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Subject: Re: [pbs-devel] [PATCH proxmox-backup v9 23/26] api: node: allow
creation of removable datastore through directory endpoint
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On Tue Apr 23, 2024 at 10:29 AM CEST, Hannes Laimer wrote:
> Signed-off-by: Hannes Laimer <h.laimer@proxmox.com>
> ---
> src/api2/node/disks/directory.rs | 64 ++++++++++++++++++++++++++++++--
> 1 file changed, 61 insertions(+), 3 deletions(-)
>
> diff --git a/src/api2/node/disks/directory.rs b/src/api2/node/disks/directory.rs
> index 73af92cc..34304216 100644
> --- a/src/api2/node/disks/directory.rs
> +++ b/src/api2/node/disks/directory.rs
> @@ -123,6 +123,11 @@ pub fn list_datastore_mounts() -> Result<Vec<DatastoreMountInfo>, Error> {
> type: bool,
> optional: true,
> },
> + "removable-datastore": {
> + description: "The the added datastore is removable.",
One 'the' too much :)
> + type: bool,
> + optional: true,
> + },
> filesystem: {
> type: FileSystemType,
> optional: true,
> @@ -141,6 +146,7 @@ pub fn create_datastore_disk(
> name: String,
> disk: String,
> add_datastore: Option<bool>,
> + removable_datastore: Option<bool>,
> filesystem: Option<FileSystemType>,
> rpcenv: &mut dyn RpcEnvironment,
> ) -> Result<String, Error> {
> @@ -154,8 +160,59 @@ pub fn create_datastore_disk(
> bail!("disk '{}' is already in use.", disk);
> }
>
> - let mount_point = format!("{}{}", BASE_MOUNT_DIR, &name);
> + if let (Some(true), Some(true)) = (add_datastore, removable_datastore) {
> + let upid_str = WorkerTask::new_thread(
> + "dircreate",
> + Some(name.clone()),
> + auth_id,
> + to_stdout,
> + move |worker| {
> + task_log!(
> + worker,
> + "create removable datastore '{}' on disk {}",
> + name,
> + disk
> + );
> +
> + let filesystem = filesystem.unwrap_or(FileSystemType::Ext4);
> +
> + let manager = DiskManage::new();
> +
> + let disk = manager.disk_by_name(&disk)?;
> +
> + let partition = create_single_linux_partition(&disk)?;
> + create_file_system(&partition, filesystem)?;
> +
> + let uuid = get_fs_uuid(&partition)?;
> +
> + let lock = pbs_config::datastore::lock_config()?;
> + let datastore: DataStoreConfig = serde_json::from_value(
> + json!({ "name": name, "path": name, "backing-device": uuid }),
> + )?;
> +
> + let (config, _digest) = pbs_config::datastore::config()?;
> +
> + if config.sections.get(&datastore.name).is_some() {
> + bail!("datastore '{}' already exists.", datastore.name);
> + }
> +
> + // we don't have to check if the UUID is already in use since we just created the
> + // fs ourself
>
> + crate::api2::config::datastore::do_create_datastore(
> + lock,
> + config,
> + datastore,
> + Some(&worker),
> + )?;
> +
> + Ok(())
> + },
> + )?;
> + return Ok(upid_str);
> + };
> +
> + let mount_point = format!("{}{}", BASE_MOUNT_DIR, &name);
> // check if the default path exists already.
> // bail if it is not empty or another filesystem mounted on top
> let default_path = std::path::PathBuf::from(&mount_point);
> @@ -250,8 +307,9 @@ pub fn delete_datastore_disk(name: String) -> Result<(), Error> {
> // path of datastore cannot be changed
> let (config, _) = pbs_config::datastore::config()?;
> let datastores: Vec<DataStoreConfig> = config.convert_to_typed_array("datastore")?;
> - let conflicting_datastore: Option<DataStoreConfig> =
> - datastores.into_iter().find(|ds| ds.absolute_path() == path);
> + let conflicting_datastore: Option<DataStoreConfig> = datastores.into_iter().find(|ds| {
> + ds.absolute_path() == path || ds.get_mount_point().map_or(false, |mp| mp == path)
> + });
>
> if let Some(conflicting_datastore) = conflicting_datastore {
> bail!(
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