Fix the kernel headers enabling

compute/vm-image-spec-bookworm.yaml

@@ -39,13 +39,17 @@ commands:
     user: nobody
     sysvInitAction: respawn
     shell: '/bin/sql_exporter -config.file=/etc/sql_exporter_autoscaling.yml -web.listen-address=:9499'
-  - name: symlink-kernel-modules
+  - name: enable-kernel-modules
     user: root
-    sysvInitAction: respawn
-    shell: |
-      mkdir -p /lib/modules
-      ln -s /neonvm/tools/lib/modules /lib/modules
-      export PATH="/neonvm/tools/bin:$PATH"
+    sysvInitAction: sysinit
+    # Symlinking is impossible due to the files being mounted from
+    # iso9660, and many tools require mmaping the files, and iso9660
+    # doesn't support that. So we copy the files instead.
+    shell: mkdir -p /lib/modules && cp /neonvm/tools/lib/modules/* /lib/modules -R
+  - name: enable-bpfs
+    user: root
+    sysvInitAction: sysinit
+    shell: mkdir -p /sys/kernel/debug && mount -t debugfs debugfs /sys/kernel/debug && mount -t bpf bpf /sys/fs/bpf && chmod 755 /sys/fs/bpf
   # Rsyslog by default creates a unix socket under /dev/log . That's where Postgres sends logs also.
   # We run syslog with postgres user so it can't create /dev/log. Instead we configure rsyslog to
   # use a different path for the socket. The symlink actually points to our custom path.

compute/vm-image-spec-bullseye.yaml

@@ -39,12 +39,17 @@ commands:
     user: nobody
     sysvInitAction: respawn
     shell: '/bin/sql_exporter -config.file=/etc/sql_exporter_autoscaling.yml -web.listen-address=:9499'
-  - name: symlink-kernel-modules
+  - name: enable-kernel-modules
     user: root
     sysvInitAction: sysinit
-    shell: |
-      mkdir -p /lib/modules
-      ln -s /neonvm/tools/lib/modules /lib/modules
+    # Symlinking is impossible due to the files being mounted from
+    # iso9660, and many tools require mmaping the files, and iso9660
+    # doesn't support that. So we copy the files instead.
+    shell: mkdir -p /lib/modules && cp /neonvm/tools/lib/modules/* /lib/modules -R
+  - name: enable-bpfs
+    user: root
+    sysvInitAction: sysinit
+    shell: mkdir -p /sys/kernel/debug && mount -t debugfs debugfs /sys/kernel/debug && mount -t bpf bpf /sys/fs/bpf && chmod 755 /sys/fs/bpf
   # Rsyslog by default creates a unix socket under /dev/log . That's where Postgres sends logs also.
   # We run syslog with postgres user so it can't create /dev/log. Instead we configure rsyslog to
   # use a different path for the socket. The symlink actually points to our custom path.

compute_tools/src/profiling/mod.rs

@@ -327,7 +327,7 @@ fn get_override_path_env() -> String {
 ///
 /// The generator tools have the path to the binary
 /// that will be used to generate the profile.
-/// If the path is `None`, the tool will be searched
+/// If the path is [`None`], the tool will be searched
 /// in the system's `PATH` using the default name.
 #[derive(Debug, Clone, PartialEq, Eq, Serialize, Deserialize)]
 pub enum ProfileGenerator {