diff --git a/.github/workflows/main.yaml b/.github/workflows/main.yaml
index c8e2ede..f4fbb52 100644
--- a/.github/workflows/main.yaml
+++ b/.github/workflows/main.yaml
@@ -85,6 +85,8 @@ jobs:
 
       - name: Apply
         run: kubectl apply -f tests/expected.yaml
+      - name: Apply
+        run: kubectl apply -f tests/print-expected.yaml
 
       - name: Publish
         run: c2cciutils-publish
diff --git a/.pre-commit-config.yaml b/.pre-commit-config.yaml
index 4bf7073..7f11abb 100644
--- a/.pre-commit-config.yaml
+++ b/.pre-commit-config.yaml
@@ -57,6 +57,19 @@ repos:
           - custom
           - .
           - tests/expected.yaml
+      - id: helm-template-gen
+        files: |-
+          (?x)(
+            ^templates/.*$
+            |^values\.yaml$
+            |^Chart\.yaml$
+            |^tests/print\.yaml$
+          )
+        args:
+          - --values=tests/print.yaml
+          - print
+          - .
+          - tests/print-expected.yaml
   - repo: https://github.com/codespell-project/codespell
     rev: v2.2.6
     hooks:
diff --git a/tests/print-expected.yaml b/tests/print-expected.yaml
new file mode 100644
index 0000000..96eeadd
--- /dev/null
+++ b/tests/print-expected.yaml
@@ -0,0 +1,363 @@
+---
+# Source: custom-pod/templates/pdb.yaml
+apiVersion: policy/v1
+kind: PodDisruptionBudget
+metadata:
+  name: print-custom-pod-print
+  labels:
+    helm.sh/chart: custom-pod
+    app.kubernetes.io/version: "1.0"
+    app.kubernetes.io/managed-by: Helm
+    app.kubernetes.io/name: custom-pod
+    app.kubernetes.io/instance: print
+    app.kubernetes.io/component: print
+spec:
+  maxUnavailable: 1
+  selector:
+    matchLabels:
+      app.kubernetes.io/name: custom-pod
+      app.kubernetes.io/instance: print
+      app.kubernetes.io/component: print
+---
+# Source: custom-pod/templates/cm_metadata.yaml
+apiVersion: v1
+kind: ConfigMap
+metadata:
+  name: print-custom-pod-metadata
+  labels:
+    helm.sh/chart: custom-pod
+    app.kubernetes.io/version: "1.0"
+    app.kubernetes.io/managed-by: Helm
+    app.kubernetes.io/name: custom-pod
+    app.kubernetes.io/instance: print
+    app.kubernetes.io/component: main
+data:
+  CHART_NAME: custom-pod
+  RELEASE_NAME: print
+  RELEASE_NAMESPACE: default
+  SERVICE_PRINT_NAME: print-custom-pod-print
+  SERVICE_PRINT_CONTAINER_JMX-EXPORTER_IMAGE_TAG: "0.18.0"
+  SERVICE_PRINT_CONTAINER_PRINT_IMAGE_TAG: "3.30"
+---
+# Source: custom-pod/templates/configmap.yaml
+apiVersion: v1
+kind: ConfigMap
+metadata:
+  name: print-custom-pod
+  labels:
+    helm.sh/chart: custom-pod
+    app.kubernetes.io/version: "1.0"
+    app.kubernetes.io/managed-by: Helm
+    app.kubernetes.io/name: custom-pod
+    app.kubernetes.io/instance: print
+    app.kubernetes.io/component: main
+data:
+  jmxExporterYaml: |-
+    lowercaseOutputLabelNames: true
+    lowercaseOutputName: true
+    password: null
+    ssl: false
+    startDelaySeconds: 30
+    username: null
+---
+# Source: custom-pod/templates/service.yaml
+apiVersion: v1
+kind: Service
+metadata:
+  name: print-custom-pod-print
+  labels:
+    helm.sh/chart: custom-pod
+    app.kubernetes.io/version: "1.0"
+    app.kubernetes.io/managed-by: Helm
+    app.kubernetes.io/name: custom-pod
+    app.kubernetes.io/instance: print
+    app.kubernetes.io/component: print
+spec:
