feat(piwigo) configure piwigo mariadb and admin credentials (#10444)

**Description**
Configure admin credentials and mariadb sidecar
⚒️ Fixes  # <!--(issue)-->

**⚙️ Type of change**

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

**🧪 How Has This Been Tested?**
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Please describe the tests that you ran to verify your changes. Provide
instructions so we can reproduce. Please also list any relevant details
for your test configuration
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**📃 Notes:**
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**✔️ 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 corresponding changes to the documentation
- [ ] ⚠️ My changes generate no new warnings
- [ ] 🧪 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

**➕ App addition**

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

- [ ] 🪞 I have opened a PR on
[truecharts/containers](https://github.com/truecharts/containers) adding
the container to TrueCharts mirror repo.
- [ ] 🖼️ I have added an icon in the Chart's root directory called
`icon.png`

---

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charts/incubator/piwigo/Chart.yaml

@@ -4,6 +4,10 @@ dependencies:
   - name: common
     repository: https://library-charts.truecharts.org
     version: 12.14.6
+  - condition: mariadb.enabled
+    name: mariadb
+    repository: https://deps.truecharts.org/
+    version: 7.0.62
 description: A photo gallery software for the web.
 home: https://truecharts.org/charts/incubator/piwigo
 icon: https://truecharts.org/img/hotlink-ok/chart-icons/piwigo.png
@@ -23,7 +27,7 @@ sources:
   - http://piwigo.org/
   - https://github.com/linuxserver/docker-piwigo
 type: application
-version: 6.0.0
+version: 6.1.0
 annotations:
   truecharts.org/catagories: |
     - media

charts/incubator/piwigo/questions.yaml

@@ -14,6 +14,42 @@ questions:
 # Include{containerBasic}
 # Include{containerAdvanced}
 
+  - variable: piwigo
+    group: App Configuration
+    label: Piwigo Configuration
+    schema:
+      additional_attrs: true
+      type: dict
+      attrs:
+        - variable: language
+          label: Language
+          description: Set the initial Language
+          schema:
+            type: string
+            default: "en_US"
+        - variable: admin_user
+          label: Admin user
+          description: Set the initial admin user
+          schema:
+            type: string
+            required: true
+            default: ""
+        - variable: admin_pass
+          label: Admin Password
+          description: Set the initial admin password
+          schema:
+            type: string
+            required: true
+            private: true
+            default: ""
+        - variable: admin_email
+          label: Admin Email
+          description: Set the initial admin email
+          schema:
+            type: string
+            required: true
+            default: ""
+
 # Include{containerConfig}
 # Include{serviceRoot}
         - variable: main

charts/incubator/piwigo/values.yaml

@@ -17,12 +17,32 @@ service:
         targetPort: 80
         port: 10027
 
+piwigo:
+  language: en_US
+  admin_user: admin
+  admin_pass: admin123
+  admin_email: admin@email.com
+
 workload:
   main:
     podSpec:
       containers:
         main:
-          env: {}
+          lifecycle:
+            postStart:
+              type: exec
+              command:
+                - /bin/sh
+                - -c
+                - |
+                  if [ -f "/config/POSTSETUP" ]; then
+                    echo "POSTSETUP exists, no further action is needed."
+                  else
+                    while ! curl -s -o -v /dev/null http://localhost/install.php; do sleep 1; done && \
+                    curl -v -X POST -d "language={{ .Values.piwigo.language }}&dbhost={{ .Values.mariadb.creds.plainhost | trimAll "\"" }}:3306&dbuser={{ .Values.mariadb.mariadbUsername }}&dbpasswd={{ .Values.mariadb.creds.mariadbPassword | trimAll "\"" }}&dbname={{ .Values.mariadb.mariadbDatabase }}&prefix=piwigo_&admin_name={{ .Values.piwigo.admin_user }}&admin_pass1={{ .Values.piwigo.admin_pass }}&admin_pass2={{ .Values.piwigo.admin_pass }}&admin_mail={{ .Values.piwigo.admin_email }}&install=Start+installation" http://localhost/install.php && \
+                    ( touch "/config/POSTSETUP" && echo "Created POSTSETUP!") || \
+                    ( echo "Failed to create POSTSETUP file..." && exit 1 )
+                  fi
 
 persistence:
   config:
@@ -36,6 +56,11 @@ persistence:
   varrun:
     enabled: true
 
+mariadb:
+  enabled: true
+  mariadbUsername: piwigo
+  mariadbDatabase: piwigo
+
 portal:
   open:
     enabled: true