Add some automatic backups of postgresql databases

when using zfs volume

rust/program/zpool-setup/src/main.rs

@@ -1,6 +1,8 @@
 use serde::Deserialize;
 use std::{
     collections::{BTreeMap, HashMap},
+    ffi::OsStr,
+    os::unix::ffi::OsStrExt,
     path::{Path, PathBuf},
 };
 
@@ -151,13 +153,13 @@ struct ZpoolStatusPool {
     vdevs: HashMap<String, ZpoolStatusVdev>,
 }
 
-#[derive(Clone, Copy, Deserialize, PartialEq)]
+#[derive(Clone, Copy, Debug, Deserialize, PartialEq)]
 enum ZpoolState {
     #[serde(rename = "ONLINE")]
     Online,
 }
 
-#[derive(Deserialize)]
+#[derive(Deserialize, Debug)]
 #[serde(tag = "vdev_type")]
 enum ZpoolStatusVdev {
     #[serde(rename = "root")]
@@ -177,11 +179,22 @@ impl ZpoolStatusVdev {
         }
     }
     pub fn is_vdev_for_disk(&self, disk_path: &Path) -> bool {
-        matches!(self, Self::Disk(disk) if disk.path == disk_path)
+        // Zpool status returns the partition 1 as the path to the device, even if zfs was given the entire disk to work with during pool creation
+        // Depending on whether we use a device like /dev/vdb or /dev/disk/by-id/XXXX this will be reported as /dev/vdb1 or /dev/disk/by-id/XXXX-part1
+        matches!(self, Self::Disk(disk) if strip_path_inline_suffix(&disk.path, OsStr::from_bytes(b"-part1")) == disk_path || strip_path_inline_suffix(&disk.path, OsStr::from_bytes(b"1")) == disk_path)
     }
 }
 
-#[derive(Deserialize)]
+fn strip_path_inline_suffix<'a>(path: &'a Path, suffix: &OsStr) -> &'a Path {
+    Path::new(OsStr::from_bytes(
+        path.as_os_str()
+            .as_encoded_bytes()
+            .strip_suffix(suffix.as_encoded_bytes())
+            .unwrap_or(path.as_os_str().as_encoded_bytes()),
+    ))
+}
+
+#[derive(Deserialize, Debug)]
 struct ZpoolStatusVdevRoot {
     #[allow(dead_code)]
     name: String,
@@ -190,7 +203,7 @@ struct ZpoolStatusVdevRoot {
     vdevs: HashMap<String, ZpoolStatusVdev>,
 }
 
-#[derive(Deserialize)]
+#[derive(Deserialize, Debug)]
 struct ZpoolStatusVdevDisk {
     #[allow(dead_code)]
     name: String,
@@ -199,7 +212,7 @@ struct ZpoolStatusVdevDisk {
     path: PathBuf,
 }
 
-#[derive(Deserialize)]
+#[derive(Deserialize, Debug)]
 struct ZpoolStatusVdevMirror {
     #[allow(dead_code)]
     name: String,