helm

Create Helm chart

With helmify, you can create a helm chart

Update Makefile

HELMIFY ?= $(LOCALBIN)/helmify

.PHONY: helmify
helmify: $(HELMIFY) ## Download helmify locally if necessary.
$(HELMIFY): $(LOCALBIN)
    test -s $(LOCALBIN)/helmify || GOBIN=$(LOCALBIN) go install github.com/arttor/helmify/cmd/helmify@latest

helm: manifests kustomize helmify
    $(KUSTOMIZE) build config/install | $(HELMIFY)

Run
```
make helm
```

Check generated files

chart
├── Chart.yaml
├── templates
│   ├── _helpers.tpl
│   ├── deployment.yaml
│   ├── leader-election-rbac.yaml
│   ├── manager-config.yaml
│   ├── manager-rbac.yaml
│   ├── metrics-reader-rbac.yaml
│   ├── metrics-service.yaml
│   ├── mysql-crd.yaml
│   ├── mysqldb-crd.yaml
│   ├── mysqluser-crd.yaml
│   └── proxy-rbac.yaml
└── values.yaml

1 directory, 13 files

Update name in chart/Chart.yaml
```
name: mysql-operator
```
Update chart/templates/deployment.yaml for your purpose What we do here is basically to enable to change Deployment from Values. (ref: #199)
Package
```
helm package chart --app-version v0.2.0
```
The command will generate mysql-operator-0.1.0.tgz

Publish package to Helm chart repo.

https://github.com/nakamasato/helm-charts is used for repo. All we need to do is to update the chart source file under charts/mysql-operator in the repo.

We use GitHub Actions to update the repo.

Install mysql-operator with the Helm chart (from local source file)

Install mysql-operator with helm

helm install mysql-operator-0.1.0.tgz --generate-name

Optionally, you can add --set adminUserSecretType=gcp --set gcpProjectId=$PROJECT_ID to use GCP SecretManager to get AdminUser and/or AdminPassword.

NAME: mysql-operator-0-1680907162
LAST DEPLOYED: Sat Apr  8 07:13:58 2023
NAMESPACE: default
STATUS: deployed
REVISION: 1
TEST SUITE: None

List

helm list

NAME                            NAMESPACE       REVISION        UPDATED                                 STATUS          CHART                   APP VERSION
mysql-operator-0-1680907162     default         1               2023-04-08 07:39:22.416055 +0900 JST    deployed        mysql-operator-0.1.0    v0.2.0

1. Check operator is running

kubectl get po
NAME                                                             READY   STATUS    RESTARTS   AGE
mysql-operator-0-1680907162-controller-manager-f9d855dc9-d4psm   0/1     Running   0          13s

1. (Optional) upgrade an existing release

helm upgrade mysql-operator-0-1680913123 $HELM_PATH --set adminUserSecretType=gcp --set gcpProjectId=$PROJECT_ID

1. Uninstall

helm uninstall mysql-operator-0-1680907162

Usage

Install with Helm

Development Tips

Check resulting yaml file
```
helm template chart
```