_AUTO_DELETED

This variable corresponds to the notify_amqp auto_deleted <notify_amqp.auto_deleted> configuration setting.

MINIO_NOTIFY_AMQP_DELIVERY_MODE

This variable corresponds to the notify_amqp delivery_mode <notify_amqp.delivery_mode> configuration setting.

MINIO_NOTIFY_AMQP_QUEUE_DIR

This variable corresponds to the notify_amqp queue_dir <notify_amqp.queue_dir> configuration setting.

MINIO_NOTIFY_AMQP_QUEUE_LIMIT

This variable corresponds to the notify_amqp queue_limit <notify_amqp.queue_limit> configuration setting.

MINIO_NOTIFY_AMQP_COMMENT

This variable corresponds to the notify_amqp comment <notify_amqp.comment> configuration setting.

MQTT Service for Bucket Notifications

The following section documents environment variables for configuring an MQTT service as a target for Bucket Nofitications <minio-bucket-notifications>. See minio-bucket-notifications-publish-mqtt for a tutorial on using these environment variables.

You can specify multiple MQTT service endpoints by appending a unique identifier _ID for each set of related MQTT environment variables: the top level key. For example, the following commands set two distinct MQTT service endpoints as PRIMARY and SECONDARY respectively:

set MINIO_NOTIFY_MQTT_ENABLE_PRIMARY="on"
set MINIO_NOTIFY_MQTT_BROKER_PRIMARY="tcp://user:password@mqtt-endpoint.example.net:1883"

set MINIO_NOTIFY_MQTT_ENABLE_SECONDARY="on"
set MINIO_NOTIFY_MQTT_BROKER_SECONDARY="tcp://user:password@mqtt-endpoint.example.net:1883"

For example, MINIO_NOTIFY_MQTT_ENABLE_PRIMARY <MINIO_NOTIFY_MQTT_ENABLE> indicates the environment variable is associated to an MQTT service endpoint with ID of PRIMARY.

MINIO_NOTIFY_MQTT_ENABLE

This variable corresponds to the notify_mqtt <notify_mqtt> configuration setting.

MINIO_NOTIFY_MQTT_BROKER

Required

This variable corresponds to the notify_mqtt broker <notify_mqtt.broker> configuration setting.

MINIO_NOTIFY_MQTT_TOPIC

Required

This variable corresponds to the notify_mqtt topic <notify_mqtt.topic> configuration setting.

MINIO_NOTIFY_MQTT_USERNAME

Required if the MQTT server/broker enforces authentication/authorization

This variable corresponds to the notify_mqtt username <notify_mqtt.username> configuration setting.

MINIO_NOTIFY_MQTT_PASSWORD

Required if the MQTT server/broker enforces authentication/authorization

This variable corresponds to the notify_mqtt password <notify_mqtt.password> configuration setting.

MINIO_NOTIFY_MQTT_QOS

This variable corresponds to the notify_mqtt qos <notify_mqtt.qos> configuration setting.

MINIO_NOTIFY_MQTT_KEEP_ALIVE_INTERVAL

This variable corresponds to the notify_mqtt keep_alive_interval <notify_mqtt.keep_alive_interval> configuration setting.

MINIO_NOTIFY_MQTT_RECONNECT_INTERVAL

This variable corresponds to the notify_mqtt reconnect_interval <notify_mqtt.reconnect_interval> configuration setting.

MINIO_NOTIFY_MQTT_QUEUE_DIR

This variable corresponds to the notify_mqtt queue_dir <notify_mqtt.queue_dir> configuration setting.

MINIO_NOTIFY_MQTT_QUEUE_LIMIT

This variable corresponds to the notify_mqtt queue_limit <notify_mqtt.queue_limit> configuration setting.

MINIO_NOTIFY_MQTT_COMMENT

This variable corresponds to the notify_mqtt comment <notify_mqtt.comment> configuration setting.

Elasticsearch Service for Bucket Notifications

The following section documents environment variables for configuring an Elasticsearch service as a target for Bucket Nofitications <minio-bucket-notifications>. See minio-bucket-notifications-publish-elasticsearch for a tutorial on using these environment variables.

