Adds mattermost app.

mattermost/app.yaml

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+name: mattermost
+is: mattermost
+description: Mattermost is a self-hosted, open-source team messaging platform offering secure channels, file sharing, and integrations as a Slack alternative.
+icon: https://cdn.jsdelivr.net/gh/homarr-labs/dashboard-icons/svg/mattermost.svg
+latest: "10"

mattermost/versions/10/README.md

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+# Mattermost
+
+Mattermost is an open-source team messaging platform, a self-hosted alternative to Slack.
+
+## Dependencies
+
+- **PostgreSQL** - Database for storing messages and team data
+
+## Configuration
+
+Key settings in `config.yaml`:
+
+- **domain** - Where Mattermost will be accessible
+- **storage** - Persistent volume size (default: `2Gi`)
+- **db.name** - Database name (default: `mattermost`)
+
+## First-Time Setup
+
+1. Add and deploy the app:
+   ```bash
+   wild app add mattermost
+   wild app deploy mattermost
+   ```
+
+2. Visit the app URL — on first load you will be prompted to create an administrator account (email + password).
+
+3. After creating the admin account, complete the onboarding wizard to set up your first team.
+
+## Notes
+
+- The setup wizard only runs on first launch
+- Email invitations require SMTP to be configured in **System Console → Environment → SMTP**
+- Push notifications for mobile apps require a push proxy (or Mattermost Cloud push notification service)

mattermost/versions/10/db-init-job.yaml

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+apiVersion: batch/v1
+kind: Job
+metadata:
+  name: mattermost-db-init
+  labels:
+    component: db-init
+spec:
+  template:
+    metadata:
+      labels:
+        component: db-init
+    spec:
+      restartPolicy: OnFailure
+      securityContext:
+        runAsNonRoot: true
+        runAsUser: 999
+        runAsGroup: 999
+        seccompProfile:
+          type: RuntimeDefault
+      containers:
+        - name: postgres-init
+          image: postgres:15
+          securityContext:
+            allowPrivilegeEscalation: false
+            capabilities:
+              drop:
+                - ALL
+            readOnlyRootFilesystem: false
+          env:
+            - name: PGHOST
+              value: {{ .db.host }}
+            - name: PGUSER
+              value: postgres
+            - name: PGPASSWORD
+              valueFrom:
+                secretKeyRef:
+                  name: mattermost-secrets
+                  key: postgres.password
+            - name: DB_NAME
+              value: {{ .db.name }}
+            - name: DB_USER
+              value: {{ .db.user }}
+            - name: DB_PASSWORD
+              valueFrom:
+                secretKeyRef:
+                  name: mattermost-secrets
+                  key: dbPassword
+          command:
+            - /bin/bash
+            - -c
+            - |
+              set -e
+              until pg_isready; do sleep 2; done
+              psql -c "CREATE DATABASE ${DB_NAME};" || echo "Database already exists"
+              psql -c "CREATE USER ${DB_USER} WITH PASSWORD '${DB_PASSWORD}';" || echo "User already exists"
+              psql -c "ALTER USER ${DB_USER} WITH PASSWORD '${DB_PASSWORD}';"
+              psql -c "GRANT ALL PRIVILEGES ON DATABASE ${DB_NAME} TO ${DB_USER};"
+              psql -d ${DB_NAME} -c "GRANT ALL ON SCHEMA public TO ${DB_USER};"
+              echo "Done"

