[MOSIP-30647] added deployment info helm chart

charts/deployment-info/.gitignore

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+charts/

charts/deployment-info/.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/

charts/deployment-info/Chart.yaml

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+apiVersion: v2
+name: deployment-info
+description: A Helm chart to get deployment information
+type: application
+version: 0.0.1-develop
+appVersion: ""
+home: https://mosip.io
+keywords:
+  - mosip
+  - deployment-info
+maintainers:
+  - email: [email protected]
+    name: MOSIP

charts/deployment-info/README.md

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+# Deployment Information Helm Chart
+
+This Helm chart deploys an NGINX server along with a script to fetch Kubernetes deployment information.
+
+## TL;DR
+
+```console
+$ helm repo add mosip https://mosip.github.io
+$ helm install my-release mosip/deployment-info
+```
+

charts/deployment-info/templates/_helpers.tpl

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

charts/deployment-info/templates/clusterrole.yaml

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+apiVersion: rbac.authorization.k8s.io/v1
+kind: ClusterRole
+metadata:
+  name: {{ .Release.Name }}
+  namespace: {{ .Release.Namespace }}
+rules:
+  - apiGroups:
+      - ""
+    resources:
+      - namespaces
+      - pods
+    verbs:
+      - get
+      - list
+  - apiGroups:
+      - apps
+    resources:
+      - deployments
+      - statefulsets
+    verbs:
+      - get
+      - list
+  - apiGroups:
+      - batch
+    resources:
+      - jobs
+      - cronjobs
+    verbs:
+      - get
+      - list

charts/deployment-info/templates/clusterrolebinding.yaml

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+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

charts/deployment-info/templates/configmap.yaml

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+apiVersion: v1
+kind: ConfigMap
+metadata:
+  name: {{ .Release.Name }}-script-config
+  namespace: {{ .Release.Namespace }}
+data:
+  fetch-deployment-info.sh: |
+    #!/bin/sh
+
+    # Clear existing deployment_info.txt or create if not exists
+    > /usr/share/nginx/html/deployment_info.txt
+
+    kubectl get namespaces | awk 'NR>1 {print $1}' | while read namespace; do
+      echo "Namespace: $namespace" >> /usr/share/nginx/html/deployment_info.txt
+
+      # Get deployments
+      kubectl get deployments -n $namespace -o json | jq -r '.items[] | "Deployment: \(.metadata.name), Image: \(.spec.template.spec.containers[].image), Helm Chart Version: \(.metadata.labels["helm.sh/chart"])"' >> /usr/share/nginx/html/deployment_info.txt
+
+      # Get statefulsets
+      kubectl get statefulsets -n $namespace -o json | jq -r '.items[] | "StatefulSet: \(.metadata.name), Image: \(.spec.template.spec.containers[].image), Helm Chart Version: \(.metadata.labels["helm.sh/chart"])"' >> /usr/share/nginx/html/deployment_info.txt
+
+      # Get cronjobs
+      kubectl get cronjobs -n $namespace -o json | jq -r '.items[] | "CronJob: \(.metadata.name), Image: \(.spec.jobTemplate.spec.template.spec.containers[].image), Helm Chart Version: \(.metadata.labels["helm.sh/chart"])"' >> /usr/share/nginx/html/deployment_info.txt
+
+      # Get jobs
+      kubectl get jobs -n $namespace -o json | jq -r '.items[] | "Job: \(.metadata.name), Image: \(.spec.template.spec.containers[].image), Helm Chart Version: \(.metadata.labels["helm.sh/chart"])"' >> /usr/share/nginx/html/deployment_info.txt
+
+      echo "" >> /usr/share/nginx/html/deployment_info.txt
+    done
+
+    echo "Script executed at $(date)" >> /usr/share/nginx/html/deployment_info.txt

charts/deployment-info/templates/deployment.yaml

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+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: {{ .Release.Name }}
+  namespace: {{ .Release.Namespace }}
+  labels:
+    {{- include "deployment-info.labels" . | nindent 4 }}
+spec:
+  replicas: {{ .Values.replicaCount }}
+  selector:
+    matchLabels:
+      app: deployment-info
+  template:
+    metadata:
+      labels:
+        app: deployment-info
+    spec:
+      serviceAccountName: {{ .Release.Name }}
+      containers:
+        - name: nginx
+          image: {{ .Values.nginx.image }}
+          imagePullPolicy: {{ .Values.nginx.imagePullPolicy }}
+          ports:
+            - containerPort: 80
+          volumeMounts:
+            - name: result-file
+              mountPath: /usr/share/nginx/html
+        - name: script-runner
+          image: {{ .Values.scriptRunner.image }}
+          imagePullPolicy: {{ .Values.nginx.imagePullPolicy }}
+          command:
+            - /bin/sh
+            - -c
+            - |
+              apk add --no-cache bash curl bind-tools jq
+              
+              curl -LO "https://dl.k8s.io/release/$(curl -s https://storage.googleapis.com/kubernetes-release/release/stable.txt)/bin/linux/amd64/kubectl"
+              
+              chmod +x kubectl
+              
+              mv kubectl /usr/local/bin/
+              
+              cp /fetch-deployment-info.sh /tmp/fetch-deployment-info.sh
+              
+              chmod +x /tmp/fetch-deployment-info.sh
+              
+              /tmp/fetch-deployment-info.sh
+              
+              echo "0 2 * * * /tmp/fetch-deployment-info.sh" > /etc/crontabs/root
+              
+              crond -f
+          volumeMounts:
+            - name: script-file
+              mountPath: /fetch-deployment-info.sh
+              subPath: fetch-deployment-info.sh
+            - name: result-file
+              mountPath: /usr/share/nginx/html
+      volumes:
+        - name: script-file
+          configMap:
+            name: {{ .Release.Name }}-script-config
+        - name: result-file
+          emptyDir: {}

charts/deployment-info/templates/service.yaml

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+apiVersion: v1
+kind: Service
+metadata:
+  name: {{ .Release.Name }}
+  namespace: {{ .Release.Namespace }}
+spec:
+  selector:
+    app: deployment-info
+  ports:
+    - protocol: TCP
+      port: 80
+      targetPort: 80
+  type: ClusterIP

charts/deployment-info/templates/serviceaccount.yaml

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+apiVersion: v1
+kind: ServiceAccount
+metadata:
+  name: {{ .Release.Name }}
+  namespace: {{ .Release.Namespace }}

charts/deployment-info/templates/virtualservice.yaml

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+apiVersion: networking.istio.io/v1alpha3
+kind: VirtualService
+metadata:
+  name: {{ .Release.Name }}
+  namespace: {{ .Release.Namespace }}
+spec:
+  hosts:
+    - "*"
+  gateways:
+    {{- if .Values.istio.gateways }}
+      {{- range .Values.istio.gateways }}
+      - {{ . }}
+      {{- end }}
+      {{- end }}
+  http:
+    - match:
+        - uri:
+            prefix: {{ .Values.istio.prefix }}
+      route:
+        - destination:
+            host: {{ .Release.Name }}
+            port:
+              number: 80
+      headers:
+        request:
+          set:
+            x-forwarded-proto: https

charts/deployment-info/values.yaml

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+replicaCount: 1
+
+nginx:
+  image: nginx:latest
+  imagePullPolicy: IfNotPresent
+
+scriptRunner:
+  image: alpine:latest
+  imagePullPolicy: IfNotPresent
+
+
+istio:
+  enabled: true
+  gateways:
+    - istio-system/internal
+  prefix: /deployment_info.txt