CIO Volume With Minio

Minio is an object storage server compatible with Amazon S3 API. It is suited for storing unstructured data such as photos, videos, log files, backups and container images.

Using CIO volumes with Minio is a great way to setup a highly available S3 compatible cloud storage service for development and testing environments.

In this recipe we use a Docker Stack file to define the Minio service and the CIO volume. Then, using a single command, we can create and launch the Minio instance with highly available persistent storage.

1. Prerequisites

• Familiarity with Docker Stack.
• CIO installed on your machine. Install from here

2. Create Docker secrets for Minio

echo "secret" | docker secret create access_key -
echo "mysecret" | docker secret create secret_key -

3. Run Minio on Docker Stack

To deploy the Minio service on Docker Stack, save the following into a minio.yml file in your current working directory. Docker will pull the Minio image and CIO will create the minio1-data volume using the pre-defined MINIO profile.

version: '3.1'

services:
  minio1:
    image: minio/minio
    volumes:
      - minio1-data:/export
    ports:
      - "9001:9000"
    networks:
      - minionet
    deploy:
      restart_policy:
        delay: 10s
        max_attempts: 10
        window: 60s
    command: server /export 
    secrets:
      - secret_key
      - access_key

volumes:
  minio1-data:
    driver: cio
    driver_opts:
      profile: "MINIO"
    
networks:
  minionet:
    driver: overlay

secrets:
  secret_key:
    external: true
  access_key:
    external: true

Then run command

docker stack deploy --compose-file=minio.yml minio

The Minio instance is now available on the cluster at port 9001 and is accessible from any IP address of the cio cluster. List the node IPs with the cio nodes command:

$ cio nodes
NODENAME             IP                NODE_ID    ROLE       STATUS
c1                   192.168.3.95      4132353b   sds        normal
c2                   192.168.3.53      dceacd20   backup1    normal
c3                   192.168.3.145     9ee22782   backup2    normal
c4                   192.168.3.129     d2004822   standard   normal

In the above example, point the browser at any of the IP addresses, e.g. http://192.168.3.95:9001.
Login in with access key “secret” and secret key “mysecret” configured earlier.

Explore Further

Persistent Storage Cookbook

Cloud Scale Minio With CIO