Deploy finished Docker Image instead of re-building it | Railway | Page 1

brittle swan Apr 10, 2023, 9:19 AM

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I am using Railway to host a Showcase for a Add-on project I made. So far I always used the railway up command in the CI on GitHub and it somehow worked to get the app running. However I already build and deploy a Docker image to GitHub and find it a little bit useless to re-build the whole container for this purpose. Also I need to build the Maven project before the actual Docker build so that the required artifact is available and for some reason this does not work any longer.

So - is there a possibility to deploy a finalized Docker Image using Railway?

Project ID : 623ba24d-b5d8-438f-8db4-9e0da9e99b24

crisp briarBOT Apr 10, 2023, 9:19 AM

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Project ID: 623ba24d-b5d8-438f-8db4-9e0da9e99b24

eternal chasm Apr 10, 2023, 3:22 PM

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current work around would be using a dockerfile and just have it run the prebuilt image

brittle swan Apr 16, 2023, 1:05 PM

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Hmm, not sure if I completely understand this ... You mean creating a separate Dockerfile for Railway that pulls the compiled Docker image from my Github, extracts the content and starts it manually? 🤔

eternal chasm Apr 16, 2023, 4:48 PM

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like this type of thing

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https://github.com/railwayapp-templates/vaultwarden/blob/main/Dockerfile

brittle swan Apr 16, 2023, 7:25 PM

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Oh well that's quite easy, thanks for the hint 🙂

eternal chasm Apr 16, 2023, 8:29 PM

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no problem!

brittle swan Apr 16, 2023, 8:56 PM

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One more quick question 🙈 Is it somehow possible to modify a env var via the railway CLI?

Background: The whole railway deployment runs in GitHub workflows and I would like to make the image tag configurable ideally so that I do not have to stick to "latest", even though this is most probably the most common use case.

I found this documentation which suggests that railway variables add worked back then but now seems deprecated.

Railway Docs

CLI | Railway Docs

Documentation for Railway

eternal chasm Apr 16, 2023, 9:41 PM

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railway variables just prints the environment variables, to modify variables you'd have to use the api

eternal chasm Apr 16, 2023, 11:32 PM

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the variableUpsert mutation to be exact

brittle swan Apr 19, 2023, 10:20 AM

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Thanks! I was able to use the api to publish these vars into my Railway instance and also to configure them to be shared with my service. I just have the problem that for some reason the build tells me it cannot find my custom Dockerfile even though it is present at /showcase/Dockerfile-Railway. It just worked when I re-connected the repo to the service 🤷‍♂️

#Deploy finished Docker Image instead of re-building it