feat(paperless-ngx): add tika and gotenberg (#37727)

**Description**
Addition of the optional Tika (and with it Gotenberg) add-on.

Completely optional and non breaking, creates two additional containers
when enabled, so could be merged into the existing Paperless chart. I'll
open another pull request after incubation is finished.

Dependencies get fetched from docker.io, both times the official source.

**⚙️ Type of change**

- [X] ⚙️ Feature/App addition
- [ ] 🪛 Bugfix
- [ ] ⚠️ Breaking change (fix or feature that would cause existing
functionality to not work as expected)
- [ ] 🔃 Refactor of current code
- [ ] 📜 Documentation Changes

**🧪 How Has This Been Tested?**
In my head.

**📃 Notes:**
This should work out of the box, but I would like to test further out of
incubate. Could probably

**✔️ Checklist:**

- [x] ⚖️ My code follows the style guidelines of this project
- [x] 👀 I have performed a self-review of my own code
- [ ] #️⃣ I have commented my code, particularly in hard-to-understand
areas
- [ ] 📄 I have made changes to the documentation
- [ ] 🧪 I have added tests to this description that prove my fix is
effective or that my feature works
- [x] ⬆️ I increased versions for any altered app according to semantic
versioning
- [x] I made sure the title starts with `feat(chart-name):`,
`fix(chart-name):`, `chore(chart-name):`, `docs(chart-name):` or
`fix(docs):`

**➕ App addition**

If this PR is an app addition please make sure you have done the
following.

- [ ] 🖼️ I have added an icon in the Chart's root directory called
`icon.png`

---

_Please don't blindly check all the boxes. Read them and only check
those that apply.
Those checkboxes are there for the reviewer to see what is this all
about and
the status of this PR with a quick glance._

charts/stable/paperless-ngx/Chart.yaml

@@ -2,8 +2,6 @@ annotations:
   artifacthub.io/links: |-
     - name: support
     url: https://discord.com/invite/tVsPTHWTtr
-  max_scale_version: 24.04.1
-  min_scale_version: 24.04.0
   truecharts.org/category: productivity
   truecharts.org/max_helm_version: "3.17"
   truecharts.org/min_helm_version: "3.14"
@@ -46,5 +44,5 @@ sources:
   - https://github.com/truecharts/charts/tree/master/charts/stable/paperless-ngx
   - https://paperless-ngx.readthedocs.io/en/latest/
 type: application
-version: 11.2.0
+version: 11.3.0
 

charts/stable/paperless-ngx/values.yaml

@@ -2,12 +2,34 @@ image:
   repository: ghcr.io/paperless-ngx/paperless-ngx
   pullPolicy: IfNotPresent
   tag: 2.17.1@sha256:ab72a0ab42a792228cdbe83342b99a48acd49f7890ae54b1ae8e04401fba24ee
+gotenbergImage:
+  repository: docker.io/gotenberg/gotenberg
+  pullPolicy: IfNotPresent
+  tag: 8.21@sha256:91486863744f7420ca985ee6cef7c216910e40faffd378f3da7c0fad724d01ba
+tikaImage:
+  repository: docker.io/apache/tika
+  pullPolicy: IfNotPresent
+  tag: 3.2.1.0@sha256:df12b41af58c9833e60bdc231ffc4b59f5b7a83bfe2d63e3dc7aab7da923abba
 service:
   main:
     ports:
       main:
         targetPort: 8000
         port: 10140
+  gotenberg:
+    enabled: "{{ .Values.tika.enabled }}"
+    ports:
+      gotenberg:
+        enabled: true
+        targetPort: 3000
+        port: 3000
+  tika:
+    enabled: "{{ .Values.tika.enabled }}"
+    ports:
+      tika:
+        enabled: true
+        targetPort: 9998
+        port: 9998
 persistence:
   data:
     enabled: true
@@ -22,12 +44,14 @@ persistence:
     enabled: false
 redis:
   enabled: true
-  redisUsername: default
+  redisUsername: "default"
 cnpg:
   main:
     enabled: true
-    user: paperless-ng
-    database: paperless-ng
+    user: "paperless-ng"
+    database: "paperless-ng"
+tika:
+  enabled: false
 
 securityContext:
   container:
@@ -65,6 +89,9 @@ workload:
             PAPERLESS_DBNAME: "{{ .Values.cnpg.main.database }}"
             PAPERLESS_DBUSER: "{{ .Values.cnpg.main.user }}"
             PAPERLESS_DBPORT: "5432"
+            PAPERLESS_TIKA_ENABLED: '{{ ternary 1 0 .Values.tika.enabled }}'
+            PAPERLESS_TIKA_GOTENBERG_ENDPOINT: '{{ printf "http://%v-gotenberg:%v" (include "tc.v1.common.lib.chart.names.fullname" $) .Values.service.gotenberg.ports.gotenberg.targetPort }}'
+            PAPERLESS_TIKA_ENDPOINT: '{{ printf "http://%v-tika:%v" (include "tc.v1.common.lib.chart.names.fullname" $) .Values.service.tika.ports.tika.targetPort }}'
             PAPERLESS_WEBSERVER_WORKERS: 2
             PAPERLESS_DBPASS:
               secretKeyRef:
@@ -88,3 +115,50 @@ workload:
             PAPERLESS_ADMIN_MAIL: "admin@admin.com"
             PAPERLESS_OCR_LANGUAGE: "eng"
             PAPERLESS_OCR_LANGUAGES: "eng fra deu spa ita"
+  gotenberg:
+    enabled: "{{ .Values.tika.enabled }}"
+    type: Deployment
+    podSpec:
+      containers:
+        gotenberg:
+          enabled: true
+          imageSelector: gotenbergImage
+          command:
+            - "gotenberg"
+            - "--chromium-disable-javascript=true"
+            - "--chromium-allow-list=file:///tmp/.*"
+          probes:
+            liveness:
+              type: http
+              path: /health
+              port: "{{ .Values.service.gotenberg.ports.gotenberg.port }}"
+            startup:
+              type: http
+              path: /health
+              port: "{{ .Values.service.gotenberg.ports.gotenberg.port }}"
+            readiness:
+              type: http
+              path: /health
+              port: "{{ .Values.service.gotenberg.ports.gotenberg.port }}"
+  tika:
+    enabled: "{{ .Values.tika.enabled }}"
+    type: Deployment
+    podSpec:
+      containers:
+        tika:
+          enabled: true
+          imageSelector: tikaImage
+          probes:
+            liveness:
+              type: http
+              path: /
+              port: "{{ .Values.service.tika.ports.tika.port }}"
+            startup:
+              type: http
+              path: /
+              port: "{{ .Values.service.tika.ports.tika.port }}"
+            readiness:
+              type: http
+              path: /
+              port: "{{ .Values.service.tika.ports.tika.port }}"
+