n8n Docker MinIO API Backend Deployment Workflow

This n8n workflow provides a robust and flexible solution for deploying a Dockerized MinIO API backend. It acts as a central control point, allowing you to trigger deployments, manage environment variables, and execute SSH commands on your server, all from a single, easy-to-use interface.

What it does

This workflow is designed to streamline the deployment process of a MinIO API backend running in a Docker container. Here's a step-by-step breakdown:

1. Listens for Webhook Trigger: The workflow starts by exposing a webhook endpoint. When this endpoint receives a POST request, it initiates the deployment process.
2. Processes Incoming Data: The Edit Fields node (Set) is used to extract and prepare relevant data from the incoming webhook request, likely setting environment variables or configuration parameters for the deployment.
3. Conditional Logic (If): An If node introduces conditional logic, allowing the workflow to branch based on specific criteria within the incoming data. This could be used to differentiate between deployment types (e.g., staging vs. production) or to validate request parameters.
4. Conditional Routing (Switch): Following the If node, a Switch node provides further routing capabilities. This allows for more complex branching based on the value of a specific field, enabling the workflow to execute different sets of actions depending on the deployment scenario.
5. Executes SSH Commands: The SSH node is the core of the deployment, allowing the workflow to connect to a remote server and execute commands. This is where the Docker commands for pulling the MinIO image, configuring it, and running the container would be executed.
6. Custom Code Execution: A Code node is included, providing the flexibility to run custom JavaScript logic within the workflow. This can be used for advanced data manipulation, logging, or generating dynamic commands for the SSH node.
7. Responds to Webhook: Finally, the Respond to Webhook node sends a response back to the client that triggered the workflow, indicating the status or outcome of the deployment.
8. Sticky Note for Documentation: A Sticky Note is present, likely used for internal documentation, reminders, or explanations within the workflow itself.

Prerequisites/Requirements

To use this workflow, you will need:

• n8n Instance: A running n8n instance to import and execute the workflow.
• SSH Credentials: SSH access to your server where Docker and MinIO will be deployed. This includes a hostname, username, and potentially an SSH key or password.
• Docker: Docker must be installed and running on your target deployment server.
• MinIO Configuration: Knowledge of your desired MinIO configuration (e.g., access keys, secret keys, bucket names). These will likely be passed via the webhook or configured within the workflow.

Setup/Usage

1. Import the Workflow: Download the provided JSON and import it into your n8n instance.
2. Configure Webhook:
   • Open the Webhook node.
   • Copy the generated webhook URL. This is the endpoint you will call to trigger the deployment.
3. Configure SSH Credentials:
   • Open the SSH node.
   • Create or select an existing SSH credential.
   • Enter your server's hostname, username, and provide either an SSH private key or password.
4. Review and Customize:
   • Examine the Edit Fields (Set) node to understand how incoming data is processed. Adjust as needed for your specific input structure.
   • Review the If and Switch nodes to understand the conditional logic. Modify the conditions to match your deployment requirements.
   • Crucially, configure the SSH node with the exact Docker commands required to deploy your MinIO API backend. This will involve commands like docker pull minio/minio, docker run, setting environment variables, and mounting volumes.
   • If present, customize the Code node for any specific JavaScript logic you need.
   • Adjust the Respond to Webhook node to send an appropriate response.
5. Activate the Workflow: Toggle the workflow to "Active" in n8n.
6. Trigger the Workflow: Send a POST request to the webhook URL with the necessary payload to initiate a deployment.