You can specify multiple Elasticsearch service endpoints by appending a unique identifier _ID for each set of related Elasticsearch environment variables: the top level key. For example, the following commands set two distinct Elasticsearch service endpoints as PRIMARY and SECONDARY respectively:

set MINIO_NOTIFY_ELASTICSEARCH_ENABLE_PRIMARY="on"
set MINIO_NOTIFY_ELASTICSEARCH_URL_PRIMARY="https://user:password@elasticsearch-endpoint.example.net:9200"
set MINIO_NOTIFY_ELASTICSEARCH_INDEX_PRIMARY="bucketevents"
set MINIO_NOTIFY_ELASTICSEARCH_FORMAT_PRIMARY="namespace"

set MINIO_NOTIFY_ELASTICSEARCH_ENABLE_SECONDARY="on"
set MINIO_NOTIFY_ELASTICSEARCH_URL_SECONDARY="https://user:password@elasticsearch-endpoint.example.net:9200"
set MINIO_NOTIFY_ELASTICSEARCH_INDEX_SECONDARY="bucketevents"
set MINIO_NOTIFY_ELASTICSEARCH_FORMAT_SECONDARY="namespace"

MINIO_NOTIFY_ELASTICSEARCH_ENABLE

Requires specifying the following additional environment variables if set to on:

  • MINIO_NOTIFY_ELASTICSEARCH_URL
  • MINIO_NOTIFY_ELASTICSEARCH_INDEX
  • MINIO_NOTIFY_ELASTICSEARCH_FORMAT

This variable corresponds to the notify_elasticsearch configuration setting.

MINIO_NOTIFY_ELASTICSEARCH_URL

Required

This variable corresponds to the notify_elasticsearch url <notify_elasticsearch.url> configuration setting.

MINIO_NOTIFY_ELASTICSEARCH_INDEX

Required

This variable corresponds to the notify_elasticsearch index <notify_elasticsearch.index> configuration setting.

MINIO_NOTIFY_ELASTICSEARCH_FORMAT

Required

This variable corresponds to the notify_elasticsearch format <notify_elasticsearch.format> configuration setting.

MINIO_NOTIFY_ELASTICSEARCH_USERNAME

Optional

This variable corresponds to the notify_elasticsearch username <notify_elasticsearch.username> configuration setting.

MINIO_NOTIFY_ELASTICSEARCH_PASSWORD

Optional

This variable corresponds to the notify_elasticsearch password <notify_elasticsearch.password> configuration setting.

MINIO_NOTIFY_ELASTICSEARCH_QUEUE_DIR

Optional

This variable corresponds to the notify_elasticsearch queue_dir <notify_elasticsearch.queue_dir> configuration setting.

MINIO_NOTIFY_ELASTICSEARCH_QUEUE_LIMIT

Optional

This variable corresponds to the notify_elasticsearch queue_limit <notify_elasticsearch.queue_limit> configuration setting.

MINIO_NOTIFY_ELASTICSEARCH_COMMENT

Optional

This variable corresponds to the notify_elasticsearch comment <notify_elasticsearch.comment> configuration setting.

NSQ Service for Bucket Notifications

The following section documents environment variables for configuring an NSQ service as a target for Bucket Nofitications <minio-bucket-notifications>. See minio-bucket-notifications-publish-nsq for a tutorial on using these environment variables.

You can specify multiple NSQ service endpoints by appending a unique identifier _ID for each set of related NSQ environment variables: the top level key. For example, the following commands set two distinct NSQ service endpoints as PRIMARY and SECONDARY respectively:

set MINIO_NOTIFY_NSQ_ENABLE_PRIMARY="on"
set MINIO_NOTIFY_NSQ_NSQD_ADDRESS_PRIMARY="https://user:password@nsq-endpoint.example.net:9200"
set MINIO_NOTIFY_NSQ_TOPIC_PRIMARY="bucketevents"

set MINIO_NOTIFY_NSQ_ENABLE_SECONDARY="on"
set MINIO_NOTIFY_NSQ_NSQD_ADDRESS_SECONDARY="https://user:password@nsq-endpoint.example.net:9200"
set MINIO_NOTIFY_NSQ_TOPIC_SECONDARY="bucketevents"

MINIO_NOTIFY_NSQ_ENABLE

This variable corresponds to the notify_nsq <notify_nsq> configuration setting.

MINIO_NOTIFY_NSQ_NSQD_ADDRESS

Required

This variable corresponds to the notify_nsq nsqd_address <notify_nsq.nsqd_address> configuration setting.

MINIO_NOTIFY_NSQ_TOPIC

Required

This variable corresponds to the notify_nsq topic <notify_nsq.topic> configuration setting.

MINIO_NOTIFY_NSQ_TLS

Optional

This variable corresponds to the notify_nsq tls <notify_nsq.tls> configuration setting.

MINIO_NOTIFY_NSQ_TLS_SKIP_VERIFY

Optional

This variable corresponds to the notify_nsq tls_skip_verify <notify_nsq.tls_skip_verify> configuration setting.

MINIO_NOTIFY_NSQ_QUEUE_DIR

Optional

This variable corresponds to the notify_nsq queue_dir <notify_nsq.queue_dir> configuration setting.

