[pbs-devel] [PATCH proxmox-backup v3 26/42] server: notifications: send tape notifications via notification system

[Lukas Wagner <l.wagner@proxmox.com>]

If the `notification-mode` parameter is set to `legacy-sendmail`, then
we still use the new infrastructure, but don't consider the
notification config and use a hard-coded sendmail endpoint directly.

Signed-off-by: Lukas Wagner <l.wagner@proxmox.com>
Tested-by: Gabriel Goller <g.goller@proxmox.com>
Reviewed-by: Gabriel Goller <g.goller@proxmox.com>
---
 debian/proxmox-backup-server.install          |   6 +
 src/api2/tape/backup.rs                       |  62 ++---
 src/api2/tape/restore.rs                      |  46 ++--
 src/server/notifications.rs                   | 213 +++++-------------
 src/tape/drive/mod.rs                         |  22 +-
 src/tape/mod.rs                               |  27 +++
 src/tape/pool_writer/mod.rs                   |  11 +-
 templates/Makefile                            |   6 +
 .../default/tape-backup-err-body.txt.hbs      |  26 +++
 .../default/tape-backup-err-subject.txt.hbs   |   5 +
 templates/default/tape-backup-ok-body.txt.hbs |  27 +++
 .../default/tape-backup-ok-subject.txt.hbs    |   5 +
 templates/default/tape-load-body.txt.hbs      |  15 ++
 templates/default/tape-load-subject.txt.hbs   |   1 +
 14 files changed, 244 insertions(+), 228 deletions(-)
 create mode 100644 templates/default/tape-backup-err-body.txt.hbs
 create mode 100644 templates/default/tape-backup-err-subject.txt.hbs
 create mode 100644 templates/default/tape-backup-ok-body.txt.hbs
 create mode 100644 templates/default/tape-backup-ok-subject.txt.hbs
 create mode 100644 templates/default/tape-load-body.txt.hbs
 create mode 100644 templates/default/tape-load-subject.txt.hbs

diff --git a/debian/proxmox-backup-server.install b/debian/proxmox-backup-server.install
index 17951780..df7d68ee 100644
--- a/debian/proxmox-backup-server.install
+++ b/debian/proxmox-backup-server.install
@@ -57,6 +57,12 @@ usr/share/proxmox-backup/templates/default/sync-err-body.txt.hbs
 usr/share/proxmox-backup/templates/default/sync-ok-body.txt.hbs
 usr/share/proxmox-backup/templates/default/sync-err-subject.txt.hbs
 usr/share/proxmox-backup/templates/default/sync-ok-subject.txt.hbs
+usr/share/proxmox-backup/templates/default/tape-backup-err-body.txt.hbs
+usr/share/proxmox-backup/templates/default/tape-backup-err-subject.txt.hbs
+usr/share/proxmox-backup/templates/default/tape-backup-ok-body.txt.hbs
+usr/share/proxmox-backup/templates/default/tape-backup-ok-subject.txt.hbs
+usr/share/proxmox-backup/templates/default/tape-load-body.txt.hbs
+usr/share/proxmox-backup/templates/default/tape-load-subject.txt.hbs
 usr/share/proxmox-backup/templates/default/test-body.txt.hbs
 usr/share/proxmox-backup/templates/default/test-body.html.hbs
 usr/share/proxmox-backup/templates/default/test-subject.txt.hbs
diff --git a/src/api2/tape/backup.rs b/src/api2/tape/backup.rs
index 28d7e720..896e809b 100644
--- a/src/api2/tape/backup.rs
+++ b/src/api2/tape/backup.rs
@@ -10,7 +10,7 @@ use proxmox_sys::{task_log, task_warn, WorkerTaskContext};
 
 use pbs_api_types::{
     print_ns_and_snapshot, print_store_and_ns, Authid, MediaPoolConfig, Operation,
-    TapeBackupJobConfig, TapeBackupJobSetup, TapeBackupJobStatus, Userid, JOB_ID_SCHEMA,
+    TapeBackupJobConfig, TapeBackupJobSetup, TapeBackupJobStatus, JOB_ID_SCHEMA,
     PRIV_DATASTORE_READ, PRIV_TAPE_AUDIT, PRIV_TAPE_WRITE, UPID_SCHEMA,
 };
 
@@ -19,10 +19,11 @@ use pbs_datastore::backup_info::{BackupDir, BackupInfo};
 use pbs_datastore::{DataStore, StoreProgress};
 use proxmox_rest_server::WorkerTask;
 
