[stable/field-exporter]: field-exporter (#539)

* [stable/field-exporter]: field-exporter

* Fix requests

* fix docs

* Update version

stable/field-exporter/.helmignore

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+# 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/

stable/field-exporter/Chart.yaml

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+apiVersion: v2
+name: field-exporter
+description: |
+  A chart to install [field-exporter](https://github.com/deliveryhero/field-exporter). This controller is used to fill the gap in [k8s-config-connector](https://github.com/GoogleCloudPlatform/k8s-config-connector) for exporting value from Config Connector managed resources into Secrets and ConfigMaps.
+
+type: application
+version: 1.0.0
+appVersion: "v1.0.0"
+maintainers:
+  - name: vzholudev
+    email: [email protected]
+    url: https://github.com/vzholudev
+  - name: mtahaahmed
+    email: [email protected]
+    url: https://github.com/mtahaahmed

stable/field-exporter/README.md

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+# field-exporter
+
+![Version: 1.0.0](https://img.shields.io/badge/Version-1.0.0-informational?style=flat-square) ![Type: application](https://img.shields.io/badge/Type-application-informational?style=flat-square) ![AppVersion: v1.0.0](https://img.shields.io/badge/AppVersion-v1.0.0-informational?style=flat-square)
+
+A chart to install [field-exporter](https://github.com/deliveryhero/field-exporter). This controller is used to fill the gap in [k8s-config-connector](https://github.com/GoogleCloudPlatform/k8s-config-connector) for exporting value from Config Connector managed resources into Secrets and ConfigMaps.
+
+## How to install this chart
+
+Add Delivery Hero public chart repo:
+
+```console
+helm repo add deliveryhero https://charts.deliveryhero.io/
+```
+
+A simple install with default values:
+
+```console
+helm install deliveryhero/field-exporter
+```
+
+To install the chart with the release name `my-release`:
+
+```console
+helm install my-release deliveryhero/field-exporter
+```
+
+To install with some set values:
+
+```console
+helm install my-release deliveryhero/field-exporter --set values_key1=value1 --set values_key2=value2
+```
+
+To install with custom values file:
+
+```console
+helm install my-release deliveryhero/field-exporter -f values.yaml
+```
+
+## Values
+
+| Key | Type | Default | Description |
+|-----|------|---------|-------------|
+| controllerManager.manager.args[0] | string | `"--health-probe-bind-address=:8081"` |  |
+| controllerManager.manager.args[1] | string | `"--metrics-bind-address=127.0.0.1:8080"` |  |
+| controllerManager.manager.args[2] | string | `"--leader-elect"` |  |
+| controllerManager.manager.containerSecurityContext.allowPrivilegeEscalation | bool | `false` |  |
+| controllerManager.manager.containerSecurityContext.capabilities.drop[0] | string | `"ALL"` |  |
+| controllerManager.manager.image.repository | string | `"europe-docker.pkg.dev/dp-common-infra-5780/developer-platform-public/deliveryhero/field-exporter"` |  |
+| controllerManager.manager.image.tag | string | `"v1.0.0"` |  |
+| controllerManager.manager.resources.limits.cpu | string | `"500m"` |  |
+| controllerManager.manager.resources.limits.memory | string | `"128Mi"` |  |
+| controllerManager.manager.resources.requests.cpu | string | `"10m"` |  |
+| controllerManager.manager.resources.requests.memory | string | `"128Mi"` |  |
+| controllerManager.podLabels | object | `{}` |  |
+| controllerManager.replicas | int | `1` |  |
+| controllerManager.serviceAccount.annotations | object | `{}` |  |
+| kubernetesClusterDomain | string | `"cluster.local"` |  |
+| metricsService.ports[0].name | string | `"https"` |  |
+| metricsService.ports[0].port | int | `8443` |  |
+| metricsService.ports[0].protocol | string | `"TCP"` |  |
+| metricsService.ports[0].targetPort | string | `"https"` |  |
+| metricsService.type | string | `"ClusterIP"` |  |
+
+## Maintainers
+
+| Name | Email | Url |
+| ---- | ------ | --- |
+| vzholudev | <[email protected]> | <https://github.com/vzholudev> |
+| mtahaahmed | <[email protected]> | <https://github.com/mtahaahmed> |

