Helmfile: Helm 3

Created on 26 Apr 2018 · 14Comments · Source: roboll/helmfile

I got to know that Helm v3 design is being documented at https://github.com/kubernetes-helm/community/tree/master/helm-v3 today.
I believe we can learn from it to better shape helmfile's direction.

At glance, Lua and library charts seems interesting. I had also heard that helm v3 is planned to allow another template engines other than sprig, but the reference is nowhere yet.

Source

mumoshu

👍10

Most helpful comment

Thanks for reporting! Okay then I'll implement a helm-v3 adapter and probably add helmfile --enable-helm-v3-mode that turns it on. That way, we can start testing it, find bugs on both upstream and helmfile, and gradually improve it.

mumoshu on 6 Jun 2019

👍6

All 14 comments

There is an alpha release of Helm 3.0.

Feature list is pretty neat. I believe that the most significant one from helmfile perspective is release names incapsulation to a namespace. It basically allows you to install same helmfile into multiple namespaces of single cluster. Also, there are some minor CLI command changes that helmfile could support.

Any thoughts on implementation? Should helmfile be compartible with both major versions of helm?

AnatolyRugalev on 5 Jun 2019

Any thoughts on implementation? Should helmfile be compartible with both major versions of helm?

Definitely :)

mumoshu on 5 Jun 2019

Any thoughts on implementation?

Hopefully it's matter of adding helm of v3 to $PATH so that helmfile picks it up, and helm v3 has remains backward-compatible in term of CLI so that helmfile works without any prob.

mumoshu on 5 Jun 2019

I'm going to do manual testing of helmfile + helm 3 and will let you know about results. In a meantime we could include helm 3 as an optional step in CI pipeline to ensure it works properly. I don't know how it's done but probably I can figure it out if no one will step in.

AnatolyRugalev on 5 Jun 2019

@AnatolyRugalev note there was a major bug (changing values didn't work!) that was recently fixed so isn't yet released: https://github.com/helm/helm/pull/5824

manics on 5 Jun 2019

@manics thanks for pointing this out. Will use dev-v3 branch for the time being.

AnatolyRugalev on 5 Jun 2019

Sadly, CLI is not fully backwards compartible.

I made a quick run over helmfile CLI commands with simple helmfile.yaml and found this issues:

--purge flag of helm delete command does not exist anymore
helm list now requires -f, --filter flag to use filtering. As a result helmfile delete doesn't work
helmfile diff complains about unknown --kube-context flag. Possibly, related to helm diff itself
--name flag of helm template command does not exist anymore. helm template [--name] -> helm template [NAME]
--timeout flag of helm test does not exist anymore