[Solved] Given this Dockerfile snippet for a Remix app:FROM node:18-alpine WORKDIR /app COPY package.json .... CMD ["npm", "run", "start"]What happens when you build and run this container? | Remix

Remix - Deployment

Given this Dockerfile snippet for a Remix app:

FROM node:18-alpine
WORKDIR /app
COPY package.json .
RUN npm install
COPY . .
CMD ["npm", "run", "start"]

What happens when you build and run this container?

AThe Remix app installs dependencies and starts running inside the container

BThe container only copies files but does not install dependencies

CThe app starts without installing dependencies, causing errors

DThe container fails because WORKDIR is missing

Step-by-Step Solution

Solution:

Step 1: Analyze Dockerfile commands
It sets node 18 alpine image, sets /app as working directory, copies package.json, runs npm install, copies all files, then runs npm start.
Step 2: Understand container behavior
Dependencies install before copying app code, then app starts correctly inside container.
Final Answer:
The Remix app installs dependencies and starts running inside the container -> Option A
Quick Check:
npm install runs before start = C [OK]

Quick Trick: Check RUN npm install before CMD to confirm dependencies installed [OK]

Common Mistakes:

MISTAKES

Master "Deployment" in Remix

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