[pbs-devel] [PATCH proxmox{, -backup} v3 0/5] unmount datastores after sync job

[pbs-devel] [PATCH proxmox{, -backup} v3 0/5] unmount datastores after sync job

[Hannes Laimer]

Adds the option to automatically unmount a datastore after a sync job
finishes.

The idea is that, in combination with run-on-mount, it is possible to
have datastores sync to external drives without the need to open the web
ui or terminal. This came up a handful of times in support and a recent
thread on the forum. Basically, also non-tech people could be tasked
with plugging and unplugging different drives regularly and mounting,
sync and unmounting would be done automatically.

Currently if any of the triggered jobs have the 'unmount-on-done' flag
set the datastore will be unmounted right after the last of the
triggered jobs finishes.

This seemed pretty straight forward and should be good in most use-cases
I came up with.


v3, thanks @Fabian:
 - pull logic for unmounting out of endpoint so we can easily use the
   function directly instead of going through the API
 - add validation to sync job update endpoint, only allow
   unmount_on_done to be set if run_on_mount is set
 - unmounting now done by caller
 - improve commit message

v2, thanks @Robert and @Shannon
 - include short docs section
 - fix typo
 - fix test
 - use `|=` (instead of `= ... || ...`)


proxmox:

Hannes Laimer (1):
  pbs-api-types: add 'unmount-on-done' field to sync job config

 pbs-api-types/src/jobs.rs | 9 +++++++++
 1 file changed, 9 insertions(+)


proxmox-backup:

Hannes Laimer (4):
  api: syncjob: correctly update/delete 'unmount-on-done' field
  api: datastore: auto-unmount after mount-triggered sync
  ui: add 'unmount-on-done' field to SyncJobEdit window
  docs: add section about `unmount-on-done`

 docs/managing-remotes.rst   |  4 ++
 src/api2/admin/datastore.rs | 96 ++++++++++++++++++++++---------------
 src/api2/config/sync.rs     | 12 +++++
 www/window/SyncJobEdit.js   | 26 ++++++++++
 4 files changed, 99 insertions(+), 39 deletions(-)


Summary over all repositories:
  5 files changed, 108 insertions(+), 39 deletions(-)

-- 
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[pbs-devel] [PATCH proxmox v3 1/1] pbs-api-types: add 'unmount-on-done' field to sync job config

[Hannes Laimer]

Signed-off-by: Hannes Laimer <h.laimer@proxmox.com>
---
 pbs-api-types/src/jobs.rs | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/pbs-api-types/src/jobs.rs b/pbs-api-types/src/jobs.rs
index 4dbbef2b..2e3c1c62 100644
--- a/pbs-api-types/src/jobs.rs
+++ b/pbs-api-types/src/jobs.rs
@@ -538,6 +538,9 @@ pub const SYNC_VERIFIED_ONLY_SCHEMA: Schema =
     BooleanSchema::new("Only synchronize verified backup snapshots, exclude others.").schema();
 pub const RUN_SYNC_ON_MOUNT_SCHEMA: Schema =
     BooleanSchema::new("Run this job when a relevant datastore is mounted.").schema();
+pub const UNMOUNT_ON_SYNC_DONE_SCHEMA: Schema =
+    BooleanSchema::new("Unmount involved removable datastore after the sync job finishes. Requires 'run-on-mount' to be enabled.")
+        .schema();
 
 #[api(
     properties: {
@@ -609,6 +612,10 @@ pub const RUN_SYNC_ON_MOUNT_SCHEMA: Schema =
             schema: RUN_SYNC_ON_MOUNT_SCHEMA,
             optional: true,
         },
+        "unmount-on-done": {
+            schema: UNMOUNT_ON_SYNC_DONE_SCHEMA,
+            optional: true,
+        },
         "sync-direction": {
             type: SyncDirection,
             optional: true,
@@ -655,6 +662,8 @@ pub struct SyncJobConfig {
     #[serde(skip_serializing_if = "Option::is_none")]
     pub run_on_mount: Option<bool>,
     #[serde(skip_serializing_if = "Option::is_none")]
+    pub unmount_on_done: Option<bool>,
+    #[serde(skip_serializing_if = "Option::is_none")]
     pub sync_direction: Option<SyncDirection>,
 }
 
-- 
2.47.3



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[pbs-devel] applied: [PATCH proxmox v3 1/1] pbs-api-types: add 'unmount-on-done' field to sync job config

[Thomas Lamprecht]

On Wed, 12 Nov 2025 13:05:11 +0100, Hannes Laimer wrote:
> 


Applied, thanks!

