2 files changed, 13 insertions, 1 deletions

diff --git a/README.adoc b/README.adoc
index 03a588a..3f9c392 100644
--- a/README.adoc
+++ b/README.adoc
@@ -78,6 +78,9 @@ Although we have used U-Boot so far, other boot loaders can be configured work w
 
 * `OSTREE_REPO` - path to your OSTree repository. Defaults to `$\{DEPLOY_DIR_IMAGE}/ostree_repo`
 * `OSTREE_OSNAME` - OS deployment name on your target device. For more information about deployments and osnames see the https://ostree.readthedocs.io/en/latest/manual/deployment/[OSTree documentation]. Defaults to "poky".
+* `OSTREE_COMMIT_BODY` - Message attached to OSTree commit. Empty by default. 
+* `OSTREE_COMMIT_SUBJECT` - Commit subject used by OSTree. Defaults to `Commit-id: ${IMAGE_NAME}`
+* `OSTREE_UPDATE_SUMMARY` - Set this to '1' to update summary of OSTree repository on each commit. '0' by default.
 * `INITRAMFS_IMAGE` - initramfs/initrd image that is used as a proxy while booting into OSTree deployment. Do not change this setting unless you are sure that your initramfs can serve as such a proxy.
 * `SOTA_PACKED_CREDENTIALS` - when set, your ostree commit will be pushed to a remote repo as a bitbake step. This should be the path to a zipped credentials file in https://github.com/advancedtelematic/aktualizr/blob/master/docs/credentials.adoc[the format accepted by garage-push].
 * `SOTA_DEPLOY_CREDENTIALS` - when set to '1' (default value), deploys credentials to the built image. Override it in `local.conf` to built a generic image that can be provisioned manually after the build.
diff --git a/classes/image_types_ostree.bbclass b/classes/image_types_ostree.bbclass
index a5d43dc..3bf2d0e 100644
--- a/classes/image_types_ostree.bbclass
+++ b/classes/image_types_ostree.bbclass
@@ -14,6 +14,10 @@ export GARAGE_TARGET_NAME
 
 OSTREE_KERNEL ??= "${KERNEL_IMAGETYPE}"
 
+OSTREE_COMMIT_SUBJECT ??= "Commit-id: ${IMAGE_NAME}"
+OSTREE_COMMIT_BODY ??= ""
+OSTREE_UPDATE_SUMMARY ??= "0"
+
 export SYSTEMD_USED = "${@oe.utils.ifelse(d.getVar('VIRTUAL-RUNTIME_init_manager', True) == 'systemd', 'true', '')}"
 
 IMAGE_CMD_ostree () {
@@ -160,7 +164,12 @@ IMAGE_CMD_ostree () {
            --tree=dir=${OSTREE_ROOTFS} \
            --skip-if-unchanged \
            --branch=${OSTREE_BRANCHNAME} \
-           --subject="Commit-id: ${IMAGE_NAME}"
+           --subject="${OSTREE_COMMIT_SUBJECT}" \
+           --body="${OSTREE_COMMIT_BODY}"
+
+    if [ "${OSTREE_UPDATE_SUMMARY}" = "1" ]; then
+        ostree --repo=${OSTREE_REPO} summary -u
+    fi
 
     rm -rf ${OSTREE_ROOTFS}
 }