+use crate::tape::TapeNotificationMode;
 use crate::{
     server::{
         jobstate::{compute_schedule_status, Job, JobState},
-        lookup_user_email, TapeBackupJobSummary,
+        TapeBackupJobSummary,
     },
     tape::{
         changer::update_changer_online_status,
@@ -162,12 +163,6 @@ pub fn do_tape_backup_job(
         Some(lock_tape_device(&drive_config, &setup.drive)?)
     };
 
-    let notify_user = setup
-        .notify_user
-        .as_ref()
-        .unwrap_or_else(|| Userid::root_userid());
-    let email = lookup_user_email(notify_user);
-
     let upid_str = WorkerTask::new_thread(
         &worker_type,
         Some(job_id.clone()),
@@ -206,7 +201,6 @@ pub fn do_tape_backup_job(
                     datastore,
                     &pool_config,
                     &setup,
-                    email.clone(),
                     &mut summary,
                     false,
                 )
@@ -214,16 +208,13 @@ pub fn do_tape_backup_job(
 
             let status = worker.create_state(&job_result);
 
-            if let Some(email) = email {
-                if let Err(err) = crate::server::send_tape_backup_status(
-                    &email,
-                    Some(job.jobname()),
-                    &setup,
-                    &job_result,
-                    summary,
-                ) {
-                    eprintln!("send tape backup notification failed: {}", err);
-                }
+            if let Err(err) = crate::server::send_tape_backup_status(
+                Some(job.jobname()),
+                &setup,
+                &job_result,
+                summary,
+            ) {
+                eprintln!("send tape backup notification failed: {err}");
             }
 
             if let Err(err) = job.finish(status) {
@@ -328,12 +319,6 @@ pub fn backup(
 
     let job_id = format!("{}:{}:{}", setup.store, setup.pool, setup.drive);
 
-    let notify_user = setup
-        .notify_user
-        .as_ref()
-        .unwrap_or_else(|| Userid::root_userid());
-    let email = lookup_user_email(notify_user);
-
     let upid_str = WorkerTask::new_thread(
         "tape-backup",
         Some(job_id),
@@ -349,21 +334,14 @@ pub fn backup(
                 datastore,
                 &pool_config,
                 &setup,
-                email.clone(),
                 &mut summary,
                 force_media_set,
             );
 
-            if let Some(email) = email {
-                if let Err(err) = crate::server::send_tape_backup_status(
-                    &email,
-                    None,
-                    &setup,
-                    &job_result,
-                    summary,
-                ) {
-                    eprintln!("send tape backup notification failed: {}", err);
-                }
+            if let Err(err) =
+                crate::server::send_tape_backup_status(None, &setup, &job_result, summary)
+            {
+                eprintln!("send tape backup notification failed: {err}");
             }
 
             // ignore errors
@@ -386,7 +364,6 @@ fn backup_worker(
     datastore: Arc<DataStore>,
     pool_config: &MediaPoolConfig,
     setup: &TapeBackupJobSetup,
-    email: Option<String>,
     summary: &mut TapeBackupJobSummary,
     force_media_set: bool,
 ) -> Result<(), Error> {
@@ -399,9 +376,16 @@ fn backup_worker(
     let ns_magic = !root_namespace.is_root() || setup.max_depth != Some(0);
 
     let pool = MediaPool::with_config(TAPE_STATUS_DIR, pool_config, changer_name, false)?;
+    let notification_mode = TapeNotificationMode::from(setup);
 
-    let mut pool_writer =
-        PoolWriter::new(pool, &setup.drive, worker, email, force_media_set, ns_magic)?;
+    let mut pool_writer = PoolWriter::new(
+        pool,
+        &setup.drive,
+        worker,
+        notification_mode,
+        force_media_set,
+        ns_magic,
+    )?;
 
     let mut group_list = Vec::new();
     let namespaces = datastore.recursive_iter_backup_ns_ok(root_namespace, setup.max_depth)?;
diff --git a/src/api2/tape/restore.rs b/src/api2/tape/restore.rs
index 8273c867..84557bce 100644
--- a/src/api2/tape/restore.rs
+++ b/src/api2/tape/restore.rs
@@ -18,9 +18,10 @@ use proxmox_uuid::Uuid;
 
