Minimal container setup. Install docker (or podman), build container with scripts/build_container.sh, then start with scripts/start_container.sh. Exit with ^C for now. (#61)

Dockerfile

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+FROM node:20-slim
+
+# install minimal set of packages, then clean up
+RUN apt-get update && apt-get install -y --no-install-recommends \
+  man-db \
+  curl \
+  dnsutils \
+  less \
+  jq \
+  bc \
+  gh \
+  git \
+  unzip \
+  rsync \
+  ripgrep \
+  procps \
+  psmisc \
+  lsof \
+  && apt-get clean \
+  && rm -rf /var/lib/apt/lists/*
+
+# set up npm global package folder under /usr/local/share
+# give it to non-root user node, already set up in base image
+RUN mkdir -p /usr/local/share/npm-global \
+  && chown -R node:node /usr/local/share/npm-global
+ENV NPM_CONFIG_PREFIX=/usr/local/share/npm-global
+ENV PATH=$PATH:/usr/local/share/npm-global/bin
+
+# switch to non-root user node
+USER node
+
+# install gemini-code and clean up
+COPY packages/cli/dist/gemini-code-cli-*.tgz /usr/local/share/npm-global/gemini-code-cli.tgz
+COPY packages/server/dist/gemini-code-server-*.tgz /usr/local/share/npm-global/gemini-code-server.tgz
+RUN npm install -g /usr/local/share/npm-global/gemini-code-cli.tgz /usr/local/share/npm-global/gemini-code-server.tgz \
+  && npm cache clean --force \
+  && rm -f /usr/local/share/npm-global/gemini-code-cli.tgz \
+  && rm -f /usr/local/share/npm-global/gemini-code-server.tgz
+