[GitHub] [camel-k] gansheer commented on issue #1656: jib builder

["gansheer (via GitHub)" <gi...@apache.org>]

gansheer commented on issue #1656:
URL: https://github.com/apache/camel-k/issues/1656#issuecomment-1431047647

   I spent some time getting to know the existing JIB plugins available. 
   
   The ones I found and tested are:
   * [Quarkus Container Extension Jib](https://quarkus.io/guides/container-image) (camel-k quarkus version) 
   * [Jkube Kubernetes Plugin](https://www.eclipse.org/jkube/docs/kubernetes-maven-plugin/) (version 1.10.1)
   * [Jib maven plugin](https://github.com/GoogleContainerTools/jib/tree/master/jib-maven-plugin) (version 3.3.1)
   * [Fabric8 docker plugin](https://dmp.fabric8.io/) (version 0.41.0)
   
   I did some build test using the following requirements :
   * build a container image containing the content from the /tmp/kit-xxxxxx-yyyyy/context instead of the default target folder ( /tmp/kit-xxxxxx-yyyyy/maven/target)
   * build incrementally the container images between multiple integration kits by having some influence on layer build
   * build the container image for different architectures (linux/am64, linux/arm64, etc)
   * producing a container image the most 
   
   The native build still needs to be tested but in the context of container image build is it also about a runner being made available in /tmp/kit-xxxxxx-yyyyy/context after the build phase, so it should be covered but the requirements.
   
   I put all my data here : https://github.com/gansheer/jib-work
   
   **Only two of the tested plugins validate all the requirements** : **Jib maven plugin** and **Fabric8 docker plugin**. Seeing the **Fabric8 docker plugin**'s version is 0.41.0, I feel the **Jib maven plugin** is the best choice.
   
   The **Jkube Kubernetes Plugin** is still a good candidate if it can add the multi-architecture support. I found it offers a lot of flexibility and also come with an Jkube Openshift Plugin built on top of Kubernetes Plugin that has s2i features.
   
   What I see as an implementation roadmap for the addition of a jib publish strategy would be:
   * implement a first version using the **Jib maven plugin** while discussing with the jkube projet to see if the multi-architecture can be added 
   * if (and hopefully when) the **Jkube Kubernetes Plugin** provides the multi-architecure feature, plan a migration to the JKuve plugin
   
   Last notes:
   * Java native build still need to be tested, particularly [the java native build PR](https://github.com/apache/camel-k/pull/4021).  
   * I didn't see anything incompatible with [the build decoupling discussions](https://github.com/apache/camel-k/issues/3831)
   
   Please don't hesitate to tell me your opinions on this and any additional inputs.
   
   cc @lburgazzoli @astefanutti @oscerd @claudio4j @christophd @tadayosi
   


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