 use pbs_api_types::{
     parse_ns_and_snapshot, print_ns_and_snapshot, Authid, BackupDir, BackupNamespace, CryptMode,
-    Operation, TapeRestoreNamespace, Userid, DATASTORE_MAP_ARRAY_SCHEMA, DATASTORE_MAP_LIST_SCHEMA,
-    DRIVE_NAME_SCHEMA, MAX_NAMESPACE_DEPTH, PRIV_DATASTORE_BACKUP, PRIV_DATASTORE_MODIFY,
-    PRIV_TAPE_READ, TAPE_RESTORE_NAMESPACE_SCHEMA, TAPE_RESTORE_SNAPSHOT_SCHEMA, UPID_SCHEMA,
+    NotificationMode, Operation, TapeRestoreNamespace, Userid, DATASTORE_MAP_ARRAY_SCHEMA,
+    DATASTORE_MAP_LIST_SCHEMA, DRIVE_NAME_SCHEMA, MAX_NAMESPACE_DEPTH, PRIV_DATASTORE_BACKUP,
+    PRIV_DATASTORE_MODIFY, PRIV_TAPE_READ, TAPE_RESTORE_NAMESPACE_SCHEMA,
+    TAPE_RESTORE_SNAPSHOT_SCHEMA, UPID_SCHEMA,
 };
 use pbs_config::CachedUserInfo;
 use pbs_datastore::dynamic_index::DynamicIndexReader;
@@ -34,8 +35,8 @@ use pbs_tape::{
 use proxmox_rest_server::WorkerTask;
 
 use crate::backup::check_ns_modification_privs;
+use crate::tape::TapeNotificationMode;
 use crate::{
-    server::lookup_user_email,
     tape::{
         drive::{lock_tape_device, request_and_load_media, set_tape_device_state, TapeDriver},
         file_formats::{
@@ -289,6 +290,10 @@ pub const ROUTER: Router = Router::new().post(&API_METHOD_RESTORE);
                 type: Userid,
                 optional: true,
             },
+            "notification-mode": {
+                type: NotificationMode,
+                optional: true,
+            },
             "snapshots": {
                 description: "List of snapshots.",
                 type: Array,
@@ -322,6 +327,7 @@ pub fn restore(
     namespaces: Option<Vec<String>>,
     media_set: String,
     notify_user: Option<Userid>,
+    notification_mode: Option<NotificationMode>,
     snapshots: Option<Vec<String>>,
     owner: Option<Authid>,
     rpcenv: &mut dyn RpcEnvironment,
@@ -329,6 +335,8 @@ pub fn restore(
     let auth_id: Authid = rpcenv.get_auth_id().unwrap().parse()?;
     let user_info = CachedUserInfo::new()?;
 
+    let notification_mode = TapeNotificationMode::from((notify_user, notification_mode));
+
     let mut store_map = DataStoreMap::try_from(store)
         .map_err(|err| format_err!("cannot parse store mapping: {err}"))?;
     let namespaces = if let Some(maps) = namespaces {
@@ -394,11 +402,6 @@ pub fn restore(
 
             let restore_owner = owner.as_ref().unwrap_or(&auth_id);
 
-            let email = notify_user
-                .as_ref()
-                .and_then(lookup_user_email)
-                .or_else(|| lookup_user_email(&auth_id.clone().into()));
-
             task_log!(worker, "Mediaset '{media_set}'");
             task_log!(worker, "Pool: {pool}");
 
@@ -412,7 +415,7 @@ pub fn restore(
                     &drive,
                     store_map,
                     restore_owner,
-                    email,
+                    &notification_mode,
                     user_info,
                     &auth_id,
                 )
@@ -425,7 +428,7 @@ pub fn restore(
                     &drive,
                     store_map,
                     restore_owner,
-                    email,
+                    &notification_mode,
                     &auth_id,
                 )
             };
@@ -452,7 +455,7 @@ fn restore_full_worker(
     drive_name: &str,
     store_map: DataStoreMap,
     restore_owner: &Authid,
-    email: Option<String>,
+    notification_mode: &TapeNotificationMode,
     auth_id: &Authid,
 ) -> Result<(), Error> {
     let members = inventory.compute_media_set_members(&media_set_uuid)?;
@@ -519,7 +522,7 @@ fn restore_full_worker(
             &store_map,
             &mut checked_chunks_map,
             restore_owner,
-            &email,
+            notification_mode,
             auth_id,
         )?;
     }
@@ -635,7 +638,7 @@ fn restore_list_worker(
     drive_name: &str,
     store_map: DataStoreMap,
     restore_owner: &Authid,
-    email: Option<String>,
+    notification_mode: &TapeNotificationMode,
     user_info: Arc<CachedUserInfo>,
     auth_id: &Authid,
 ) -> Result<(), Error> {
@@ -779,7 +782,7 @@ fn restore_list_worker(
                 &drive_config,
                 drive_name,
                 &media_id.label,
-                &email,
+                notification_mode,
             )?;
             file_list.sort_unstable();
 
