9.6 KiB
MinIO Server Config Guide 
Configuration Directory
Till MinIO release RELEASE.2018-08-02T23-11-36Z, MinIO server configuration file (config.json) was stored in the configuration directory specified by --config-dir or defaulted to ${HOME}/.minio. However from releases after RELEASE.2018-08-18T03-49-57Z, the configuration file (only), has been migrated to the storage backend (storage backend is the directory passed to MinIO server while starting the server).
You can specify the location of your existing config using --config-dir, MinIO will migrate the config.json to your backend storage. Your current config.json will be renamed upon successful migration as config.json.deprecated in your current --config-dir. All your existing configurations are honored after this migration.
Additionally --config-dir is now a legacy option which will is scheduled for removal in future, so please update your local startup, ansible scripts accordingly.
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MinIO also encrypts all the config, IAM and policies content with admin credentials.
Certificate Directory
TLS certificates by default are stored under ${HOME}/.minio/certs directory. You need to place certificates here to enable HTTPS based access. Read more about How to secure access to MinIO server with TLS.
Following is the directory structure for MinIO server with TLS certificates.
$ mc tree --files ~/.minio
/home/user1/.minio
└─ certs
├─ CAs
├─ private.key
└─ public.crt
You can provide a custom certs directory using --certs-dir command line option.
Credentials
On MinIO admin credentials or root credentials are only allowed to be changed using ENVs MINIO_ACCESS_KEY and MINIO_SECRET_KEY.
export MINIO_ACCESS_KEY=minio
export MINIO_SECRET_KEY=minio13
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Region
| Field | Type | Description |
|---|---|---|
region name=my_region |
string | region describes the physical location of the server. By default it is blank. You may override this field with MINIO_REGION_NAME environment variable. If you are unsure leave it unset. |
Example:
export MINIO_REGION_NAME="my_region"
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Worm
| Field | Type | Description |
|---|---|---|
worm state=on |
string | Enable this to turn on Write-Once-Read-Many. By default it is set to off. You may override this field with MINIO_WORM environment variable. |
Example:
export MINIO_WORM_STATE=on
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Storage Class
| Field | Type | Description |
|---|---|---|
storageclass |
Set storage class for configurable data and parity, as per object basis. | |
storageclass standard=EC:4 |
string | Value for standard storage class. It should be in the format EC:Parity, for example to set 4 disk parity for standard storage class objects, set this field to EC:4. |
storageclass rrs=EC:2 |
string | Value for reduced redundancy storage class. It should be in the format EC:Parity, for example to set 3 disk parity for reduced redundancy storage class objects, set this field to EC:3. |
By default, parity for objects with standard storage class is set to N/2, and parity for objects with reduced redundancy storage class objects is set to 2. Read more about storage class support in MinIO server here.
Cache
| Field | Type | Description |
|---|---|---|
cache drives="/mnt/drive1;/mnt/drive2;/mnt/cache{1...3}" |
[]string | List of mounted file system drives with atime support enabled |
cache exclude="*.pdf;mybucket/*" |
[]string | List of wildcard patterns for prefixes to exclude from cache |
cache expiry=90 |
int | Days to cache expiry |
cache quota=70 |
int | Percentage of disk available to cache |
Notify
| Field | Type | Description |
|---|---|---|
notify_amqp |
Configure to publish MinIO events via AMQP target. | |
notify_nats |
Configure to publish MinIO events via NATS target. | |
notify_elasticsearch |
Configure to publish MinIO events via Elasticsearch target. | |
notify_redis |
Configure to publish MinIO events via Redis target. | |
notify_postgresql |
Configure to publish MinIO events via PostgreSQL target. | |
notify_kafka |
Configure to publish MinIO events via Apache Kafka target. | |
notify_webhook |
Configure to publish MinIO events via Webhooks target. | |
notify_mysql |
Configure to publish MinIO events via MySql target. | |
notify_mqtt |
Configure to publish MinIO events via MQTT target. |
Accessing configuration file
All configuration changes can be made using mc admin config get/set commands. Following sections provide brief explanation of fields and how to customize them. A complete example of config.json is available here
Environment only settings
Browser
Enable or disable access to web UI. By default it is set to on. You may override this field with MINIO_BROWSER environment variable.
Example:
export MINIO_BROWSER=off
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Domain
By default, MinIO supports path-style requests that are of the format http://mydomain.com/bucket/object. MINIO_DOMAIN environment variable is used to enable virtual-host-style requests. If the request Host header matches with (.+).mydomain.com then the matched pattern $1 is used as bucket and the path is used as object. More information on path-style and virtual-host-style here
Example:
export MINIO_DOMAIN=mydomain.com
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For advanced use cases MINIO_DOMAIN environment variable supports multiple-domains with comma separated values.
export MINIO_DOMAIN=sub1.mydomain.com,sub2.mydomain.com
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