+  type: ClusterIP
+  ports:
+    - name: http
+      port: 8080
+      protocol: TCP
+      targetPort: http
+  selector:
+    app.kubernetes.io/name: custom-pod
+    app.kubernetes.io/instance: print
+    app.kubernetes.io/component: print
+---
+# Source: custom-pod/templates/deployment.yaml
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: print-custom-pod-print
+  labels:
+    helm.sh/chart: custom-pod
+    app.kubernetes.io/version: "1.0"
+    app.kubernetes.io/managed-by: Helm
+    app.kubernetes.io/name: custom-pod
+    app.kubernetes.io/instance: print
+    app.kubernetes.io/component: print
+spec:
+  replicas: 2
+  revisionHistoryLimit: 3
+  strategy:
+    type: RollingUpdate
+  selector:
+    matchLabels:
+      app.kubernetes.io/name: custom-pod
+      app.kubernetes.io/instance: print
+      app.kubernetes.io/component: print
+  template:
+    metadata:
+      labels:
+        app.kubernetes.io/name: custom-pod
+        app.kubernetes.io/instance: print
+        app.kubernetes.io/component: print
+    spec:
+
+      serviceAccountName: default
+      securityContext:
+        {}
+      initContainers:
+        - name: jmx-exporter
+          securityContext:
+            runAsNonRoot: true
+            runAsUser: 33
+          image: "bitnami/jmx-exporter:0.18.0"
+          imagePullPolicy: IfNotPresent
+          terminationMessagePolicy: FallbackToLogsOnError
+          resources:
+            limits:
+              cpu: 0.2
+              ephemeral-storage: 32Mi
+              memory: 16Mi
+            requests:
+              cpu: 0.1
+              ephemeral-storage: 16Mi
+              memory: 8Mi
+          command:
+            - /bin/bash
+            - -c
+          args:
+            - cp /opt/bitnami/jmx-exporter/jmx_prometheus_javaagent.jar /jmx-exporter-jar/
+          volumeMounts:
+            - mountPath: /jmx-exporter-jar/
+              name: jmx-exporter-jar
+
+      containers:
+        - name: print
+          securityContext:
+            runAsNonRoot: true
+            runAsUser: 33
+          image: "camptocamp/mapfish_print:3.30"
+          imagePullPolicy: IfNotPresent
+          env:
+            - name: "CATALINA_CACHEDURATION"
+              value: "60"
+            - name: "EXTRA_CATALINA_OPTS"
+              value: ' '
+            - name: "EXTRA_JARS"
+              value: /usr/local/tomcat/webapps/ROOT/print-apps/mfp-extras/jars
+            - name: "EXTRA_JAVA_OPTS"
+              value: ' '
+            - name: "HTTP_CONNECTIONREQUESTTIMEOUT"
+              value: "30000"
+            - name: "HTTP_CONNECTTIMEOUT"
+              value: "30000"
+            - name: "HTTP_SOCKETTIMEOUT"
+              value: "30000"
+            - name: "JAVA_GCHEAPFREELIMIT"
+              value: "10"
+            - name: "JAVA_GCTIMELIMIT"
+              value: "70"
+            - name: "JAVA_INETADDR_TTL"
+              value: "30"
+            - name: "JAVA_INITIALRAMPERCENTAGE"
+              value: "50"
+            - name: "JAVA_MAMRAMPERCENTAGE"
+              value: "50"
+            - name: "JAVA_MAXRAMPERCENTAGE"
+              value: "80"
+            - name: "JAVA_MINRAMPERCENTAGE"
+              value: "50"
+            - name: "LOG_LEVEL"
+              value: INFO
+            - name: "PGDATABASE"
+              valueFrom:
