rafs: only decide whether to do digest validate based on configuration.

We found that when using the "nydus-image check --bootstrap /path/to/bootstrap"
command, it takes about 15s to check a 35MB bootstrap file (rafs v5) due to the
default digest validation. This is very slow and disabling it can reduce the time to 3s.

We should only allow this option to be configurable at runtime.

Signed-off-by: Yan Song <imeoer@linux.alibaba.com>

rafs/src/builder/core/bootstrap.rs

@@ -283,8 +283,7 @@ impl Bootstrap {
         blob_mgr: &mut BlobManager,
     ) -> Result<Tree> {
         let rs = if let Some(path) = bootstrap_mgr.f_parent_path.as_ref() {
-            RafsSuper::load_from_file(path, ctx.configuration.clone(), true, false)
-                .map(|(rs, _)| rs)?
+            RafsSuper::load_from_file(path, ctx.configuration.clone(), false).map(|(rs, _)| rs)?
         } else {
             return Err(Error::msg("bootstrap context's parent bootstrap is null"));
         };

rafs/src/builder/core/chunk_dict.rs

@@ -160,7 +160,7 @@ impl HashChunkDict {
         config: Arc<ConfigV2>,
         rafs_config: &RafsSuperConfig,
     ) -> Result<Self> {
-        let (rs, _) = RafsSuper::load_from_file(path, config, true, true)
+        let (rs, _) = RafsSuper::load_from_file(path, config, true)
             .with_context(|| format!("failed to open bootstrap file {:?}", path))?;
         let mut d = HashChunkDict {
             m: HashMap::new(),

rafs/src/fs.rs

@@ -84,7 +84,7 @@ impl Rafs {
 
         let cache_cfg = cfg.get_cache_config().map_err(RafsError::LoadConfig)?;
         let rafs_cfg = cfg.get_rafs_config().map_err(RafsError::LoadConfig)?;
-        let (sb, reader) = RafsSuper::load_from_file(path, cfg.clone(), false, false)
+        let (sb, reader) = RafsSuper::load_from_file(path, cfg.clone(), false)
             .map_err(RafsError::FillSuperblock)?;
         let blob_infos = sb.superblock.get_blob_infos();
         let device = BlobDevice::new(cfg, &blob_infos).map_err(RafsError::CreateDevice)?;

rafs/src/metadata/mod.rs

@@ -683,9 +683,13 @@ impl RafsSuper {
     pub fn load_from_file<P: AsRef<Path>>(
         path: P,
         config: Arc<ConfigV2>,
-        validate_digest: bool,
         is_chunk_dict: bool,
     ) -> Result<(Self, RafsIoReader)> {
+        let validate_digest = config
+            .rafs
+            .as_ref()
+            .map(|rafs| rafs.validate)
+            .unwrap_or_default();
         let mut rs = RafsSuper {
             mode: RafsMode::Direct,
             validate_digest,

service/src/blob_cache.rs

@@ -390,7 +390,7 @@ impl BlobCacheMgr {
         path: PathBuf,
         config: Arc<ConfigV2>,
     ) -> Result<()> {
-        let (rs, _) = RafsSuper::load_from_file(&path, config.clone(), true, false)?;
+        let (rs, _) = RafsSuper::load_from_file(&path, config.clone(), false)?;
         if rs.meta.is_v5() {
             return Err(einval!("blob_cache: RAFSv5 image is not supported"));
         }

src/bin/nydus-image/inspect.rs

@@ -40,7 +40,7 @@ impl RafsInspector {
         request_mode: bool,
         config: Arc<ConfigV2>,
     ) -> Result<Self, anyhow::Error> {
-        let (rafs_meta, f) = RafsSuper::load_from_file(bootstrap_path, config, false, false)?;
+        let (rafs_meta, f) = RafsSuper::load_from_file(bootstrap_path, config, false)?;
         let root_ino = rafs_meta.superblock.root_ino();
 
         Ok(RafsInspector {

src/bin/nydus-image/main.rs

@@ -1028,7 +1028,7 @@ impl Command {
             Some(s) => PathBuf::from(s),
         };
 