stable/field-exporter/crds/resourcefieldexport-crd.yaml

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+apiVersion: apiextensions.k8s.io/v1
+kind: CustomResourceDefinition
+metadata:
+  name: resourcefieldexports.gdp.deliveryhero.io
+  annotations:
+    controller-gen.kubebuilder.io/version: v0.13.0
+spec:
+  group: gdp.deliveryhero.io
+  names:
+    kind: ResourceFieldExport
+    listKind: ResourceFieldExportList
+    plural: resourcefieldexports
+    singular: resourcefieldexport
+  scope: Namespaced
+  versions:
+  - name: v1alpha1
+    schema:
+      openAPIV3Schema:
+        description: ResourceFieldExport is the Schema for the resourcefieldexports
+          API
+        properties:
+          apiVersion:
+            description: 'APIVersion defines the versioned schema of this representation
+              of an object. Servers should convert recognized schemas to the latest
+              internal value, and may reject unrecognized values. More info: https://git.k8s.io/community/contributors/devel/sig-architecture/api-conventions.md#resources'
+            type: string
+          kind:
+            description: 'Kind is a string value representing the REST resource this
+              object represents. Servers may infer this from the endpoint the client
+              submits requests to. Cannot be updated. In CamelCase. More info: https://git.k8s.io/community/contributors/devel/sig-architecture/api-conventions.md#types-kinds'
+            type: string
+          metadata:
+            type: object
+          spec:
+            description: ResourceFieldExportSpec defines the desired state of ResourceFieldExport
+            properties:
+              from:
+                properties:
+                  apiVersion:
+                    description: APIVersion is the group version of the resource
+                    pattern: ^([a-zA-Z0-9.-]+[a-zA-Z0-9-]\/[a-zA-Z0-9]+|[a-zA-Z0-9]+)$
+                    type: string
+                  kind:
+                    type: string
+                  name:
+                    type: string
+                required:
+                - apiVersion
+                - kind
+                - name
+                type: object
+              outputs:
+                items:
+                  properties:
+                    key:
+                      type: string
+                    path:
+                      type: string
+                  required:
+                  - key
+                  - path
+                  type: object
+                type: array
+              requiredFields:
+                properties:
+                  statusConditions:
+                    items:
+                      properties:
+                        status:
+                          type: string
+                        type:
+                          type: string
+                      required:
+                      - status
+                      - type
+                      type: object
+                    type: array
+                type: object
+              to:
+                description: DestinationRef is where the fields should be written.
+                properties:
+                  name:
+                    type: string
+                  type:
+                    description: DestinationType is a ConfigMap or a Secret
+                    enum:
+                    - ConfigMap
+                    - Secret
+                    type: string
+                required:
+                - name
+                - type
+                type: object
+            required:
+            - from
+            - outputs
+            - to
+            type: object
+          status:
+            description: ResourceFieldExportStatus defines the observed state of ResourceFieldExport
+            properties:
+              conditions:
+                items:
+                  properties:
+                    lastTransitionTime:
+                      description: The last time the condition transitioned from one
+                        status to another.
+                      format: date-time
+                      type: string
+                    message:
+                      description: A human-readable message indicating details about
+                        the transition.
+                      type: string
+                    status:
+                      description: Status of the condition, one of True, False, Unknown.
+                      type: string
+                    type:
+                      description: Type is the type of the Condition
+                      type: string
+                  required:
+                  - status
+                  - type
+                  type: object
+                type: array
+            required:
+            - conditions
+            type: object
+        type: object
+    served: true
+    storage: true
+    subresources:
+      status: {}
+status:
+  acceptedNames:
+    kind: ""
+    plural: ""
+  conditions: []
+  storedVersions: []

