Update Dockerfile to newest guideline image.

[WilmsJochen]

---

💡 Summary generated by FirstMate:

• Updated base image in Dockerfile from node:19-alpine to node:20-alpine
• Set environment variable PORT to 8080
• Defined working directory as /usr/src/app

[firstmatebot]

PR Review

⚠️ It seems that you can still improve the quality of your PR. Have a look into this:

   

❌ Docker & helm guidelines: Use multi-stage builds in Dockerfile to enhance security and reduce image size.

These are the improvements you should make:

• Dockerfile should use multi-stage builds: Consider using multi-stage builds to separate the build environment from the runtime environment, which can help reduce the final image size and improve security.

Dockerfile should use multi-stage builds

You are currently using a single-stage Dockerfile, which can lead to larger image sizes and potential security vulnerabilities. Implementing multi-stage builds will help separate the build environment from the runtime environment. Here's how you can refactor your Dockerfile:

# Build Stage
FROM node:20-alpine AS build
WORKDIR /usr/src/app
COPY package*.json ./
RUN npm install
COPY . .

# Production Stage
FROM node:20-alpine
ENV PORT 8080
WORKDIR /usr/src/app
COPY --from=build /usr/src/app ./
RUN addgroup -S usergroup && adduser -S -D -h /usr/app/src appuser usergroup
RUN chown -R appuser:usergroup /usr/app
USER appuser

EXPOSE 8080
CMD ["npm", "start", "--no-update-notifier"]

To improve your PR. Please make changes to these files:

• Dockerfile

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

[firstmatebot]

Some of the pipelines in this PR crashed. I did a quick analysis:

Failure Analysis

The pipeline crashed during the Docker build step due to the following error in the logs:

/bin/sh: apt-get: not found

This indicates that the apt-get command is not available in the Alpine-based Docker image (node:20-alpine). Alpine Linux uses apk for package management, not apt-get. The change in the PR that introduced apt-get update is the likely cause of the failure.

Suggested Fix

To resolve the issue, remove the line that attempts to use apt-get and ensure that all necessary packages are installed using apk. Update the Dockerfile as follows:

# Remove this line
# RUN apt-get update

# Ensure all necessary packages are installed with apk
RUN apk add --no-cache git

This change will allow the Docker build to proceed without errors.

[vincentdecl]

@firstmade can you fix it for me?

[vincentdecl]

@firstmate can you fix it?