@@ -833,7 +836,7 @@ fn restore_list_worker(
                 &drive_config,
                 drive_name,
                 &media_id.label,
-                &email,
+                notification_mode,
             )?;
             restore_file_chunk_map(worker.clone(), &mut drive, &store_map, file_chunk_map)?;
         }
@@ -1241,7 +1244,7 @@ pub fn request_and_restore_media(
     store_map: &DataStoreMap,
     checked_chunks_map: &mut HashMap<String, HashSet<[u8; 32]>>,
     restore_owner: &Authid,
-    email: &Option<String>,
+    notification_mode: &TapeNotificationMode,
     auth_id: &Authid,
 ) -> Result<(), Error> {
     let media_set_uuid = match media_id.media_set_label {
@@ -1249,8 +1252,13 @@ pub fn request_and_restore_media(
         Some(ref set) => &set.uuid,
     };
 
-    let (mut drive, info) =
-        request_and_load_media(&worker, drive_config, drive_name, &media_id.label, email)?;
+    let (mut drive, info) = request_and_load_media(
+        &worker,
+        drive_config,
+        drive_name,
+        &media_id.label,
+        notification_mode,
+    )?;
 
     match info.media_set_label {
         None => {
diff --git a/src/server/notifications.rs b/src/server/notifications.rs
index 11e78ff2..d142971b 100644
--- a/src/server/notifications.rs
+++ b/src/server/notifications.rs
@@ -1,19 +1,17 @@
-use anyhow::Error;
-use const_format::concatcp;
-use serde_json::json;
 use std::collections::HashMap;
 use std::path::Path;
 use std::time::{Duration, Instant};
 
-use handlebars::{Handlebars, TemplateError};
+use anyhow::Error;
+use const_format::concatcp;
 use nix::unistd::Uid;
+use serde_json::json;
 
-use proxmox_lang::try_block;
 use proxmox_notify::context::pbs::PBS_CONTEXT;
 use proxmox_schema::ApiType;
-use proxmox_sys::email::sendmail;
 use proxmox_sys::fs::{create_path, CreateOptions};
 
+use crate::tape::TapeNotificationMode;
 use pbs_api_types::{
     APTUpdateInfo, DataStoreConfig, DatastoreNotify, GarbageCollectionStatus, NotificationMode,
     Notify, SyncJobConfig, TapeBackupJobSetup, User, Userid, VerificationJobConfig,
@@ -23,92 +21,6 @@ use proxmox_notify::{Endpoint, Notification, Severity};
 
 const SPOOL_DIR: &str = concatcp!(pbs_buildcfg::PROXMOX_BACKUP_STATE_DIR, "/notifications");
 
-const TAPE_BACKUP_OK_TEMPLATE: &str = r###"
-
-{{#if id ~}}
-Job ID:     {{id}}
-{{/if~}}
-Datastore:  {{job.store}}
-Tape Pool:  {{job.pool}}
-Tape Drive: {{job.drive}}
-
-{{#if snapshot-list ~}}
-Snapshots included:
-
-{{#each snapshot-list~}}
-{{this}}
-{{/each~}}
-{{/if}}
-Duration: {{duration}}
-{{#if used-tapes }}
-Used Tapes:
-{{#each used-tapes~}}
-{{this}}
-{{/each~}}
-{{/if}}
-Tape Backup successful.
-
-
-Please visit the web interface for further details:
-
-<https://{{fqdn}}:{{port}}/#DataStore-{{job.store}}>
-
-"###;
-
-const TAPE_BACKUP_ERR_TEMPLATE: &str = r###"
-
-{{#if id ~}}
-Job ID:     {{id}}
-{{/if~}}
-Datastore:  {{job.store}}
-Tape Pool:  {{job.pool}}
-Tape Drive: {{job.drive}}
-
-{{#if snapshot-list ~}}
-Snapshots included:
-
-{{#each snapshot-list~}}
-{{this}}
-{{/each~}}
-{{/if}}
-{{#if used-tapes }}
-Used Tapes:
-{{#each used-tapes~}}
-{{this}}
-{{/each~}}
-{{/if}}
-Tape Backup failed: {{error}}
-
-
-Please visit the web interface for further details:
-
-<https://{{fqdn}}:{{port}}/#pbsServerAdministration:tasks>
-
-"###;
-
-lazy_static::lazy_static! {
-
-    static ref HANDLEBARS: Handlebars<'static> = {
-        let mut hb = Handlebars::new();
-        let result: Result<(), TemplateError> = try_block!({
-
-            hb.set_strict_mode(true);
-            hb.register_escape_fn(handlebars::no_escape);
-
-            hb.register_template_string("tape_backup_ok_template", TAPE_BACKUP_OK_TEMPLATE)?;
-            hb.register_template_string("tape_backup_err_template", TAPE_BACKUP_ERR_TEMPLATE)?;
-
-            Ok(())
-        });
-
-        if let Err(err) = result {
-            eprintln!("error during template registration: {err}");
-        }
-
-        hb
-    };
-}
-
 /// Initialize the notification system by setting context in proxmox_notify
 pub fn init() -> Result<(), Error> {
     proxmox_notify::context::set_context(&PBS_CONTEXT);
@@ -229,30 +141,6 @@ pub struct TapeBackupJobSummary {
     pub used_tapes: Option<Vec<String>>,
 }
 
