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Feliz
Mission Specialist
Mission Specialist
  • 919 Views

DO374 - Why podman build instead of ansilbe-builder build

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On DO374 (Developing Advanced Automation with AAP 2.0), there's a practice of modifying Containerfile to perform some commands e.g. inserting cert file to the image. Then it asks us to build the EE using podman build.

I find this strange, as ansible-builder build command is the better way. We don't have to edit Containerfile as well. We can just use below on the EE spec file.

additional_build_steps:
  prepend:
    - RUN echo 'First do something here'
  append:
    - RUN echo 'Then do something else here'
 
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CliffordW
Cadet
Cadet
  • 824 Views

Hi there,

I totally agree that doing this in the execution-environment.yml file makes more sense. I guessing there might be cases where custom changes to Containerfile might be required, though.

I read that part of the course as just pointing out that running "ansible-builder build" overwrites any changes to Containerfile, so if you make changes there, you need to use "podman build" instead.

Regards,

Clifford

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2 Replies
CliffordW
Cadet
Cadet
  • 825 Views

Hi there,

I totally agree that doing this in the execution-environment.yml file makes more sense. I guessing there might be cases where custom changes to Containerfile might be required, though.

I read that part of the course as just pointing out that running "ansible-builder build" overwrites any changes to Containerfile, so if you make changes there, you need to use "podman build" instead.

Regards,

Clifford

Feliz
Mission Specialist
Mission Specialist
  • 813 Views

I agree. Ansible-builder will overwrite ContainerFile so any special custom commands in there will be wiped out and there's where "podman build" should be used.

It's just strange that the course is not pointing this out and "ansible-builder build" is not being practiced to actually build the EE and only used to initialize the ContainerFile.

The course should be updated. I'm guessing majority of users out there (who never see the course) will use "ansible-builder build" command.

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