+                secretKeyRef:
+                  name: "database"
+                  key: "database"
+            - name: "PGHOST"
+              valueFrom:
+                secretKeyRef:
+                  name: "database"
+                  key: "hostname"
+            - name: "PGOPTIONS"
+              value: -c statement_timeout=30000
+            - name: "PGPASSWORD"
+              valueFrom:
+                secretKeyRef:
+                  name: "database"
+                  key: "password"
+            - name: "PGPORT"
+              valueFrom:
+                secretKeyRef:
+                  name: "database"
+                  key: "port"
+            - name: "PGSCHEMA"
+              value: print
+            - name: "PGUSER"
+              valueFrom:
+                secretKeyRef:
+                  name: "database"
+                  key: "username"
+            - name: "PRINT_MAXCONTENT_LENGTH"
+              value: "100000000"
+            - name: "PRINT_MAXNUMBEROFRUNNINGPRINTJOBS"
+              value: "2"
+            - name: "PRINT_POLL_INTERVAL"
+              value: "1"
+            - name: "PRINT_YAML_MAX_ALIASES"
+              value: "200"
+            - name: "SENTRY_DSN"
+              value: https://...@....ingest.sentry.io/...
+            - name: "SENTRY_ENVIRONMENT"
+              value: prod
+            - name: "SENTRY_RELEASE"
+              valueFrom:
+                configMapKeyRef:
+                  name: print-custom-pod-metadata
+                  key: "SERVICE_PRINT_CONTAINER_PRINT_IMAGE_TAG"
+            - name: "SENTRY_TAGS"
+              value: service:print
+            - name: "TOMCAT_LOG_TYPE"
+              value: json
+            - name: "CATALINA_OPTS"
+              value: -Dmapfish.maxContentLength=$(PRINT_MAXCONTENT_LENGTH) -DmaxNumberOfRunningPrintJobs=$(PRINT_MAXNUMBEROFRUNNINGPRINTJOBS)
+                -Dsentry.dsn=$(SENTRY_DSN) -Dsentry.release=$(SENTRY_RELEASE) -Dsentry.environment=$(SENTRY_ENVIRONMENT)
+                -Dsentry.tags=$(SENTRY_TAGS) -Ddb.host=$(PGHOST) -Ddb.port=$(PGPORT) -Ddb.username=$(PGUSER)
+                -Ddb.password=$(PGPASSWORD) -Ddb.name=$(PGDATABASE) -Ddb.schema=$(PGSCHEMA) -DcacheDuration=$(CATALINA_CACHEDURATION)
+                -Dsun.net.inetaddr.ttl=$(JAVA_INETADDR_TTL) -Dhttp.connectionRequestTimeout=$(HTTP_CONNECTIONREQUESTTIMEOUT)
+                -Dhttp.connectTimeout=$(HTTP_CONNECTTIMEOUT) -Dhttp.socketTimeout=$(HTTP_SOCKETTIMEOUT)
+                -javaagent:/usr/local/tomcat/jmx-lib/jmx_prometheus_javaagent.jar=9110:/usr/local/tomcat/jmx-exporter.yaml
+                $(EXTRA_CATALINA_OPTS)
+            - name: "JAVA_OPTS"
+              value: -XX:MinRAMPercentage=$(JAVA_MINRAMPERCENTAGE) -XX:MaxRAMPercentage=$(JAVA_MAXRAMPERCENTAGE)
+                -XX:InitialRAMPercentage=$(JAVA_INITIALRAMPERCENTAGE) -XX:GCTimeLimit=$(JAVA_GCTIMELIMIT)
+                -XX:GCHeapFreeLimit=$(JAVA_GCHEAPFREELIMIT) -XX:+ExitOnOutOfMemoryError $(EXTRA_JAVA_OPTS)
+          terminationMessagePolicy: FallbackToLogsOnError
+          resources:
+            limits:
+              cpu: "2"
+              ephemeral-storage: 256Mi
+              memory: 2Gi
+            requests:
+              memory: 1Gi
+          volumeMounts:
+            - mountPath: /usr/local/tomcat/jmx-exporter.yaml