[1/1] pbs-api-types: add 'unmount-on-done' field to sync job config
      commit: 9fdbcf18237c3ef368a0322d9d31891edd45a50e


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[pbs-devel] [PATCH proxmox-backup v3 1/4] api: syncjob: correctly update/delete 'unmount-on-done' field

[Hannes Laimer]

Signed-off-by: Hannes Laimer <h.laimer@proxmox.com>
---
 src/api2/config/sync.rs | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/src/api2/config/sync.rs b/src/api2/config/sync.rs
index 358409b5..dff447cb 100644
--- a/src/api2/config/sync.rs
+++ b/src/api2/config/sync.rs
@@ -341,6 +341,8 @@ pub enum DeletableProperty {
     VerifiedOnly,
     /// Delete the run_on_mount property,
     RunOnMount,
+    /// Delete the unmount_on_done property,
+    UnmountOnDone,
     /// Delete the sync_direction property,
     SyncDirection,
 }
@@ -463,6 +465,9 @@ pub fn update_sync_job(
                 DeletableProperty::RunOnMount => {
                     data.run_on_mount = None;
                 }
+                DeletableProperty::UnmountOnDone => {
+                    data.unmount_on_done = None;
+                }
                 DeletableProperty::SyncDirection => {
                     data.sync_direction = None;
                 }
@@ -515,6 +520,12 @@ pub fn update_sync_job(
     if let Some(run_on_mount) = update.run_on_mount {
         data.run_on_mount = Some(run_on_mount);
     }
+    if let Some(unmount_on_done) = update.unmount_on_done {
+        if unmount_on_done && data.run_on_mount != Some(true) {
+            bail!("'unmount-on-done' can only be set when 'run-on-mount' is enabled");
+        }
+        data.unmount_on_done = Some(unmount_on_done);
+    }
     if let Some(sync_direction) = update.sync_direction {
         data.sync_direction = Some(sync_direction);
     }
@@ -692,6 +703,7 @@ acl:1:/remote/remote1/remotestore1:write@pbs:RemoteSyncOperator
         encrypted_only: None,
         verified_only: None,
         run_on_mount: None,
+        unmount_on_done: None,
         sync_direction: None, // use default
     };
 
-- 
2.47.3



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[pbs-devel] [PATCH proxmox-backup v3 2/4] api: datastore: auto-unmount after mount-triggered sync

[Hannes Laimer]

When a datastore mount triggers sync jobs, unmount the datastore afterwards
if any such job has unmount_on_done=true. This applies only to mount-triggered
runs. Manual and scheduled syncs run in the proxy and cannot perform the
privileged unmount.

Signed-off-by: Hannes Laimer <h.laimer@proxmox.com>
---
 src/api2/admin/datastore.rs | 96 ++++++++++++++++++++++---------------
 1 file changed, 57 insertions(+), 39 deletions(-)

diff --git a/src/api2/admin/datastore.rs b/src/api2/admin/datastore.rs
index 6e269ef9..911378d7 100644
--- a/src/api2/admin/datastore.rs
+++ b/src/api2/admin/datastore.rs
@@ -2454,6 +2454,7 @@ async fn do_sync_jobs(
             }
         }
     }
+
     Ok(())
 }
 
