Merge pull request coreos#513 from cgwalters/fix-ci

ci: Rework to split build/test

ci/Dockerfile

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+# For CI on a config git repo, all we need to do is combine
+# the source code with coreos-assembler into an image to test.
+FROM registry.svc.ci.openshift.org/coreos/coreos-assembler:latest
+WORKDIR /src
+COPY . .

ci/build-test-qemu.sh

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+#!/bin/bash
+set -xeuo pipefail
+# Prow jobs don't support adding emptydir today
+export COSA_SKIP_OVERLAY=1
+# We generate .repo files which write to the source, but
+# we captured the source as part of the Docker build.
+# In OpenShift default SCC we'll run as non-root, so we need
+# to make a new copy of the source.  TODO fix cosa to be happy
+# if src/config already exists instead of wanting to reference
+# it or clone it.  Or we could write our .repo files to a separate
+# place.
+tmpsrc=$(mktemp -d)
+cp -a /src ${tmpsrc}/src
+# Create a temporary cosa workdir
+cd $(mktemp -d)
+cosa init ${tmpsrc}/src
+# TODO query the 4-8 bits from manifest.yaml or so
+curl -L http://base-4-8-rhel8.ocp.svc.cluster.local > src/config/ocp.repo
+cosa fetch
+cosa build
+cosa kola --basic-qemu-scenarios
+cosa kola run 'ext.*'
+# TODO: all tests in the future, but there are a lot
+# and we want multiple tiers, and we need to split them
+# into multiple pods and stuff.

ci/build-test.sh

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+validate.sh

ci/validate.sh

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+#!/bin/bash
+set -xeuo pipefail
+# First ensure submodules are initialized
+git submodule update --init --recursive
+# Basic syntax check
+./fedora-coreos-config/ci/validate