# Latest documentation/guide rancher compatible cert-manager

**URL:** <https://forums.suse.com/t/latest-documentation-guide-rancher-compatible-cert-manager/16594>\
**Category:** SUSE Rancher Prime\
**Created:** [February 16, 2020, 5:02pm UTC](https://forums.suse.com/t/latest-documentation-guide-rancher-compatible-cert-manager/16594 "2020-02-16T17:02:01Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![fjoesne](https://sea2.discourse-cdn.com/flex022/user_avatar/forums.suse.com/fjoesne/32/1625_2.png) [@fjoesne](https://forums.suse.com/u/fjoesne)\
**Post date:** [February 16, 2020, 5:02pm UTC](https://forums.suse.com/t/latest-documentation-guide-rancher-compatible-cert-manager/16594/1 "2020-02-16T17:02:01Z")

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I have been looking into various posts and I can’t make it work. one [guide](https://medium.com/@mathias.seiler/how-i-upgraded-cert-manager-in-rancher-2-2-8-to-avoid-being-blocked-by-lets-encrypt-22c8556633e5) have apiVersion “[certmanager.k8s.io/v1alpha1](http://certmanager.k8s.io/v1alpha1)” and then another discussion tells me that this has [changed](https://github.com/jetstack/cert-manager/issues/2020#issuecomment-550214442)

Right now my rancher-cluster has become a complete mess because I have been trying various configurations, all of which has failed. I guess I have to rebuild everything from scratch again, but I’d like to know if there is a “right” way to do this before I give it another go?

Is there a guide that is up to date and works with rancher 2.3.5 at this point?

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**Author:** ![2stacks](https://sea2.discourse-cdn.com/flex022/user_avatar/forums.suse.com/2stacks/32/5067_2.png) [@2stacks](https://forums.suse.com/u/2stacks)\
**Post date:** [February 21, 2020, 12:29am UTC](https://forums.suse.com/t/latest-documentation-guide-rancher-compatible-cert-manager/16594/2 "2020-02-21T00:29:53Z")

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Its definitely a moving target and I’ve also written about it and updated a few times [here](https://www.2stacks.net/blog/rancher-2-and-letsencrypt/).

The API has definitely changed according to the [API Docs](https://cert-manager.io/docs/reference/api-docs/).

If I were starting fresh I would use helm and follow these docs [https://cert-manager.io/docs/installation/kubernetes/](https://cert-manager.io/docs/installation/kubernetes/) and [https://cert-manager.io/docs/configuration/acme/](https://cert-manager.io/docs/configuration/acme/).

I hope to have time someday to stay on top of the changes.