-fn send_job_status_mail(email: &str, subject: &str, text: &str) -> Result<(), Error> {
-    let (config, _) = crate::config::node::config()?;
-    let from = config.email_from;
-
-    // NOTE: some (web)mailers have big problems displaying text mails, so include html as well
-    let escaped_text = handlebars::html_escape(text);
-    let html = format!("<html><body><pre>\n{escaped_text}\n<pre>");
-
-    let nodename = proxmox_sys::nodename();
-
-    let author = format!("Proxmox Backup Server - {nodename}");
-
-    sendmail(
-        &[email],
-        subject,
-        Some(text),
-        Some(&html),
-        from.as_deref(),
-        Some(&author),
-    )?;
-
-    Ok(())
-}
-
 pub fn send_gc_status(
     datastore: &str,
     status: &GarbageCollectionStatus,
@@ -463,7 +351,6 @@ pub fn send_sync_status(job: &SyncJobConfig, result: &Result<(), Error>) -> Resu
 }
 
 pub fn send_tape_backup_status(
-    email: &str,
     id: Option<&str>,
     job: &TapeBackupJobSetup,
     result: &Result<(), Error>,
@@ -478,62 +365,86 @@ pub fn send_tape_backup_status(
         "id": id,
         "snapshot-list": summary.snapshot_list,
         "used-tapes": summary.used_tapes,
-        "duration": duration.to_string(),
+        "job-duration": duration.to_string(),
     });
 
-    let text = match result {
-        Ok(()) => HANDLEBARS.render("tape_backup_ok_template", &data)?,
+    let (template, severity) = match result {
+        Ok(()) => ("tape-backup-ok", Severity::Info),
         Err(err) => {
             data["error"] = err.to_string().into();
-            HANDLEBARS.render("tape_backup_err_template", &data)?
+            ("tape-backup-err", Severity::Error)
         }
     };
 
-    let subject = match (result, id) {
-        (Ok(()), Some(id)) => format!("Tape Backup '{id}' datastore '{}' successful", job.store,),
-        (Ok(()), None) => format!("Tape Backup datastore '{}' successful", job.store,),
-        (Err(_), Some(id)) => format!("Tape Backup '{id}' datastore '{}' failed", job.store,),
-        (Err(_), None) => format!("Tape Backup datastore '{}' failed", job.store,),
-    };
+    let mut metadata = HashMap::from([
+        ("datastore".into(), job.store.clone()),
+        ("media-pool".into(), job.pool.clone()),
+        ("hostname".into(), proxmox_sys::nodename().into()),
+        ("type".into(), "tape-backup".into()),
+    ]);
 
-    send_job_status_mail(email, &subject, &text)?;
+    if let Some(id) = id {
+        metadata.insert("job-id".into(), id.into());
+    }
+
+    let notification = Notification::from_template(severity, template, data, metadata);
+
+    let mode = TapeNotificationMode::from(job);
+
+    match &mode {
+        TapeNotificationMode::LegacySendmail { notify_user } => {
+            let email = lookup_user_email(notify_user);
+
+            if let Some(email) = email {
+                send_sendmail_legacy_notification(notification, &email)?;
+            }
+        }
+        TapeNotificationMode::NotificationSystem => {
+            send_notification(notification)?;
+        }
+    }
 
