[jira] [Commented] (AIRFLOW-3718) Make official Airflow Image multi-layered

["ASF GitHub Bot (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/AIRFLOW-3718?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16744469#comment-16744469 ] 

ASF GitHub Bot commented on AIRFLOW-3718:
-----------------------------------------

potiuk commented on pull request #4543: [AIRFLOW-3718] Multi-layered version of the docker image
URL: https://github.com/apache/airflow/pull/4543
 
 
   ### Jira
   
   - [x] My PR addresses the following [Airflow Jira](https://issues.apache.org/jira/browse/AIRFLOW/) issues and references them in the PR title. For example, "\[AIRFLOW-XXX\] My Airflow PR"
     - https://issues.apache.org/jira/browse/AIRFLOW-3718
   
   ### Description
   
   - [x] Here are some details about my PR, including screenshots of any UI changes:
   
   Current official Airflow image is rebuilt from the scratch every time new commit is done to the repo. It is a "mono-layered" one and does not use Docker's multi-layer architecture.
   
   This means that builds take longer and that users downloading the image regularly will always download full image. With multi-layered approach and caching enabled in Docker Hub we can optimise it to download only the layers that changed.
   
   ### Tests
   
   - [x] No tests for the image so far.
   
   ### Commits
   
   - [x] My commits all reference Jira issues in their subject lines, and I have squashed multiple commits if they address the same issue. In addition, my commits follow the guidelines from "[How to write a good git commit message](http://chris.beams.io/posts/git-commit/)":
     1. Subject is separated from body by a blank line
     1. Subject is limited to 50 characters (not including Jira issue reference)
     1. Subject does not end with a period
     1. Subject uses the imperative mood ("add", not "adding")
     1. Body wraps at 72 characters
     1. Body explains "what" and "why", not "how"
   
   ### Documentation
   
   - [x] No docs
   ### Code Quality
   
   - [x] Passes `flake8`
   
 
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> Make official Airflow Image multi-layered
> -----------------------------------------
>
>                 Key: AIRFLOW-3718
>                 URL: https://issues.apache.org/jira/browse/AIRFLOW-3718
>             Project: Apache Airflow
>          Issue Type: Improvement
>            Reporter: Jarek Potiuk
>            Priority: Major
>
> Current official Airflow image is rebuilt from the scratch every time new commit is done to the repo. It is a "mono-layered" one and does not use Docker's multi-layer architecture.
> This means that builds take longer and that users downloading the image regularly will always download full image. With multi-layered approach and caching enabled in Docker Hub we can optimise it to download only the layers that changed.



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