fixing control plane backup too

k8s/README.md

@@ -35,7 +35,7 @@ Useful overrides:
 - Destination and identity: `REMOTE_USER`, `REMOTE_HOST`, `REMOTE_DIR`, `REMOTE_IDENTITY_FILE`, `SSH_PORT`.
 - Archive and locking: `ARCHIVE_PREFIX`, `ARCHIVE_TS_FORMAT`, `LOCAL_TMP_PARENT`, `LOCK_PATH`, `CLEANUP_KEEP_COUNT` (default `4`; `0` disables deletion).
 - Binaries: `ZIP_BIN`, `UNZIP_BIN`, `SSH_BIN`, `SCP_BIN`, `CURL_BIN`, `FLOCK_BIN`, `MKTEMP_BIN`, `DATE_BIN`, `REALPATH_BIN`, `REMOTE_BASH_BIN`. `REALPATH_BIN` must provide GNU `realpath` `-e` and `-m` options.
-- Notifications: `NOTIFY_SUCCESS_URL` (default `http://notify.haven/template/notify/backup`), `NOTIFY_FAILURE_URL` (default `http://notify.haven/template/notify/error`), `NOTIFY_TITLE`, `NOTIFY_ASSET`, and `NOTIFY_CALLER`. Set either URL to an empty value to disable it. Failed notifications only generate a warning; they do not change an otherwise successful backup result.
+- Notifications: `NOTIFY_SUCCESS_URL` (default `http://notify.haven/api/v2/notifications/backup`), `NOTIFY_FAILURE_URL` (default `http://notify.haven/api/v2/notifications/error`), `NOTIFY_TITLE`, `NOTIFY_ASSET`, and `NOTIFY_SOURCE`. `NOTIFY_CALLER` is a compatibility fallback for `NOTIFY_SOURCE`. Set either URL to an empty value to disable it. Failed notifications only generate a warning; they do not change an otherwise successful backup result.
 
 ## Environment Variables
 

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

@@ -44,13 +44,14 @@ DATE_BIN="${DATE_BIN:-date}"
 REALPATH_BIN="${REALPATH_BIN:-realpath}"
 REMOTE_BASH_BIN="${REMOTE_BASH_BIN:-bash}"
 
-# Notifications follow the JSON formats used by automated-nfs-backup.sh.
+# Notifications use the Haven Notify v2 backup and error contracts.
 # Set either URL to an empty value to disable that notification.
-NOTIFY_SUCCESS_URL="${NOTIFY_SUCCESS_URL-http://notify.haven/template/notify/backup}"
-NOTIFY_FAILURE_URL="${NOTIFY_FAILURE_URL-http://notify.haven/template/notify/error}"
+NOTIFY_SUCCESS_URL="${NOTIFY_SUCCESS_URL-http://notify.haven/api/v2/notifications/backup}"
+NOTIFY_FAILURE_URL="${NOTIFY_FAILURE_URL-http://notify.haven/api/v2/notifications/error}"
 NOTIFY_TITLE="${NOTIFY_TITLE:-Kubernetes}"
 NOTIFY_ASSET="${NOTIFY_ASSET:-k3s control-plane config}"
 NOTIFY_CALLER="${NOTIFY_CALLER:-K3s control-plane config backup}"
+NOTIFY_SOURCE="${NOTIFY_SOURCE:-$NOTIFY_CALLER}"
 
 declare -a ARCHIVE_ENTRIES=()
 declare -a SERVICE_FILE_LIST=()
@@ -66,6 +67,7 @@ ARCHIVE_SIZE_BYTES=0
 CLEANUP_KEEP_COUNT_INT=0
 LOCK_FD=""
 FAILURE_NOTIFICATION_SENT=0
+BACKUP_STARTED_SECONDS="$SECONDS"
 
 json_escape() {
     local value="${1:-}"
@@ -75,18 +77,10 @@ json_escape() {
     printf '%s' "$value"
 }
 
-backup_size_mb() {
-    local bytes="${1:-0}"
-    if (( bytes <= 0 )); then
-        printf '0'
-        return 0
-    fi
-    printf '%s' "$(( (bytes + 1048575) / 1048576 ))"
-}
-
 send_backup_notification() {
     local url="${1:-}"
-    local size_mb="${2:-0}"
+    local size_bytes="${2:-0}"
+    local duration_seconds="${3:-0}"
     [[ -z "$url" ]] && return 0
 
     local payload
@@ -94,7 +88,9 @@ send_backup_notification() {
 {
   "title": "$(json_escape "$NOTIFY_TITLE")",
   "asset": "$(json_escape "$NOTIFY_ASSET")",
-  "backupSizeInMB": ${size_mb}
+  "sizeBytes": ${size_bytes},
+  "durationSeconds": ${duration_seconds},
+  "source": "$(json_escape "$NOTIFY_SOURCE")"
 }
 EOF
 )
@@ -109,19 +105,20 @@ EOF
 
 send_backup_failure_notification() {
     local url="${1:-}"
-    local size_mb="${2:-0}"
+    local size_bytes="${2:-0}"
     [[ -z "$url" ]] && return 0
 
     local payload
     payload=$(cat <<EOF
 {
-  "caller": "$(json_escape "$NOTIFY_CALLER")",
+  "source": "$(json_escape "$NOTIFY_SOURCE")",
   "message": "Control-plane configuration backup failed",
-  "critical": true,
+  "severity": "critical",
+  "errorCode": "K3S_CONTROL_PLANE_BACKUP_FAILED",
   "extra": [
     {
-      "name": "Backup Size (MB)",
-      "value": "${size_mb}"
+      "name": "Archive size",
+      "value": "${size_bytes} B"
     }
   ]
 }
@@ -141,7 +138,7 @@ notify_failure_once() {
         return 0
     fi
     FAILURE_NOTIFICATION_SENT=1
-    send_backup_failure_notification "$NOTIFY_FAILURE_URL" "$(backup_size_mb "$ARCHIVE_SIZE_BYTES")" || true
+    send_backup_failure_notification "$NOTIFY_FAILURE_URL" "$ARCHIVE_SIZE_BYTES" || true
 }
 
 cleanup() {
@@ -469,7 +466,8 @@ main() {
 
     # Notifications are informational: an unavailable notification endpoint
     # must not change the result of a completed backup.
-    send_backup_notification "$NOTIFY_SUCCESS_URL" "$(backup_size_mb "$ARCHIVE_SIZE_BYTES")" || true
+    local duration_seconds=$((SECONDS - BACKUP_STARTED_SECONDS))
+    send_backup_notification "$NOTIFY_SUCCESS_URL" "$ARCHIVE_SIZE_BYTES" "$duration_seconds" || true
 }
 
 main "$@"

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
+    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.