[Solved] Given this Dockerfile snippet in a CI/CD pipeline:FROM python:3.12-slim COPY . /app WORKDIR /app RUN pip install -r requirements.txt CMD ["python", "app.py"]What happens when the image runs? | Docker

Docker - in CI/CD

Given this Dockerfile snippet in a CI/CD pipeline:

FROM python:3.12-slim
COPY . /app
WORKDIR /app
RUN pip install -r requirements.txt
CMD ["python", "app.py"]

What happens when the image runs?

AIt installs Python 3.12 and runs app.py automatically.

BIt copies files but does not install dependencies.

CIt runs app.py without installing dependencies.

DIt fails because the WORKDIR is missing.

Step-by-Step Solution

Solution:

Step 1: Analyze the Dockerfile commands
The image uses Python 3.12, copies files to /app, sets /app as working directory, installs dependencies, and sets the command to run app.py.
Step 2: Understand the effect when running the container
When started, the container runs python app.py with dependencies installed.
Final Answer:
It installs Python 3.12 and runs app.py automatically. -> Option A
Quick Check:
Dockerfile installs dependencies and runs app.py = A [OK]

Quick Trick: RUN installs, CMD runs app [OK]

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