paperclip.rb

config.paperclip_defaults = {
    storage: :s3,
    s3_protocol: ':https',
    s3_permissions: 'public',
    s3_region: 'us-east-1', #ENV.fetch("AWS_REGION"),    
    s3_credentials: {
      bucket: 'kline', #ENV.fetch("AWS_BUCKET"),
      access_key_id: 'Q3AM3UQ867SPQQA43P2F',#ENV.fetch("AWS_ACCESS_KEY_ID"),
      secret_access_key: 'zuf+tfteSlswRu7BJ86wekitnifILbZam1KYY3TG', #ENV.fetch("AWS_SECRET_ACCESS_KEY"),
    },
    s3_host_name: 'play.minio.io:9000',
    s3_options: {
      endpoint: "https://play.minio.io:9000", # for aws-sdk
      force_path_style: true # for aws-sdk (required for minio)
    },
    url: ':s3_path_url',
    path: "/:class/:id.:style.:extension"
  }