Create Dockerfile

Dockerfile

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+FROM ubuntu:22.04
+
+# =========================================
+#         LIGHTNING VPS SYSTEM
+# =========================================
+
+ENV DEBIAN_FRONTEND=noninteractive
+ENV HOSTNAME=LightningVPS
+ENV TZ=Asia/Kolkata
+
+# =========================================
+#         INSTALL PACKAGES
+# =========================================
+
+RUN apt-get update && apt-get install -y --no-install-recommends \
+    ca-certificates \
+    curl \
+    wget \
+    git \
+    sudo \
+    docker.io \
+    htop \
+    btop \
+    neovim \
+    lsof \
+    tmux \
+    screen \
+    nano \
+    unzip \
+    zip \
+    openssh-server \
+    cron \
+    net-tools \
+    iproute2 \
+    software-properties-common \
+    gnupg \
+    qemu-system-x86 \
+    qemu-kvm \
+    libvirt-daemon-system \
+    libvirt-clients \
+    bridge-utils \
+    virtinst \
+    cpu-checker \
+    cloud-image-utils \
+    && apt-get clean \
+    && rm -rf /var/lib/apt/lists/*
+
+# =========================================
+#         ENABLE KVM PERFORMANCE
+# =========================================
+
+RUN mkdir -p /var/run/sshd
+
+# =========================================
+#         INSTALL CODE-SERVER
+# =========================================
+
+RUN curl -fsSL https://code-server.dev/install.sh | sh
+
+# =========================================
+#         PERFORMANCE TWEAKS
+# =========================================
+
+RUN echo "fs.file-max=2097152" >> /etc/sysctl.conf && \
+    echo "net.core.somaxconn=65535" >> /etc/sysctl.conf && \
+    echo "net.ipv4.tcp_tw_reuse=1" >> /etc/sysctl.conf && \
+    echo "net.ipv4.ip_local_port_range=1024 65000" >> /etc/sysctl.conf && \
+    echo "vm.swappiness=10" >> /etc/sysctl.conf && \
+    echo "vm.dirty_ratio=15" >> /etc/sysctl.conf && \
+    echo "vm.dirty_background_ratio=5" >> /etc/sysctl.conf
+
+# =========================================
+#         CREATE WORKSPACE
+# =========================================
+
+WORKDIR /workspace
+
+# =========================================
+#         STARTUP SCRIPT
+# =========================================
+
+RUN echo '#!/bin/bash\n\
+echo "Starting Lightning VPS..."\n\
+service ssh start\n\
+dockerd > /var/log/docker.log 2>&1 &\n\
+code-server --bind-addr 0.0.0.0:7860 --auth none /workspace > /var/log/code-server.log 2>&1 &\n\
+while true; do sleep 1000; done' > /start.sh && chmod +x /start.sh
+
+# =========================================
+#         EXPOSE PORTS
+# =========================================
+
+EXPOSE 7860
+EXPOSE 22
+
+# =========================================
+#         START CONTAINER
+# =========================================
+
+CMD ["/bin/bash", "/start.sh"]