mattermost/versions/10/deployment.yaml

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+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: mattermost
+  namespace: mattermost
+spec:
+  replicas: 1
+  strategy:
+    type: Recreate
+  selector:
+    matchLabels:
+      component: web
+  template:
+    metadata:
+      labels:
+        component: web
+    spec:
+      securityContext:
+        runAsNonRoot: true
+        runAsUser: 2000
+        runAsGroup: 2000
+        fsGroup: 2000
+        seccompProfile:
+          type: RuntimeDefault
+      containers:
+        - name: mattermost
+          image: mattermost/mattermost-team-edition:10.8.1
+          ports:
+            - name: http
+              containerPort: 8065
+              protocol: TCP
+          env:
+            - name: MM_SERVICESETTINGS_SITEURL
+              value: https://{{ .domain }}
+            - name: MM_SQLSETTINGS_DRIVERNAME
+              value: postgres
+            - name: MM_SQLSETTINGS_DATASOURCE
+              valueFrom:
+                secretKeyRef:
+                  name: mattermost-secrets
+                  key: dbUrl
+            - name: MM_FILESETTINGS_DIRECTORY
+              value: /mattermost/data/
+            - name: MM_PLUGINSETTINGS_PLUGINDIRECTORY
+              value: /mattermost/plugins
+            - name: MM_CLIENTPLUGINSSETTINGS_PLUGINDIRECTORY
+              value: /mattermost/client/plugins
+            - name: MM_LOGSETTINGS_CONSOLELEVEL
+              value: INFO
+          resources:
+            limits:
+              cpu: 500m
+              ephemeral-storage: 1Gi
+              memory: 1Gi
+            requests:
+              cpu: 50m
+              ephemeral-storage: 50Mi
+              memory: 256Mi
+          volumeMounts:
+            - name: mattermost-data
+              mountPath: /mattermost/data
+            - name: mattermost-plugins
+              mountPath: /mattermost/plugins
+          livenessProbe:
+            httpGet:
+              path: /api/v4/system/ping
+              port: 8065
+            initialDelaySeconds: 60
+            timeoutSeconds: 5
+            periodSeconds: 15
+            failureThreshold: 6
+          readinessProbe:
+            httpGet:
+              path: /api/v4/system/ping
+              port: 8065
+            initialDelaySeconds: 30
+            timeoutSeconds: 3
+            periodSeconds: 10
+            failureThreshold: 3
+          securityContext:
+            allowPrivilegeEscalation: false
+            capabilities:
+              drop:
+                - ALL
+            readOnlyRootFilesystem: false
+      volumes:
+        - name: mattermost-data
+          persistentVolumeClaim:
+            claimName: mattermost-data
+        - name: mattermost-plugins
+          persistentVolumeClaim:
+            claimName: mattermost-plugins
+      restartPolicy: Always

mattermost/versions/10/ingress.yaml

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+apiVersion: networking.k8s.io/v1
+kind: Ingress
+metadata:
+  name: mattermost
+  namespace: mattermost
+  annotations:
+    external-dns.alpha.kubernetes.io/target: {{ .externalDnsDomain }}
+    external-dns.alpha.kubernetes.io/cloudflare-proxied: "false"
+    external-dns.alpha.kubernetes.io/ttl: "60"
+spec:
+  ingressClassName: traefik
+  rules:
+    - host: {{ .domain }}
+      http:
+        paths:
+          - path: /
+            pathType: Prefix
+            backend:
+              service:
+                name: mattermost
+                port:
+                  number: 80
+  tls:
+    - hosts:
+        - {{ .domain }}
+      secretName: {{ .tlsSecretName }}

mattermost/versions/10/kustomization.yaml

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+apiVersion: kustomize.config.k8s.io/v1beta1
+kind: Kustomization
+namespace: mattermost
+labels:
+  - includeSelectors: true
+    pairs:
+      app: mattermost
+      managedBy: kustomize
+      partOf: wild-cloud
+resources:
+  - namespace.yaml
+  - db-init-job.yaml
+  - deployment.yaml
+  - service.yaml
+  - ingress.yaml
+  - pvc.yaml

mattermost/versions/10/manifest.yaml

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+version: 10.8.1-1
+requires:
+  - name: postgres
+defaultConfig:
+  namespace: mattermost
+  externalDnsDomain: '{{ .cloud.domain }}'
+  domain: mattermost.{{ .cloud.domain }}
+  tlsSecretName: wildcard-wild-cloud-tls
+  storage: 2Gi
+  db:
+    host: '{{ .apps.postgres.host }}'
+    port: '{{ .apps.postgres.port }}'
+    name: mattermost
+    user: mattermost
+defaultSecrets:
+  - key: dbPassword
+  - key: dbUrl
+    default: 'postgres://{{ .app.db.user }}:{{ .secrets.dbPassword }}@{{ .app.db.host }}:{{ .app.db.port }}/{{ .app.db.name }}?sslmode=disable&connect_timeout=10'
+requiredSecrets:
+  - postgres.password

mattermost/versions/10/namespace.yaml

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+apiVersion: v1
+kind: Namespace
+metadata:
+  name: mattermost

mattermost/versions/10/pvc.yaml

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+apiVersion: v1
+kind: PersistentVolumeClaim
+metadata:
+  name: mattermost-data
+  namespace: mattermost
+spec:
+  accessModes:
+    - ReadWriteOnce
+  resources:
+    requests:
+      storage: {{ .storage }}
+---
+apiVersion: v1
+kind: PersistentVolumeClaim
+metadata:
+  name: mattermost-plugins
+  namespace: mattermost
+spec:
+  accessModes:
+    - ReadWriteOnce
+  resources:
+    requests:
+      storage: 1Gi

mattermost/versions/10/service.yaml

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+apiVersion: v1
+kind: Service
+metadata:
+  name: mattermost
+  namespace: mattermost
+spec:
+  selector:
+    component: web
+  ports:
+    - name: http
+      port: 80
+      targetPort: 8065
+      protocol: TCP