FROM ghcr.io/open-webui/open-terminal:latest # Pin claude-code CLI so two clean builds from the same source produce # identical behaviour. Override at build time: # docker compose build --build-arg CLAUDE_CODE_VERSION=X.Y.Z open-terminal # When bumping the default here, keep the image rebuild + test cycle # together — the stream-json schema can change between versions. ARG CLAUDE_CODE_VERSION=2.1.114 # Base image runs as uid=1000(user) with npm prefix /usr, which requires # root to write. Switch to root for the global install, then back so the # container's runtime user and entrypoint stay identical to upstream. USER root RUN npm install -g "@anthropic-ai/claude-code@${CLAUDE_CODE_VERSION}" \ && claude --version # bubblewrap + socat are the Linux backends for Claude Code's built-in # `/sandbox` feature. Without them, Claude falls back to unsandboxed bash — # our managed-settings.json sets failIfUnavailable=true so that silent # degradation becomes a hard error instead. git is needed for the skill # vendoring step below. RUN apt-get update \ && apt-get install -y --no-install-recommends bubblewrap socat git ca-certificates \ && rm -rf /var/lib/apt/lists/* # Vendor a curated set of Anthropic skills into /opt/claude-skills. Each # chat's CLAUDE_CONFIG_DIR/.claude/skills/ symlinks here at runtime, so all # users share a read-only copy without per-chat duplication. To update the # set, change the sparse-checkout list and rebuild — running chats pick up # the new set on their next turn (symlinks re-point). ARG CLAUDE_SKILLS="docx pdf pptx xlsx frontend-design" RUN set -eux; \ mkdir -p /opt/claude-skills; \ tmp="$(mktemp -d)"; \ git clone --depth 1 --filter=blob:none --sparse \ https://github.com/anthropics/skills.git "$tmp"; \ cd "$tmp"; \ paths=""; for s in $CLAUDE_SKILLS; do paths="$paths skills/$s"; done; \ git sparse-checkout set $paths; \ for s in $CLAUDE_SKILLS; do \ cp -r "skills/$s" "/opt/claude-skills/$s"; \ done; \ cd /; rm -rf "$tmp"; \ ls /opt/claude-skills/ # Managed (enterprise) settings live at the system-wide path and take # precedence over per-user and per-project settings. This is how we pin # Bash egress + WebFetch allowlists: users can extend via their own # settings, but cannot downgrade these rules. COPY managed-settings.json /etc/claude-code/managed-settings.json RUN chmod 0644 /etc/claude-code/managed-settings.json COPY cleanup.sh /opt/cleanup.sh RUN chmod +x /opt/cleanup.sh USER user