[pbs-devel] [PATCH proxmox-backup] add datastore info api call

[Oguz Bektas <o.bektas@proxmox.com>]

to be able to copy/paste easily when adding a new PBS datastore remote
in PVE

Signed-off-by: Oguz Bektas <o.bektas@proxmox.com>
---
 src/api2/admin/datastore.rs | 55 +++++++++++++++++++++++++++++++++++++
 src/api2/types/mod.rs       | 23 ++++++++++++++++
 2 files changed, 78 insertions(+)

diff --git a/src/api2/admin/datastore.rs b/src/api2/admin/datastore.rs
index 91ca3570..41059f98 100644
--- a/src/api2/admin/datastore.rs
+++ b/src/api2/admin/datastore.rs
@@ -25,6 +25,7 @@ use pxar::EntryKind;
 
 use crate::api2::types::*;
 use crate::api2::node::rrd::create_value_from_rrd;
+use crate::config::network::{self};
 use crate::backup::*;
 use crate::config::datastore;
 use crate::config::cached_user_info::CachedUserInfo;
@@ -36,6 +37,7 @@ use crate::tools::{
     AsyncChannelWriter, AsyncReaderStream, WrappedReaderStream,
 };
 
+use crate::tools::cert::CertInfo;
 use crate::config::acl::{
     PRIV_DATASTORE_AUDIT,
     PRIV_DATASTORE_MODIFY,
@@ -448,6 +450,54 @@ pub fn status(
     crate::tools::disks::disk_usage(&datastore.base_path())
 }
 
+#[api(
+    input: {
+        properties: {
+            store: {
+                schema: DATASTORE_SCHEMA,
+            },
+        },
+    },
+    returns: {
+        type: DataStoreInfo,
+    },
+    access: {
+        permission: &Permission::Privilege(&["datastore", "{store}"], PRIV_DATASTORE_READ, true),
+    },
+)]
+/// Get information about the datastore.
+///
+/// Provides PBS node fingerprint, address and datastore name
+pub fn info(
+    store: String,
+    _info: &ApiMethod,
+    _rpcenv: &mut dyn RpcEnvironment,
+) -> Result<DataStoreInfo, Error> {
+    let _datastore = DataStore::lookup_datastore(&store)?;
+    let cert = CertInfo::new()?;
+    let fingerprint = cert.fingerprint()?;
+
+    // get all possible interface IP addresses since there's
+    // no explicit way to tell which is needed
+    let (config, _) = network::config()?;
+    let mut address_list = Vec::new();
+    for (_ , interface) in config.interfaces.iter() {
+        if let Some(cidr) = &interface.cidr {
+            address_list.push(cidr.to_owned());
+        }
+    }
+
+    let result_item = DataStoreInfo {
+        name: store,
+        address_list,
+        fingerprint,
+    };
+
+    Ok(result_item)
+}
+
+
+
 #[api(
     input: {
         properties: {
@@ -1673,6 +1723,11 @@ const DATASTORE_INFO_SUBDIRS: SubdirMap = &[
         &Router::new()
             .get(&API_METHOD_LIST_GROUPS)
     ),
+    (
+        "info",
+        &Router::new()
+            .get(&API_METHOD_INFO)
+    ),
     (
         "notes",
         &Router::new()
diff --git a/src/api2/types/mod.rs b/src/api2/types/mod.rs
index f97db557..9e61f15c 100644
--- a/src/api2/types/mod.rs
+++ b/src/api2/types/mod.rs
@@ -1070,3 +1070,26 @@ pub struct APTUpdateInfo {
     /// URL under which the package's changelog can be retrieved
     pub change_log_url: String,
 }
+
+#[api(
+    properties: {
+        "address-list": {
+            description: "List of IPs from node",
+            type: Array,
+            items: {
+                description: "CIDR",
+                type: String,
+            },
+        },
+})]
+#[derive(Serialize, Deserialize)]
+#[serde(rename_all = "kebab-case")]
+/// Necessary information for adding a remote
+pub struct DataStoreInfo {
+    /// Name of the datastore
+    pub name: String,
+    /// Available IP addresses from the node
+    pub address_list: Vec<String>,
+    /// x509 fingerprint of the node
+    pub fingerprint: String,
+}
-- 
2.20.1