MINIO_NOTIFY_NSQ_QUEUE_LIMIT

Optional

This variable corresponds to the notify_nsq queue_limit <notify_nsq.queue_limit> configuration setting.

MINIO_NOTIFY_NSQ_COMMENT

Optional

This variable corresponds to the notify_nsq comment <notify_nsq.comment> configuration setting.

Redis Service for Bucket Notifications

The following section documents environment variables for configuring an Redis service as a target for Bucket Nofitications <minio-bucket-notifications>. See minio-bucket-notifications-publish-redis for a tutorial on using these environment variables.

You can specify multiple Redis service endpoints by appending a unique identifier _ID for each set of related Redis environment variables: the top level key. For example, the following commands set two distinct Redis service endpoints as PRIMARY and SECONDARY respectively:

set MINIO_NOTIFY_REDIS_ENABLE_PRIMARY="on"
set MINIO_NOTIFY_REDIS_REDIS_ADDRESS_PRIMARY="https://user:password@redis-endpoint.example.net:9200"
set MINIO_NOTIFY_REDIS_KEY_PRIMARY="bucketevents"
set MINIO_NOTIFY_REDIS_FORMAT_PRIMARY="namespace"


set MINIO_NOTIFY_REDIS_ENABLE_SECONDARY="on"
set MINIO_NOTIFY_REDIS_REDIS_ADDRESS_SECONDARY="https://user:password@redis-endpoint.example.net:9200"
set MINIO_NOTIFY_REDIS_KEY_SECONDARY="bucketevents"
set MINIO_NOTIFY_REDIS_FORMAT_SECONDARY="namespace"

MINIO_NOTIFY_REDIS_ENABLE

Required

Requires specifying the following additional environment variables if set to on:

  • MINIO_NOTIFY_REDIS_ADDRESS
  • MINIO_NOTIFY_REDIS_KEY
  • MINIO_NOTIFY_REDIS_FORMAT

This variable corresponds to the notify_redis <notify_redis> configuration setting.

MINIO_NOTIFY_REDIS_ADDRESS

Required

This variable corresponds to the notify_redis address <notify_redis.address> configuration setting.

MINIO_NOTIFY_REDIS_KEY

Required

This variable corresponds to the notify_redis key <notify_redis.key> configuration setting.

MINIO_NOTIFY_REDIS_FORMAT

Required

This variable corresponds to the notify_redis format <notify_redis.format> configuration setting.

MINIO_NOTIFY_REDIS_PASSWORD

Optional

This variable corresponds to the notify_redis password <notify_redis.password> configuration setting.

MINIO_NOTIFY_REDIS_QUEUE_DIR

Optional

This variable corresponds to the notify_redis queue_dir <notify_redis.queue_dir> configuration setting.

MINIO_NOTIFY_REDIS_QUEUE_LIMIT

Optional

This variable corresponds to the notify_redis queue_limit <notify_redis.queue_limit> configuration setting.

MINIO_NOTIFY_REDIS_COMMENT

Optional

This variable corresponds to the notify_redis comment <notify_redis.comment> configuration setting.

NATS Service for Bucket Notifications

NATS Streaming Deprecated

NATS Streaming is deprecated. Migrate to JetStream instead.

The related MinIO configuration options and environment variables are deprecated.

The following section documents environment variables for configuring an NATS service as a target for Bucket Nofitications <minio-bucket-notifications>. See minio-bucket-notifications-publish-nats for a tutorial on using these environment variables.

You can specify multiple NATS service endpoints by appending a unique identifier _ID for each set of related NATS environment variables no to the top level key. For example, the following commands set two distinct NATS service endpoints as PRIMARY and SECONDARY respectively:

set MINIO_NOTIFY_NATS_ENABLE_PRIMARY="on"
set MINIO_NOTIFY_NATS_ADDRESS_PRIMARY="https://nats-endpoint.example.net:4222"

set MINIO_NOTIFY_NATS_ENABLE_SECONDARY="on"
set MINIO_NOTIFY_NATS_ADDRESS_SECONDARY="https://nats-endpoint.example.net:4222"

For example, MINIO_NOTIFY_NATS_ENABLE_PRIMARY <MINIO_NOTIFY_NATS_ENABLE> indicates the environment variable is associated to an NATS service endpoint with ID of PRIMARY.

MINIO_NOTIFY_NATS_ENABLE

Required

This environment variable corresponds with the notify_nats <notify_nats> configuration setting.

MINIO_NOTIFY_NATS_ADDRESS

Required

This environment variable corresponds with the notify_nats address <notify_nats.address> configuration setting.

MINIO_NOTIFY_NATS_SUBJECT

Required

This environment variable corresponds with the notify_nats subject <notify_nats.subject> configuration setting.

