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145 lines
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145 lines
8.0 KiB
Markdown
# Minio Server `config.json` (v27) Guide [](https://slack.minio.io) [](https://goreportcard.com/report/minio/minio) [](https://hub.docker.com/r/minio/minio/) [](https://codecov.io/gh/minio/minio)
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Minio server stored all its configuration data in `${HOME}/.minio/config.json` file by default.For all releases beyond minio.RELEASE.2017-08-05T00-00-53Z, the configuration data will be migrated to the Minio's backend directory. All configuration changes can be made using [`mc admin config` get/set commands](https://github.com/minio/mc/blob/master/docs/minio-admin-complete-guide.md). Following sections provide detailed explanation of each fields and how to customize them. A complete example of `config.json` is available [here](https://raw.githubusercontent.com/minio/minio/master/docs/config/config.sample.json)
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## Configuration Directory
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The default configuration directory is `${HOME}/.minio`. Till the release `RELEASE.2018-08-02T23-11-36Z` , Minio server configuration file (`config.json`) was stored in the configuration directory. However for releases beyond `RELEASE.2018-08-18T03-49-57Z`, the configuration file (only), has been migrated to the backend storage directory.
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You can override the default configuration directory using `--config-dir` command-line option. Please note that this won't have an effect on the `config.json` file as it is always stored on the backend storage, along with data. Minio server generates a new `config.json` with auto-generated access credentials when its started for the first time.
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```sh
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minio server --config-dir /etc/minio /data
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```
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### Certificate Directory
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TLS certificates are stored under ``${HOME}/.minio/certs`` directory. You need to place certificates here to enable `HTTPS` based access. Read more about [How to secure access to Minio server with TLS](https://docs.minio.io/docs/how-to-secure-access-to-minio-server-with-tls).
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Following is the directory structure for Minio server with TLS certificates.
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```sh
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$ tree ~/.minio
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/home/user1/.minio
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├── certs
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│ ├── CAs
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│ ├── private.key
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│ └── public.crt
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```
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### Configuration Fields
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#### Editing Configuration Fields
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For releases after minio.RELEASE.2017-08-05T00-00-53Z, configuration changes can be done using [mc]((https://docs.minio.io/docs/minio-client-quickstart-guide))
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##### Get current configuration for Minio deployment
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```sh
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$ mc admin config get myminio/ > /tmp/myconfig
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```
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##### Set current configuration for Minio deployment
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```sh
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$ mc admin config set myminio < /tmp/myconfig
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```
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The `mc admin` config API will evolve soon to be able to configure specific fields using get/set commands.
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#### Version
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|Field|Type|Description|
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|``version``|_string_| `version` determines the configuration file format. Any older version will be automatically be migrated to the latest version upon startup. [DO NOT EDIT THIS FIELD MANUALLY]|
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#### Credential
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|Field|Type|Description|
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|``credential``| | Auth credential for object storage and web access.|
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|``credential.accessKey`` | _string_ | Access key of minimum 3 characters in length. You may override this field with `MINIO_ACCESS_KEY` environment variable.|
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|``credential.secretKey`` | _string_ | Secret key of minimum 8 characters in length. You may override this field with `MINIO_SECRET_KEY` environment variable.|
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Example:
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```sh
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export MINIO_ACCESS_KEY=admin
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export MINIO_SECRET_KEY=password
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minio server /data
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```
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#### Region
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|Field|Type|Description|
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|``region``| _string_ | `region` describes the physical location of the server. By default it is blank. You may override this field with `MINIO_REGION` environment variable. If you are unsure leave it unset.|
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Example:
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```sh
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export MINIO_REGION="my_region"
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minio server /data
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```
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#### Browser
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|Field|Type|Description|
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|``browser``| _string_ | Enable or disable access to web UI. By default it is set to `on`. You may override this field with ``MINIO_BROWSER`` environment variable.|
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Example:
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```sh
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export MINIO_BROWSER=off
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minio server /data
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```
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#### Worm
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|Field|Type|Description|
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|``worm``| _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.|
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Example:
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```sh
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export MINIO_WORM=on
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minio server /data
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```
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### Domain
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|Field|Type|Description|
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|``domain``| _string_ | Enable virtual-host-style requests i.e http://bucket.mydomain.com/object|
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By default, Minio supports path-style requests which look like http://mydomain.com/bucket/object. MINIO_DOMAIN environmental variable (or `domain` in config.json) can be used to enable virtual-host-style requests. If the request `Host` header matches with `(.+).mydomain.com` then the mattched pattern `$1` is used as bucket and the path is used as object. More information on path-style and virtual-host-style [here](http://docs.aws.amazon.com/AmazonS3/latest/dev/RESTAPI.html)
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Example:
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```sh
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export MINIO_DOMAIN=mydomain.com
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minio server /data
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```
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### Storage Class
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|Field|Type|Description|
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|``storageclass``| | Set storage class for configurable data and parity, as per object basis.|
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|``storageclass.standard`` | _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`.|
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|``storageclass.rrs`` | _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`.|
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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](https://github.com/minio/minio/blob/master/docs/erasure/storage-class/README.md).
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### Cache
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|Field|Type|Description|
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|``drives``| _[]string_ | List of mounted file system drives with [`atime`](http://kerolasa.github.io/filetimes.html) support enabled|
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|``exclude`` | _[]string_ | List of wildcard patterns for prefixes to exclude from cache |
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|``expiry`` | _int_ | Days to cache expiry |
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|``maxuse`` | _int_ | Percentage of disk available to cache |
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#### Notify
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|Field|Type|Description|
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|``notify``| |Notify enables bucket notification events for lambda computing via the following targets.|
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|``notify.amqp``| |[Configure to publish Minio events via AMQP target.](https://docs.minio.io/docs/minio-bucket-notification-guide#AMQP)|
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|``notify.nats``| |[Configure to publish Minio events via NATS target.](https://docs.minio.io/docs/minio-bucket-notification-guide#NATS)|
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|``notify.elasticsearch``| |[Configure to publish Minio events via Elasticsearch target.](https://docs.minio.io/docs/minio-bucket-notification-guide#Elasticsearch)|
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|``notify.redis``| |[Configure to publish Minio events via Redis target.](https://docs.minio.io/docs/minio-bucket-notification-guide#Redis)|
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|``notify.postgresql``| |[Configure to publish Minio events via PostgreSQL target.](https://docs.minio.io/docs/minio-bucket-notification-guide#PostgreSQL)|
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|``notify.kafka``| |[Configure to publish Minio events via Apache Kafka target.](https://docs.minio.io/docs/minio-bucket-notification-guide#apache-kafka)|
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|``notify.webhook``| |[Configure to publish Minio events via Webhooks target.](https://docs.minio.io/docs/minio-bucket-notification-guide#webhooks)|
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|``notify.mysql``| |[Configure to publish Minio events via MySql target.](https://docs.minio.io/docs/minio-bucket-notification-guide#MySQL)|
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|``notify.mqtt``| |[Configure to publish Minio events via MQTT target.](https://docs.minio.io/docs/minio-bucket-notification-guide#MQTT)|
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## Explore Further
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* [Minio Quickstart Guide](https://docs.minio.io/docs/minio-quickstart-guide)
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