Add Oracle Linux image generator

tools/qemu-oraclelinux-image/.gitignore

@@ -0,0 +1,4 @@
+*
+!.gitignore
+!Dockerfile.template
+!generate-images.sh

tools/qemu-oraclelinux-image/Dockerfile.template

@@ -0,0 +1,48 @@
+FROM oraclelinux:_VERSION_
+
+RUN yum -y update
+RUN yum -y groupinstall "Development Tools"
+RUN yum -y install qemu-img e2fsprogs
+
+ENV TMPDIR=/tmp/oraclelinux
+
+RUN sed -i 's/$ociregion//' /etc/yum.repos.d/*
+RUN sed -i 's/$ocidomain/oracle.com/' /etc/yum.repos.d/*
+
+RUN yum --installroot=$TMPDIR \
+        --releasever=_VERSION_ \
+        --disablerepo='*' \
+        --enablerepo=ol_VERSION__baseos_latest \
+        -y groupinstall Base
+
+RUN cp /etc/yum.repos.d/* $TMPDIR/etc/yum.repos.d/
+
+RUN yum --installroot=$TMPDIR \
+        --releasever=_VERSION_ \
+        --disablerepo='*' \
+        --enablerepo=ol_VERSION__baseos_latest \
+        -y install openssh-server openssh-clients dhclient
+
+RUN chroot $TMPDIR /bin/sh -c 'useradd -m user'
+RUN sed -i 's/root:\*:/root::/' $TMPDIR/etc/shadow
+RUN sed -i 's/user:!!:/user::/' $TMPDIR/etc/shadow
+RUN sed -i '/PermitEmptyPasswords/d' $TMPDIR/etc/ssh/sshd_config
+RUN echo PermitEmptyPasswords yes >> $TMPDIR/etc/ssh/sshd_config
+RUN sed -i '/PermitRootLogin/d' $TMPDIR/etc/ssh/sshd_config
+RUN echo PermitRootLogin yes >> $TMPDIR/etc/ssh/sshd_config
+
+# network workaround
+RUN chmod +x $TMPDIR/etc/rc.local
+RUN echo 'dhclient' >> $TMPDIR/etc/rc.local
+
+ENV IMAGEDIR=/tmp/image
+ENV IMAGE=/shared/out_of_tree_oraclelinux__VERSION_.img
+
+RUN mkdir $IMAGEDIR
+
+# Must be executed with --privileged because of /dev/loop
+CMD qemu-img create $IMAGE 4G && \
+	mkfs.ext4 -F $IMAGE && \
+	mount -o loop $IMAGE $IMAGEDIR && \
+	cp -a $TMPDIR/* $IMAGEDIR/ && \
+	umount $IMAGEDIR

tools/qemu-oraclelinux-image/generate-images.sh

@@ -0,0 +1,15 @@
+#!/bin/sh -eux
+
+for version in 6 7 8 9; do
+    mkdir $version
+    sed "s/_VERSION_/${version}/" Dockerfile.template >> $version/Dockerfile
+    if [[ $version -eq 6 ]]; then
+	sed -i 's/baseos_latest/u10_base/' $version/Dockerfile
+    fi
+    if [[ $version -eq 7 ]]; then
+	sed -i 's/baseos_latest/u9_base/' $version/Dockerfile
+    fi
+    docker build -t gen-oraclelinux${version}-image $version
+    rm -rf $version
+    docker run --privileged -v $(pwd):/shared -t gen-oraclelinux${version}-image
+done