     Ok(())
 }
 
 /// Send email to a person to request a manual media change
-pub fn send_load_media_email(
+pub fn send_load_media_notification(
+    mode: &TapeNotificationMode,
     changer: bool,
     device: &str,
     label_text: &str,
-    to: &str,
     reason: Option<String>,
 ) -> Result<(), Error> {
-    use std::fmt::Write as _;
-
     let device_type = if changer { "changer" } else { "drive" };
 
-    let subject = format!("Load Media '{label_text}' request for {device_type} '{device}'");
+    let data = json!({
+        "device-type": device_type,
+        "device": device,
+        "label-text": label_text,
+        "reason": reason,
+        "is-changer": changer,
+    });
 
-    let mut text = String::new();
+    let metadata = HashMap::from([
+        ("hostname".into(), proxmox_sys::nodename().into()),
+        ("type".into(), "tape-load".into()),
+    ]);
+    let notification = Notification::from_template(Severity::Notice, "tape-load", data, metadata);
 
-    if let Some(reason) = reason {
-        let _ = write!(
-            text,
-            "The {device_type} has the wrong or no tape(s) inserted. Error:\n{reason}\n\n"
-        );
-    }
+    match mode {
+        TapeNotificationMode::LegacySendmail { notify_user } => {
+            let email = lookup_user_email(notify_user);
 
-    if changer {
-        text.push_str("Please insert the requested media into the changer.\n\n");
-        let _ = writeln!(text, "Changer: {device}");
-    } else {
-        text.push_str("Please insert the requested media into the backup drive.\n\n");
-        let _ = writeln!(text, "Drive: {device}");
+            if let Some(email) = email {
+                send_sendmail_legacy_notification(notification, &email)?;
+            }
+        }
+        TapeNotificationMode::NotificationSystem => {
+            send_notification(notification)?;
+        }
     }
-    let _ = writeln!(text, "Media: {label_text}");
 
-    send_job_status_mail(to, &subject, &text)
+    Ok(())
 }
 
 fn get_server_url() -> (String, usize) {
@@ -653,9 +564,3 @@ pub fn lookup_datastore_notify_settings(
 
     (email, notify, notification_mode)
 }
-
-#[test]
-fn test_template_register() {
-    assert!(HANDLEBARS.has_template("tape_backup_ok_template"));
-    assert!(HANDLEBARS.has_template("tape_backup_err_template"));
-}
diff --git a/src/tape/drive/mod.rs b/src/tape/drive/mod.rs
index 8607d64b..39602461 100644
--- a/src/tape/drive/mod.rs
+++ b/src/tape/drive/mod.rs
@@ -27,8 +27,9 @@ use pbs_key_config::KeyConfig;
 
 use pbs_tape::{sg_tape::TapeAlertFlags, BlockReadError, MediaContentHeader, TapeRead, TapeWrite};
 
+use crate::tape::TapeNotificationMode;
 use crate::{
-    server::send_load_media_email,
+    server::send_load_media_notification,
     tape::{
         changer::{MediaChange, MtxMediaChanger},
         drive::virtual_tape::open_virtual_tape_drive,
@@ -368,7 +369,7 @@ pub fn request_and_load_media(
     config: &SectionConfigData,
     drive: &str,
     label: &MediaLabel,
-    notify_email: &Option<String>,
+    notification_mode: &TapeNotificationMode,
 ) -> Result<(Box<dyn TapeDriver>, MediaId), Error> {
     let check_label = |handle: &mut dyn TapeDriver, uuid: &proxmox_uuid::Uuid| {
         if let Ok((Some(media_id), _)) = handle.read_label() {
@@ -428,15 +429,14 @@ pub fn request_and_load_media(
                                     device_type,
                                     device
                                 );
-                                if let Some(to) = notify_email {
-                                    send_load_media_email(
-                                        changer.is_some(),
-                                        device,
-                                        &label_text,
-                                        to,
-                                        Some(new.to_string()),
-                                    )?;
-                                }
+                                send_load_media_notification(
+                                    notification_mode,
+                                    changer.is_some(),
+                                    device,
+                                    &label_text,
+                                    Some(new.to_string()),
+                                )?;
+
                                 *old = new;
                             }
                             Ok(())
diff --git a/src/tape/mod.rs b/src/tape/mod.rs
index 7a928884..f276f948 100644
--- a/src/tape/mod.rs
+++ b/src/tape/mod.rs
@@ -1,6 +1,7 @@
 //! Magnetic tape backup
 
 use anyhow::{format_err, Error};
+use proxmox_auth_api::types::Userid;
 
 use proxmox_sys::fs::{create_path, CreateOptions};
 
