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@@ -0,0 +1,154 @@
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ARG NODE_VERSION=24.13.1
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ARG PYTHON_VERSION=3.13
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# ==============================================================================
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# STAGE 1: JavaScript runner (@n8n/task-runner) artifact from CI
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# ==============================================================================
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FROM node:${NODE_VERSION}-alpine AS javascript-runner-builder
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COPY ./dist/task-runner-javascript /app/task-runner-javascript
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WORKDIR /app/task-runner-javascript
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RUN corepack enable pnpm
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# Remove `catalog` and `workspace` references from package.json to allow `pnpm add` in extended images
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RUN node -e "const pkg = require('./package.json'); \
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Object.keys(pkg.dependencies || {}).forEach(k => { \
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const val = pkg.dependencies[k]; \
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if (val === 'catalog:' || val.startsWith('catalog:') || val.startsWith('workspace:')) \
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delete pkg.dependencies[k]; \
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}); \
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Object.keys(pkg.devDependencies || {}).forEach(k => { \
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const val = pkg.devDependencies[k]; \
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if (val === 'catalog:' || val.startsWith('catalog:') || val.startsWith('workspace:')) \
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delete pkg.devDependencies[k]; \
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}); \
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delete pkg.devDependencies; \
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require('fs').writeFileSync('./package.json', JSON.stringify(pkg, null, 2));"
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# Install moment (special case for backwards compatibility)
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RUN rm -f node_modules/.modules.yaml && \
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pnpm add moment@2.30.1 --prod --no-lockfile
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# ==============================================================================
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# STAGE 2: Python runner build (@n8n/task-runner-python) with uv
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# Produces a relocatable venv tied to the python version used
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# ==============================================================================
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FROM python:${PYTHON_VERSION}-alpine AS python-runner-builder
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ARG TARGETPLATFORM
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ARG UV_VERSION=0.8.14
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RUN set -e; \
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case "$TARGETPLATFORM" in \
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"linux/amd64") UV_ARCH="x86_64-unknown-linux-musl" ;; \
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"linux/arm64") UV_ARCH="aarch64-unknown-linux-musl" ;; \
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*) echo "Unsupported platform: $TARGETPLATFORM" >&2; exit 1 ;; \
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esac; \
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mkdir -p /tmp/uv && cd /tmp/uv; \
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wget -q "https://github.com/astral-sh/uv/releases/download/${UV_VERSION}/uv-${UV_ARCH}.tar.gz"; \
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wget -q "https://github.com/astral-sh/uv/releases/download/${UV_VERSION}/uv-${UV_ARCH}.tar.gz.sha256"; \
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sha256sum -c "uv-${UV_ARCH}.tar.gz.sha256"; \
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tar -xzf "uv-${UV_ARCH}.tar.gz"; \
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install -m 0755 "uv-${UV_ARCH}/uv" /usr/local/bin/uv; \
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cd / && rm -rf /tmp/uv
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WORKDIR /app/task-runner-python
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COPY packages/@n8n/task-runner-python/pyproject.toml \
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packages/@n8n/task-runner-python/uv.lock** \
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packages/@n8n/task-runner-python/.python-version** \
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./
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RUN uv venv
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RUN uv sync \
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--frozen \
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--no-editable \
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--no-install-project \
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--no-dev \
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--all-extras
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COPY packages/@n8n/task-runner-python/ ./
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RUN uv sync \
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--frozen \
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--no-dev \
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--all-extras \
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--no-editable
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# Install the python runner package itself into site packages. We can remove the src directory then
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RUN uv pip install . && rm -rf /app/task-runner-python/src
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# ==============================================================================
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# STAGE 3: Task Runner Launcher download