MINIO_NOTIFY_NATS_USERNAME

Optional

This environment variable corresponds with the notify_nats username <notify_nats.username> configuration setting.

MINIO_NOTIFY_NATS_PASSWORD

Optional

This environment variable corresponds with the notify_nats password <notify_nats.password> configuration setting.

MINIO_NOTIFY_NATS_TOKEN

Optional

This environment variable corresponds with the notify_nats token <notify_nats.token> configuration setting.

MINIO_NOTIFY_NATS_TLS

Optional

This environment variable corresponds with the notify_nats tls <notify_nats.tls> configuration setting.

MINIO_NOTIFY_NATS_TLS_SKIP_VERIFY

Optional

This environment variable corresponds with the notify_nats tls_skip_verify <notify_nats.tls_skip_verify> configuration setting.

MINIO_NOTIFY_NATS_PING_INTERVAL

Optional

This environment variable corresponds with the notify_nats ping_interval <notify_nats.ping_interval> configuration setting.

MINIO_NOTIFY_NATS_JETSTREAM

Optional

This environment variable corresponds with the notify_nats jetstream <notify_nats.jetstream> configuration setting.

MINIO_NOTIFY_NATS_STREAMING

Deprecated

Optional

This environment variable corresponds with the notify_nats streaming <notify_nats.streaming> configuration setting.

MINIO_NOTIFY_NATS_STREAMING_ASYNC

Deprecated

Optional

This environment variable corresponds with the notify_nats streaming_async <notify_nats.streaming_async> configuration setting.

MINIO_NOTIFY_NATS_STREAMING_MAX_PUB_ACKS_IN_FLIGHT

Deprecated

Optional

This environment variable corresponds with the notify_nats streaming_max_pub_acks_in_flight <notify_nats.streaming_max_pub_acks_in_flight> configuration setting.

MINIO_NOTIFY_NATS_STREAMING_CLUSTER_ID

Deprecated

Optional

This environment variable corresponds with the notify_nats streaming_cluster_id <notify_nats.streaming_cluster_id> configuration setting.

MINIO_NOTIFY_NATS_CERT_AUTHORITY

Optional

This environment variable corresponds with the notify_nats cert_authority <notify_nats.cert_authority> configuration setting.

MINIO_NOTIFY_NATS_CLIENT_CERT

Optional

This environment variable corresponds with the notify_nats client_cert <notify_nats.client_cert> configuration setting.

MINIO_NOTIFY_NATS_CLIENT_KEY

Optional

This environment variable corresponds with the notify_nats client_key <notify_nats.client_key> configuration setting.

MINIO_NOTIFY_NATS_QUEUE_DIR

Optional

This environment variable corresponds with the notify_nats queue_dir <notify_nats.queue_dir> configuration setting.

MINIO_NOTIFY_NATS_QUEUE_LIMIT

Optional

This environment variable corresponds with the notify_nats queue_limit <notify_nats.queue_limit> configuration setting.

MINIO_NOTIFY_NATS_COMMENT

Optional

This environment variable corresponds with the notify_nats comment <notify_nats.comment> configuration setting.

PostgreSQL Service for Bucket Notifications

The following section documents environment variables for configuring an POSTGRES service as a target for Bucket Nofitications <minio-bucket-notifications>. See minio-bucket-notifications-publish-postgresql for a tutorial on using these environment variables.

You can specify multiple PostgreSQL service endpoints by appending a unique identifier _ID for each set of related PostgreSQL environment variables: the top level key. For example, the following commands set two distinct PostgreSQL service endpoints as PRIMARY and SECONDARY respectively:

set MINIO_NOTIFY_POSTGRES_ENABLE_PRIMARY="on"
set MINIO_NOTIFY_POSTGRES_CONNECTION_STRING_PRIMARY="host=postgresql-endpoint.example.net port=4222..."
set MINIO_NOTIFY_POSTGRES_TABLE_PRIMARY="minioevents"
set MINIO_NOTIFY_POSTGRES_FORMAT_PRIMARY="namespace"

set MINIO_NOTIFY_POSTGRES_ENABLE_SECONDARY="on"
set MINIO_NOTIFY_POSTGRES_CONNECTION_STRING_SECONDARY="host=postgresql-endpoint.example.net port=4222..."
set MINIO_NOTIFY_POSTGRES_TABLE_SECONDARY="minioevents"
set MINIO_NOTIFY_POSTGRES_FORMAT_SECONDARY="namespace"

For example, MINIO_NOTIFY_POSTGRES_ENABLE_PRIMARY <MINIO_NOTIFY_POSTGRES_ENABLE> indicates the environment variable is associated to an PostgreSQL service endpoint with ID of PRIMARY.

