feat: packaged the entire system into a helm chart (#9)

* With all the components

* Fix namespace

* Separated files

* fixed a typo

* Created Complete chart

* Added missing components

* Updated the version

charts/lazy-koala/.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/

charts/lazy-koala/Chart.yaml

@@ -0,0 +1,24 @@
+apiVersion: v2
+name: lazy-koala
+description: A toolkit to apply AIOps to distributed systems
+
+# 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: 1.0.0
+
+# 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: "1.0.0"

charts/lazy-koala/crds/lazykoala.isala.me_inspectors.yaml

@@ -0,0 +1,107 @@
+---
+apiVersion: apiextensions.k8s.io/v1
+kind: CustomResourceDefinition
+metadata:
+  annotations:
+    controller-gen.kubebuilder.io/version: v0.8.0
+  creationTimestamp: null
+  name: inspectors.lazykoala.isala.me
+spec:
+  group: lazykoala.isala.me
+  names:
+    kind: Inspector
+    listKind: InspectorList
+    plural: inspectors
+    singular: inspector
+  scope: Namespaced
+  versions:
+  - additionalPrinterColumns:
+    - jsonPath: .spec.namespace
+      name: Namespace
+      type: string
+    - jsonPath: .spec.deploymentRef
+      name: Target Deployment
+      type: string
+    - jsonPath: .spec.serviceRef
+      name: Target ClusterIP
+      type: string
+    - jsonPath: .spec.modelName
+      name: Model Name
+      type: string
+    - jsonPath: .status.status
+      name: Status
+      type: string
+    name: v1alpha1
+    schema:
+      openAPIV3Schema:
+        description: Inspector is the Schema for the inspectors 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: InspectorSpec defines the desired state of Inspector
+            properties:
+              deploymentRef:
+                description: Foo is an example field of Inspector. Edit inspector_types.go
+                  to remove/update
+                type: string
+              modelName:
+                type: string
+              namespace:
+                type: string
+              serviceRef:
+                type: string
+            required:
+            - deploymentRef
+            - modelName
+            - namespace
+            - serviceRef
+            type: object
+          status:
+            description: InspectorStatus defines the observed state of Inspector
+            properties:
+              monitoredIPs:
+                description: 'INSERT ADDITIONAL STATUS FIELD - define observed state
+                  of cluster Important: Run "make" to regenerate code after modifying
+                  this file'
+                items:
+                  type: string
+                type: array
+              podsSelector:
+                additionalProperties:
+                  type: string
+                description: MatchingLabels filters the list/delete operation on the
+                  given set of labels.
+                type: object
+              status:
+                enum:
+                - Creating
+                - Running
+                - Error
+                type: string
+            required:
+            - monitoredIPs
+            - podsSelector
+            - status
+            type: object
+        type: object
+    served: true
+    storage: true
+    subresources:
+      status: {}
+status:
+  acceptedNames:
+    kind: ""
+    plural: ""
+  conditions: []
+  storedVersions: []

charts/lazy-koala/templates/NOTES.txt

@@ -0,0 +1,14 @@
+Lazy Koala was successfully installed the {{ .Release.Namespace }} namespace
+
+To access the main dashboard,
+  1. Run 
+          $ kubectl port-forward svc/inspector 8090:80 -n {{ .Release.Namespace }}
+  2. Open http://localhost:8090 in your browser
+
+Under the settings tab you will be able to find out list of service that's running inside the cluster.
+From there you can mark them to be monitored by the gazer agent.
+
+Finally, Once you navigated to the main dashboard, you can see the list of services that are being monitored and how they interact with each other.
+
+To Uninstall the Lazy Koala, Simply run 
+  $ helm uninstall {{ .Release.Name }} -n {{ .Release.Namespace }}

charts/lazy-koala/templates/_helpers.tpl

@@ -0,0 +1,62 @@
+{{/*
+Expand the name of the chart.
+*/}}
+{{- define "lazy-koala.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 "lazy-koala.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 "lazy-koala.chart" -}}
+{{- printf "%s-%s" .Chart.Name .Chart.Version | replace "+" "_" | trunc 63 | trimSuffix "-" }}
+{{- end }}
+
+{{/*
+Common labels
+*/}}
+{{- define "lazy-koala.labels" -}}
+helm.sh/chart: {{ include "lazy-koala.chart" . }}
+{{ include "lazy-koala.selectorLabels" . }}
+{{- if .Chart.AppVersion }}
+app.kubernetes.io/version: {{ .Chart.AppVersion | quote }}
+{{- end }}
+app.kubernetes.io/managed-by: {{ .Release.Service }}
+{{- end }}
+
+{{/*
+Selector labels
+*/}}
+{{- define "lazy-koala.selectorLabels" -}}
+app.kubernetes.io/name: {{ include "lazy-koala.name" . }}
+app.kubernetes.io/instance: {{ .Release.Name }}
+{{- end }}
+
+{{/*
+Create the name of the service account to use
+*/}}
+{{- define "lazy-koala.serviceAccount.name" -}}
+{{- if .Values.serviceAccount.create }}
+{{- default (include "lazy-koala.fullname" .) .Values.serviceAccount.name }}
+{{- else }}
+{{- default "default" .Values.serviceAccount.name }}
+{{- end }}
+{{- end }}

