From a1aba364d621e9f72095f705fdaabd37751c7a2f Mon Sep 17 00:00:00 2001
From: Alex Zenla <alex@mycelium.engineering>
Date: Thu, 8 Feb 2024 07:26:01 +0000
Subject: [PATCH] init: write 1.1.1.1 to resolv.conf if /etc exists

---
 container/src/init.rs | 11 ++++++++++-
 1 file changed, 10 insertions(+), 1 deletion(-)

diff --git a/container/src/init.rs b/container/src/init.rs
index c0712e9..c2677fe 100644
--- a/container/src/init.rs
+++ b/container/src/init.rs
@@ -13,8 +13,9 @@ use std::net::Ipv4Addr;
 use std::os::fd::AsRawFd;
 use std::os::linux::fs::MetadataExt;
 use std::os::unix::fs::{chroot, PermissionsExt};
-use std::path::Path;
+use std::path::{Path, PathBuf};
 use std::ptr::addr_of_mut;
+use std::str::FromStr;
 use std::thread::sleep;
 use std::time::Duration;
 use sys_mount::{FilesystemType, Mount, MountFlags};
@@ -324,6 +325,14 @@ impl ContainerInit {
         } else {
             warn!("unable to find link named {}", network.link);
         }
+
+        let etc = PathBuf::from_str("/etc")?;
+        if !etc.exists() {
+            fs::create_dir(etc)?;
+        }
+        let resolv = PathBuf::from_str("/etc/resolv.conf")?;
+        fs::write(resolv, "nameserver 1.1.1.1\n")?;
+
         Ok(())
     }