MINIO_NOTIFY_POSTGRES_ENABLE

Required

Requires specifying the following additional environment variables if set to on:

  • MINIO_NOTIFY_POSTGRES_CONNECTION_STRING
  • MINIO_NOTIFY_POSTGRES_TABLE
  • MINIO_NOTIFY_POSTGRES_FORMAT

This environment variable corresponds with the notify_postgres <notify_postgres> configuration setting.

MINIO_NOTIFY_POSTGRES_CONNECTION_STRING

Required

This environment variable corresponds with the notify_postgres connection_string <notify_postgres.connection_string> configuration setting.

MINIO_NOTIFY_POSTGRES_TABLE

Required

This environment variable corresponds with the notify_postgres table <notify_postgres.table> configuration setting.

MINIO_NOTIFY_POSTGRES_FORMAT

Required

This environment variable corresponds with the notify_postgres format <notify_postgres.format> configuration setting.

MINIO_NOTIFY_POSTGRES_MAX_OPEN_CONNECTIONS

Optional

This environment variable corresponds with the notify_postgres max_open_connections <notify_postgres.max_open_connections> configuration setting.

MINIO_NOTIFY_POSTGRES_QUEUE_DIR

Optional

This environment variable corresponds with the notify_postgres queue_dir <notify_postgres.queue_dir> configuration setting.

MINIO_NOTIFY_POSTGRES_QUEUE_LIMIT

Optional

This environment variable corresponds with the notify_postgres queue_limit <notify_postgres.queue_limit> configuration setting.

MINIO_NOTIFY_POSTGRES_COMMENT

Optional

This environment variable corresponds with the notify_postgres comment <notify_postgres.comment> configuration setting.

MySQL Service for Bucket Notifications

The following section documents environment variables for configuring an MYSQL service as a target for Bucket Nofitications <minio-bucket-notifications>. See minio-bucket-notifications-publish-mysql for a tutorial on using these environment variables.

You can specify multiple MySQL service endpoints by appending a unique identifier _ID for each set of related MySQL environment variables: the top level key. For example, the following commands set two distinct MySQL service endpoints as PRIMARY and SECONDARY respectively:

set MINIO_NOTIFY_MYSQL_ENABLE_PRIMARY="on"
set MINIO_NOTIFY_MYSQL_DSN_STRING_PRIMARY="username:password@tcp(mysql.example.com:3306)/miniodb"
set MINIO_NOTIFY_MYSQL_TABLE_PRIMARY="minioevents"
set MINIO_NOTIFY_MYSQL_FORMAT_PRIMARY="namespace"

set MINIO_NOTIFY_MYSQL_ENABLE_SECONDARY="on"
set MINIO_NOTIFY_MYSQL_DSN_STRING_SECONDARY="username:password@tcp(mysql.example.com:3306)/miniodb"
set MINIO_NOTIFY_MYSQL_TABLE_SECONDARY="minioevents"
set MINIO_NOTIFY_MYSQL_FORMAT_SECONDARY="namespace"

For example, MINIO_NOTIFY_MYSQL_ENABLE_PRIMARY <MINIO_NOTIFY_MYSQL_ENABLE> indicates the environment variable is associated to an MySQL service endpoint with ID of PRIMARY.

MINIO_NOTIFY_MYSQL_ENABLE

Required

Requires specifying the following additional environment variables if set to on:

  • MINIO_NOTIFY_MYSQL_DSN_STRING
  • MINIO_NOTIFY_MYSQL_TABLE
  • MINIO_NOTIFY_MYSQL_FORMAT

This environment variable corresponds with the notify_mysql <notify_mysql> configuration setting.

MINIO_NOTIFY_MYSQL_DSN_STRING

Required

This environment variable corresponds with the notify_mysql dsn_string <notify_mysql.dsn_string> configuration setting.

MINIO_NOTIFY_MYSQL_TABLE

Required

This environment variable corresponds with the notify_mysql table <notify_mysql.table> configuration setting.

MINIO_NOTIFY_MYSQL_FORMAT

Required

This environment variable corresponds with the notify_mysql format <notify_mysql.format> configuration setting.

MINIO_NOTIFY_MYSQL_MAX_OPEN_CONNECTIONS

Optional

This environment variable corresponds with the notify_mysql max_open_connections <notify_mysql.max_open_connections> configuration setting.

MINIO_NOTIFY_MYSQL_QUEUE_DIR

Optional

This environment variable corresponds with the notify_mysql queue_dir <notify_mysql.queue_dir> configuration setting.

MINIO_NOTIFY_MYSQL_QUEUE_LIMIT

Optional

This environment variable corresponds with the notify_mysql queue_limit <notify_mysql.queue_limit> configuration setting.

