Can you share private images across projects?

[michael lovett]

We have created a private image with custom software on it, which we'd like to use as the basis for CE instances in various projects in our company.  So far, I can't see an easy way to use that one image to start instances in different projects and/or any way to copy that image to other projects.

Is anything like this possible?

Michael

[Faizan (Google Cloud Support)]

Hello Michael,

One way to move a custom image from project 1 to project 2 is by exporting it to Google Cloud Storage from project 1 and than importing in project 2. You can refer to these links[1][2] for steps and more information. Another workaround that I have tested is using gcloud commands, the steps are as following:

1. Make sure you have at least editor permissions in both the projects.

2. Run $ gcloud compute images describe IMAGE-NAME --project PROJECT1

3. From the output copy the url from 'selfLink' which will look like this "https://www.googleapis.com/compute/v1/projects/PROJECT/global/images/IMAGE"

4. Use gcloud to create an instance in project 2 using the image in project 1:

$ gcloud config set project <project-id-of-project-2>

$ gcloud compute instances create <name of instance> --image "https://www.googleapis.com/compute/v1/projects/PROJECT/global/images/IMAGE"

5. Once you have your instance created in project 2 you can create an image from your source disk. The steps are documented in this link link.

I hope that helps.

Faizan

[Shanmugam Kulandaivel]

Hi Michael -  We launched a new IAM role earlier this week that enables users to securely share images in one project with other users. 

You can find more information at https://cloud.google.com/compute/docs/images/sharing-images-across-projects

Thanks,

Shanmugam

[Tai Tran]

Hi Shanmaugam, is there a way once an image is shared with a project for the receiving project to import the image into their image list?

Thanks,

Tai

[Shanmugam Kulandaivel]

Hi Tai - not currently, but we are aware of the ask (being able to easily import an image that you have a access) and considering adding this feature.  I'll update the post as and when we have an update on this to share. 

May I ask what the scenario is? Why do you want to be able to clone a shared image into your images list? 

thanks

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[taix...@gmail.com]

Hi Shanmugam, We share images to different projects, but don’t want to maintain the images long term.  Ideally, the receiving project could clone the image so we could just delete it on this end.

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[Shanmugam Kulandaivel]

Thanks for the background. I'll update this post as and when we have an update on this request. 

Thanks

Shan

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