@@ -29,6 +30,7 @@ pub use media_catalog::*;
 
 mod media_catalog_cache;
 pub use media_catalog_cache::*;
+use pbs_api_types::{NotificationMode, TapeBackupJobSetup};
 
 mod pool_writer;
 pub use pool_writer::*;
@@ -128,3 +130,28 @@ pub fn create_changer_state_dir() -> Result<(), Error> {
 
     Ok(())
 }
+
+#[derive(Clone)]
+pub enum TapeNotificationMode {
+    LegacySendmail { notify_user: Userid },
+    NotificationSystem,
+}
+
+impl From<&TapeBackupJobSetup> for TapeNotificationMode {
+    fn from(value: &TapeBackupJobSetup) -> Self {
+        Self::from((value.notify_user.clone(), value.notification_mode.clone()))
+    }
+}
+
+impl From<(Option<Userid>, Option<NotificationMode>)> for TapeNotificationMode {
+    fn from(value: (Option<Userid>, Option<NotificationMode>)) -> Self {
+        match value.1.as_ref().unwrap_or(&Default::default()) {
+            NotificationMode::LegacySendmail => {
+                let notify_user = value.0.as_ref().unwrap_or(Userid::root_userid()).clone();
+
+                Self::LegacySendmail { notify_user }
+            }
+            NotificationMode::NotificationSystem => Self::NotificationSystem,
+        }
+    }
+}
diff --git a/src/tape/pool_writer/mod.rs b/src/tape/pool_writer/mod.rs
index a6ba4a1d..21426080 100644
--- a/src/tape/pool_writer/mod.rs
+++ b/src/tape/pool_writer/mod.rs
@@ -25,7 +25,8 @@ use crate::tape::{
     file_formats::{
         tape_write_catalog, tape_write_snapshot_archive, ChunkArchiveWriter, MediaSetLabel,
     },
-    MediaCatalog, MediaId, MediaPool, COMMIT_BLOCK_SIZE, MAX_CHUNK_ARCHIVE_SIZE, TAPE_STATUS_DIR,
+    MediaCatalog, MediaId, MediaPool, TapeNotificationMode, COMMIT_BLOCK_SIZE,
+    MAX_CHUNK_ARCHIVE_SIZE, TAPE_STATUS_DIR,
 };
 
 use super::file_formats::{
@@ -52,7 +53,7 @@ pub struct PoolWriter {
     drive_name: String,
     status: Option<PoolWriterState>,
     catalog_set: Arc<Mutex<CatalogSet>>,
-    notify_email: Option<String>,
+    notification_mode: TapeNotificationMode,
     ns_magic: bool,
     used_tapes: HashSet<Uuid>,
 }
@@ -62,7 +63,7 @@ impl PoolWriter {
         mut pool: MediaPool,
         drive_name: &str,
         worker: &WorkerTask,
-        notify_email: Option<String>,
+        notification_mode: TapeNotificationMode,
         force_media_set: bool,
         ns_magic: bool,
     ) -> Result<Self, Error> {
@@ -90,7 +91,7 @@ impl PoolWriter {
             drive_name: drive_name.to_string(),
             status: None,
             catalog_set: Arc::new(Mutex::new(catalog_set)),
-            notify_email,
+            notification_mode,
             ns_magic,
             used_tapes: HashSet::new(),
         })
@@ -248,7 +249,7 @@ impl PoolWriter {
             &drive_config,
             &self.drive_name,
             media.label(),
-            &self.notify_email,
+            &self.notification_mode,
         )?;
 
