helmed the kubernetes deployment

.gitignore

 .bat
+.idea
\ No newline at end of file

justfile

 set windows-shell := ["pwsh", "-c"]
 
-ctxt := "minikube"
+ctxt := "c4c"
 ctxt_flag := "--context " + ctxt
 
 default:
@@ -11,11 +11,10 @@ apply a:
     kubectl apply {{ ctxt_flag }} -f {{ a }}
 
 [no-exit-message]
-apply-all: (apply "services.yaml") (apply "config-maps.yaml") (apply "backend-deployment.yaml") (apply "frontend-deployment.yaml")
-
+apply-all: (apply "old/services.yaml") (apply "old/config-maps.yaml") (apply "old/backend-deployment.yaml") (apply "old/frontend-deployment.yaml")
 
 [no-exit-message]
-restart-fronted:
+restart-frontend:
     kubectl rollout {{ ctxt_flag }} restart deployment maed-exporter-frontend
 
 [no-exit-message]
@@ -23,7 +22,7 @@ restart-backend:
     kubectl rollout {{ ctxt_flag }} restart deployment maed-exporter-backend
 
 [no-exit-message]
-restart: restart-backend restart-fronted
+restart: restart-backend restart-frontend
 
 with-label := "true"
 
@@ -34,3 +33,39 @@ do *args="describe deployments":
 [no-exit-message]
 minikube-start *args:
     minikube start --apiserver-port=8888 --namespace mdata {{ args }}
+
+helm-package:
+    cd helm/ && helm package superset-mitm-service
+
+helm-push a: helm-package
+    # helm registry login registry-1.docker.io -u leahtgu
+    cd helm/ && helm push {{ a }} oci://registry-1.docker.io/leahtgu
+
+helm-install:
+    helm --kube-context c4c -n mdata install maed-exporter-app maed-exporter-app
+
+helm-install-dry:
+    helm --kube-context c4c -n mdata install maed-exporter-app maed-exporter-app --dry-run > dryrun.yaml
+
+helm-uninstall:
+    helm --kube-context c4c -n mdata uninstall maed-exporter-app
+
+kube-forward:
+    #! powershell
+    $POD_NAME = kubectl --context=c4c get pods --namespace mdata -l "app.kubernetes.io/name=maed-exporter-app,app.kubernetes.io/instance=backend" -o jsonpath="{.items[0].metadata.name}"
+    $CONTAINER_PORT = kubectl --context=c4c get pod --namespace mdata $POD_NAME -o jsonpath="{.spec.containers[0].ports[0].containerPort}"
+    Write-Output "Visit http://127.0.0.1:8080 to use your application"
+    kubectl --context=c4c --namespace mdata port-forward $POD_NAME 8080:$CONTAINER_PORT
+
+kube *arg:
+    kubectl --context=c4c -n mdata {{ arg }}
+
+kubeinto comp="backend" svc="maed-exporter-app":
+    #! powershell
+    $POD_NAME = kubectl --context=c4c get pods --namespace mdata -l "app.kubernetes.io/name={{ svc }},app.kubernetes.io/component={{ comp }}" -o jsonpath="{.items[0].metadata.name}"
+    kubectl --context=c4c --namespace mdata exec --stdin --tty $POD_NAME -- /bin/bash
+
+kubelogs comp="backend" svc="maed-exporter-app":
+    #! powershell
+    $POD_NAME = kubectl --context=c4c get pods --namespace mdata -l "app.kubernetes.io/name={{ svc }},app.kubernetes.io/component={{ comp }}" -o jsonpath="{.items[0].metadata.name}"
+    kubectl --context=c4c --namespace mdata logs $POD_NAME

maed-exporter-app/.helmignore

+# 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/

maed-exporter-app/Chart.yaml

+apiVersion: v2
+name: maed-exporter-app
+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"

maed-exporter-app/templates/_helpers.tpl

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

maed-exporter-app/templates/app-config-map.yaml

+apiVersion: v1
+kind: ConfigMap
+metadata:
+  name: maed-exporter-env
+  labels:
+    app.kubernetes.io/name: maed-exporter-app
+    {{- include "maed-exporter-app.labels" . | nindent 4 }}
+data:
+  FRONTEND_PORT: "{{ .Values.frontend.port | default 8090 }}"
+  API_BASE: "maed-exporter-backend-svc"
+  API_PORT: "{{ .Values.backend.port | default 8080 }}"
+  API_PREFIX: "/api"
+  EXPORT_DIR: "/exports/"
+  UPLOAD_DIR: "/uploads/"
+  CORS_ORIGIN: "maed-exporter-frontend-svc:8090"
\ No newline at end of file

