refactoring

Author: shcherbak

README.md

@@ -1,3 +1,20 @@
 # keepup-helm-scraper
 
-## TO DO
+## Helm Repository
+
+```bash
+helm repo add keepup-helm-scraper https://code-tool.github.io/keepup-helm-scraper/
+```
+
+Set mandatory variables
+```yaml
+env:
+  CLUSTER_NAME: 'unique-name-for-metrics-labels'
+  API_URL: 'https://keepup.host/helm-cluster'
+  API_TOKEN: 'api-token-to-access-the-API_URL'
+```
+
+Deploy
+```bash
+helm install keepup-helm-scraper/keepup-helm-scraper
+```

charts/helm-scraper/templates/clusterrolebinding.yaml

@@ -1,5 +1,6 @@
 apiVersion: v2
-name: helm-scraper
+name: keepup-helm-scraper
 description: A Helm chart for scrape charts release information.
 type: application
 version: 0.1.0
+appVersion: 0.1.0

charts/helm-scraper/templates/serviceaccount.yaml

@@ -1,8 +1,10 @@
+{{- if .Values.rbac.create }}
 apiVersion: rbac.authorization.k8s.io/v1
 kind: ClusterRole
 metadata:
-  name: scraper-role
+  name: {{ .Release.Name }}
 rules:
   - apiGroups: [""]
     resources: ["namespaces", "secrets"]
-    verbs: ["get", "list"]
+    verbs: ["get", "list"]
+{{- end }}

charts/helm-scraper/values.yaml

@@ -0,0 +1,14 @@
+{{- if .Values.rbac.create }}
+apiVersion: rbac.authorization.k8s.io/v1
+kind: ClusterRoleBinding
+metadata:
+  name: {{ .Release.Name }}
+subjects:
+  - kind: ServiceAccount
+    name: {{ .Release.Name }}
+    namespace: {{ .Release.Namespace }}
+roleRef:
+  kind: ClusterRole
+  name: {{ .Release.Name }}
+  apiGroup: rbac.authorization.k8s.io
+{{- end }}

charts/helm-scraper/.helmignore renamed to charts/keepup-helm-scraper/.helmignore

@@ -1,8 +1,7 @@
 apiVersion: batch/v1
 kind: CronJob
 metadata:
-  name: helm-release-scraper
-  namespace: default
+  name: {{ .Release.Name }}
 spec:
   schedule: "{{ .Values.cronjob.schedule }}"
   successfulJobsHistoryLimit: 3
@@ -11,16 +10,18 @@ spec:
     spec:
       template:
         spec:
-          serviceAccountName: {{ .Values.serviceAccount.name }}
+          {{- if .Values.rbac.create }}
+          serviceAccountName: {{ .Release.Name }}
+          {{- end }}
           restartPolicy: {{ .Values.cronjob.restartPolicy }}
           containers:
             - name: helm-scraper
-              image: "{{ .Values.image.repository }}:{{ .Values.image.tag }}"
+              image: "{{ .Values.image.repository }}:{{ .Values.image.tag | default .Chart.AppVersion }}"
               imagePullPolicy: "{{ .Values.image.pullPolicy }}"
+              {{- if .Values.env }}
               env:
-                - name: CLUSTER_NAME
-                  value: "{{ .Values.cluster.name }}"
-                - name: API_URL
-                  value: "{{ .Values.api.url }}"
-                - name: API_TOKEN
-                  value: "{{ .Values.api.token }}"
+              {{- range $name, $value := .Values.env }}
+                - name: {{ $name }}
+                  value: {{ $value }}
+              {{- end }}
+              {{- end }}