automation: add SLES 11 SP4 dockerfile

Signed-off-by: Wei Liu <wei.liu2@citrix.com>
Reviewed-by: Doug Goldstein <cardoe@cardoe.com>

automation/build/suse/sles11sp4.dockerfile

@@ -0,0 +1,20 @@
+FROM registry.gitlab.com/xen-project/xen/suse:sles11sp4-base
+LABEL maintainer.name="The Xen Project" \
+      maintainer.email="xen-devel@lists.xenproject.org"
+
+ENV USER root
+
+RUN mkdir /build
+WORKDIR /build
+
+# Nothing else is needed -- base image already contain everything.
+
+# Note:
+#
+# SLES11 SP4 runs pre-2.13 glibc, which requires vsyscall support.  Most
+# distros nowadays disable vsyscall. To run this container, the host needs to
+# have vsyscall=emulate in its kernel command line.
+#
+# Due to various issues in SLES11 SP4, you might want to disable building
+# certain components. Known *not bulding* components include OVMF, SEABIOS
+# and upstream QEMU.