Docker - Production Patterns
Which Docker command will correctly launch a new container named 'green_app' from the image 'app:v2' for the green environment?
Which Docker command will correctly launch a new container named 'green_app' from the image 'app:v2' for the green environment?
easy📝 Syntax Q3 of 15
Step-by-Step Solution
Solution:
Step 1: Identify the command to start a container
Use 'docker run' to create and start a container from an image.Step 2: Check the options
'-d' runs container in detached mode, '--name' assigns the container name.Final Answer:
docker run -d --name green_app app:v2 -> Option BQuick Check:
'docker run' creates and starts containers [OK]
Quick Trick: 'docker run' creates and starts containers [OK]
Common Mistakes:
- Using 'docker start' which only starts existing containers
- Confusing 'docker create' which doesn't start containers
- Using 'docker build' which builds images, not containers
Master "Production Patterns" in Docker
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