1. Set up your Vultr Account
   • [x] Sign up for a Vultr account if you don't have one.
   • [x] Obtain your Vultr API key to authenticate Terraform with Vultr.
2. Install Terraform
   • [x] Download and install Terraform on your local machine.
   • [x] Verify the installation by running terraform version in the terminal.
3. Organize Your Project Directory
   • [x] Create a new directory for your Node.js project and Terraform configuration.
   • [x] Place your Node.js application code in the appropriate directory.
4. Initialize Terraform Configuration
   • [x] Inside the Terraform directory, create a main.tf file for the Vultr provider configuration and resource definitions.
   • [x] Run terraform init to initialize the Terraform configuration.
5. Define Vultr Provider and Swarm Variables
   • [x] Specify the Vultr provider in the main.tf file, providing your Vultr API key.
   • [x] Define variables for your project, such as the number of nodes, instance size, and region.
6. Provision Vultr Servers
   • [x] Create a resource definition for the Vultr server instances in the main.tf file.
   • [x] Use the defined variables to configure the number of nodes and instance characteristics.
7. Create Docker Swarm
   • [x] Add a script or provisioner to bootstrap the Docker Swarm on the Vultr instances.
   • [x] Configure the Swarm manager and worker nodes accordingly.
8. Build Docker Images
   • [x] Create a Dockerfile in your Node.js project directory to build your Node.js application image.
   • [x] Use a CI/CD pipeline or Docker build commands to build the Docker image and push it to a container registry.
9. Deploy the Node.js Application
   • [x] Create a docker-compose.yml file in your Node.js project directory to define the service configurations.
   • [x] Use a script or provisioner to copy the docker-compose.yml and application files to the Vultr instances.
   • [x] Deploy the Node.js application using Docker Swarm commands.
10. Set Up Load Balancer (Optional)
    • [ ] If desired, provision a load balancer to distribute incoming traffic to Docker Swarm nodes.
    • [ ] Configure the load balancer settings to route traffic to the Docker services.
11. Configure DNS and Domain (Optional)
    • [ ] Set up DNS records for your domain to point to the load balancer or individual Vultr instances.
    • [ ] Configure any necessary domain settings for your Node.js application.
12. Testing and Monitoring
    • [x] Test your Node.js application to ensure it is functioning correctly within the Docker Swarm.
    • [x] Set up monitoring and logging solutions to track the performance and health of your application and infrastructure.
13. Scaling and Maintenance
    • [x] Use Terraform to scale your infrastructure as needed, adding or removing nodes from the Swarm.
    • [x] Implement regular maintenance procedures for your Docker Swarm and Vultr instances.
14. Security and Backup
    • [x] Implement security best practices for your Docker Swarm and Vultr hosting environment.
    • [x] Set up regular backups and disaster recovery measures for your application and data.
15. Deployment Validation
    • [x] After deployment, validate that your Node.js application is accessible and functioning as expected.
    • [x] Monitor the system for any issues and make adjustments as necessary.

By following this roadmap, you can deploy your Node.js project with Docker Swarm on Vultr Hosting Server using Terraform in a structured and organized manner. Remember to regularly update and maintain your infrastructure to ensure smooth operations of your application.

Sumary

1. Deploy host by terraform - DONE
2. Use terraform output to setup docker-swarm - DONE