MINIO_NOTIFY_MYSQL_COMMENT

Optional

This environment variable corresponds with the notify_mysql comment <notify_mysql.comment> configuration setting.

Kafka Service for Bucket Notifications

The following section documents environment variables for configuring an Kafka service as a target for Bucket Nofitications <minio-bucket-notifications>. See minio-bucket-notifications-publish-kafka for a tutorial on using these environment variables.

You can specify multiple Kafka service endpoints by appending a unique identifier _ID for each set of related Kafka environment variables: the top level key. For example, the following commands set two distinct Kafka service endpoints as PRIMARY and SECONDARY respectively:

set MINIO_NOTIFY_KAFKA_ENABLE_PRIMARY="on"
set MINIO_NOTIFY_KAFKA_BROKERS_PRIMARY="https://kafka1.example.net:9200, https://kafka2.example.net:9200"

set MINIO_NOTIFY_KAFKA_ENABLE_SECONDARY="on"
set MINIO_NOTIFY_KAFKA_BROKERS_SECONDARY="https://kafka1.example.net:9200, https://kafka2.example.net:9200"

MINIO_NOTIFY_KAFKA_ENABLE

Required

MINIO_NOTIFY_KAFKA_BROKERS

Required

This environment variable corresponds to the notify_kafka brokers <notify_kafka.brokers> configuration setting.

MINIO_NOTIFY_KAFKA_TOPIC

Optional

This environment variable corresponds to the notify_kafka topic <notify_kafka.topic> configuration setting.

MINIO_NOTIFY_KAFKA_SASL

Optional

This environment variable corresponds to the notify_kafka sasl <notify_kafka.sasl> configuration setting.

MINIO_NOTIFY_KAFKA_SASL_USERNAME

Optional

This environment variable corresponds to the notify_kafka sasl_username <notify_kafka.sasl_username> configuration setting.

MINIO_NOTIFY_KAFKA_SASL_PASSWORD

Optional

This environment variable corresponds to the notify_kafka sasl_password <notify_kafka.sasl_password> configuration setting.

MINIO_NOTIFY_KAFKA_SASL_MECHANISM

Optional

This environment variable corresponds to the notify_kafka sasl_mechanism <notify_kafka.sasl_mechanism> configuration setting.

MINIO_NOTIFY_KAFKA_TLS_CLIENT_AUTH

Optional

This environment variable corresponds to the notify_kafka tls_client_auth <notify_kafka.tls_client_auth> configuration setting.

MINIO_NOTIFY_KAFKA_TLS

Optional

This environment variable corresponds to the notify_kafka tls <notify_kafka.tls> configuration setting.

MINIO_NOTIFY_KAFKA_TLS_SKIP_VERIFY

Optional

This environment variable corresponds to the notify_kafka tls_skip_verify <notify_kafka.tls_skip_verify> configuration setting.

MINIO_NOTIFY_KAFKA_CLIENT_TLS_CERT

Optional

This environment variable corresponds to the notify_kafka client_tls_cert <notify_kafka.client_tls_cert> configuration setting.

MINIO_NOTIFY_KAFKA_CLIENT_TLS_KEY

Optional

This environment variable corresponds to the notify_kafka client_tls_key <notify_kafka.client_tls_key> configuration setting.

MINIO_NOTIFY_KAFKA_VERSION

Optional

This environment variable corresponds to the notify_kafka version <notify_kafka.version> configuration setting.

MINIO_NOTIFY_KAFKA_QUEUE_DIR

Optional

This environment variable corresponds to the notify_kafka queue_dir <notify_kafka.queue_dir> configuration setting.

MINIO_NOTIFY_KAFKA_QUEUE_LIMIT

Optional

This environment variable corresponds to the notify_kafka queue_limit <notify_kafka.queue_limit> configuration setting.

MINIO_NOTIFY_KAFKA_COMMENT

Optional

This environment variable corresponds to the notify_kafka comment <notify_kafka.comment> configuration setting.

Webhook Service for Bucket Notifications

The following section documents environment variables for configuring an Webhook service as a target for Bucket Nofitications <minio-bucket-notifications>. See minio-bucket-notifications-publish-webhook for a tutorial on using these environment variables.

You can specify multiple Webhook service endpoints by appending a unique identifier _ID for each set of related Webhook environment variables: the top level key. For example, the following commands set two distinct Webhook service endpoints as PRIMARY and SECONDARY respectively:

set MINIO_NOTIFY_WEBHOOK_ENABLE_PRIMARY="on"
set MINIO_NOTIFY_WEBHOOK_ENDPOINT_PRIMARY="https://webhook1.example.net"

set MINIO_NOTIFY_WEBHOOK_ENABLE_SECONDARY="on"
set MINIO_NOTIFY_WEBHOOK_ENDPOINT_SECONDARY="https://webhook1.example.net"

MINIO_NOTIFY_WEBHOOK_ENABLE

Required

MINIO_NOTIFY_WEBHOOK_ENDPOINT

Required

This environment variable corresponds with the notify_webhook endpoint <notify_webhook.endpoint> configuration setting.

