spec: Add stateroot

As we head towards factory reset work, this will be of critical
importance.

For now this only shows up in the API, not in human readable
status.

Signed-off-by: Colin Walters <walters@verbum.org>

Author: cgwalters

lib/src/spec.rs

@@ -156,6 +156,8 @@ pub struct ImageStatus {
 #[derive(Debug, Clone, Serialize, Deserialize, PartialEq, Eq, JsonSchema)]
 #[serde(rename_all = "camelCase")]
 pub struct BootEntryOstree {
+    /// The name of the storage for /etc and /var content
+    pub stateroot: String,
     /// The ostree commit checksum
     pub checksum: String,
     /// The deployment serial

lib/src/status.rs

@@ -163,6 +163,7 @@ fn boot_entry_from_deployment(
             checksum: deployment.csum().into(),
             // SAFETY: The deployserial is really unsigned
             deploy_serial: deployment.deployserial().try_into().unwrap(),
+            stateroot: deployment.stateroot().into(),
         }),
     };
     Ok(r)

tmt/tests/booted/readonly/001-test-status.nu

@@ -12,6 +12,10 @@ assert equal $st.apiVersion org.containers.bootc/v1
 let st = bootc status --format=yaml | from yaml
 assert equal $st.apiVersion org.containers.bootc/v1
 assert ($st.status.booted.image.timestamp != null)
+let ostree = $st.status.booted.ostree
+if $ostree != null {
+    assert ($ostree.stateroot != null)
+}
 
 let st = bootc status --json --booted | from json
 assert equal $st.apiVersion org.containers.bootc/v1