Initial Docmost Cloudron package

Dockerfile

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+FROM cloudron/base:5.0.0
+
+MAINTAINER Cloudron Support <support@cloudron.io>
+
+# Install Node.js 20 and pnpm
+RUN curl -fsSL https://deb.nodesource.com/setup_20.x | bash - && \
+    apt-get install -y nodejs && \
+    npm install -g pnpm@latest
+
+# Set up application directory
+WORKDIR /app/code
+
+# Clone and build Docmost
+RUN git clone https://github.com/docmost/docmost.git . && \
+    pnpm install && \
+    pnpm build
+
+# Create necessary directories
+RUN mkdir -p /tmp/data /app/data && \
+    chown -R cloudron:cloudron /app/data /tmp/data
+
+# Copy startup scripts
+COPY start.sh /app/code/
+COPY nginx.conf /etc/nginx/sites-available/default
+
+# Make scripts executable
+RUN chmod +x /app/code/start.sh
+
+# Install supervisord for process management
+RUN apt-get update && \
+    apt-get install -y supervisor && \
+    rm -rf /var/lib/apt/lists/*
+
+COPY supervisord.conf /etc/supervisor/conf.d/supervisord.conf
+
+EXPOSE 3000
+
+CMD [ "/app/code/start.sh" ]