MINIO_NOTIFY_WEBHOOK_AUTH_TOKEN

Required

This environment variable corresponds with the notify_webhook auth_token <notify_webhook.auth_token> configuration setting.

MINIO_NOTIFY_WEBHOOK_QUEUE_DIR

Optional

This environment variable corresponds with the notify_webhook queue_dir <notify_webhook.queue_dir> configuration setting.

MINIO_NOTIFY_WEBHOOK_QUEUE_LIMIT

Optional

This environment variable corresponds with the notify_webhook queue_limit <notify_webhook.queue_limit> configuration setting.

MINIO_NOTIFY_WEBHOOK_CLIENT_CERT

Optional

This environment variable corresponds with the notify_webhook client_cert <notify_webhook.client_cert> configuration setting.

MINIO_NOTIFY_WEBHOOK_CLIENT_KEY

Optional

This environment variable corresponds with the notify_webhook client_key <notify_webhook.client_key> configuration setting.

MINIO_NOTIFY_WEBHOOK_COMMENT

Optional

This environment variable corresponds with the notify_webhook comment <notify_webhook.comment> configuration setting.

Object Lambda

The following section documents environment variables for configuring MinIO to publish data to an HTTP webhook endpoint and trigger an Object Lambda function. See developers-object-lambda for more complete documentation and tutorials on using these environment variables.

You can specify multiple webhook endpoints as Lambda targets by appending a unique identifier _FUNCTIONNAME for each Object Lambda function. For example, the following command sets two distinct Object Lambda webhook endpoints:

export MINIO_LAMBDA_WEBHOOK_ENABLE_myfunction="on"
export MINIO_LAMBDA_WEBHOOK_ENDPOINT_myfunction="http://webhook-1.example.net"
export MINIO_LAMBDA_WEBHOOK_ENABLE_yourfunction="on"
export MINIO_LAMBDA_WEBHOOK_ENDPOINT_yourfunction="http://webhook-2.example.net"

MINIO_LAMBDA_WEBHOOK_ENABLE

Specify "on" to enable the Object Lambda webhook endpoint for a handler function.

Requires specifying MINIO_LAMBDA_WEBHOOK_ENDPOINT.

MINIO_LAMBDA_WEBHOOK_ENDPOINT

The HTTP endpoint of the lambda webhook for the handler function.

MINIO_LAMBDA_WEBHOOK_AUTH_TOKEN

Specify the opaque string or JWT authorization token to use for authenticating to the lambda webhook service.

RELEASE.2023-06-23T20-26-00Z

MinIO redacts this value when returned as part of mc admin config get.

MINIO_LAMBDA_WEBHOOK_CLIENT_CERT

Specify the path to the client certificate to use for performing mTLS authentication to the lambda webhook service.

MINIO_LAMBDA_WEBHOOK_CLIENT_KEY

Specify the path to the private key to use for performing mTLS authentication to the lambda webhook service.

Active Directory / LDAP Identity Management

The following section documents environment variables for enabling external identity management using an Active Directory or LDAP service. See minio-authenticate-using-ad-ldap-generic for a tutorial on using these variables.

MINIO_IDENTITY_LDAP_SERVER_ADDR

Required

This environment variable corresponds with the mc idp ldap add server_addr command.

MINIO_IDENTITY_LDAP_LOOKUP_BIND_DN

Required

This environment variable corresponds with the mc idp ldap add lookup_bind_dn command.

MINIO_IDENTITY_LDAP_LOOKUP_BIND_PASSWORD

Optional

This environment variable corresponds with the mc idp ldap add lookup_bind_password command.

MINIO_IDENTITY_LDAP_USER_DN_SEARCH_BASE_DN

Optional

This environment variable corresponds with the mc idp ldap add user_dn_search_base_dn command.

MINIO_IDENTITY_LDAP_USER_DN_SEARCH_FILTER

Optional

This environment variable corresponds with the mc idp ldap add user_dn_search_filter command.

MINIO_IDENTITY_LDAP_GROUP_SEARCH_FILTER

Optional

This environment variable corresponds with the mc idp ldap add group_search_filter command.

MINIO_IDENTITY_LDAP_GROUP_SEARCH_BASE_DN

Optional

This environment variable corresponds with the mc idp ldap add group_search_base_dn command.

