Using Machines how to create image?

Questions / Help
1

Hey guys,

This might be a bit of a noob question but when using Machines one must provide an image. How do I obtain the URL to put there? I dont want to publicly share my image on DockerHub…

Cheers,

2

Create an app and push your image to the fly registry with the app name as image name.

3

To be clear im trying to follow the Terraform with Machines tutorial here: Getting started with Machines and Terraform · Fly Docs

So you are saying to get the image to use in Terraform I must first create an app? I was hoping I could simply do terraform init terraform apply and have it work…

4

The image defined there needs to be publicly available without authentication, or be pushed into’s Fly’s registry.

Terraform isn’t great at the part. Packer can do that!

Alternatively, Terraform has a “local exec” resource you can use to run arbitrary commands, which can let you push a docker image to Fly’s registry using fly auth docker followed by docker push…

There might be a better way I don’t know about!

5

Not a better way, but a way that I use:

# create fly app if non existent
flyctl apps create --name <app-name> --org <org-name> 

# also: --local-only instead of --remote-only
flyctl deploy --build-only --remote-only --dockerfile /path/to/dockerfile --push --image <img-label> -a <app-name>

# the image to use can be referenced with url:
# registry.fly.io/<app-name>:<img-label>

see also, its dual: Pulling the Container - #3 by eli

6

I found this helpful when faced with the same issue of not wanted to make our image public. Tag it and then push it to the your apps private repo.

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7

This is exactly what I was looking for thanks!

This should be in the official docs :slight_smile:

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8

Recently a commit went in that now lets one build and run a machine with a single cmd (notice the . after m run and specify a path to the --dockerfile):

flyctl m run . --dockerfile </path/to/file> ...
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