[pbs-devel] applied: [PATCH proxmox-backup 1/2] api2/tape/backup: add 'force-media-set' parameter to manual backup

[Dietmar Maurer]

applied both patches

On 5/10/21 4:45 PM, Dominik Csapak wrote:
> so that a user can force a new media set, e.g. if he uses the
> allocation policy 'continue', but wants to manually start a new
> media-set.
>
> Signed-off-by: Dominik Csapak <d.csapak at proxmox.com>
> ---
>   src/api2/tape/backup.rs     | 18 +++++++++++++++++-
>   src/api2/tape/media.rs      |  2 +-
>   src/tape/media_pool.rs      | 17 +++++++++++------
>   src/tape/pool_writer/mod.rs |  3 ++-
>   4 files changed, 31 insertions(+), 9 deletions(-)
>
> diff --git a/src/api2/tape/backup.rs b/src/api2/tape/backup.rs
> index 4dc35945..77b11bb0 100644
> --- a/src/api2/tape/backup.rs
> +++ b/src/api2/tape/backup.rs
> @@ -226,6 +226,7 @@ pub fn do_tape_backup_job(
>                       &setup,
>                       email.clone(),
>                       &mut summary,
> +                    false,
>                   )
>               });
>   
> @@ -312,6 +313,12 @@ pub fn run_tape_backup_job(
>                   type: TapeBackupJobSetup,
>                   flatten: true,
>               },
> +            "force-media-set": {
> +                description: "Ignore the allocation policy and start a new media-set.",
> +                optional: true,
> +                type: bool,
> +                default: false,
> +            },
>           },
>       },
>       returns: {
> @@ -327,6 +334,7 @@ pub fn run_tape_backup_job(
>   /// Backup datastore to tape media pool
>   pub fn backup(
>       setup: TapeBackupJobSetup,
> +    force_media_set: bool,
>       rpcenv: &mut dyn RpcEnvironment,
>   ) -> Result<Value, Error> {
>   
> @@ -373,6 +381,7 @@ pub fn backup(
>                   &setup,
>                   email.clone(),
>                   &mut summary,
> +                force_media_set,
>               );
>   
>               if let Some(email) = email {
> @@ -403,6 +412,7 @@ fn backup_worker(
>       setup: &TapeBackupJobSetup,
>       email: Option<String>,
>       summary: &mut TapeBackupJobSummary,
> +    force_media_set: bool,
>   ) -> Result<(), Error> {
>   
>       let status_path = Path::new(TAPE_STATUS_DIR);
> @@ -413,7 +423,13 @@ fn backup_worker(
>   
>       let pool = MediaPool::with_config(status_path, &pool_config, changer_name, false)?;
>   
> -    let mut pool_writer = PoolWriter::new(pool, &setup.drive, worker, email)?;
> +    let mut pool_writer = PoolWriter::new(
> +        pool,
> +        &setup.drive,
> +        worker,
> +        email,
> +        force_media_set
> +    )?;
>   
>       let mut group_list = BackupInfo::list_backup_groups(&datastore.base_path())?;
>   
> diff --git a/src/api2/tape/media.rs b/src/api2/tape/media.rs
> index 811fcb7e..683c74b8 100644
> --- a/src/api2/tape/media.rs
> +++ b/src/api2/tape/media.rs
> @@ -129,7 +129,7 @@ pub async fn list_media(
>           // Call start_write_session, so that we show the same status a
>           // backup job would see.
>           pool.force_media_availability();
> -        pool.start_write_session(current_time)?;
> +        pool.start_write_session(current_time, false)?;
>   
>           for media in pool.list_media() {
>               let expired = pool.media_is_expired(&media, current_time);
> diff --git a/src/tape/media_pool.rs b/src/tape/media_pool.rs
> index 039b46fc..dd471551 100644
> --- a/src/tape/media_pool.rs
> +++ b/src/tape/media_pool.rs
> @@ -258,7 +258,7 @@ impl MediaPool {
>       /// Make sure the current media set is usable for writing
>       ///
>       /// If not, starts a new media set. Also creates a new
> -    /// set if media_set_policy implies it.
> +    /// set if media_set_policy implies it, or if 'force' is true.
>       ///
>       /// Note: We also call this in list_media to compute correct media
>       /// status, so this must not change persistent/saved state.
> @@ -267,6 +267,7 @@ impl MediaPool {
>       pub fn start_write_session(
>           &mut self,
>           current_time: i64,
> +        force: bool,
>       ) -> Result<Option<String>, Error> {
>   
>           let _pool_lock = if self.no_media_set_locking {
> @@ -277,11 +278,15 @@ impl MediaPool {
>   
>           self.inventory.reload()?;
>   
> -        let mut create_new_set = match self.current_set_usable() {
> -             Err(err) => {
> -                 Some(err.to_string())
> -             }
> -             Ok(_) => None,
> +        let mut create_new_set = if force {
> +            Some(String::from("forced"))
> +        } else {
> +            match self.current_set_usable() {
> +                Err(err) => {
> +                    Some(err.to_string())
> +                }
> +                Ok(_) => None,
> +            }
>           };
>   
>           if create_new_set.is_none() {
> diff --git a/src/tape/pool_writer/mod.rs b/src/tape/pool_writer/mod.rs
> index 99fdb48c..a788cbeb 100644
> --- a/src/tape/pool_writer/mod.rs
> +++ b/src/tape/pool_writer/mod.rs
> @@ -71,11 +71,12 @@ impl PoolWriter {
>           drive_name: &str,
>           worker: &WorkerTask,
>           notify_email: Option<String>,
> +        force_media_set: bool,
>       ) -> Result<Self, Error> {
>   
>           let current_time = proxmox::tools::time::epoch_i64();
>   
> -        let new_media_set_reason = pool.start_write_session(current_time)?;
> +        let new_media_set_reason = pool.start_write_session(current_time, force_media_set)?;
>           if let Some(reason) = new_media_set_reason {
>               task_log!(
>                   worker,