tests-container: New experimental testing code path

This generates a docker image that contains a cached blob of RPMs, so
it's easy to test compose tree.

It's hacky and ugly, but it's better than nothing.

tests-container/CentOS-Base.repo

@@ -0,0 +1,24 @@
+# CentOS-Base.repo
+#
+# The mirror system uses the connecting IP address of the client and the
+# update status of each mirror to pick mirrors that are updated to and
+# geographically close to the client.  You should use this for CentOS updates
+# unless you are manually picking other mirrors.
+#
+# If the mirrorlist= does not work for you, as a fall back you can try the 
+# remarked out baseurl= line instead.
+#
+#
+
+[base]
+name=CentOS-$releasever - Base
+mirrorlist=http://mirrorlist.centos.org/?release=$releasever&arch=$basearch&repo=os&infra=$infra
+#baseurl=http://mirror.centos.org/centos/$releasever/os/$basearch/
+gpgcheck=0
+
+#released updates 
+[updates]
+name=CentOS-$releasever - Updates
+mirrorlist=http://mirrorlist.centos.org/?release=$releasever&arch=$basearch&repo=updates&infra=$infra
+#baseurl=http://mirror.centos.org/centos/$releasever/updates/$basearch/
+gpgcheck=0

tests-container/Dockerfile

@@ -0,0 +1,9 @@
+FROM centos
+ADD centos-atomic-7.repo /etc/yum.repos.d/centos-atomic-7.repo
+ADD local.repo /etc/yum.repos.d/local.repo
+ADD repo /var/tmp/repo
+ADD pkgblob.tar /var/tmp/centos
+ADD test-centos.json /var/tmp/test/test-centos.json
+ADD test-centos.repo /var/tmp/test/test-centos.repo
+ADD container-build.sh /usr/bin/container-build
+RUN /usr/bin/container-build

tests-container/centos-atomic-7.repo

@@ -0,0 +1,5 @@
+[centos-atomic7-testing]
+name=centos-atomic7-testing
+baseurl=https://cbs.centos.org/repos/atomic7-testing/x86_64/os/
+enabled=1
+gpgcheck=0

tests-container/container-build.sh

@@ -0,0 +1,9 @@
+#!/bin/sh
+set -xeuo pipefail
+yum -y install rpm-ostree
+cd /var/tmp
+mkdir -p test
+cd test
+mkdir repo
+ostree --repo=repo init --mode=bare-user
+

tests-container/local.repo

@@ -0,0 +1,4 @@
+[local]
+name=local
+baseurl=file:///var/tmp/repo
+gpgcheck=0

tests-container/test-centos.json

@@ -0,0 +1,6 @@
+{
+    "ref": "testos/x86_64/test",
+    "repos": ["test-centos"],
+    "packages": ["kernel", "systemd"],
+    "selinux": true
+}

tests-container/test-centos.repo

@@ -0,0 +1,4 @@
+[test-centos]
+name=test-centos
+baseurl=file:///var/tmp/centos/pkgblob
+gpgcheck=0