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Which of the following is the correct syntax to tag a Docker image before pushing it in CI?

easy📝 Syntax Q3 of 15
Docker - in CI/CD
Which of the following is the correct syntax to tag a Docker image before pushing it in CI?
Adocker run source-image:tag target-image:tag
Bdocker push source-image:tag target-image:tag
Cdocker build source-image:tag target-image:tag
Ddocker tag source-image:tag target-image:tag
Step-by-Step Solution
Solution:

  1. Step 1: Understand tagging command

    Tagging uses 'docker tag' to rename or add a tag to an image.

  2. Step 2: Differentiate from other commands

    'docker push' uploads, 'docker build' creates, 'docker run' executes containers.

  3. Final Answer:

    docker tag source-image:tag target-image:tag -> Option D

  4. Quick Check:

    Tagging syntax = docker tag [OK]
Quick Trick: Tag images with 'docker tag' before pushing [OK]
Common Mistakes:
  • Using 'docker push' to tag
  • Confusing build with tag
  • Trying to run to tag images

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