feat: helm chart for the new operator (#621)

Was generated with the Helmify tool from the manifests generated by the
operator SDK.

Makefile

@@ -307,6 +307,17 @@ catalog-build: opm ## Build a catalog image.
 catalog-push: ## Push a catalog image.
 	$(MAKE) docker-push IMG=$(CATALOG_IMG)
 
+
+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/default | $(HELMIFY) helm-chart/amalthea-sessions
+
 ##@ Kopf
 
 .PHONY: crd

chartpress.yaml

@@ -12,3 +12,16 @@ charts:
         contextPath: .
         dockerfilePath: kopf.Dockerfile
         valuesPath: image
+  - name: helm-chart/amalthea-sessions
+    resetTag: latest
+    imagePrefix: renku/
+    repo:
+      git: SwissDataScienceCenter/helm-charts
+      published: https://swissdatasciencecenter.github.io/helm-charts
+    paths:
+      - .
+    images:
+      amalthea-sessions:
+        contextPath: .
+        dockerfilePath: Dockerfile
+        valuesPath: controllerManager.manager.image

cmd/main.go

@@ -29,6 +29,7 @@ import (
 	utilruntime "k8s.io/apimachinery/pkg/util/runtime"
 	clientgoscheme "k8s.io/client-go/kubernetes/scheme"
 	ctrl "sigs.k8s.io/controller-runtime"
+	"sigs.k8s.io/controller-runtime/pkg/cache"
 	"sigs.k8s.io/controller-runtime/pkg/healthz"
 	"sigs.k8s.io/controller-runtime/pkg/log/zap"
 	metricsserver "sigs.k8s.io/controller-runtime/pkg/metrics/server"
@@ -94,6 +95,20 @@ func main() {
 		TLSOpts: tlsOpts,
 	})
 
+	clusterScoped := os.Getenv("CLUSTER_SCOPED") == "true"
+	releaseNamespace := os.Getenv("RELEASE_NAMESPACE")
+	if releaseNamespace == "" {
+		releaseNamespace = "default"
+	}
+	cacheOptions := cache.Options{
+		DefaultNamespaces: map[string]cache.Config{releaseNamespace: {}},
+	}
+	if clusterScoped {
+		cacheOptions = cache.Options{
+			DefaultNamespaces: nil,
+		}
+	}
+
 	mgr, err := ctrl.NewManager(ctrl.GetConfigOrDie(), ctrl.Options{
 		Scheme: scheme,
 		Metrics: metricsserver.Options{
@@ -116,6 +131,7 @@ func main() {
 		// if you are doing or is intended to do any operation such as perform cleanups
 		// after the manager stops then its usage might be unsafe.
 		// LeaderElectionReleaseOnCancel: true,
+		Cache: cacheOptions,
 	})
 	if err != nil {
 		setupLog.Error(err, "unable to start manager")

helm-chart/amalthea-sessions/.helmignore

@@ -0,0 +1,23 @@
+# Patterns to ignore when building packages.
+# This supports shell glob matching, relative path matching, and
+# negation (prefixed with !). Only one pattern per line.
+.DS_Store
+# Common VCS dirs
+.git/
+.gitignore
+.bzr/
+.bzrignore
+.hg/
+.hgignore
+.svn/
+# Common backup files
+*.swp
+*.bak
+*.tmp
+*.orig
+*~
+# Various IDEs
+.project
+.idea/
+*.tmproj
+.vscode/

helm-chart/amalthea-sessions/Chart.yaml

@@ -0,0 +1,21 @@
+apiVersion: v2
+name: amalthea-sessions
+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: 0.1.0
+# 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.
+# It is recommended to use it with quotes.
+appVersion: "0.1.0"

helm-chart/amalthea-sessions/templates/_helpers.tpl

@@ -0,0 +1,62 @@
+{{/*
+Expand the name of the chart.
+*/}}
+{{- define "amalthea-sessions.name" -}}
+{{- default .Chart.Name .Values.nameOverride | trunc 63 | trimSuffix "-" }}
+{{- end }}
+
+{{/*
+Create a default fully qualified app name.
+We truncate at 63 chars because some Kubernetes name fields are limited to this (by the DNS naming spec).
+If release name contains chart name it will be used as a full name.
+*/}}
+{{- define "amalthea-sessions.fullname" -}}
+{{- if .Values.fullnameOverride }}
+{{- .Values.fullnameOverride | trunc 63 | trimSuffix "-" }}
+{{- else }}
+{{- $name := default .Chart.Name .Values.nameOverride }}
+{{- if contains $name .Release.Name }}
+{{- .Release.Name | trunc 63 | trimSuffix "-" }}
+{{- else }}
+{{- printf "%s-%s" .Release.Name $name | trunc 63 | trimSuffix "-" }}
+{{- end }}
+{{- end }}
+{{- end }}
+
+{{/*
+Create chart name and version as used by the chart label.
+*/}}
+{{- define "amalthea-sessions.chart" -}}
+{{- printf "%s-%s" .Chart.Name .Chart.Version | replace "+" "_" | trunc 63 | trimSuffix "-" }}
+{{- end }}
+
+{{/*
+Common labels
+*/}}
+{{- define "amalthea-sessions.labels" -}}
+helm.sh/chart: {{ include "amalthea-sessions.chart" . }}
+{{ include "amalthea-sessions.selectorLabels" . }}
+{{- if .Chart.AppVersion }}
+app.kubernetes.io/version: {{ .Chart.AppVersion | quote }}
+{{- end }}
+app.kubernetes.io/managed-by: {{ .Release.Service }}
+{{- end }}
+
+{{/*
+Selector labels
+*/}}
+{{- define "amalthea-sessions.selectorLabels" -}}
+app.kubernetes.io/name: {{ include "amalthea-sessions.name" . }}
+app.kubernetes.io/instance: {{ .Release.Name }}
+{{- end }}
+
+{{/*
+Create the name of the service account to use
+*/}}
+{{- define "amalthea-sessions.serviceAccountName" -}}
+{{- if .Values.serviceAccount.create }}
+{{- default (include "amalthea-sessions.fullname" .) .Values.serviceAccount.name }}
+{{- else }}
+{{- default "default" .Values.serviceAccount.name }}
+{{- end }}
+{{- end }}