+              name: jmx-exporter-config
+              subPath: jmx-exporter.yaml
+            - mountPath: /usr/local/tomcat/jmx-lib
+              name: jmx-exporter-jar
+
+          ports:
+            - name: http
+              containerPort: 8080
+              protocol: TCP
+            - name: prometheus
+              containerPort: 9111
+              protocol: TCP
+
+
+      volumes:
+        - name: jmx-exporter-config
+          configMap:
+            name: print-custom-pod
+            items:
+            - key: jmxExporterYaml
+              path: jmx-exporter.yaml
+        - name: jmx-exporter-jar
+          emptyDir: {}
+---
+# Source: custom-pod/templates/ingress.yaml
+apiVersion: networking.k8s.io/v1
+kind: Ingress
+metadata:
+  name: print-custom-pod-main
+  labels:
+    helm.sh/chart: custom-pod
+    app.kubernetes.io/version: "1.0"
+    app.kubernetes.io/managed-by: Helm
+    app.kubernetes.io/name: custom-pod
+    app.kubernetes.io/instance: print
+    app.kubernetes.io/component: main
+spec:
+# Add tls only if ingress.tls.enabled is set to true and the other fields are complete.
+  tls:
+    - hosts:
+        - "print.example.com"
+      secretName: print-custom-pod-main
+  rules:
+    - host: "print.example.com"
+      http:
+        paths:
+          - path: "/"
+            pathType: Prefix
+            backend:
+              service:
+                name: print-custom-pod-print
+                port:
+                  number: 80
+---
+# Source: custom-pod/templates/ingress.yaml
+apiVersion: networking.k8s.io/v1
+kind: Ingress
+metadata:
+  name: print-custom-pod-test
+  labels:
+    helm.sh/chart: custom-pod
+    app.kubernetes.io/version: "1.0"
+    app.kubernetes.io/managed-by: Helm
+    app.kubernetes.io/name: custom-pod
+    app.kubernetes.io/instance: print
+    app.kubernetes.io/component: test
+spec:
+# Add tls only if ingress.tls.enabled is set to true and the other fields are complete.
+  tls:
+    - hosts:
+        - "my-technical-url.example.com"
+      secretName: print-custom-pod-test
+  rules:
+    - host: "my-technical-url.example.com"
+      http:
+        paths:
+          - path: "/"
+            pathType: Prefix
+            backend:
+              service:
+                name: print-custom-pod-print
+                port:
+                  number: 80
+---
+# Source: custom-pod/templates/podmonitor.yaml
+apiVersion: monitoring.coreos.com/v1
+kind: PodMonitor
+metadata:
+  name: print-custom-pod-print
+  labels:
+    helm.sh/chart: custom-pod
+    app.kubernetes.io/version: "1.0"
+    app.kubernetes.io/managed-by: Helm
+    app.kubernetes.io/name: custom-pod
+    app.kubernetes.io/instance: print
+    app.kubernetes.io/component: print
+spec:
+  selector:
+    matchLabels:
+      app.kubernetes.io/name: custom-pod
+      app.kubernetes.io/instance: print
+      app.kubernetes.io/component: print
+  podMetricsEndpoints:
+    -
+      honorLabels: true
+      interval: 10s
+      port: prometheus
diff --git a/tests/print.yaml b/tests/print.yaml
new file mode 100644
index 0000000..7c24074
--- /dev/null
+++ b/tests/print.yaml
@@ -0,0 +1,235 @@
+metadata:
+  enabled: true
+
+securityContext:
+  runAsNonRoot: true
+  runAsUser: 33 # www-data
+
+ingress:
+  enabled: true
+  hostGroups:
+    test:
