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♻️ Remove most references to Helm 2
This commit is contained in:
Jérôme Petazzoni
@@ -51,7 +51,7 @@
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- instructions indicating to users "please tweak this and that in the YAML"
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- That's where using something like
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[CUE](https://github.com/cuelang/cue/blob/v0.3.2/doc/tutorial/kubernetes/README.md),
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[CUE](https://github.com/cue-labs/cue-by-example/tree/main/003_kubernetes_tutorial),
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[Kustomize](https://kustomize.io/),
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or [Helm](https://helm.sh/) can help!
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@@ -86,8 +86,6 @@
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- On April 30th 2020, Helm was the 10th project to *graduate* within the CNCF
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🎉
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(alongside Containerd, Prometheus, and Kubernetes itself)
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- This is an acknowledgement by the CNCF for projects that
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@@ -99,6 +97,8 @@
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- See [CNCF announcement](https://www.cncf.io/announcement/2020/04/30/cloud-native-computing-foundation-announces-helm-graduation/)
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and [Helm announcement](https://helm.sh/blog/celebrating-helms-cncf-graduation/)
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- In other words: Helm is here to stay
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---
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## Helm concepts
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@@ -173,11 +173,13 @@ or `apt` tools).
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- Helm 3 doesn't use `tiller` at all, making it simpler (yay!)
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- If you see references to `tiller` in a tutorial, documentation... that doc is obsolete!
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---
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class: extra-details
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## With or without `tiller`
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## What was the problem with `tiller`?
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- With Helm 3:
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@@ -193,9 +195,7 @@ class: extra-details
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- This indirect model caused significant permissions headaches
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(`tiller` required very broad permissions to function)
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- `tiller` was removed in Helm 3 to simplify the security aspects
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- It also made it more complicated to embed Helm in other tools
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---
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@@ -222,59 +222,6 @@ class: extra-details
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---
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class: extra-details
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## Only if using Helm 2 ...
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- We need to install Tiller and give it some permissions
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- Tiller is composed of a *service* and a *deployment* in the `kube-system` namespace
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- They can be managed (installed, upgraded...) with the `helm` CLI
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.lab[
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- Deploy Tiller:
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```bash
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helm init
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```
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]
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At the end of the install process, you will see:
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```
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Happy Helming!
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```
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---
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class: extra-details
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## Only if using Helm 2 ...
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- Tiller needs permissions to create Kubernetes resources
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- In a more realistic deployment, you might create per-user or per-team
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service accounts, roles, and role bindings
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.lab[
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- Grant `cluster-admin` role to `kube-system:default` service account:
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```bash
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kubectl create clusterrolebinding add-on-cluster-admin \
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--clusterrole=cluster-admin --serviceaccount=kube-system:default
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```
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]
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(Defining the exact roles and permissions on your cluster requires
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a deeper knowledge of Kubernetes' RBAC model. The command above is
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fine for personal and development clusters.)
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---
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## Charts and repositories
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- A *repository* (or repo in short) is a collection of charts
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@@ -293,27 +240,7 @@ fine for personal and development clusters.)
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---
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class: extra-details
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## How to find charts, the old way
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- Helm 2 came with one pre-configured repo, the "stable" repo
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(located at https://charts.helm.sh/stable)
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- Helm 3 doesn't have any pre-configured repo
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- The "stable" repo mentioned above is now being deprecated
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- The new approach is to have fully decentralized repos
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- Repos can be indexed in the Artifact Hub
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(which supersedes the Helm Hub)
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---
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## How to find charts, the new way
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## How to find charts
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- Go to the [Artifact Hub](https://artifacthub.io/packages/search?kind=0) (https://artifacthub.io)
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@@ -409,24 +336,6 @@ Note: it is also possible to install directly a chart, with `--repo https://...`
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---
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class: extra-details
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## Searching and installing with Helm 2
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- Helm 2 doesn't have support for the Helm Hub
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- The `helm search` command only takes a search string argument
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(e.g. `helm search juice-shop`)
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- With Helm 2, the name is optional:
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`helm install juice/juice-shop` will automatically generate a name
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`helm install --name my-juice-shop juice/juice-shop` will specify a name
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---
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## Viewing resources of a release
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- This specific chart labels all its resources with a `release` label
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@@ -542,11 +451,11 @@ All unspecified values will take the default values defined in the chart.
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:EN:- Helm concepts
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:EN:- Installing software with Helm
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:EN:- Helm 2, Helm 3, and the Helm Hub
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:EN:- Finding charts on the Artifact Hub
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:FR:- Fonctionnement général de Helm
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:FR:- Installer des composants via Helm
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:FR:- Helm 2, Helm 3, et le *Helm Hub*
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:FR:- Trouver des *charts* sur *Artifact Hub*
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:T: Getting started with Helm and its concepts
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