Demo - add dockerfile & api route

[wvl94]

💡 PR Summary generated by FirstMate

Overview: Added a Dockerfile and a new API route for enhanced functionality.

Changes:
Dockerfile creation:

• Added a Dockerfile to containerize the application using Node.js 19-alpine.
• Set working directory, user permissions, and exposed port 8080 for the app.

API route update:

• Introduced a new route /get/:id in exampleRouter.js for fetching data by ID.

Configuration adjustment:

• Changed default server port from 8080 to 80 in appConfig.js for consistency.

TLDR: This PR adds a Dockerfile for containerization, introduces a new API route, and updates the default server port. Review the Dockerfile and new route implementation for key changes.

_{^{Generated by FirstMate and automatically updated on every commit.}}

[firstmatebot]

PR Review

⚠️ It seems that you can still improve the quality of your PR:

    ❌ Documentation drift: Update documentation for port changes (8080 and 80).
    ❌ Security issues: Missing permission middleware on '/get/:id' route.
    ❌ Docker best practices: Implement multi-stage build in Dockerfile for optimization.

_{^{Generated by Firstmate to make sure you can focus on coding new features.}}

[firstmatebot]

You changed the application to run on port 8080 in the Dockerfile. Additionally, the default server port in appConfig.js was changed to 80. These changes are important and should be reflected in the documentation to ensure users know how to start the application correctly and which ports to use.

Example documentation update:

## Running the Application

To start the application, use the following command:

```bash
docker run -p 8080:8080 your-image-name

The application will run on port 8080 by default.

Configuration

The default server port is set to 80. You can override this by setting the PORT environment variable.

[firstmatebot]

The route '/get/:id' is missing the grantAccessByPermissionMiddleware, which is essential for proper permission checks. Update the route definition to include this middleware as follows:

+ router.route("/get/:id").get(grantAccessByPermissionMiddleware([API_PERMISSIONS.PUBLIC_ENDPOINT]), exampleController.getById)

(Based on guideline 'Routes should check permissions')

[firstmatebot]

I analysed the failed pipeline job Validate docker:

Failure Analysis

The pipeline crashed during the Docker build step, specifically when trying to install git using the command apk add --no-cache git. The error logs indicate a permission issue:

ERROR: Unable to lock database: Permission denied
ERROR: Failed to open apk database: Permission denied

This suggests that the RUN command is being executed as a non-root user (appuser), which does not have the necessary permissions to install packages. The relevant part of the Dockerfile is:

7 |     USER appuser
9 | >>> RUN apk add --no-cache git

Suggested Fix

To resolve this issue, you can modify the Dockerfile to switch back to the root user before running the apk add command. Here’s how you can adjust the Dockerfile:

7 |     USER appuser
+ 8 |     USER root
9 | >>> RUN apk add --no-cache git
10 |     USER appuser

This change allows the apk add command to execute with the necessary permissions, and then you can switch back to the appuser for subsequent commands.

[firstmatebot]

PR Review

⚠️ It seems that you can still improve the quality of your PR:

    ❌ Documentation drift: Update documentation for new port configuration (8080) in Dockerfile and appConfig.js.
    ❌ Security issues: Missing permission checks on '/get/:id' route; implement grantAccessByPermissionMiddleware.
    ❌ Docker best practices: Dockerfile lacks multi-stage builds; restructure for efficiency.

_{^{Generated by Firstmate to make sure you can focus on coding new features.}}

[firstmatebot]

You changed the application to run on port 8080 in the Dockerfile and modified the default server port to 80 in appConfig.js. This change seems important, so it might be smart to update the documentation accordingly. Make sure to specify the correct port for running the application.

Example documentation update:

### Running the Application

To start the application, use the following command:

```bash
docker run -p 8080:8080 your-image-name

The application will be accessible at http://localhost:8080.

[firstmatebot]

The route '/get/:id' does not implement the grantAccessByPermissionMiddleware function for permission checks. According to the security guidelines, all routes must include this middleware. Update the route as follows:

router.route("/get/:id").get(grantAccessByPermissionMiddleware([API_PERMISSIONS.PUBLIC_ENDPOINT]), exampleController.getById);

(Based on guideline 'Routes should check permissions')

[firstmatebot]

Your Dockerfile does not utilize multi-stage builds, which can significantly reduce the final image size and improve build efficiency. Consider restructuring it as follows:

# Stage 1: Build
FROM node:19-alpine AS builder
WORKDIR /usr/src/app
COPY package*.json ./
RUN npm install
COPY . .

# Stage 2: Production
FROM node:19-alpine
WORKDIR /usr/src/app
COPY --from=builder /usr/src/app .
EXPOSE 8080
CMD ["npm", "start", "--no-update-notifier"]

(Based on guideline 'Dockerfiles should use multi-stage builds')

[firstmatebot]

I analysed the failed pipeline job Validate docker:

Failure Analysis

The pipeline crashed during the Docker build step, specifically when trying to install git using the command apk add --no-cache git. The error logs indicate a permission issue:

ERROR: Unable to lock database: Permission denied
ERROR: Failed to open apk database: Permission denied

This suggests that the RUN command is being executed as a non-root user (appuser), which does not have the necessary permissions to install packages. The relevant part of the Dockerfile is:

USER appuser
RUN apk add --no-cache git

Suggested Fix

To resolve this issue, you can switch back to the root user before running the apk add command and then switch back to appuser afterward. Modify the Dockerfile as follows:

- USER appuser
+ USER root
RUN apk add --no-cache git
+ USER appuser

This change allows the installation of git with the required permissions while maintaining the application’s security by running the application as a non-root user afterward.