[pbs-devel] [PATCH proxmox-backup] fix #5801: backup_manager: make api call on datastore update

[Gabriel Goller <g.goller@proxmox.com>]

When updating the datastore config using `proxmox-backup-manager` we
need to make an api-call, because the api-route starts a tokio task to
update the proxy-cache and the client will kill the task if we don't
wait. With an api-call the tokio task will be executed on the api
process and runs in the background while the endpoint handler has
already returned.

Signed-off-by: Gabriel Goller <g.goller@proxmox.com>
---

Note: this is not so nice, ideally we would like to call every endpoint
handler directly, but I'm afraid we don't have another choice here.

 src/bin/proxmox_backup_manager/datastore.rs | 63 ++++++++++++++++++---
 1 file changed, 56 insertions(+), 7 deletions(-)

diff --git a/src/bin/proxmox_backup_manager/datastore.rs b/src/bin/proxmox_backup_manager/datastore.rs
index 383bcd242955..3a349451f62a 100644
--- a/src/bin/proxmox_backup_manager/datastore.rs
+++ b/src/bin/proxmox_backup_manager/datastore.rs
@@ -1,15 +1,17 @@
-use anyhow::Error;
-use serde_json::Value;
-
+use pbs_api_types::{
+    DataStoreConfig, DataStoreConfigUpdater, DATASTORE_SCHEMA, PROXMOX_CONFIG_DIGEST_SCHEMA,
+};
+use pbs_client::view_task_result;
 use proxmox_router::{cli::*, ApiHandler, RpcEnvironment};
 use proxmox_schema::api;
 
-use pbs_api_types::{DataStoreConfig, DATASTORE_SCHEMA, PROXMOX_CONFIG_DIGEST_SCHEMA};
-use pbs_client::view_task_result;
-
 use proxmox_backup::api2;
+use proxmox_backup::api2::config::datastore::DeletableProperty;
 use proxmox_backup::client_helpers::connect_to_localhost;
 
+use anyhow::Error;
+use serde_json::Value;
+
 #[api(
     input: {
         properties: {
@@ -139,6 +141,53 @@ async fn delete_datastore(mut param: Value, rpcenv: &mut dyn RpcEnvironment) ->
     Ok(())
 }
 
+#[api(
+    protected: true,
+    input: {
+        properties: {
+            name: {
+                schema: DATASTORE_SCHEMA,
+            },
+            update: {
+                type: DataStoreConfigUpdater,
+                flatten: true,
+            },
+            delete: {
+                description: "List of properties to delete.",
+                type: Array,
+                optional: true,
+                items: {
+                    type: DeletableProperty,
+                }
+            },
+            digest: {
+                optional: true,
+                schema: PROXMOX_CONFIG_DIGEST_SCHEMA,
+            },
+            "output-format": {
+                schema: OUTPUT_FORMAT,
+                optional: true,
+            },
+        },
+    },
+)]
+/// Update datastore configuration.
+async fn update_datastore(name: String, mut param: Value) -> Result<(), Error> {
+    let output_format = extract_output_format(&mut param);
+    let client = connect_to_localhost()?;
+
+    let result = client
+        .put(
+            format!("api2/json/config/datastore/{name}").as_str(),
+            Some(param),
+        )
+        .await?;
+
+    view_task_result(&client, result, &output_format).await?;
+
+    Ok(())
+}
+
 pub fn datastore_commands() -> CommandLineInterface {
     let cmd_def = CliCommandMap::new()
         .insert("list", CliCommand::new(&API_METHOD_LIST_DATASTORES))
@@ -154,7 +203,7 @@ pub fn datastore_commands() -> CommandLineInterface {
         )
         .insert(
             "update",
-            CliCommand::new(&api2::config::datastore::API_METHOD_UPDATE_DATASTORE)
+            CliCommand::new(&API_METHOD_UPDATE_DATASTORE)
                 .arg_param(&["name"])
                 .completion_cb("name", pbs_config::datastore::complete_datastore_name)
                 .completion_cb(
-- 
2.39.5



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