maed-exporter-app/templates/backend-deployment.yaml

+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: maed-exporter-backend
+  {{- if .Values.namespace }}
+  namespace: {{.Values.namespace | quote }}
+  {{- end }}
+  labels:
+    app.kubernetes.io/name: maed-exporter-app
+    app.kubernetes.io/component: backend
+    app.kubernetes.io/version: {{.Chart.AppVersion }}
+spec:
+  selector:
+    matchLabels:
+      app.kubernetes.io/name: maed-exporter-app
+      app.kubernetes.io/component: backend
+  replicas: 1
+  template:
+    metadata:
+      labels:
+        app.kubernetes.io/name: maed-exporter-app
+        app.kubernetes.io/component: backend
+        helm.sh/chart: {{ .Chart.Name }}-{{ .Chart.Version }}
+        app.kubernetes.io/instance: {{ .Release.Name }}
+        app.kubernetes.io/managed-by: {{ .Release.Service }}
+    spec:
+      containers:
+        - name: maed-exporter-backend
+          image: {{.Values.backend.image}}
+          imagePullPolicy: Always
+          ports:
+            - containerPort: {{.Values.backend.port | default 8080 }}
+              protocol: TCP
+          envFrom:
+            - configMapRef:
+                name: maed-exporter-env
+          volumeMounts:
+            - mountPath: /exports
+              name: exports
+            - mountPath: /uploads
+              name: uploads
+          resources:
+            limits:
+              memory: "2Gi"
+              cpu: "1000m"
+            requests:
+              memory: "512Mi"
+              cpu: "500m"
+          livenessProbe:
+            httpGet:
+              path: /health
+              port: {{ .Values.backend.port | default 8080}}
+            initialDelaySeconds: 30
+            periodSeconds: 60
+            timeoutSeconds: 2
+            failureThreshold: 3
+          readinessProbe:
+            httpGet:
+              path: /health
+              port: {{ .Values.backend.port | default 8080}}
+            initialDelaySeconds: 30
+            periodSeconds: 60
+            timeoutSeconds: 2
+            failureThreshold: 3
+      volumes:
+        - name: exports
+          emptyDir:
+            sizeLimit: "1Gi"
+        - name: uploads
+          emptyDir:
+            sizeLimit: "1Gi"
+
+
+

maed-exporter-app/templates/backend-svc.yaml

+apiVersion: v1
+kind: Service
+metadata:
+  name: maed-exporter-backend-svc
+  {{- if .Values.namespace }}
+  namespace: {{.Values.namespace | quote }}
+  {{- end }}
+  labels:
+    app.kubernetes.io/name: maed-exporter-app
+    {{- include "maed-exporter-app.labels" . | nindent 4 }}
+spec:
+  selector:
+    app.kubernetes.io/name: maed-exporter-app
+    app.kubernetes.io/component: backend
+  ports:
+    - protocol: TCP
+      port: {{ .Values.backend.port | default 8080 }}
+  type: ClusterIP
\ No newline at end of file

maed-exporter-app/templates/frontend-deployment.yaml

+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: maed-exporter-frontend
+  {{- if .Values.namespace }}
+  namespace: {{.Values.namespace | quote }}
+  {{- end }}
+  labels:
+    app.kubernetes.io/name: maed-exporter-app
+    app.kubernetes.io/component: frontend
+    app.kubernetes.io/version: {{.Chart.AppVersion }}
+spec:
+  selector:
+    matchLabels:
+      app.kubernetes.io/name: maed-exporter-app
+      app.kubernetes.io/component: frontend
+  replicas: 1
+  revisionHistoryLimit: 5
+  strategy:
+    type: Recreate
+  template:
+    metadata:
+      labels:
+        app.kubernetes.io/name: maed-exporter-app
+        app.kubernetes.io/component: frontend
+        helm.sh/chart: {{ .Chart.Name }}-{{ .Chart.Version }}
+        app.kubernetes.io/instance: {{ .Release.Name }}
+        app.kubernetes.io/managed-by: {{ .Release.Service }}
+    spec:
+      initContainers:
+        - name: wait-for-backend
+          image: curlimages/curl:latest
+          command:
+            - sh
+            - -c
+            - "until curl -sf http://maed-exporter-backend-svc:{{ .Values.backend.port | default 8080 }}/api/health; do echo 'Waiting for backend...'; sleep 5; done"
+      containers:
+        - name: maed-exporter-frontend
+          image: {{.Values.frontend.image}}
+          imagePullPolicy: Always
+          ports:
+            - containerPort: {{ .Values.frontend.port | default 8090}}
+              protocol: TCP
+          envFrom:
+            - configMapRef:
+                name: maed-exporter-env
+          volumeMounts:
+            - name: nginx-cfg
+              mountPath: /etc/nginx/templates/default.conf.template #/etc/nginx/conf.d/default.conf
+              subPath: default.conf.template
+          resources:
+            limits:
+              memory: "1Gi"
+              cpu: "1000m"
+            requests:
+              memory: "1Gi"
+              cpu: "500m"
+          livenessProbe:
+            httpGet:
+              path: /health
+              port: {{ .Values.frontend.port | default 8090}}
+            initialDelaySeconds: 15
+            periodSeconds: 60
+            timeoutSeconds: 2
+            failureThreshold: 3
+          readinessProbe:
+            httpGet:
+              path: /health
+              port: {{ .Values.frontend.port | default 8090}}
+            initialDelaySeconds: 15
+            periodSeconds: 60
+            timeoutSeconds: 2
+            failureThreshold: 3
+      volumes:
+        - name: nginx-cfg
+          configMap:
+            name: nginx-cfg