@@ -2515,30 +2516,44 @@ pub fn mount(store: String, rpcenv: &mut dyn RpcEnvironment) -> Result<Value, Er
                 warn!("unable to parse sync job config, won't run any sync jobs");
                 return Ok(());
             };
-            let mut jobs_to_run: Vec<SyncJobConfig> = list
-                .into_iter()
-                .filter(|job: &SyncJobConfig| {
-                    // add job iff (running on mount is enabled and) any of these apply
-                    //   - the jobs is local and we are source or target
-                    //   - we are the source of a push to a remote
-                    //   - we are the target of a pull from a remote
-                    //
-                    // `job.store == datastore.name` iff we are the target for pull from remote or we
-                    // are the source for push to remote, therefore we don't have to check for the
-                    // direction of the job.
-                    job.run_on_mount.unwrap_or(false)
-                        && (job.remote.is_none() && job.remote_store == name || job.store == name)
-                })
-                .collect();
+            let (unmount_on_done, mut jobs_to_run): (bool, Vec<SyncJobConfig>) =
+                list.into_iter().fold(
+                    (false, Vec::new()),
+                    |(mut unmount, mut jobs), job: SyncJobConfig| {
+                        // add job iff (running on mount is enabled and) any of these apply
+                        //   - the jobs is local and we are source or target
+                        //   - we are the source of a push to a remote
+                        //   - we are the target of a pull from a remote
+                        //
+                        // `job.store == datastore.name` iff we are the target for pull from remote or we
+                        // are the source for push to remote, therefore we don't have to check for the
+                        // direction of the job.
+                        let should_run = job.run_on_mount.unwrap_or(false)
+                            && (job.remote.is_none() && job.remote_store == name
+                                || job.store == name);
+                        if should_run {
+                            unmount |= job.unmount_on_done.unwrap_or_default();
+                            jobs.push(job);
+                        };
+                        (unmount, jobs)
+                    },
+                );
             jobs_to_run.sort_by(|j1, j2| j1.id.cmp(&j2.id));
             if !jobs_to_run.is_empty() {
                 info!("starting {} sync jobs", jobs_to_run.len());
                 let _ = WorkerTask::spawn(
                     "mount-sync-jobs",
-                    Some(store),
+                    Some(store.clone()),
                     auth_id.to_string(),
                     false,
-                    move |worker| async move { do_sync_jobs(jobs_to_run, worker).await },
+                    move |worker| async move {
+                        let res = do_sync_jobs(jobs_to_run, worker).await;
+                        if unmount_on_done {
+                            info!("start unmounting...");
+                            do_unmount(store, auth_id, false).await?;
+                        }
+                        res
+                    },
                 );
             }
             Ok(())
@@ -2624,25 +2639,7 @@ fn do_unmount_device(
     Ok(())
 }
 
-#[api(
-    protected: true,
-    input: {
-        properties: {
-            store: { schema: DATASTORE_SCHEMA },
-        },
-    },
-    returns: {
-        schema: UPID_SCHEMA,
-    },
-    access: {
-        permission: &Permission::And(&[
-            &Permission::Privilege(&["datastore", "{store}"], PRIV_DATASTORE_MODIFY, true),
-            &Permission::Privilege(&["system", "disks"], PRIV_SYS_MODIFY, false)
-        ]),
-    }
-)]
-/// Unmount a removable device that is associated with the datastore
-pub async fn unmount(store: String, rpcenv: &mut dyn RpcEnvironment) -> Result<Value, Error> {
+async fn do_unmount(store: String, auth_id: Authid, to_stdout: bool) -> Result<Value, Error> {
     let _lock = pbs_config::datastore::lock_config()?;
     let (mut section_config, _digest) = pbs_config::datastore::config()?;
     let mut datastore: DataStoreConfig = section_config.lookup("datastore", &store)?;
@@ -2662,9 +2659,6 @@ pub async fn unmount(store: String, rpcenv: &mut dyn RpcEnvironment) -> Result<V
 
     drop(_lock);
 
-    let auth_id: Authid = rpcenv.get_auth_id().unwrap().parse()?;
-    let to_stdout = rpcenv.env_type() == RpcEnvironmentType::CLI;
-
     if let Ok(proxy_pid) = proxmox_rest_server::read_pid(pbs_buildcfg::PROXMOX_BACKUP_PROXY_PID_FN)
     {
         let sock = proxmox_daemon::command_socket::path_from_pid(proxy_pid);
@@ -2689,6 +2683,30 @@ pub async fn unmount(store: String, rpcenv: &mut dyn RpcEnvironment) -> Result<V
     Ok(json!(upid))
 }
 
+#[api(
+    protected: true,
+    input: {
+        properties: {
+            store: { schema: DATASTORE_SCHEMA },
+        },
+    },
+    returns: {
+        schema: UPID_SCHEMA,
+    },
+    access: {
+        permission: &Permission::And(&[
+            &Permission::Privilege(&["datastore", "{store}"], PRIV_DATASTORE_MODIFY, true),
+            &Permission::Privilege(&["system", "disks"], PRIV_SYS_MODIFY, false)
+        ]),
+    }
+)]
+/// Unmount a removable device that is associated with the datastore
+pub async fn unmount(store: String, rpcenv: &mut dyn RpcEnvironment) -> Result<Value, Error> {
+    let auth_id: Authid = rpcenv.get_auth_id().unwrap().parse()?;
+    let to_stdout = rpcenv.env_type() == RpcEnvironmentType::CLI;
+    do_unmount(store, auth_id, to_stdout).await
+}
+
 #[api(
     protected: true,
     input: {
-- 
2.47.3



