From mboxrd@z Thu Jan  1 00:00:00 1970
Return-Path: <h.laimer@proxmox.com>
Received: from firstgate.proxmox.com (firstgate.proxmox.com [212.224.123.68])
 (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits)
 key-exchange X25519 server-signature RSA-PSS (2048 bits))
 (No client certificate requested)
 by lists.proxmox.com (Postfix) with ESMTPS id F3579D84A
 for <pbs-devel@lists.proxmox.com>; Thu, 21 Sep 2023 14:52:45 +0200 (CEST)
Received: from firstgate.proxmox.com (localhost [127.0.0.1])
 by firstgate.proxmox.com (Proxmox) with ESMTP id CD8411FCD4
 for <pbs-devel@lists.proxmox.com>; Thu, 21 Sep 2023 14:52:15 +0200 (CEST)
Received: from proxmox-new.maurer-it.com (proxmox-new.maurer-it.com
 [94.136.29.106])
 (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits)
 key-exchange X25519 server-signature RSA-PSS (2048 bits))
 (No client certificate requested)
 by firstgate.proxmox.com (Proxmox) with ESMTPS
 for <pbs-devel@lists.proxmox.com>; Thu, 21 Sep 2023 14:52:15 +0200 (CEST)
Received: from proxmox-new.maurer-it.com (localhost.localdomain [127.0.0.1])
 by proxmox-new.maurer-it.com (Proxmox) with ESMTP id 0964448607
 for <pbs-devel@lists.proxmox.com>; Thu, 21 Sep 2023 14:52:15 +0200 (CEST)
From: Hannes Laimer <h.laimer@proxmox.com>
To: pbs-devel@lists.proxmox.com
Date: Thu, 21 Sep 2023 14:51:49 +0200
Message-Id: <20230921125207.1301656-8-h.laimer@proxmox.com>
X-Mailer: git-send-email 2.39.2
In-Reply-To: <20230921125207.1301656-1-h.laimer@proxmox.com>
References: <20230921125207.1301656-1-h.laimer@proxmox.com>
MIME-Version: 1.0
Content-Transfer-Encoding: 8bit
X-SPAM-LEVEL: Spam detection results:  0
 AWL -0.018 Adjusted score from AWL reputation of From: address
 BAYES_00                 -1.9 Bayes spam probability is 0 to 1%
 DMARC_MISSING             0.1 Missing DMARC policy
 KAM_DMARC_STATUS 0.01 Test Rule for DKIM or SPF Failure with Strict Alignment
 SPF_HELO_NONE           0.001 SPF: HELO does not publish an SPF Record
 SPF_PASS               -0.001 SPF: sender matches SPF record
Subject: [pbs-devel] [PATCH proxmox-backup v2 07/25] api2: removable
 datastore creation
X-BeenThere: pbs-devel@lists.proxmox.com
X-Mailman-Version: 2.1.29
Precedence: list
List-Id: Proxmox Backup Server development discussion
 <pbs-devel.lists.proxmox.com>
List-Unsubscribe: <https://lists.proxmox.com/cgi-bin/mailman/options/pbs-devel>, 
 <mailto:pbs-devel-request@lists.proxmox.com?subject=unsubscribe>
List-Archive: <http://lists.proxmox.com/pipermail/pbs-devel/>
List-Post: <mailto:pbs-devel@lists.proxmox.com>
List-Help: <mailto:pbs-devel-request@lists.proxmox.com?subject=help>
List-Subscribe: <https://lists.proxmox.com/cgi-bin/mailman/listinfo/pbs-devel>, 
 <mailto:pbs-devel-request@lists.proxmox.com?subject=subscribe>
X-List-Received-Date: Thu, 21 Sep 2023 12:52:46 -0000

Signed-off-by: Hannes Laimer <h.laimer@proxmox.com>
---
 src/api2/config/datastore.rs | 52 ++++++++++++++++++++++++++++++++++--
 1 file changed, 50 insertions(+), 2 deletions(-)

diff --git a/src/api2/config/datastore.rs b/src/api2/config/datastore.rs
index 5e013c39..a28c13db 100644
--- a/src/api2/config/datastore.rs
+++ b/src/api2/config/datastore.rs
@@ -8,7 +8,7 @@ use serde_json::Value;
 use proxmox_router::{http_bail, Permission, Router, RpcEnvironment, RpcEnvironmentType};
 use proxmox_schema::{api, param_bail, ApiType};
 use proxmox_section_config::SectionConfigData;
-use proxmox_sys::{task_warn, WorkerTaskContext};
+use proxmox_sys::{task_log, task_warn, WorkerTaskContext};
 
 use pbs_api_types::{
     Authid, DataStoreConfig, DataStoreConfigUpdater, DatastoreNotify, DatastoreTuning,
@@ -19,7 +19,8 @@ use pbs_config::BackupLockGuard;
 use pbs_datastore::chunk_store::ChunkStore;
 
 use crate::api2::admin::{
-    prune::list_prune_jobs, sync::list_sync_jobs, verify::list_verification_jobs,
+    datastore::do_mount_device, prune::list_prune_jobs, sync::list_sync_jobs,
+    verify::list_verification_jobs,
 };
 use crate::api2::config::prune::delete_prune_job;
 use crate::api2::config::sync::delete_sync_job;
@@ -71,6 +72,31 @@ pub(crate) fn do_create_datastore(
     datastore: DataStoreConfig,
     worker: Option<&dyn WorkerTaskContext>,
 ) -> Result<(), Error> {
+    if datastore.backing_device.is_some() {
+        let mut mount_point: PathBuf = PathBuf::from(&datastore.path);
+
+        let default_options = proxmox_sys::fs::CreateOptions::new();
+        proxmox_sys::fs::create_path(
+            &mount_point,
+            Some(default_options.clone()),
+            Some(default_options),
+        )?;
+        do_mount_device(None, config.clone(), datastore.clone(), worker)?;
+
+        mount_point.push(".chunks");
+        if mount_point.is_dir() {
+            config.set_data(&datastore.name, "datastore", &datastore)?;
+            pbs_config::datastore::save_config(&config)?;
+            if let Some(worker) = worker {
+                task_log!(
+                    worker,
+                    "created removable datastore, chunkstore already exists"
+                );
+                return Ok(());
+            }
+        }
+    }
+
     let path: PathBuf = datastore.path.clone().into();
 
     let tuning: DatastoreTuning = serde_json::from_value(
@@ -124,6 +150,28 @@ pub fn create_datastore(
         param_bail!("name", "datastore '{}' already exists.", config.name);
     }
 
+    if let Some(uuid) = &config.backing_device {
+        let already_used_by = section_config
+            .sections
+            .iter()
+            .flat_map(|(datastore_name, (_, config))| {
+                config
+                    .as_object()
+                    .and_then(|cfg| cfg.get("backing-device"))
+                    .and_then(|backing_device| backing_device.as_str())
+                    .filter(|&device_uuid| device_uuid == uuid)
+                    .map(|_| datastore_name)
+            })
+            .next();
+
+        if let Some(datastore_name) = already_used_by {
+            param_bail!(
+                "backing-device",
+                "device already in use by datastore '{datastore_name}'",
+            );
+        }
+    }
+
     let auth_id: Authid = rpcenv.get_auth_id().unwrap().parse()?;
     let to_stdout = rpcenv.env_type() == RpcEnvironmentType::CLI;
 
-- 
2.39.2