[pbs-devel] [RFC proxmox-backup 2/8] config: implement sanity check job configuration

[Christian Ebner <c.ebner@proxmox.com>]

Implements the required methods and defines the location for storing
sanity check jobs configurations.

Signed-off-by: Christian Ebner <c.ebner@proxmox.com>
---
 pbs-config/src/lib.rs          |  1 +
 pbs-config/src/sanity_check.rs | 57 ++++++++++++++++++++++++++++++++++
 2 files changed, 58 insertions(+)
 create mode 100644 pbs-config/src/sanity_check.rs

diff --git a/pbs-config/src/lib.rs b/pbs-config/src/lib.rs
index 009c4d3c..dad9225e 100644
--- a/pbs-config/src/lib.rs
+++ b/pbs-config/src/lib.rs
@@ -9,6 +9,7 @@ pub mod metrics;
 pub mod network;
 pub mod prune;
 pub mod remote;
+pub mod sanity_check;
 pub mod sync;
 pub mod tape_job;
 pub mod token_shadow;
diff --git a/pbs-config/src/sanity_check.rs b/pbs-config/src/sanity_check.rs
new file mode 100644
index 00000000..e875733b
--- /dev/null
+++ b/pbs-config/src/sanity_check.rs
@@ -0,0 +1,57 @@
+use std::collections::HashMap;
+
+use anyhow::Error;
+use lazy_static::lazy_static;
+
+use proxmox_schema::*;
+use proxmox_section_config::{SectionConfig, SectionConfigData, SectionConfigPlugin};
+
+use pbs_api_types::{SanityCheckJobConfig, JOB_ID_SCHEMA};
+
+use crate::{open_backup_lockfile, replace_backup_config, BackupLockGuard};
+
+lazy_static! {
+    pub static ref CONFIG: SectionConfig = init();
+}
+
+fn init() -> SectionConfig {
+    const OBJ_SCHEMA: &AllOfSchema = SanityCheckJobConfig::API_SCHEMA.unwrap_all_of_schema();
+
+    let plugin =
+        SectionConfigPlugin::new("sanity-check".to_string(), Some(String::from("id")), OBJ_SCHEMA);
+    let mut config = SectionConfig::new(&JOB_ID_SCHEMA);
+    config.register_plugin(plugin);
+
+    config
+}
+
+pub const SANITY_CHECK_CFG_FILENAME: &str = "/etc/proxmox-backup/sanity-check.cfg";
+pub const SANITY_CHECK_CFG_LOCKFILE: &str = "/etc/proxmox-backup/.sanity-check.lck";
+
+/// Get exclusive lock
+pub fn lock_config() -> Result<BackupLockGuard, Error> {
+    open_backup_lockfile(SANITY_CHECK_CFG_LOCKFILE, None, true)
+}
+
+pub fn config() -> Result<(SectionConfigData, [u8; 32]), Error> {
+    let content = proxmox_sys::fs::file_read_optional_string(SANITY_CHECK_CFG_FILENAME)?;
+    let content = content.unwrap_or_default();
+
+    let digest = openssl::sha::sha256(content.as_bytes());
+    let data = CONFIG.parse(SANITY_CHECK_CFG_FILENAME, &content)?;
+
+    Ok((data, digest))
+}
+
+pub fn save_config(config: &SectionConfigData) -> Result<(), Error> {
+    let raw = CONFIG.write(SANITY_CHECK_CFG_FILENAME, config)?;
+    replace_backup_config(SANITY_CHECK_CFG_FILENAME, raw.as_bytes())
+}
+
+// shell completion helper
+pub fn complete_sanity_check_job_id(_arg: &str, _param: &HashMap<String, String>) -> Vec<String> {
+    match config() {
+        Ok((data, _digest)) => data.sections.keys().map(|id| id.to_string()).collect(),
+        Err(_) => Vec::new(),
+    }
+}
-- 
2.39.2