add docker & api route

[wvl94]

💡 PR Summary generated by FirstMate

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

Changes:
Dockerfile:

• Created a Dockerfile to containerize the application using Node.js 19-alpine.
• Set environment variable for PORT and configured user permissions.

API Route Update:

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

Configuration Change:

• Updated appConfig.js to default server port to 80 instead of 8080.

TLDR: Introduced Docker support and a new API route for data retrieval; updated server port configuration. Focus on the Dockerfile and new route in exampleRouter.js.

_{^{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 in Dockerfile, 80 in appConfig.js).
    ❌ Security issues: Missing permission middleware on '/get/:id' route; add grantAccessByPermissionMiddleware.
    ❌ Docker best practices: Implement multi-stage builds in Dockerfile to optimize image size.

_{^{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 port in appConfig.js was changed to 80. This change seems important, so it might be smart to change the documentation accordingly.

For example, update the documentation to reflect the following:

## 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.

Configuration

The application runs on port 80 by default unless overridden by the PORT environment variable.

[firstmatebot]

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

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

This ensures proper access control for the endpoint.

(Based on guideline 'Routes should check permissions')

[firstmatebot]

Consider using multi-stage builds in your Dockerfile to optimize the build process and reduce the final image size. You can achieve this by separating the build and runtime environments like this:

FROM node:19-alpine AS build
WORKDIR /usr/src/app
COPY package*.json ./
RUN npm install
COPY . .

FROM node:19-alpine
WORKDIR /usr/src/app
COPY --from=build /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 attempting to install git using the command apk add --no-cache git. The error message indicates 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. This issue likely existed before the current PR changes, as the Dockerfile structure indicates that the USER appuser line precedes the apk add command.

Suggested Fix

To resolve the permission issue, you can switch back to the root user before running the apk add command and then switch back to appuser. 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 necessary permissions while maintaining the application’s security by running the application as a non-root user afterward.

[firstmatebot]

PR Review

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

    ❌ Documentation drift: Update documentation for default ports in Dockerfile and appConfig.js.
    ❌ Security issues: Missing permission middleware on '/get/:id' route.
    ❌ Docker best practices: Implement multi-stage builds in Dockerfile for optimization.

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

[firstmatebot]

You changed the default port for the application to 8080 in the Dockerfile. This change seems important, so it might be smart to change the documentation accordingly. Additionally, the default server port in appConfig.js has been changed to 80, which also needs to be documented.

Example snippet for documentation update:

## Running the Application

To start the application, use the following command:

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

The application runs on port 8080 by default.

[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]

Consider using multi-stage builds in your Dockerfile to optimize the image size and improve security by separating the build and runtime environments. Here's a basic structure you can follow:

# First stage: build
FROM node:19-alpine AS build
WORKDIR /usr/src/app
COPY package*.json ./
RUN npm install
COPY . .

# Second stage: runtime
FROM node:19-alpine
WORKDIR /usr/src/app
COPY --from=build /usr/src/app ./
EXPOSE 8080
CMD ["npm", "start", "--no-update-notifier"]

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