fixing control plane backup too

k8s/test/test-backup-k3s-control-plane-config.sh

@@ -172,13 +172,21 @@ EOF
 set -Eeuo pipefail
 
 url=""
+body=""
 for ((i = 1; i <= $#; i++)); do
-    if [[ "${!i}" == "POST" ]]; then
-        next=$((i + 1))
-        url="${!next}"
-    fi
+    case "${!i}" in
+        POST|-d)
+            next=$((i + 1))
+            if [[ "${!i}" == "POST" ]]; then
+                url="${!next}"
+            else
+                body="${!next}"
+            fi
+            ;;
+    esac
 done
-printf '%s\n' "$url" >> "${TMPD}/curl_trace.log"
+body="${body//$'\n'/ }"
+printf '%s %s\n' "$url" "$body" >> "${TMPD}/curl_trace.log"
 [[ ! -f "${TMPD}/fail_curl" ]]
 EOF
 
@@ -219,8 +227,8 @@ run_backup() {
         CURL_BIN="${TMPD}/bin/curl" \
         FLOCK_BIN="${TMPD}/bin/flock" \
         DATE_BIN="${TMPD}/bin/date" \
-        NOTIFY_SUCCESS_URL="http://example.invalid/success" \
-        NOTIFY_FAILURE_URL="http://example.invalid/failure" \
+        NOTIFY_SUCCESS_URL="http://example.invalid/api/v2/notifications/backup" \
+        NOTIFY_FAILURE_URL="http://example.invalid/api/v2/notifications/error" \
         PATH="${TMPD}/bin:${PATH}" \
         TMPD="$TMPD" \
         FAKE_REMOTE_ROOT="$remote_root" \
@@ -312,7 +320,10 @@ assert "retention keeps the standalone unrelated.zip sentinel" path_exists "${su
 assert "retention keeps unrelated legacy .7z backups" path_exists "${success_remote}/k8s-backup_2026-07-01.7z"
 assert "retention keeps unrelated zip backups" path_exists "${success_remote}/other-prefix_2026-07-01.zip"
 assert "local temporary archive state is removed" directory_is_empty "$success_local_tmp"
-assert "successful backup sends a success notification" file_contains "${TMPD}/curl_trace.log" "http://example.invalid/success"
+assert "successful backup sends a v2 backup notification" file_contains "${TMPD}/curl_trace.log" "http://example.invalid/api/v2/notifications/backup"
+assert "successful backup sends its archive size in bytes" file_contains "${TMPD}/curl_trace.log" '"sizeBytes":'
+assert "successful backup sends its elapsed duration" file_contains "${TMPD}/curl_trace.log" '"durationSeconds":'
+assert "successful backup sends the v2 notification source" file_contains "${TMPD}/curl_trace.log" '"source": "K3s control-plane config backup"'
 
 # A configured source path ending in server/db/.. must be rejected before zip is
 # invoked, rather than recursively archiving server/db and its sibling socket.
@@ -398,8 +409,10 @@ assert "upload failure exits non-zero" is_nonzero "$failure_exit_code"
 assert "upload failure does not publish a final archive" path_does_not_exist "${failure_remote}/k3s-control-plane-config_2026-07-21_12-00-00.zip"
 assert "upload failure removes the remote temporary archive" directory_is_empty "$failure_remote"
 assert "upload failure removes local temporary state" directory_is_empty "$failure_local_tmp"
-assert "upload failure attempts exactly one error notification" file_line_count_is "${TMPD}/curl_trace.log" "http://example.invalid/failure" 1
-assert "upload failure does not send a success notification" file_lacks "${TMPD}/curl_trace.log" "http://example.invalid/success"
+assert "upload failure attempts exactly one v2 error notification" file_line_count_is "${TMPD}/curl_trace.log" "http://example.invalid/api/v2/notifications/error" 1
+assert "upload failure marks the notification as critical" file_contains "${TMPD}/curl_trace.log" '"severity": "critical"'
+assert "upload failure includes the v2 error code" file_contains "${TMPD}/curl_trace.log" '"errorCode": "K3S_CONTROL_PLANE_BACKUP_FAILED"'
+assert "upload failure does not send a v2 backup notification" file_lacks "${TMPD}/curl_trace.log" "http://example.invalid/api/v2/notifications/backup"
 assert "failure log does not disclose fixture source paths" file_lacks "${failure_dir}/run.log" "$failure_fixture"
 
 # A notification error is non-fatal after a completed backup.