Update helm chart version and clarify helm-related docs

README.md

@@ -152,48 +152,27 @@ kubectl apply -f https://raw.githubusercontent.com/fluent/fluentbit-operator/mas
 
 #### Deploy Fluent Operator with Helm
 
-> Note: For the helm based install, Helm v3.2.1 or higher is needed.
+> NOTE: For the helm based install, Helm v3.2.1 or higher is needed.
 
-The Fluent Bit section of the Fluent Operator supports different CRI `docker`, `containerd`,  and `CRI-O`. 
-`containerd` and `CRI-O` use the `CRI Log` format which is different with `docker`, they requires additional parser to parse JSON application logs. You should set different `containerRuntime` depending on your container runtime.
-
-The default runtime is docker, you can choose other runtimes as follows.
-
-If your container runtime is `containerd` or  `cri-o`, you can set the `containerRuntime` parameter to `containerd` or `crio`. e.g.
+To install or upgrade Fluent Operator using Helm:
 
 ```shell
-helm install fluent-operator --create-namespace -n fluent charts/fluent-operator/  --set containerRuntime=containerd
-```
-
-Install through the online chart link:
+export FLUENT_OPERATOR_CONTAINER_RUNTIME="containerd" # or "cri-o", "docker" depending on the container runtime being used (see `values.yaml`)
 
-```shell
-helm install fluent-operator --create-namespace -n fluent https://github.com/fluent/fluent-operator/releases/download/< version >/fluent-operator.tgz
+helm repo add fluent https://fluent.github.io/helm-charts
+helm upgrade --install fluent-operator fluent/fluent-operator \
+  --create-namespace \ 
+  --set containerRuntime=${FLUENT_OPERATOR_CONTAINER_RUNTIME}
 ```
 
-> Please replace < version > with a actual version like v1.0.0
-
-Fluent Operator CRDs will be installed by default when running a helm install for the chart. But if the CRD already exists, it will be skipped with a warning. So make sure you install the CRDs by yourself if you upgrade your Fluent Operator version.
-
-By default the installation with Helm create all the CRDs (fluent-bit and fluentd ones).
-If you do not intent to use one of the two components, it is possible to skip its CRDs and also to not start the controllers for it in the operator.
-To achieve that `operator.disableComponentControllers` and `(fluent-bit/fluentd).crdsEnable` parameters can be provided:
+By default, all CRDs required for Fluent Operator will be installed.  To prevent `helm install` from installing CRDs, you can set `fluent-bit.crdsEnable` or `fluentd.crdsEnable` to `false`.  
 
-```shell
-helm install fluent-operator --create-namespace -n fluent charts/fluent-operator/  --set operator.disableComponentControllers=fluent-bit,fluent-bit.crdsEnable=false
-```
+Helm [does not manage the lifecycle of CRDs](https://helm.sh/docs/chart_best_practices/custom_resource_definitions/), so if the Fluent Operator CRDs already exist, subsequent 
+chart upgrades will not add or remove CRDs even if they have changed.  During upgrades, users should manually update CRDs:
 
-> Note: During the upgrade process, if a CRD was previously created using the create operation, an error will occur during the apply operation. Using apply here allows the CRD to be replaced and created in its entirety in a single operation.
-
-To replace the CRDs pull the current helm chart:
 ```
 wget https://github.com/fluent/fluent-operator/releases/download/<version>/fluent-operator.tgz
 tar -xf fluent-operator.tgz
-```
-
-To update the CRDs, run the following command:
-
-```shell
 kubectl replace -f fluent-operator/crds
 ```
 

RELEASE.md

@@ -118,3 +118,10 @@ Finally, create a new release:
 - Add file `setup.yaml` from `manifests/setup/setup.yaml` and then click "Publish release".
 
 For patch releases, cherry-pick the commits from the release branch into the master branch.
+
+### Publish updated Helm chart
+
+This repo includes a "development" chart in the [charts/](./charts/fluent-operator/) directory.  For each release, this chart must be published to the [fluent/helm-charts](https://github.com/fluent/helm-charts/tree/main/charts/fluent-operator/) repository which is where Fluent Operators install the chart from.  This is currently a manual process.  Follow these instructions to update and publish the chart:
+
+* Bump `version` and `appVersion` in the [charts/fluet-operator/Chart.yaml](./charts/fluent-operator/Chart.yaml) file in this repo
+* Manually "sync" (copy, open a PR) the local [chart](./charts/fluent-operator) to [fluent/helm-charts](https://github.com/fluent/helm-charts/tree/main/charts/fluent-operator/)

charts/README.md

@@ -0,0 +1 @@
+The Helm charts in this directory are considered "development" and are [synced](../RELEASE.md) to the [fluent/helm-charts](https://github.com/fluent/helm-charts/tree/main/charts/fluent-operator/) repository for each release.  Users are instructed to install the Fluent Operator Helm chart from the [fluent/helm-charts](https://github.com/fluent/helm-charts/tree/main/charts/fluent-operator/) repo.

charts/fluent-operator/Chart.yaml

@@ -1,31 +1,26 @@
 apiVersion: v2
 name: fluent-operator
-description: A Helm chart for Kubernetes
-
-# A chart can be either an 'application' or a 'library' chart.
-#
-# Application charts are a collection of templates that can be packaged into versioned archives
-# to be deployed.
-#
-# Library charts provide useful utilities or functions for the chart developer. They're included as
-# a dependency of application charts to inject those utilities and functions into the rendering
-# pipeline. Library charts do not define any templates and therefore cannot be deployed.
-# type: application
-
-# This is the chart version. This version number should be incremented each time you make changes
-# to the chart and its templates, including the app version.
-# Versions are expected to follow Semantic Versioning (https://semver.org/)
-version: 3.1.0
-
-# This is the version number of the application being deployed. This version number should be
-# incremented each time you make changes to the application. Versions are not expected to
-# follow Semantic Versioning. They should reflect the version the application is using.
-appVersion: 3.1.0
-
+description: Fluent Operator provides great flexibility in building a logging layer based on Fluent Bit and Fluentd.
+keywords:
+  - logging
+  - fluent-bit
+  - fluentd
+  - operator
+version: 3.2.0
+appVersion: 3.2.0
+icon: https://raw.githubusercontent.com/fluent/fluent-operator/master/docs/images/fluent-operator-icon.svg
+home: https://www.fluentd.org/
+sources:
+  - https://github.com/fluent/fluent-operator
+maintainers:
+  - name: wenchajun
+    email: [email protected]
 dependencies:
   - name: fluent-bit-crds
-    repository: fluent-bit-crds
+    repository: "file://charts/fluent-bit-crds"
+    version: 3.2.0
     condition: fluentbit.crdsEnable
   - name: fluentd-crds
-    repository: fluentd-crds
-    condition: fluentd.crdsEnable
+    repository: "file://charts/fluentd-crds"
+    version: 3.2.0
+    condition: fluentd.crdsEnable