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minio/docs/docker/README.md

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MinIO Docker Quickstart Guide Slack Go Report Card Docker Pulls

Prerequisites

Docker installed on your machine. Download the relevant installer from here.

Run Standalone MinIO on Docker.

MinIO needs a persistent volume to store configuration and application data. However, for testing purposes, you can launch MinIO by simply passing a directory (/data in the example below). This directory gets created in the container filesystem at the time of container start. But all the data is lost after container exits.

docker run -p 9000:9000 minio/minio server /data

To create a MinIO container with persistent storage, you need to map local persistent directories from the host OS to virtual config ~/.minio and export /data directories. To do this, run the below commands

GNU/Linux and macOS

docker run -p 9000:9000 --name minio1 \
  -v /mnt/data:/data \
  -v /mnt/config:/root/.minio \
  minio/minio server /data

Windows

docker run -p 9000:9000 --name minio1 \
  -v D:\data:/data \
  -v D:\minio\config:/root/.minio \
  minio/minio server /data

Run Distributed MinIO on Docker

Distributed MinIO can be deployed via Docker Compose or Swarm mode. The major difference between these two being, Docker Compose creates a single host, multi-container deployment, while Swarm mode creates a multi-host, multi-container deployment.

This means Docker Compose lets you quickly get started with Distributed MinIO on your computer - ideal for development, testing, staging environments. While deploying Distributed MinIO on Swarm offers a more robust, production level deployment.

MinIO Docker Tips

MinIO Custom Access and Secret Keys

To override MinIO's auto-generated keys, you may pass secret and access keys explicitly as environment variables. MinIO server also allows regular strings as access and secret keys.

GNU/Linux and macOS

docker run -p 9000:9000 --name minio1 \
  -e "MINIO_ACCESS_KEY=AKIAIOSFODNN7EXAMPLE" \
  -e "MINIO_SECRET_KEY=wJalrXUtnFEMI/K7MDENG/bPxRfiCYEXAMPLEKEY" \
  -v /mnt/data:/data \
  -v /mnt/config:/root/.minio \
  minio/minio server /data

Windows

docker run -p 9000:9000 --name minio1 \
  -e "MINIO_ACCESS_KEY=AKIAIOSFODNN7EXAMPLE" \
  -e "MINIO_SECRET_KEY=wJalrXUtnFEMI/K7MDENG/bPxRfiCYEXAMPLEKEY" \
  -v D:\data:/data \
  -v D:\minio\config:/root/.minio \
  minio/minio server /data

Run MinIO Docker as regular user

MinIO server doesn't run as a regular user by default in docker containers. To run MinIO container as regular user use environment variables MINIO_USERNAME and MINIO_GROUPNAME.

NOTE: If you are upgrading from existing deployments, you need to make sure this user has write access to previous persistent volumes. MinIO will not migrate the content automatically.

GNU/Linux and macOS

docker run -p 9000:9000 --name minio1 \
  -e "MINIO_ACCESS_KEY=AKIAIOSFODNN7EXAMPLE" \
  -e "MINIO_SECRET_KEY=wJalrXUtnFEMI/K7MDENG/bPxRfiCYEXAMPLEKEY" \
  -e "MINIO_USERNAME=minio-user" \
  -e "MINIO_GROUPNAME=minio-user" \
  -v /mnt/data:/data \
  minio/minio server /data

Windows

docker run -p 9000:9000 --name minio1 \
  -e "MINIO_ACCESS_KEY=AKIAIOSFODNN7EXAMPLE" \
  -e "MINIO_SECRET_KEY=wJalrXUtnFEMI/K7MDENG/bPxRfiCYEXAMPLEKEY" \
  -e "MINIO_USERNAME=minio-user" \
  -e "MINIO_GROUPNAME=minio-user" \
  -v D:\data:/data \
  minio/minio server /data

MinIO Custom Access and Secret Keys using Docker secrets

To override MinIO's auto-generated keys, you may pass secret and access keys explicitly by creating access and secret keys as Docker secrets. MinIO server also allows regular strings as access and secret keys.

echo "AKIAIOSFODNN7EXAMPLE" | docker secret create access_key -
echo "wJalrXUtnFEMI/K7MDENG/bPxRfiCYEXAMPLEKEY" | docker secret create secret_key -

Create a MinIO service using docker service to read from Docker secrets.

docker service create --name="minio-service" --secret="access_key" --secret="secret_key" minio/minio server /data

Read more about docker service here

MinIO Custom Access and Secret Key files

To use other secret names follow the instructions above and replace access_key and secret_key with your custom names (e.g. my_secret_key,my_custom_key). Run your service with

docker service create --name="minio-service" \
  --secret="my_access_key" \
  --secret="my_secret_key" \
  --env="MINIO_ACCESS_KEY_FILE=my_access_key" \
  --env="MINIO_SECRET_KEY_FILE=my_secret_key" \
  minio/minio server /data

Retrieving Container ID

To use Docker commands on a specific container, you need to know the Container ID for that container. To get the Container ID, run

docker ps -a

-a flag makes sure you get all the containers (Created, Running, Exited). Then identify the Container ID from the output.

Starting and Stopping Containers

To start a stopped container, you can use the docker start command.

docker start <container_id>

To stop a running container, you can use the docker stop command.

docker stop <container_id>

MinIO container logs

To access MinIO logs, you can use the docker logs command.

docker logs <container_id>

Monitor MinIO Docker Container

To monitor the resources used by MinIO container, you can use the docker stats command.

docker stats <container_id>

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