How have you used Docker in your last project, and what tasks did you solve with its help?

In my last project, I used Docker for containerizing the application and simplifying the deployment process. The main tasks I addressed with Docker:

• Environment isolation: all dependencies and configurations of the application were packaged into a container, which eliminated compatibility issues across different machines.
• Simplified deployment: Docker images allowed for quick deployment of the application on a server or in the cloud.
• Test automation: running tests inside a container ensured consistent conditions for all runs.

Example Dockerfile:

FROM node:14
WORKDIR /app
COPY package*.json ./
RUN npm install
COPY . .
CMD ["npm", "start"]

This approach sped up development and increased the stability of the application.