Dockerfile.cnb
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# syntax=docker/dockerfile:1
# ================================================================
# Multi-stage build for minimal container image
# Uses COPY technique: builder stage downloads + extracts,
# final stage only copies runtime artifacts.
# ================================================================
# ---- Stage 1: Builder (downloads + extracts) ----
FROM debian:13.4-slim AS builder
RUN apt-get update && \
apt-get install -y --no-install-recommends \
ca-certificates curl unzip && \
rm -rf /var/lib/apt/lists/*
# Python (Miniconda)
RUN curl -sSLk https://mirrors.tuna.tsinghua.edu.cn/anaconda/miniconda/Miniconda3-py312_26.3.2-2-Linux-x86_64.sh \
-o /tmp/miniconda.sh && \
bash /tmp/miniconda.sh -b -p /usr/local/miniconda3 && \
rm /tmp/miniconda.sh && \
/usr/local/miniconda3/bin/conda clean -a -y
# Node.js (prebuilt binary, no build tools needed)
RUN curl -sSLk https://unofficial-builds.nodejs.org/download/release/v22.22.2/node-v22.22.2-linux-x64-glibc-217.tar.gz \
-o /tmp/node.tar.gz && \
tar -xzf /tmp/node.tar.gz -C /usr/local/ && \
rm /tmp/node.tar.gz && \
ln -sf /usr/local/node-v22.22.2-linux-x64-glibc-217/bin/node /usr/local/bin/node && \
ln -sf /usr/local/node-v22.22.2-linux-x64-glibc-217/bin/npm /usr/local/bin/npm
# Bun
RUN curl -fsSL https://bun.sh/install | BUN_INSTALL=/usr/local/bun bash
# opencode-ai + strip unnecessary platform binaries
RUN npm i -g opencode-ai --registry https://mirrors.cloud.tencent.com/npm/ && \
rm -rf /usr/local/node-v22.22.2-linux-x64-glibc-217/lib/node_modules/opencode-ai/node_modules/opencode-linux-x64-musl && \
rm -rf /usr/local/node-v22.22.2-linux-x64-glibc-217/lib/node_modules/opencode-ai/node_modules/opencode-linux-x64-baseline && \
rm -rf /usr/local/node-v22.22.2-linux-x64-glibc-217/lib/node_modules/opencode-ai/node_modules/opencode-linux-x64-baseline-musl && \
npm cache clean --force
# ---- Stage 2: Minimal final image ----
FROM debian:13.4-slim
# Mirror (China mainland)
RUN sed -i 's/deb.debian.org/mirrors.tencent.com/g' /etc/apt/sources.list.d/debian.sources
# System packages + Claude Code (single RUN layer for minimal size)
RUN apt-get update && \
apt-get install -y --no-install-recommends \
ca-certificates curl wget unzip \
git git-lfs \
zsh tmux \
ripgrep jq sudo \
vim \
tzdata locales \
lsof nload htop net-tools dnsutils \
openssh-server && \
# Claude Code official apt repo
install -d -m 0755 /etc/apt/keyrings && \
curl -fsSL https://downloads.claude.ai/keys/claude-code.asc \
-o /etc/apt/keyrings/claude-code.asc && \
chmod a+r /etc/apt/keyrings/claude-code.asc && \
echo "deb [signed-by=/etc/apt/keyrings/claude-code.asc] https://downloads.claude.ai/claude-code/apt/stable stable main" \
> /etc/apt/sources.list.d/claude-code.list && \
apt-get update && \
apt-get install -y --no-install-recommends claude-code && \
apt-get clean && \
rm -rf /var/lib/apt/lists/*
# Create non-root user
RUN useradd -m -s /bin/bash user && \
echo "user:123456" | chpasswd && \
adduser user sudo && \
echo "user ALL=(ALL) NOPASSWD:ALL" >> /etc/sudoers
# Copy Python/Node/Bun/opencode from builder (COPY technique)
COPY --from=builder /usr/local/miniconda3 /usr/local/miniconda3
COPY --from=builder /usr/local/node-v22.22.2-linux-x64-glibc-217 /usr/local/node-v22.22.2-linux-x64-glibc-217
COPY --from=builder /usr/local/bun /usr/local/bun
RUN ln -sf /usr/local/node-v22.22.2-linux-x64-glibc-217/bin/node /usr/local/bin/node && \
ln -sf /usr/local/node-v22.22.2-linux-x64-glibc-217/bin/npm /usr/local/bin/npm && \
ln -sf /usr/local/bun/bin/bun /usr/local/bin/bun
ENV PATH="/usr/local/miniconda3/bin:/usr/local/node-v22.22.2-linux-x64-glibc-217/bin:/usr/local/bun/bin:${PATH}"
# Helix: pre-built binary + config from context (COPY technique)
COPY helix_config/ /opt/helix_config/
RUN mkdir -p /home/user/.config && \
ln -sf /opt/helix_config /home/user/.config/helix && \
chown -R user:user /home/user/.config
ENV PATH="/opt/helix_config/bin:${PATH}"
ENV HELIX_RUNTIME=/opt/helix_config
# Scripts for runtime use
COPY scripts/ /home/user/scripts/
RUN chown -R user:user /home/user/scripts && \
chmod +x /home/user/scripts/*.sh
# code-server
RUN curl -fsSL https://code-server.dev/install.sh | sh
# code-server extensions (run as user so they install to ~/.local)
USER user
RUN code-server --install-extension golang.go \
&& code-server --install-extension cnbcool.cnb-welcome \
&& code-server --install-extension formulahendry.code-runner \
&& code-server --install-extension ms-kubernetes-tools.vscode-kubernetes-tools \
&& code-server --install-extension tencent-cloud.coding-copilot \
&& code-server --install-extension github.github-vscode-theme \
&& code-server --install-extension ms-ceintl.vscode-language-pack-zh-hans \
&& code-server --install-extension eddieposey.vscode-icons-mac \
&& code-server --install-extension oderwat.indent-rainbow \
&& code-server --install-extension yzhang.markdown-all-in-one
USER root
# oh-my-zsh (install as user so config lands in /home/user/)
USER user
RUN RUNZSH=no CHSH=no sh -c "$(curl -fsSL https://raw.githubusercontent.com/ohmyzsh/ohmyzsh/master/tools/install.sh)"
USER root
RUN chsh -s $(which zsh) user
# Neovim
RUN curl -fsSL https://github.com/neovim/neovim/releases/download/v0.12.2/nvim-linux-x86_64.tar.gz \
-o /tmp/nvim.tar.gz && \
tar xf /tmp/nvim.tar.gz -C /usr/local && \
ln -sf /usr/local/nvim-linux-x86_64/bin/nvim /usr/bin/nvim && \
rm /tmp/nvim.tar.gz
# tmux config (user's home)
RUN cd /home/user && \
git clone --single-branch https://github.com/gpakosz/.tmux.git && \
ln -s -f .tmux/.tmux.conf && \
cp .tmux/.tmux.conf.local . && \
chown -R user:user /home/user
# Locale (Chinese + English)
RUN sed -i '/en_US.UTF-8/s/^# //g' /etc/locale.gen && \
localedef -i zh_CN -c -f UTF-8 -A /usr/share/locale/locale.alias zh_CN.UTF-8 && \
dpkg-reconfigure --frontend=noninteractive locales
ENV TZ=Asia/Shanghai
ENV GIT_TERMINAL_PROMPT=0
ENV LANG=zh_CN.UTF-8
ENV LANGUAGE=zh_CN:zh
WORKDIR /home/user
USER user