MINIO_IDENTITY_LDAP_TLS_SKIP_VERIFY

Optional

This environment variable corresponds with the mc idp ldap add tls_skip_verify command.

MINIO_IDENTITY_LDAP_SERVER_INSECURE

Optional

This environment variable corresponds with the mc idp ldap add server_insecure command.

MINIO_IDENTITY_LDAP_SERVER_STARTTLS

Optional

This environment variable corresponds with the mc idp ldap add server_starttls command.

MINIO_IDENTITY_LDAP_SRV_RECORD_NAME

RELEASE.2022-12-12T19-27-27Z

Optional

This environment variable corresponds with the mc idp ldap add srv_record_name command.

MINIO_IDENTITY_LDAP_COMMENT

Optional

This environment variable corresponds with the mc idp ldap add comment command.

OpenID Identity Management

The following section documents environment variables for enabling external identity management using an OpenID Connect (OIDC)-compatible provider. See minio-external-identity-management-openid for a tutorial on using these variables.

MINIO_IDENTITY_OPENID_CONFIG_URL

Required

This environment variable corresponds with the identity_openid config_url <identity_openid.config_url> setting.

MINIO_IDENTITY_OPENID_CLIENT_ID

Optional

This environment variable corresponds with the identity_openid client_id <identity_openid.client_id> setting.

MINIO_IDENTITY_OPENID_CLIENT_SECRET

Optional

This environment variable corresponds with the identity_openid client_secret <identity_openid.client_secret> setting.

MINIO_IDENTITY_OPENID_CLAIM_NAME

Optional

This environment variable corresponds with the identity_openid claim_name <identity_openid.claim_name> setting.

MINIO_IDENTITY_OPENID_CLAIM_PREFIX

Optional

This environment variable corresponds with the identity_openid claim_prefix <identity_openid.claim_prefix> setting.

MINIO_IDENTITY_OPENID_DISPLAY_NAME

Optional

MINIO_IDENTITY_OPENID_SCOPES

Optional

This environment variable corresponds with the identity_openid scopes <identity_openid.scopes> setting.

MINIO_IDENTITY_OPENID_REDIRECT_URI

Optional

This environment variable corresponds with the identity_openid redirect_uri <identity_openid.redirect_uri> setting.

MINIO_IDENTITY_OPENID_REDIRECT_URI_DYNAMIC

Optional

This environment variable corresponds with the identity_openid redirect_uri_dynamic <identity_openid.redirect_uri_dynamic> setting.

MINIO_IDENTITY_OPENID_CLAIM_USERINFO

Optional

This environment variable corresponds with the identity_openid claim_userinfo <identity_openid.claim_userinfo> setting.

MINIO_IDENTITY_OPENID_VENDOR

Optional

This environment variable corresponds with the identity_openid vendor <identity_openid.vendor> setting.

MINIO_IDENTITY_OPENID_KEYCLOAK_REALM

Optional

This environment variable corresponds with the identity_openid keycloak_realm <identity_openid.keycloak_realm> setting.

Requires MINIO_IDENTITY_OPENID_VENDOR set to keycloak.

MINIO_IDENTITY_OPENID_KEYCLOAK_ADMIN_URL

Optional

This environment variable corresponds with the identity_openid keycloak_admin_url <identity_openid.keycloak_admin_url> setting.

Requires MINIO_IDENTITY_OPENID_VENDOR set to keycloak.

MINIO_IDENTITY_OPENID_COMMENT

Optional

This environment variable corresponds with the identity_openid comment <identity_openid.comment> setting.

MinIO Identity Management Plugin

MINIO_IDENTITY_PLUGIN_URL

Required

MINIO_IDENTITY_PLUGIN_ROLE_POLICY

Required

MINIO_IDENTITY_PLUGIN_TOKEN

Optional

MINIO_IDENTITY_PLUGIN_ROLE_ID

Optional

MINIO_IDENTITY_PLUGIN_COMMENT

Optional

Batch Replication

MINIO_BATCH_REPLICATION_WORKERS

Optional

Enable parallel workers by specifying the maximum number of processes to use when performing the batch application job.

Data Compression

The following section documents settings for enabling data compression for objects. See minio-data-compression for tutorials on using these configuration settings.

MINIO_COMPRESSION_ALLOW_ENCRYPTION

Optional

This environment variable corresponds with the compression allow_encryption <compression.allow_encryption> setting.

MINIO_COMPRESSION_ENABLE

Optional

This environment variable corresponds with the compression enable <compression.enable> setting.

MINIO_COMPRESSION_EXTENSIONS

Optional

This environment variable corresponds with the compression extensions <compression.extensions> setting.

MINIO_COMPRESSION_MIME_TYPES

Optional

This environment variable corresponds with the compression mime_types <compression.mime_types> setting.