README.md

# Docker Swarm Deployment with Terraform

This repository contains a Terraform configuration for deploying a Docker Swarm cluster.

## Prerequisites

- Docker installed on your machine
- Terraform v0.12 or later

## Docker Images

The configuration uses the following Docker images:

- `nginx:latest` for the app and web services
- `mysql:5.7` for the db service

Ensure these images are available in your Docker environment.

## Usage

1. Clone the repository:

```bash
git clone https://github.com/ozzyib/webapp.git

2. Navigate to the repository directory:

cd yourrepository

3. Initialize Terraform:

terraform init

4. Apply the Terraform configuration:

terraform apply

Terraform will output the IDs of the created resources.

Services

The configuration deploys the following services:

• app: A service running the node:latest Docker image
• db: A service running the mysql:5.7 Docker image
• web: A service running the nginx:latest Docker image, with 3 replicas

Each service is connected to a Docker network named webapp_network.

## Docker Commands

Here are some Docker commands you might find useful:

- **Pull Docker images**: Before running the Terraform configuration, ensure the necessary Docker images are available in your Docker environment:

  ```bash
  docker pull node:latest
  docker pull nginx:latest
  docker pull mysql:5.7

• List Docker services: After applying the Terraform configuration, you can list the running Docker services:

  docker service ls

• Inspect a Docker service: To inspect a Docker service and see its details:

  docker service inspect <service_name>

  Replace <service_name> with the name of the service you want to inspect (e.g., app, db, or web).

• View logs for a Docker service: To view the logs for a Docker service:

  docker service logs <service_name>

  Replace <service_name> with the name of the service whose logs you want to view.

• Remove a Docker service: To remove a Docker service:

  docker service rm <service_name>

  Replace <service_name> with the name of the service you want to remove. Note that this will stop and remove the service, and it should be used with caution.

These commands should help you manage the Docker services created by the Terraform configuration.