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.. _rpi_build:
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Building for a Raspberry Pi
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===========================
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The build does not need to be done on the Pi.
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To do so, go to ``tests/`` and call ``./build_arm.sh``, it will build all
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necessary images for arm.
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To push the locally built images to a remote server, run ``./deploy_to_pi.sh``.
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Docker 18.09+ is needed to use ``-H ssh://<user>@<host>``.
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Adjustments
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-----------
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``build_arm.sh`` uses some variables passed as ``build-arg`` to docker-compose:
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- ``ALPINE_VER``: version of ALPINE to use
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- ``DISTRO``: is the main distro used. Dockerfiles are set on Alpine 3.10, and
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build script overrides for ``balenalib/rpi-alpine:3.10``
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- ``QEMU``: Used by webmails dockerfiles. It will add ``qemu-arm-static`` only
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if ``QEMU`` is set to ``arm``
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- ``ARCH``: Architecture to use for ``admin``, and ``webmails`` as their images
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are available for those architectures.
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