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# ==============================================================================
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FROM alpine:3.22 AS launcher-downloader
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ARG TARGETPLATFORM
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ARG LAUNCHER_VERSION=1.4.3
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RUN set -e; \
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case "$TARGETPLATFORM" in \
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"linux/amd64") ARCH_NAME="amd64" ;; \
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"linux/arm64") ARCH_NAME="arm64" ;; \
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*) echo "Unsupported platform: $TARGETPLATFORM" && exit 1 ;; \
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esac; \
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mkdir /launcher-temp && cd /launcher-temp; \
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wget -q "https://github.com/n8n-io/task-runner-launcher/releases/download/${LAUNCHER_VERSION}/task-runner-launcher-${LAUNCHER_VERSION}-linux-${ARCH_NAME}.tar.gz"; \
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wget -q "https://github.com/n8n-io/task-runner-launcher/releases/download/${LAUNCHER_VERSION}/task-runner-launcher-${LAUNCHER_VERSION}-linux-${ARCH_NAME}.tar.gz.sha256"; \
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echo "$(cat task-runner-launcher-${LAUNCHER_VERSION}-linux-${ARCH_NAME}.tar.gz.sha256) task-runner-launcher-${LAUNCHER_VERSION}-linux-${ARCH_NAME}.tar.gz" > checksum.sha256; \
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sha256sum -c checksum.sha256; \
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mkdir -p /launcher-bin; \
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tar xzf task-runner-launcher-${LAUNCHER_VERSION}-linux-${ARCH_NAME}.tar.gz -C /launcher-bin; \
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cd / && rm -rf /launcher-temp
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# ==============================================================================
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# STAGE 4: Node alpine base for JS task runner
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# ==============================================================================
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FROM node:${NODE_VERSION}-alpine AS node-alpine
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# ==============================================================================
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# STAGE 5: Runtime
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# ==============================================================================
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FROM python:${PYTHON_VERSION}-alpine AS runtime
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ARG N8N_VERSION=snapshot
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ARG N8N_RELEASE_TYPE=dev
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ENV NODE_ENV=production \
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N8N_RELEASE_TYPE=${N8N_RELEASE_TYPE} \
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SHELL=/bin/sh
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# Bring `uv` over from python-runner-builder, to make the image easier to extend
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COPY --from=python-runner-builder /usr/local/bin/uv /usr/local/bin/uv
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# Bring node over from node-alpine
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COPY --from=node-alpine /usr/local/bin/node /usr/local/bin/node
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# libstdc++ is required by Node
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# libc6-compat is required by task-runner-launcher
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RUN apk add --no-cache ca-certificates tini libstdc++ libc6-compat && \
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apk del apk-tools
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# Bring corepack and pnpm over, to make the image easier to extend
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COPY --from=node-alpine /usr/local/lib/node_modules/corepack /usr/local/lib/node_modules/corepack
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RUN ln -s ../lib/node_modules/corepack/dist/corepack.js /usr/local/bin/corepack && \
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ln -s ../lib/node_modules/corepack/dist/pnpm.js /usr/local/bin/pnpm
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RUN addgroup -g 1000 -S runner \
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&& adduser -u 1000 -S -G runner -h /home/runner -D runner
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WORKDIR /home/runner
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COPY --from=javascript-runner-builder --chown=root:root /app/task-runner-javascript /opt/runners/task-runner-javascript
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COPY --from=python-runner-builder --chown=root:root /app/task-runner-python /opt/runners/task-runner-python
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COPY --from=launcher-downloader /launcher-bin/* /usr/local/bin/
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COPY --chown=root:root docker/images/runners/n8n-task-runners.json /etc/n8n-task-runners.json
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USER runner
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EXPOSE 5680/tcp
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ENTRYPOINT ["tini", "--", "/usr/local/bin/task-runner-launcher"]
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CMD ["javascript", "python"]
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LABEL org.opencontainers.image.title="n8n task runners" \
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org.opencontainers.image.description="Sidecar image providing n8n task runners for JavaScript and Python code execution" \
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org.opencontainers.image.source="https://github.com/n8n-io/n8n" \
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org.opencontainers.image.url="https://n8n.io" \
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org.opencontainers.image.version="${N8N_VERSION}"
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