mirror of
https://github.com/home-assistant/supervisor.git
synced 2026-05-18 05:38:53 +01:00
Jan Čermák
d815c0922f
This flattens the Docker image from 9 layers to 5 by using multi-stage build that squashes layers into logical blocks. The first layer on top of the base image adds system-wide packages and uv (which is not updated so often - if it were, it may be wise to move it into the next or separate layer; it weights roughly 50 MB) which should be preserved between releases, while the next layer adds all Supervisor Python code and dependencies. This means that unless the base image or packages installed in the first stage are changed (or in other words, only Supervisor code is changed), only a single layer is pulled from the repository. Previously, it generally resulted in pull of all the following 4 layers, as just a change in the requirements invalidated the following layers. The fetched payload size remains roughly the same.
77 lines
2.3 KiB
Docker
77 lines
2.3 KiB
Docker
ARG BUILD_FROM=ghcr.io/home-assistant/base-python:3.14-alpine3.22-2026.04.0
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FROM ${BUILD_FROM} AS supervisor-base
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ENV \
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S6_SERVICES_GRACETIME=10000 \
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SUPERVISOR_API=http://localhost \
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CRYPTOGRAPHY_OPENSSL_NO_LEGACY=1 \
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UV_SYSTEM_PYTHON=true
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# Install OS packages used both by build and final image
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RUN \
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set -x \
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&& apk add --no-cache \
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findutils \
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eudev \
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eudev-libs \
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git \
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libffi \
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libpulse \
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musl \
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openssl \
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yaml \
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\
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&& pip3 install uv==0.10.9
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#############################################
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# Install requirements and build Supervisor #
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#############################################
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FROM supervisor-base AS supervisor-build
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WORKDIR /usr/src
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# Install requirements
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RUN \
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--mount=type=bind,source=./requirements.txt,target=/usr/src/requirements.txt \
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--mount=type=bind,source=./wheels,target=/usr/src/wheels \
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if ls /usr/src/wheels/musllinux/* >/dev/null 2>&1; then \
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LOCAL_WHEELS=/usr/src/wheels/musllinux; \
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echo "Using local wheels from: $LOCAL_WHEELS"; \
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else \
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LOCAL_WHEELS=; \
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echo "No local wheels found"; \
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fi && \
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uv pip install --compile-bytecode --no-cache --no-build \
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-r requirements.txt \
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${LOCAL_WHEELS:+--find-links $LOCAL_WHEELS}
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# Install Home Assistant Supervisor
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ARG BUILD_VERSION="9999.09.9.dev9999"
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COPY . supervisor
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RUN \
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sed -i "s/^SUPERVISOR_VERSION =.*/SUPERVISOR_VERSION = \"${BUILD_VERSION}\"/g" /usr/src/supervisor/supervisor/const.py \
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&& uv pip install --no-cache -e ./supervisor \
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&& python3 -m compileall ./supervisor/supervisor
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# Copy the rest of rootfs files
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COPY rootfs /
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#########################
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# Final flattened image #
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#########################
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FROM supervisor-base
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# Copy everything from the build stage as a single layer
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COPY --from=supervisor-build / /
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LABEL \
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io.hass.type="supervisor" \
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org.opencontainers.image.title="Home Assistant Supervisor" \
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org.opencontainers.image.description="Container-based system for managing Home Assistant Core installation" \
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org.opencontainers.image.authors="The Home Assistant Authors" \
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org.opencontainers.image.url="https://www.home-assistant.io/" \
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org.opencontainers.image.documentation="https://www.home-assistant.io/docs/" \
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org.opencontainers.image.licenses="Apache License 2.0"
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