Adds image type for OSTree deployment sysroot

Bug-AGL: SPEC-246

Change-Id: I1390d1aae652f84b61a3b9ca33ae886c138edc50
Signed-off-by: Anton Gerasimov <anton@advancedtelematic.com>

1 files changed, 87 insertions, 0 deletions

diff --git a/classes/image_types_ostree.bbclass b/classes/image_types_ostree.bbclass
new file mode 100644
index 0000000..b82bfb7
--- /dev/null
+++ b/classes/image_types_ostree.bbclass
@@ -0,0 +1,87 @@
+# OSTree deployment
+
+inherit image_types
+
+IMAGE_DEPENDS_ostree = "ostree-native:do_populate_sysroot \ 
+                        virtual/kernel:do_deploy \
+                        ${INITRAMFS_IMAGE}:do_rootfs"
+
+# Please redefine OSTREE_REPO in your local.conf in order to have a persistent
+#   OSTree repo
+OSTREE_REPO ?= "${DEPLOY_DIR_IMAGE}/ostree_repo"
+export OSTREE_REPO
+
+# OSTREE_BRANCHNAME can also be redefined
+OSTREE_BRANCHNAME ?= "${IMAGE_BASENAME}"
+export OSTREE_BRANCHNAME
+
+IMAGE_CMD_ostree () {
+        OSTREE_ROOTFS=`mktemp -d ${WORKDIR}/ostree-root-XXXXX`
+        cp -rp ${IMAGE_ROOTFS}/* ${OSTREE_ROOTFS}
+        cd ${OSTREE_ROOTFS}
+
+        # Create sysroot directory to which physical sysroot will be mounted
+        mkdir sysroot
+        ln -sf /sysroot/ostree ostree
+        ln -sf /sysroot/tmp tmp
+
+        mkdir -p usr/rootdirs
+        mkdir -p var/rootdirs
+
+        # Implement UsrMove
+        dirs="bin sbin lib"
+
+        for dir in ${dirs} ; do
+                if [ -d ${dir} ] && [ ! -L ${dir} ] ; then 
+                        mv ${dir} usr/rootdirs/
+                        rm -rf ${dir}
+                        ln -sf /usr/rootdirs/${dir} ${dir}
+                fi
+        done
+
+        # Move persistent directories to /var
+        dirs="home opt mnt media srv"
+
+        for dir in ${dirs}; do
+                if [ -d ${dir} ] && [ ! -L ${dir} ]; then
+                        mv ${dir} var/rootdirs/
+                        ln -sf /var/rootdirs/${dir} ${dir}
+                fi
+        done
+
+        if [ -d root ] && [ ! -L root ]; then
+                mv root var/roothome
+                ln -sf /var/roothome root
+        fi
+
+        # Creating boot directories is required for "ostree admin deploy"
+
+        mkdir -p boot/loader.0
+        mkdir -p boot/loader.1
+        ln -sf boot/loader.0 boot/loader
+
+        checksum=`sha256sum ${DEPLOY_DIR_IMAGE}/${KERNEL_IMAGETYPE} | cut -f 1 -d " "`
+
+        cp ${DEPLOY_DIR_IMAGE}/${KERNEL_IMAGETYPE} boot/vmlinuz-${checksum}
+        cp ${DEPLOY_DIR_IMAGE}/${INITRD_IMAGE}-${MACHINE}.cpio.gz boot/initramfs-${checksum}
+
+        cd ${WORKDIR}
+
+        # Create a tarball that can be then commited to OSTree repo
+        OSTREE_TAR=${DEPLOY_DIR_IMAGE}/${IMAGE_NAME}.rootfs.ostree.tar.bz2 
+        tar -C ${OSTREE_ROOTFS} -cjf ${OSTREE_TAR} .
+        rm -rf ${OSTREE_ROOTFS}
+        
+        if [ ! -d ${OSTREE_REPO} ]; then
+                ostree --repo=${OSTREE_REPO} init --mode=archive-z2
+        fi
+
+        # Commit the result
+        ostree --repo=${OSTREE_REPO} commit \
+               --tree=tar=${OSTREE_TAR} \
+               --skip-if-unchanged \
+               --branch=${OSTREE_BRANCHNAME} \
+               --subject="Commit-id: ${IMAGE_NAME}"
+
+}
+