         // test for critical tape alert flags
diff --git a/templates/Makefile b/templates/Makefile
index 824d28d9..0f8ad72c 100644
--- a/templates/Makefile
+++ b/templates/Makefile
@@ -17,6 +17,12 @@ NOTIFICATION_TEMPLATES=						\
 	default/sync-ok-body.txt.hbs			\
 	default/sync-err-subject.txt.hbs		\
 	default/sync-ok-subject.txt.hbs			\
+	default/tape-backup-err-body.txt.hbs	\
+	default/tape-backup-err-subject.txt.hbs	\
+	default/tape-backup-ok-body.txt.hbs		\
+	default/tape-backup-ok-subject.txt.hbs	\
+	default/tape-load-body.txt.hbs			\
+	default/tape-load-subject.txt.hbs		\
 	default/test-body.txt.hbs				\
 	default/test-body.html.hbs				\
 	default/test-subject.txt.hbs			\
diff --git a/templates/default/tape-backup-err-body.txt.hbs b/templates/default/tape-backup-err-body.txt.hbs
new file mode 100644
index 00000000..cc45c882
--- /dev/null
+++ b/templates/default/tape-backup-err-body.txt.hbs
@@ -0,0 +1,26 @@
+{{#if id ~}}
+Job ID:     {{id}}
+{{/if~}}
+Datastore:  {{job.store}}
+Tape Pool:  {{job.pool}}
+Tape Drive: {{job.drive}}
+
+{{#if snapshot-list ~}}
+Snapshots included:
+
+{{#each snapshot-list~}}
+{{this}}
+{{/each~}}
+{{/if}}
+{{#if used-tapes }}
+Used Tapes:
+{{#each used-tapes~}}
+{{this}}
+{{/each~}}
+{{/if}}
+Tape Backup failed: {{error}}
+
+
+Please visit the web interface for further details:
+
+<https://{{fqdn}}:{{port}}/#pbsServerAdministration:tasks>
diff --git a/templates/default/tape-backup-err-subject.txt.hbs b/templates/default/tape-backup-err-subject.txt.hbs
new file mode 100644
index 00000000..b52d338a
--- /dev/null
+++ b/templates/default/tape-backup-err-subject.txt.hbs
@@ -0,0 +1,5 @@
+{{#if id~}}
+Tape Backup '{{ id }}' datastore '{{ job.store }}' failed
+{{else~}}
+Tape Backup datastore '{{ job.store }}' failed
+{{/if}}
diff --git a/templates/default/tape-backup-ok-body.txt.hbs b/templates/default/tape-backup-ok-body.txt.hbs
new file mode 100644
index 00000000..ede51d05
--- /dev/null
+++ b/templates/default/tape-backup-ok-body.txt.hbs
@@ -0,0 +1,27 @@
+{{#if id ~}}
+Job ID:     {{id}}
+{{/if~}}
+Datastore:  {{job.store}}
+Tape Pool:  {{job.pool}}
+Tape Drive: {{job.drive}}
+
+{{#if snapshot-list ~}}
+Snapshots included:
+
+{{#each snapshot-list~}}
+{{this}}
+{{/each~}}
+{{/if}}
+Duration: {{job-duration}}
+{{#if used-tapes }}
+Used Tapes:
+{{#each used-tapes~}}
+{{this}}
+{{/each~}}
+{{/if}}
+Tape Backup successful.
+
+
+Please visit the web interface for further details:
+
+<https://{{fqdn}}:{{port}}/#DataStore-{{job.store}}>
diff --git a/templates/default/tape-backup-ok-subject.txt.hbs b/templates/default/tape-backup-ok-subject.txt.hbs
new file mode 100644
index 00000000..c475c05b
--- /dev/null
+++ b/templates/default/tape-backup-ok-subject.txt.hbs
@@ -0,0 +1,5 @@
+{{#if id~}}
+Tape Backup '{{ id }}' datastore '{{ job.store }}' successful
+{{else~}}
+Tape Backup datastore '{{ job.store }}' successful
+{{/if}}
diff --git a/templates/default/tape-load-body.txt.hbs b/templates/default/tape-load-body.txt.hbs
new file mode 100644
index 00000000..ddc8a9e1
--- /dev/null
+++ b/templates/default/tape-load-body.txt.hbs
@@ -0,0 +1,15 @@
+{{#if reason~}}
+The {{ device-type }} has the wrong or no tape(s) inserted. Error:
+{{ reason }}
+
+{{/if~}}
+{{#if is-changer~}}
+Please insert the requested media into the changer.
+
+Changer: {{ device }}
+{{else}}
+Please insert the requested media into the backup drive.
+
+Drive: {{ device }}
+{{/if}}
+Media: {{ label-text }}
diff --git a/templates/default/tape-load-subject.txt.hbs b/templates/default/tape-load-subject.txt.hbs
new file mode 100644
index 00000000..10f6a02e
--- /dev/null
+++ b/templates/default/tape-load-subject.txt.hbs
@@ -0,0 +1 @@
+Load Media '{{ label-text }}' request for {{ device-type }} '{{ device }}'
-- 
2.39.2



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