Setup a custom update center and absolute URLs in update-center.json

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Martin d'Anjou

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Jan 28, 2021, 6:01:12 PM1/28/21
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Hello,

In the update-center.json file, it is full of absolute URLs for the plugin download links. So if I setup a custom update center, a mirror if you will, do I have to re-write all those URLs to point to my update center?

Example:

Thanks,
Martin

Olblak

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Jan 30, 2021, 4:46:24 AM1/30/21
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the update center and the mirror are two different things. the update center tells you what is available and where. In the case of the Jenkins project, it redirect you to get.jenkins.io which then redirect you to the closer mirror that contains what you need. If you rebuild your update center, you would be able to redefine those absolute URL, to redirect to the location you want, let say a specific mirror
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Martin d'Anjou

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Jan 30, 2021, 9:30:09 AM1/30/21
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Can you please define for me what "update center" means? Is it the update-center.json file (which is not a json file but rather json wrapped in something)? Or is it something more elaborate?

Thanks,
Martin

Gavin Mogan

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Jan 31, 2021, 3:46:24 AM1/31/21
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Its not really more elaborate. Update center is the script that powers update-center.json (wrapped) and update-center.actual.json (unwrapped). The file is signed so plugin manager in jenkins can verify the data (I don't know how it works, i just know it does).

You can run your own update center.There's some instructions at https://github.com/jenkins-infra/update-center2/#preparing-local-execution. You'll be able to override what you want, including download urls.

An other option would be to write some sort of lamba style service that takes in the update-center.actual.json file, removes the signing, and replaces the downloads link to whatever your preference is.

Gavin

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