-        let (rs, _) = RafsSuper::load_from_file(&bootstrap_path, config.clone(), true, false)?;
+        let (rs, _) = RafsSuper::load_from_file(&bootstrap_path, config.clone(), false)?;
         info!("load bootstrap {:?} successfully", bootstrap_path);
         let chunk_dict = match matches.get_one::<String>("chunk-dict") {
             None => None,

src/bin/nydus-image/merge.rs

@@ -111,7 +111,7 @@ impl Merger {
         let mut parent_layers = 0;
         if let Some(parent_bootstrap_path) = &parent_bootstrap_path {
             let (rs, _) =
-                RafsSuper::load_from_file(parent_bootstrap_path, config_v2.clone(), false, false)
+                RafsSuper::load_from_file(parent_bootstrap_path, config_v2.clone(), false)
                     .context(format!("load parent bootstrap {:?}", parent_bootstrap_path))?;
             tree = Some(Tree::from_bootstrap(&rs, &mut ())?);
             let blobs = rs.superblock.get_blob_infos();
@@ -127,9 +127,8 @@ impl Merger {
         let mut chunk_dict_blobs = HashSet::new();
         let mut config = None;
         if let Some(chunk_dict_path) = &chunk_dict {
-            let (rs, _) =
-                RafsSuper::load_from_file(chunk_dict_path, config_v2.clone(), true, false)
-                    .context(format!("load chunk dict bootstrap {:?}", chunk_dict_path))?;
+            let (rs, _) = RafsSuper::load_from_file(chunk_dict_path, config_v2.clone(), false)
+                .context(format!("load chunk dict bootstrap {:?}", chunk_dict_path))?;
             config = Some(rs.meta.get_config());
             for blob in rs.superblock.get_blob_infos() {
                 chunk_dict_blobs.insert(blob.blob_id().to_string());
@@ -140,7 +139,7 @@ impl Merger {
         let mut chunk_size = None;
 
         for (layer_idx, bootstrap_path) in sources.iter().enumerate() {
-            let (rs, _) = RafsSuper::load_from_file(bootstrap_path, config_v2.clone(), true, false)
+            let (rs, _) = RafsSuper::load_from_file(bootstrap_path, config_v2.clone(), false)
                 .context(format!("load bootstrap {:?}", bootstrap_path))?;
             config
                 .get_or_insert_with(|| rs.meta.get_config())

src/bin/nydus-image/stat.rs

@@ -159,7 +159,7 @@ impl ImageStat {
     }
 
     pub fn stat(&mut self, path: &Path, is_base: bool, config: Arc<ConfigV2>) -> Result<()> {
-        let (rs, _) = RafsSuper::load_from_file(path, config, false, false)?;
+        let (rs, _) = RafsSuper::load_from_file(path, config, false)?;
         let mut dict = HashChunkDict::new(rs.meta.get_digester());
         let mut hardlinks = HashSet::new();
         let tree =

src/bin/nydus-image/unpack/mod.rs

@@ -60,12 +60,7 @@ impl OCIUnpacker {
     }
 
     fn load_rafs(&self, config: Arc<ConfigV2>) -> Result<RafsSuper> {
-        let (rs, _) = RafsSuper::load_from_file(
-            self.bootstrap.as_path(),
-            config.clone(),
-            config.is_chunk_validation_enabled(),
-            false,
-        )?;
+        let (rs, _) = RafsSuper::load_from_file(self.bootstrap.as_path(), config, false)?;
         Ok(rs)
     }
 }

src/bin/nydus-image/validator.rs

@@ -19,7 +19,7 @@ pub struct Validator {
 
 impl Validator {
     pub fn new(bootstrap_path: &Path, config: Arc<ConfigV2>) -> Result<Self> {
-        let (sb, _) = RafsSuper::load_from_file(bootstrap_path, config, true, false)?;
+        let (sb, _) = RafsSuper::load_from_file(bootstrap_path, config, false)?;
 
         Ok(Self { sb })
     }