Redmine Cloud Attachment Pro is a versatile Redmine plugin that enables dynamic storage of file attachments in multiple backends like Local Disk, Amazon S3 Google Cloud Storage and Microsoft Azure Blob Storage.

• Seamless integration with Redmine's attachment system.
• Store files in:
  • 🖥️ Local filesystem (default)
  • ☁️ Amazon S3
  • 🌐 Google Cloud Storage and Azure Blob Storage (Need to be tested)
• Automatically uploads new attachments to the selected storage backend.
• Secure and efficient download handling from cloud sources.
• Clean deletion of attachments from cloud when removed from Redmine.
• Backward compatible and configurable per environment.

🟡 Set the active backend:

production:
  storage: s3   # or gcs or azure or local

🔹 Amazon S3 Configuration

  s3:
    access_key_id: YOUR_AWS_KEY
    secret_access_key: YOUR_AWS_SECRET
    region: your-region
    bucket: your-bucket-name
    path: redmine/files

🔹 Google Cloud Storage (GCS) Configuration

  gcs:
    project_id: your-gcp-project
    gcs_credentials: /path/to/your/service-account.json
    bucket: your-gcs-bucket
    path: redmine/files

🔹 Microsoft Azure Blob Storage Configuration

# config/configuration.yml
  azure:
    storage_account_name: "your-storage-account-name"
    storage_access_key: "your-storage-access-key"
    container: "your-container-name"
    path: "redmine/files"

🔒 Tip: Place credentials in a secure path outside of version control.

🧪 Test

Upload files in Redmine issues, documents, etc. They will be stored in the selected backend based on your configuration. Deleting a file will also remove it from the cloud.

Step 2: Install and Migrate

bundle install

No migrations are needed for this plugin.

Step 3: Optional Rake Task To update existing attachment filenames to include the S3 prefix:

bundle exec rake attachments:prefix_cloud_filenames RAILS_ENV=production

How it Works Automatically detects and uploads new files to the selected storage. Downloads from cloud storage when users request the file. Deletes files from the cloud when an attachment is destroyed.

🔐 Security All cloud credentials are securely pulled from configuration.yml. Avoid committing secrets to version control.

Compatibility Redmine 5.x and above Ruby 3.x and Rails 6.x or later AWS SDK v3

🚀 Roadmap

✅ Amazon S3 Support

⏳ Google Cloud Storage Support

⏳ Microsoft Azure Blob Support

⏳ Web UI for configuring storage

📁 Plugin Installation

Clone into Redmine's plugin directory:

git clone https://github.com/railsfactory-sivamanikandan/redmine_cloud_attachment_pro plugins/redmine_cloud_attachment_pro

Then restart Redmine.

Author Maintained by Sivamanikandan, Sedin Technologies Pvt Ltd, Chennai

📄 License MIT License