+      tls:
+        enabled: true
+      hosts:
+        - my-technical-url.example.com
+    main:
+      tls:
+        enabled: true
+      hosts:
+        - print.example.com
+
+configMaps:
+  content:
+    jmxExporterYaml:
+      type: yaml
+      value:
+        startDelaySeconds: 30
+        username:
+        password:
+        ssl: false
+        lowercaseOutputLabelNames: true
+        lowercaseOutputName: true
+
+services:
+  print:
+    enabled: true
+    replicaCount: 2
+
+    pdb:
+      enabled: true
+
+    ingress:
+      enabled: true
+      path: /
+
+    service:
+      type: ClusterIP
+      servicePort: 80
+      ports:
+        - name: http
+          port: 8080
+          protocol: TCP
+          targetPort: http
+
+    podMonitor:
+      enabled: true
+      endpoint:
+        port: prometheus
+        interval: 10s
+        honorLabels: true
+
+    volumes:
+      jmx-exporter-jar:
+        emptyDir: {}
+      jmx-exporter-config:
+        configMap:
+          name: self
+          items:
+            - key: jmxExporterYaml
+              path: jmx-exporter.yaml
+
+    initContainers:
+      jmx-exporter:
+        image:
+          repository: bitnami/jmx-exporter
+          tag: 0.18.0
+        command:
+          - /bin/bash
+          - -c
+        args:
+          - cp /opt/bitnami/jmx-exporter/jmx_prometheus_javaagent.jar /jmx-exporter-jar/
+        resources:
+          requests:
+            ephemeral-storage: 16Mi
+            memory: 8Mi
+            cpu: 0.1
+          limits:
+            ephemeral-storage: 32Mi
+            memory: 16Mi
+            cpu: 0.2
+        volumeMounts:
+          /jmx-exporter-jar/:
+            name: jmx-exporter-jar
+
+    containers:
+      print:
+        image:
+          repository: camptocamp/mapfish_print
+          tag: '3.30'
+        env:
+          LOG_LEVEL:
+            value: INFO
+          TOMCAT_LOG_TYPE:
+            value: json
+          PGHOST:
+            type: secret
+            name: database
+            key: hostname
+          PGPORT:
+            type: secret
+            name: database
+            key: port
+          PGDATABASE:
+            type: secret
+            name: database
+            key: database
+          PGUSER:
+            type: secret
+            name: database
+            key: username
+          PGPASSWORD:
+            type: secret
+            name: database
+            key: password
+          PGOPTIONS:
+            value: -c statement_timeout=30000
+          PGSCHEMA:
+            value: print
+          PRINT_YAML_MAX_ALIASES:
+            value: '200'
+          PRINT_POLL_INTERVAL:
+            value: '1'
+          PRINT_MAXCONTENT_LENGTH:
+            value: '100000000' # 100 MB
+          PRINT_MAXNUMBEROFRUNNINGPRINTJOBS:
+            value: '2'
+          EXTRA_JARS:
+            value: /usr/local/tomcat/webapps/ROOT/print-apps/mfp-extras/jars
+          EXTRA_JAVA_OPTS:
+            value: ' '
+          EXTRA_CATALINA_OPTS:
+            value: ' '
+          # [ms]
+          HTTP_CONNECTIONREQUESTTIMEOUT:
+            value: '30000'
+          HTTP_CONNECTTIMEOUT:
+            value: '30000'
+          HTTP_SOCKETTIMEOUT:
+            value: '30000'
+          CATALINA_CACHEDURATION:
+            value: '60'
