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https://github.com/fnbubbles420-org/docker-simple-app
This is a Example on how to use Docker for Beginners
https://github.com/fnbubbles420-org/docker-simple-app
charity docker dockerfile example fnbubbles420org javascript nonprofit organization
Last synced: 5 days ago
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This is a Example on how to use Docker for Beginners
- Host: GitHub
- URL: https://github.com/fnbubbles420-org/docker-simple-app
- Owner: FNBUBBLES420-ORG
- License: other
- Created: 2024-10-06T23:54:03.000Z (3 months ago)
- Default Branch: main
- Last Pushed: 2024-12-06T04:22:31.000Z (24 days ago)
- Last Synced: 2024-12-06T05:22:13.319Z (24 days ago)
- Topics: charity, docker, dockerfile, example, fnbubbles420org, javascript, nonprofit, organization
- Language: Dockerfile
- Homepage: https://www.fnbubbles420.org/ourmission
- Size: 81.1 KB
- Stars: 1
- Watchers: 1
- Forks: 1
- Open Issues: 0
-
Metadata Files:
- Readme: README.md
- Funding: .github/FUNDING.yml
- License: LICENSE
- Code of conduct: CODE_OF_CONDUCT.md
- Security: SECURITY.md
Awesome Lists containing this project
README
# This is an Example on How to Use Docker for Beginners
## Download and Install `Docker`
- **[Download Docker - arm64](https://desktop.docker.com/win/main/arm64/Docker%20Desktop%20Installer.exe?utm_source=docker&utm_medium=webreferral&utm_campaign=dd-smartbutton&utm_location=module)**
- **[Download Docker - amd64](https://desktop.docker.com/win/main/amd64/Docker%20Desktop%20Installer.exe?utm_source=docker&utm_medium=webreferral&utm_campaign=dd-smartbutton&utm_location=module)**
- **Follow the instructions to install `Docker Desktop App` if you need help**
### Join the Discord - [Fnbubbles420 Org Community](https://www.discord.fnbubbles420.org/invite)
## 1. Create the Project Files
- **a. Create a Folder for Your Project:**
Open your terminal or command prompt and create a directory:
```bash
mkdir docker-simple-app
cd docker-simple-app
**b. Create** `app.js`: Inside the docker-simple-app folder, create the `app.js` file. This will be your Node.js web server.
`app.js` content:
```js
// app.js
const express = require('express');
const app = express();
const port = 9090;
app.get('/', (req, res) => {
res.send('Hello, World! from bubblesthedev');
});
app.listen(port, () => {
console.log(`App listening on port ${port}`);
});
```
**c. Create** `package.json`: Inside the same folder, create a `package.json` file. This will describe your app and its dependencies.
`package.json` content:
```json
{
"name": "docker-simple-app",
"version": "1.0.0",
"lockfileVersion": 3,
"requires": true,
"packages": {
"": {
"name": "docker-simple-app",
"version": "1.0.0"
}
},
"description": "## Download and install `Docker` - **[Download Docker- arm64](https://desktop.docker.com/win/main/arm64/Docker%20Desktop%20Installer.exe?utm_source=docker&utm_medium=webreferral&utm_campaign=dd-smartbutton&utm_location=module)** - **[Download_Docker- amd64](https://desktop.docker.com/win/main/amd64/Docker%20Desktop%20Installer.exe?utm_source=docker&utm_medium=webreferral&utm_campaign=dd-smartbutton&utm_location=module)** - **Follow the Instruction to install `Docker Desktop App` if you need help** ### Join the Discord - [Fnbubbles420 Org Community](https://www.discord.fnbubbles420.org/invite)",
"main": "app.js",
"scripts": {
"start": "node app.js",
"test": "echo \"Error: no test specified\" && exit 1"
},
"keywords": [],
"author": "bubblesthedev",
"license": "ISC",
"dependencies": {
"express": "^4.21.1"
}
}
```
## 2. Create the Dockerfile
Inside the `docker-simple-app` folder, create a file named `Dockerfile``. This file tells Docker how to build the image.
`Dockerfile` content:
```Dockerfile
# Use the official Node.js LTS image based on Alpine
FROM node:lts-alpine
# Set environment variables for production
ENV NODE_ENV=production
# Update apk and explicitly install OpenSSL and other necessary dependencies
RUN apk update && apk add --no-cache openssl bash
# Set working directory inside the container
WORKDIR /app
# Copy package.json and package-lock.json first to leverage Docker cache
COPY package.json package-lock.json ./
# Install dependencies securely
RUN npm ci --only=production
# Copy the rest of the application files
COPY . .
# Expose the app port
EXPOSE 9090
# Command to start the app
CMD ["npm", "start"]
```
## 3. Build the Docker Image
After creating your project files, open your terminal or command prompt in the `docker-simple-app` folder and run the following command to build the Docker image:
```
docker build -t simple-node-app .
```
- `-t simple-node-app`: This tags the image with the name `simple-node-app`.
- `.`: This tells Docker to use the Dockerfile in the current directory.
## 4. Run the Docker Container
Once the image is built, you can run the container using:
```
docker run -p 9090:9090 simple-node-app
```
- `-p 9090:9090`: This maps port 9090 on your local machine to port 9090 in the Docker container.
## 5. Access the Application
Open your browser and go to:
```
http://localhost:9090
```
- You should see the message:
```
Hello, World! from bubblesthedev
```
## 6. Stop the Container
To stop the running container, press `CTRL + C` in the terminal where the container is running.
### List of Running Docker Containers
```
docker ps -a
```
### Stop a Specific Container
```
docker stop
```
- Then run this command again to check:
```
docker ps -a
```
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