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[pbs-devel] [PATCH proxmox-backup v3 3/4] ui: add 'unmount-on-done' field to SyncJobEdit window

[Hannes Laimer]

Signed-off-by: Hannes Laimer <h.laimer@proxmox.com>
---
 www/window/SyncJobEdit.js | 26 ++++++++++++++++++++++++++
 1 file changed, 26 insertions(+)

diff --git a/www/window/SyncJobEdit.js b/www/window/SyncJobEdit.js
index 14ffddcd..074c7855 100644
--- a/www/window/SyncJobEdit.js
+++ b/www/window/SyncJobEdit.js
@@ -122,6 +122,7 @@ Ext.define('PBS.window.SyncJobEdit', {
                     }
                     if (!me.isCreate) {
                         PBS.Utils.delete_if_default(values, 'run-on-mount', false);
+                        PBS.Utils.delete_if_default(values, 'unmount-on-done', false);
                         PBS.Utils.delete_if_default(values, 'rate-in');
                         PBS.Utils.delete_if_default(values, 'rate-out');
                         PBS.Utils.delete_if_default(values, 'remote');
@@ -499,9 +500,34 @@ Ext.define('PBS.window.SyncJobEdit', {
                                 'Run this job when a relevant removable datastore gets mounted.',
                             ),
                         },
+                        listeners: {
+                            change: function (field, runOnMount) {
+                                let me = this;
+                                let view = me.up('pbsSyncJobEdit');
+                                let unmountOnDoneCb = view.down('field[name=unmount-on-done]');
+                                unmountOnDoneCb.setDisabled(!runOnMount);
+                                if (!runOnMount) {
+                                    unmountOnDoneCb.setValue(false);
+                                }
+                            },
+                        },
                         uncheckedValue: false,
                         value: false,
                     },
+                    {
+                        xtype: 'proxmoxcheckbox',
+                        name: 'unmount-on-done',
+                        fieldLabel: gettext('Unmount when done'),
+                        autoEl: {
+                            tag: 'div',
+                            'data-qtip': gettext(
+                                'Unmount relevant removable datastore once sync job finishes.',
+                            ),
+                        },
+                        uncheckedValue: false,
+                        value: false,
+                        disabled: true,
+                    },
                 ],
             },
             {
-- 
2.47.3



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[pbs-devel] [PATCH proxmox-backup v3 4/4] docs: add section about `unmount-on-done`

[Hannes Laimer]

Signed-off-by: Hannes Laimer <h.laimer@proxmox.com>
---
 docs/managing-remotes.rst | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/docs/managing-remotes.rst b/docs/managing-remotes.rst
index b6ebda18..60ac3bc6 100644
--- a/docs/managing-remotes.rst
+++ b/docs/managing-remotes.rst
@@ -150,6 +150,10 @@ relevant removable datastore is mounted. If mounting a removable datastore would
 multiple sync jobs, these jobs will be run sequentially in alphabetical order based on
 their ID.
 
+If the ``unmount-on-done`` flag is set, the datastore will be automatically unmounted
+after the sync job finishes. This option is only available for sync jobs triggered by
+mounting (``run-on-mount``), enabling fully automated external drive workflows.
+
 Namespace Support
 ^^^^^^^^^^^^^^^^^
 
-- 
2.47.3



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Re: [pbs-devel] [PATCH proxmox{, -backup} v3 0/5] unmount datastores after sync job

[Thomas Lamprecht]

On Wed, 12 Nov 2025 13:05:10 +0100, Hannes Laimer wrote:
> Adds the option to automatically unmount a datastore after a sync job
> finishes.
> 
> The idea is that, in combination with run-on-mount, it is possible to
> have datastores sync to external drives without the need to open the web
> ui or terminal. This came up a handful of times in support and a recent
> thread on the forum. Basically, also non-tech people could be tasked
> with plugging and unplugging different drives regularly and mounting,
> sync and unmounting would be done automatically.
> 
> [...]

Applied, thanks!

[1/4] api: syncjob: correctly update/delete 'unmount-on-done' field
      commit: 2eb654bac9462e67f117546f8af73d41371a55db
[2/4] api: datastore: auto-unmount after mount-triggered sync
      commit: caec9e086ba37db82d8087609c8f1aaaad58a7b5
[3/4] ui: add 'unmount-on-done' field to SyncJobEdit window
      commit: db024782cebe9e11e6f85781befb773b50c6fb66
[4/4] docs: add section about `unmount-on-done`
      commit: 8d79779da60c8215633bbc6253afb85628a2b438


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