Merge pull request #163 from Burning1020/fix-image

task: ignore not exist kernel param

vmm/scripts/image/build_image.sh

@@ -339,7 +339,7 @@ create_disk() {
 	# The partition is the rootfs content
 	info "Creating partitions"
 	parted -s -a optimal "${image}" -- \
-		   mklabel msdos \
+		   mklabel gpt \
 		   mkpart primary "${fs_type}" "${part_start}"M "${rootfs_end}"M
 
 	OK "Partitions created"

vmm/task/src/main.rs

@@ -314,7 +314,7 @@ lazy_static! {
         // allocate more memory than is physically available
         map.insert("/proc/sys/vm/overcommit_memory", "1");
 
-        // Enable automatic expiration of nodest connections
+        // Enable automatic expiration of nodest connections in IPVS
         map.insert("/proc/sys/net/ipv4/vs/expire_nodest_conn", "1");
         map
     };
@@ -329,9 +329,12 @@ async fn init_vm_rootfs() -> Result<()> {
 
     // Set default sysctl
     for sysctl in DEFAULT_SYSCTL.iter() {
+        if !Path::new(&sysctl.0).exists() {
+            continue;
+        }
         tokio::fs::write(&sysctl.0, &sysctl.1)
             .await
-            .map_err(io_error!(e, "failed to set cgroup hierarchy to 1"))?;
+            .map_err(io_error!(e, "failed to write kernel parameter "))?;
     }
 
     Ok(())