stable/field-exporter/templates/_helpers.tpl

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+{{/*
+Expand the name of the chart.
+*/}}
+{{- define "field-exporter.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 "field-exporter.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 "field-exporter.chart" -}}
+{{- printf "%s-%s" .Chart.Name .Chart.Version | replace "+" "_" | trunc 63 | trimSuffix "-" }}
+{{- end }}
+
+{{/*
+Common labels
+*/}}
+{{- define "field-exporter.labels" -}}
+helm.sh/chart: {{ include "field-exporter.chart" . }}
+{{ include "field-exporter.selectorLabels" . }}
+{{- if .Chart.AppVersion }}
+app.kubernetes.io/version: {{ .Chart.AppVersion | quote }}
+{{- end }}
+app.kubernetes.io/managed-by: {{ .Release.Service }}
+{{- end }}
+
+{{/*
+Selector labels
+*/}}
+{{- define "field-exporter.selectorLabels" -}}
+app.kubernetes.io/name: {{ include "field-exporter.name" . }}
+app.kubernetes.io/instance: {{ .Release.Name }}
+{{- end }}
+
+{{/*
+Create the name of the service account to use
+*/}}
+{{- define "field-exporter.serviceAccountName" -}}
+{{- if .Values.serviceAccount.create }}
+{{- default (include "field-exporter.fullname" .) .Values.serviceAccount.name }}
+{{- else }}
+{{- default "default" .Values.serviceAccount.name }}
+{{- end }}
+{{- end }}

stable/field-exporter/templates/deployment.yaml

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+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: {{ include "field-exporter.fullname" . }}-controller-manager
+  labels:
+    app.kubernetes.io/component: manager
+    app.kubernetes.io/created-by: field-exporter
+    app.kubernetes.io/part-of: field-exporter
+    control-plane: controller-manager
+  {{- include "field-exporter.labels" . | nindent 4 }}
+spec:
+  replicas: {{ .Values.controllerManager.replicas }}
+  selector:
+    matchLabels:
+      control-plane: controller-manager
+    {{- include "field-exporter.selectorLabels" . | nindent 6 }}
+  template:
+    metadata:
+      labels:
+        control-plane: controller-manager
+      {{- include "field-exporter.selectorLabels" . | nindent 8 }}
+      {{- if .Values.controllerManager.podLabels }}
+{{ toYaml .Values.controllerManager.podLabels | indent 8 }}
+      {{- end }}
+      annotations:
+        kubectl.kubernetes.io/default-container: manager
+    spec:
+      containers:
+      - args: {{- toYaml .Values.controllerManager.manager.args | nindent 8 }}
+        command:
+        - /manager
+        env:
+        - name: KUBERNETES_CLUSTER_DOMAIN
+          value: {{ quote .Values.kubernetesClusterDomain }}
+        image: {{ .Values.controllerManager.manager.image.repository }}:{{ .Values.controllerManager.manager.image.tag | default .Chart.AppVersion }}
+        livenessProbe:
+          httpGet:
+            path: /healthz
+            port: 8081
+          initialDelaySeconds: 15
+          periodSeconds: 20
+        name: manager
+        readinessProbe:
+          httpGet:
+            path: /readyz
+            port: 8081
+          initialDelaySeconds: 5
+          periodSeconds: 10
+        resources: {{- toYaml .Values.controllerManager.manager.resources | nindent 10
+          }}
+        securityContext: {{- toYaml .Values.controllerManager.manager.containerSecurityContext
+          | nindent 10 }}
+      securityContext:
+        runAsNonRoot: true
+      serviceAccountName: {{ include "field-exporter.fullname" . }}-controller-manager
+      terminationGracePeriodSeconds: 10