postgres and redis container images anywhere but dockerhub

[BonzTM]

Hello,
Is it possible to pull or mirror the centos postgres and redis images anywhere but dockerhub? Perhaps mirrored on Quay?

I've deployed Quay into my cluster as a local mirror of many different repos. It functions well as a workaround for dockerhub api rate limiting, until Quay itself fails to come up due to dockerhub rate limiting.

[flavianmissi]

Hi @BonzTM, maybe this helps? https://docs.projectquay.io/deploy_quay_on_openshift_op_tng.html#operator-customize-images

[BonzTM]

Hi @BonzTM, maybe this helps? https://docs.projectquay.io/deploy_quay_on_openshift_op_tng.html#operator-customize-images

Hello,
This does help, however it is noted: Using this mechanism is not supported for production Quay environments and is strongly encouraged only for development/testing purposes. There is no guarantee your deployment will work correctly when using non-default images with the Quay Operator.

I do not wish for my production Quay instance to be subject to failure if I mis-type a tag, or fail to upgrade one of the container images with a Quay upgrade. If the default postgres and redis were hosted in a container registry that did not impose very low rate limitations, that would be ideal.

[dmesser]

If you are running on OpenShift, you can use ImageContentSourcePolicy to redirect those image pulls for redis and postgres to your own mirror of those images.

[BonzTM]

If you are running on OpenShift, you can use ImageContentSourcePolicy to redirect those image pulls for redis and postgres to your own mirror of those images.

Thanks Dan,
I have done this as a workaround with the overrides and locally mirrored ImageStreams for now. I am running OKD at home. I will keep on top of the images as the Quay operator advances in version and handle this each time if necessary.

While I think the best solution is to host the centos-redis and centos-postgres images on a different mirror to rid ourselves of the requirements of DockerHub for this operator; if this workaround is the official solution, consider my complaints resolved.

[dmesser]

The operator is packaged following a philosophy from the OpenShift Container Platform, which is to:

• hard code container image references and not get those from external configuration
• refer to the image references via digests

Both concepts allow to reason about the content you are getting and that the component is pulling at runtime, although it makes it a little harder to get the images from somewhere else.

[BonzTM]

The operator is packaged following a philosophy from the OpenShift Container Platform, which is to:

• hard code container image references and not get those from external configuration
• refer to the image references via digests

Both concepts allow to reason about the content you are getting and that the component is pulling at runtime, although it makes it a little harder to get the images from somewhere else.

Dan,
Postgres v10 (and newer) and Redis (v5) are hosted on Quay.io already. Is there a reason to not use those and continue pulling from dockerhub?

https://quay.io/repository/centos7/postgresql-10-centos7
https://quay.io/repository/centos7/redis-5-centos7

[dmesser]

We could certainly look into that.