General optimations

roles/web-svc-simpleicons/templates/Dockerfile.j2

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+FROM node:latest AS builder
+
+WORKDIR /app
+COPY ./config/package*.json ./
+
+RUN npm install
+
+FROM node:latest
+
+WORKDIR /app
+COPY --from=builder /app/node_modules ./node_modules
+COPY ./config/server.js .
+
+EXPOSE {{ container_port }}
+
+CMD ["node", "server.js"]

roles/web-svc-simpleicons/templates/docker-compose.yml.j2

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+{% include 'roles/docker-compose/templates/base.yml.j2' %}
+  application:
+    build:
+      context: .
+      dockerfile: Dockerfile
+    image: simpleicons-server:latest
+    container_name: simpleicons-server
+    ports:
+      - "{{ports.localhost.http[application_id]}}:{{ container_port }}"
+{% include 'roles/docker-container/templates/base.yml.j2' %}
+{% include 'roles/docker-container/templates/networks.yml.j2' %}
+{% include 'roles/docker-container/templates/healthcheck/curl.yml.j2' %}
+
+{% include 'roles/docker-compose/templates/networks.yml.j2' %}

roles/web-svc-simpleicons/templates/env.j2

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+{# This file just exists, because the framework requests it. #}

roles/web-svc-simpleicons/templates/package.json.j2

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+{
+  "name": "simpleicons-server",
+  "type": "module",
+  "dependencies": {
+    "express": "*",
+    "simple-icons": "*",
+    "sharp": "*"
+  }
+}

roles/web-svc-simpleicons/templates/server.js.j2

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+import express from 'express';
+import * as icons from 'simple-icons';
+import sharp from 'sharp';
+
+const app = express();
+const port = {{ container_port }};
+
+// Helper: convert 'nextcloud' → 'siNextcloud'
+function getExportName(slug) {
+  return 'si' + slug
+    .split('-')
+    .map(part => part[0].toUpperCase() + part.slice(1))
+    .join('');
+}
+
+// Root: redirect to your documentation
+app.get('/', (req, res) => {
+  res.redirect('{{ domains | get_url('sphinx', web_protocol) }}/roles/web-app-{{ application_id }}/README.html');
+});
+
+// GET /:slug.svg
+app.get('/:slug.svg', (req, res) => {
+  const slug = req.params.slug.toLowerCase();
+  const exportName = getExportName(slug);
+  const icon = icons[exportName];
+
+  if (!icon) {
+    return res.status(404).send('Icon not found');
+  }
+
+  res.type('image/svg+xml');
+  res.send(icon.svg);
+});
+
+// GET /:slug.png?size=...
+app.get('/:slug.png', async (req, res) => {
+  const slug = req.params.slug.toLowerCase();
+  const size = parseInt(req.query.size, 10) || 128;
+  const exportName = getExportName(slug);
+  const icon = icons[exportName];
+
+  if (!icon) {
+    return res.status(404).send('Icon not found');
+  }
+
+  try {
+    const pngBuffer = await sharp(Buffer.from(icon.svg))
+      .resize(size, size)
+      .png()
+      .toBuffer();
+
+    res.type('image/png');
+    res.send(pngBuffer);
+  } catch (err) {
+    console.error('PNG generation error:', err);
+    res.status(500).send('PNG generation error');
+  }
+});
+
+app.listen(port, () => {
+  console.log(`Simple-Icons server listening at http://0.0.0.0:${port}`);
+});