maed-exporter-app/templates/frontend-svc.yaml

+apiVersion: v1
+kind: Service
+metadata:
+  name: maed-exporter-frontend-svc
+  {{- if .Values.namespace }}
+  namespace: {{.Values.namespace | quote }}
+  {{- end }}
+  labels:
+    app.kubernetes.io/name: maed-exporter-app
+    {{- include "maed-exporter-app.labels" . | nindent 4 }}
+spec:
+  selector:
+    app.kubernetes.io/name: maed-exporter-app
+    app.kubernetes.io/component: frontend
+  ports:
+    - protocol: TCP
+      port: {{ .Values.frontend.port | default 8090 }}
\ No newline at end of file

maed-exporter-app/templates/nginx-config-map.yaml

+apiVersion: v1
+kind: ConfigMap
+metadata:
+  name: nginx-cfg
+  labels:
+    app.kubernetes.io/name: maed-exporter-app
+    {{- include "maed-exporter-app.labels" . | nindent 4 }}
+data:
+  # hash $cookie_simple_session consistent;
+  # proxy_set_header X-Real-IP $remote_addr;
+  # proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
+  # proxy_set_header X-Forwarded-Proto $scheme;
+  default.conf.template: |
+    upstream api {
+        hash $cookie_simple_session consistent;
+        server ${API_BASE}:${API_PORT} max_fails=3 fail_timeout=30s;
+    }
+
+    server {
+        listen ${FRONTEND_PORT};
+
+        location / {
+            index index.html;
+            root /usr/share/nginx/html;
+            try_files $uri $uri/ /index.html =404;
+        }
+
+        location /health {
+          access_log off;
+          add_header 'Content-Type' 'application/json';
+          return 200 '{"status":"healthy"}';
+      }
+
+
+      location ${API_PREFIX} {
+          proxy_pass http://api;
+          proxy_set_header Host $http_host;
+          proxy_set_header X-Real-IP $remote_addr;
+          proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
+          proxy_set_header X-Forwarded-Proto $scheme;
+          proxy_http_version 1.1;
+      }
+    }
\ No newline at end of file

maed-exporter-app/templates/tests/test-connection.yaml

+apiVersion: v1
+kind: Pod
+metadata:
+  name: "maed-exporter-app-test-connection"
+  labels:
+    {{- include "maed-exporter-app.labels" . | nindent 4 }}
+  annotations:
+    "helm.sh/hook": test
+spec:
+  containers:
+    - name: wget
+      image: busybox
+      command: [ 'wget' ]
+      args: [ 'maed-exporter-backend-svc:{{ .Values.backend.port }}' ]
+  restartPolicy: Never

maed-exporter-app/values.yaml

+namespace: mdata
+
+backend:
+  image: registry.git-ce.rwth-aachen.de/machine-data/maed-exporter/maed-exporter-backend:release
+  port: 8080
+
+frontend:
+  image: registry.git-ce.rwth-aachen.de/machine-data/maed-exporter/maed-exporter-frontend:release
+  port: 8090
\ No newline at end of file

config-maps.yaml → old/config-maps.yaml

@@ -6,12 +6,12 @@ metadata:
     app.kubernetes.io/name: maed-exporter-app
 data:
   FRONTEND_PORT: "8090"
-  API_BASE: "maed-exporter-backend-svc.mdata.svc.cluster.local"
+  API_BASE: "maed-exporter-backend-svc"
   API_PORT: "8080"
   API_PREFIX: "/api"
   EXPORT_DIR: "/exports/"
   UPLOAD_DIR: "/uploads/"
-  CORS_ORIGIN: "maed-exporter-frontend-svc.mdata.svc.cluster.local:8090"
+  CORS_ORIGIN: "maed-exporter-frontend-svc:8090"
 ---
 apiVersion: v1
 kind: ConfigMap