hst/config: remove container etc field

This no longer needs special treatment since it can be specified as a generic filesystem entry.

Signed-off-by: Ophestra <cat@gensokyo.uk>

internal/app/seal_linux.go

@@ -242,7 +242,6 @@ func (seal *outcome) finalise(ctx context.Context, sys sys.State, config *hst.Co
 			HostNet:      true,
 			HostAbstract: true,
 			Tty:          true,
-			AutoEtc:      true,
 
 			Filesystem: []hst.FilesystemConfigJSON{
 				{&hst.FSBind{
@@ -267,6 +266,15 @@ func (seal *outcome) finalise(ctx context.Context, sys sys.State, config *hst.Co
 			conf.Filesystem = append(conf.Filesystem, hst.FilesystemConfigJSON{FilesystemConfig: &hst.FSEphemeral{Target: nscd}})
 		}
 
+		// do autoetc last
+		conf.Filesystem = append(conf.Filesystem,
+			hst.FilesystemConfigJSON{FilesystemConfig: &hst.FSBind{
+				Target:  container.AbsFHSEtc,
+				Source:  container.AbsFHSEtc,
+				Special: true,
+			}},
+		)
+
 		config.Container = conf
 	}