+          # <Non heap percentage> = 800Mo / <limit.memory> * 100 = 9.8
+          # => good value: 90 - <Non heap percentage>
+          JAVA_MAXRAMPERCENTAGE:
+            value: '80'
+          JAVA_INETADDR_TTL:
+            value: '30'
+          JAVA_MINRAMPERCENTAGE:
+            value: '50'
+          JAVA_MAMRAMPERCENTAGE:
+            value: '50'
+          JAVA_INITIALRAMPERCENTAGE:
+            value: '50'
+          JAVA_GCTIMELIMIT:
+            value: '70'
+          JAVA_GCHEAPFREELIMIT:
+            value: '10'
+          # useful:
+          # kubectl -n gmf-mutualize-int exec deployments/mutualize-mutualize-print -c print -- bash -c 'java ${JAVA_OPTS} -XshowSettings:vm  -version'
+          # kubectl -n gmf-mutualize-int exec deployments/mutualize-mutualize-print -c print -- bash -c 'java ${JAVA_OPTS} -XX:+PrintFlagsFinal -version'
+          JAVA_OPTS:
+            value: >-
+              -XX:MinRAMPercentage=$(JAVA_MINRAMPERCENTAGE)
+              -XX:MaxRAMPercentage=$(JAVA_MAXRAMPERCENTAGE)
+              -XX:InitialRAMPercentage=$(JAVA_INITIALRAMPERCENTAGE)
+              -XX:GCTimeLimit=$(JAVA_GCTIMELIMIT)
+              -XX:GCHeapFreeLimit=$(JAVA_GCHEAPFREELIMIT)
+              -XX:+ExitOnOutOfMemoryError
+              $(EXTRA_JAVA_OPTS)
+            order: 1
+          CATALINA_OPTS:
+            value: >-
+              -Dmapfish.maxContentLength=$(PRINT_MAXCONTENT_LENGTH)
+              -DmaxNumberOfRunningPrintJobs=$(PRINT_MAXNUMBEROFRUNNINGPRINTJOBS)
+              -Dsentry.dsn=$(SENTRY_DSN)
+              -Dsentry.release=$(SENTRY_RELEASE)
+              -Dsentry.environment=$(SENTRY_ENVIRONMENT)
+              -Dsentry.tags=$(SENTRY_TAGS)
+              -Ddb.host=$(PGHOST)
+              -Ddb.port=$(PGPORT)
+              -Ddb.username=$(PGUSER)
+              -Ddb.password=$(PGPASSWORD)
+              -Ddb.name=$(PGDATABASE)
+              -Ddb.schema=$(PGSCHEMA)
+              -DcacheDuration=$(CATALINA_CACHEDURATION)
+              -Dsun.net.inetaddr.ttl=$(JAVA_INETADDR_TTL)
+              -Dhttp.connectionRequestTimeout=$(HTTP_CONNECTIONREQUESTTIMEOUT)
+              -Dhttp.connectTimeout=$(HTTP_CONNECTTIMEOUT)
+              -Dhttp.socketTimeout=$(HTTP_SOCKETTIMEOUT)
+              -javaagent:/usr/local/tomcat/jmx-lib/jmx_prometheus_javaagent.jar=9110:/usr/local/tomcat/jmx-exporter.yaml
+              $(EXTRA_CATALINA_OPTS)
+            order: 1
+          SENTRY_DSN:
+            value: https://...@....ingest.sentry.io/...
+          SENTRY_TAGS:
+            value: service:print
+          SENTRY_RELEASE:
+            type: configMap
+            name: self-metadata
+            key: SERVICE_PRINT_CONTAINER_PRINT_IMAGE_TAG
+          SENTRY_ENVIRONMENT:
+            value: prod
+
+        ports:
+          prometheus:
+            containerPort: 9111
+            protocol: TCP
+          http:
+            containerPort: 8080
+            protocol: TCP
+
+        volumeMounts:
+          /usr/local/tomcat/jmx-exporter.yaml:
+            name: jmx-exporter-config
+            subPath: jmx-exporter.yaml
+          /usr/local/tomcat/jmx-lib:
+            name: jmx-exporter-jar
+
+        resources:
+          requests:
+            memory: 1Gi
+          limits:
+            memory: 2Gi
+            cpu: '2'
+            ephemeral-storage: 256Mi