charts/lazy-koala/templates/gazer/configmap.yaml

@@ -0,0 +1,9 @@
+{{- if .Values.gazer.create -}}
+apiVersion: v1
+kind: ConfigMap
+metadata:
+    name: gazer-config
+    namespace: {{ .Release.Namespace }}
+data:
+    config.yaml: |
+{{- end }}

charts/lazy-koala/templates/gazer/daemonset.yaml

@@ -0,0 +1,80 @@
+{{- if .Values.gazer.create -}}
+apiVersion: apps/v1
+kind: DaemonSet
+metadata:
+  name: "gazer"
+  namespace: {{ .Release.Namespace }}
+  labels:
+    {{- include "lazy-koala.labels" . | nindent 4 }}
+    lazykoala: gazer
+spec:
+  selector:
+    matchLabels:
+      {{- include "lazy-koala.selectorLabels" . | nindent 6 }}
+      lazykoala: gazer
+  template:
+    metadata:
+      {{- with .Values.gazer.podAnnotations }}
+      annotations:
+        {{- toYaml . | nindent 8 }}
+      {{- end }}
+      labels:
+        {{- include "lazy-koala.selectorLabels" . | nindent 8 }}
+        lazykoala: gazer
+    spec:
+      {{- with .Values.gazer.imagePullSecrets }}
+      imagePullSecrets:
+        {{- toYaml . | nindent 8 }}
+      {{- end }}
+      hostNetwork: true
+      hostPID: true
+      serviceAccountName: {{ .Values.gazer.serviceAccount.name }}
+      securityContext:
+        {{- toYaml .Values.gazer.podSecurityContext | nindent 8 }}
+      containers:
+        - name: {{ .Chart.Name }}
+          securityContext:
+            {{- toYaml .Values.gazer.securityContext | nindent 12 }}
+          image: "{{ .Values.gazer.image.repository }}:{{ .Values.gazer.image.tag }}"
+          imagePullPolicy: {{ .Values.gazer.image.pullPolicy }}
+          ports:
+            - containerPort: 8000
+              name: metrics
+          resources:
+            {{- toYaml .Values.gazer.resources | nindent 12 }}
+          env:
+            - name: NODE_NAME
+              valueFrom:
+                fieldRef:
+                  fieldPath: spec.nodeName
+            - name: PYTHONUNBUFFERED
+              value: "1"
+            - name: PYTHONWARNINGS
+              value: "ignore:Unverified HTTPS request"
+          volumeMounts:
+            {{- toYaml .Values.gazer.volumeMounts | nindent 12 }}
+      initContainers:
+        - name: init-headers
+          image: "{{ .Values.gazer.initImage.repository }}:{{ .Values.gazer.initImage.tag }}"
+          imagePullPolicy: {{ .Values.gazer.initImage.pullPolicy }}
+          securityContext:
+            {{- toYaml .Values.gazer.securityContext | nindent 12 }}
+          volumeMounts:
+            {{- toYaml .Values.gazer.volumeMounts | nindent 12 }}
+      {{- with .Values.gazer.volumes }}
+      volumes:
+        {{- toYaml . | nindent 8 }}
+      {{- end }}
+      {{- with .Values.gazer.nodeSelector }}
+      nodeSelector:
+        {{- toYaml . | nindent 8 }}
+      {{- end }}
+      {{- with .Values.gazer.affinity }}
+      affinity:
+        {{- toYaml . | nindent 8 }}
+      {{- end }}
+      {{- with .Values.gazer.tolerations }}
+      tolerations:
+        {{- toYaml . | nindent 8 }}
+      {{- end }}
+{{- end }}

charts/lazy-koala/templates/gazer/prometheus/configmap.yaml

@@ -0,0 +1,26 @@
+{{- if .Values.gazer.create -}}
+apiVersion: v1
+kind: ConfigMap
+metadata:
+  name: prometheus-config
+  namespace: {{ .Release.Namespace }}
+data:
+  prometheus.yml: |
+    global:
+      scrape_interval: 10s
+    scrape_configs:
+      - job_name: 'lazy-koala'
+        scrape_interval: 1s
+        metrics_path: /
+        kubernetes_sd_configs:
+        - role: pod
+        relabel_configs:
+        - source_labels: [__meta_kubernetes_pod_annotationpresent_lazy_koala_scrape]
+          action: keep
+          regex: true
+        - source_labels: [__meta_kubernetes_pod_container_port_name]
+          regex: metrics
+          action: keep
+        - source_labels: [__meta_kubernetes_pod_container_name]
+          target_label: gazer
+{{- end }}