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I'm trying to proxy a private Google Container Registry with Nexus 3 Repository OSS. Not sure how to do the authentication bit.

I found a suggestion for Artifactory:

  1. Create a new Docker remote registry repository
  2. Uncheck the Enable Token Authentication flag
  3. Set the URL as https://gcr.io
  4. Under the advanced tab, set the username as _json_key​
  5. Under the advanced tab, set the password to the contents of the JSON Key File

Did not work with Nexus.

Any advice maybe pls ?

FreshMike
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  • Having the same issue. I do know it's possible with other products, see for example https://jfrog.com/knowledge-base/how-proxy-a-google-container-registry-gcr/. There are some reported bugs that come up if you search Nexus issues for "GCR" or "ACR" (eg. https://issues.sonatype.org/browse/NEXUS-19102), so it *might* have something to do with your version of Nexus. – margold Apr 23 '20 at 12:12
  • You should also check what's in the Nexus logs. – margold Apr 23 '20 at 12:28

1 Answers1

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You need to use a service account with an API Key in order to authenticate, take a look into this blog that shows how to create the private registry with Google container registry and Nexus OSS.

Agustin Lopez
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  • Hi, I know that, but the example shows how to deploy Nexus on Google. I have Nexus on prem and would like to configure it to proxy a Private Google Container Registry into Nexus. I have a google service account and the key. now how do I configure the authentication bit in nexus to link to gcr ? – FreshMike Jan 21 '20 at 11:05
  • I'm not sure how does Nexus authenticate , however, I believe that these authentication methods https://cloud.google.com/container-registry/docs/advanced-authentication should work with it. – Agustin Lopez Jan 21 '20 at 16:34