debian-buster-jenkins-arm: new image

Add a minimal image to use on the raspberry pis, so it doesn't need to
spend 1-2 hours building debian-buster-jenkins on the raspberry pis,
full of things we don't actually use there.

I've verified that osmo-bts, osmo-pcu, osmo-trx build with this image
(the only projects which we build on the rpis).

Related: OS#5863
Change-Id: I4fb4b48b233acaef815c4c27ec6f17f12cfe836b

debian-buster-jenkins-arm/Dockerfile

@@ -0,0 +1,78 @@
+# Image used to run contrib/jenkins.sh scripts of a few Osmocom projects on
+# arm. Keep this image minimal so the rpis don't need forever to build it.
+# See master-builds.yml, gerrit-verifications.yml in osmo-ci.git.
+
+ARG	DEBIAN_VERSION=buster-slim
+ARG	REGISTRY=docker.io
+FROM	${REGISTRY}/debian:${DEBIAN_VERSION}
+# Arguments used after FROM must be specified again
+ARG	OSMOCOM_REPO_MIRROR="https://downloads.osmocom.org"
+ARG	OSMOCOM_REPO_PATH="packages/osmocom:"
+
+# Install apt dependencies (keep in alphabetic order)
+RUN \
+	DEBIAN_FRONTEND=noninteractive apt-get update && \
+	DEBIAN_FRONTEND=noninteractive apt-get install -y --no-install-recommends \
+		autoconf \
+		automake \
+		bzip2 \
+		ca-certificates \
+		ccache \
+		g++ \
+		gcc \
+		git \
+		libboost-dev \
+		libboost-filesystem-dev \
+		libboost-program-options-dev \
+		libboost-thread-dev \
+		libfftw3-dev \
+		libgnutls28-dev \
+		libmnl-dev \
+		libortp-dev \
+		libpcsclite-dev \
+		libsctp-dev \
+		libtalloc-dev \
+		libtool \
+		libusb-1.0-0-dev \
+		make \
+		pkg-config \
+		python3-minimal \
+		python3-setuptools \
+		sdcc \
+		stow \
+		&& \
+	apt-get clean
+
+# match the outside user
+RUN useradd --uid=1000 build
+
+RUN mkdir /build
+RUN chown build:build /build
+
+# Install osmo-python-tests for python3
+ADD http://git.osmocom.org/python/osmo-python-tests/patch /tmp/osmo-python-tests3-commit
+RUN git clone https://gerrit.osmocom.org/python/osmo-python-tests osmo-python-tests3 && \
+	cd osmo-python-tests3 && \
+	python3 setup.py clean build install
+
+# Install osmo-ci.git/scripts to /usr/local/bin
+ADD http://git.osmocom.org/osmo-ci/patch /tmp/osmo-ci-commit
+RUN git clone https://gerrit.osmocom.org/osmo-ci osmo-ci && \
+	cp -v $(find osmo-ci/scripts \
+		-maxdepth 1 \
+		-type f ) \
+	   /usr/local/bin
+
+# Install packages from Osmocom OBS repositories:
+# * osmo-trx: liblimesuite-dev, libuhd-dev
+ARG	OSMOCOM_REPO="${OSMOCOM_REPO_MIRROR}/${OSMOCOM_REPO_PATH}/nightly/Debian_10/"
+COPY	.common/Release.key /etc/apt/trusted.gpg.d/obs.osmocom.org.asc
+RUN	echo "deb [signed-by=/etc/apt/trusted.gpg.d/obs.osmocom.org.asc] " \
+		$OSMOCOM_REPO " ./" > /etc/apt/sources.list.d/osmocom-nightly.list
+ADD	$OSMOCOM_REPO/Release /tmp/Release
+RUN	apt-get update && \
+	apt-get install -y --no-install-recommends \
+		liblimesuite-dev \
+		libuhd-dev \
+		&& \
+	apt-get clean

debian-buster-jenkins-arm/Makefile

@@ -0,0 +1,3 @@
+UPSTREAM_DISTRO=debian:buster-slim
+DISTRO=debian-buster-slim
+include ../make/Makefile