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Diffstat (limited to 'fst')
-rw-r--r--fst/config.go14
1 files changed, 12 insertions, 2 deletions
diff --git a/fst/config.go b/fst/config.go
index d7d31451..73809a86 100644
--- a/fst/config.go
+++ b/fst/config.go
@@ -70,6 +70,8 @@ type SandboxConfig struct {
Filesystem []*FilesystemConfig `json:"filesystem"`
// symlinks created inside the sandbox
Link [][2]string `json:"symlink"`
+ // read-only /etc directory
+ Etc string `json:"etc,omitempty"`
// automatically set up /etc symlinks
AutoEtc bool `json:"auto_etc"`
// paths to override by mounting tmpfs over them
@@ -127,7 +129,11 @@ func (s *SandboxConfig) Bwrap(os linux.System) (*bwrap.Config, error) {
}
if !s.AutoEtc {
- conf.Dir("/etc")
+ if s.Etc == "" {
+ conf.Dir("/etc")
+ } else {
+ conf.Bind(s.Etc, "/etc")
+ }
}
for _, c := range s.Filesystem {
@@ -147,7 +153,11 @@ func (s *SandboxConfig) Bwrap(os linux.System) (*bwrap.Config, error) {
}
if s.AutoEtc {
- conf.Bind("/etc", Tmp+"/etc")
+ if s.Etc == "" {
+ conf.Bind("/etc", Tmp+"/etc")
+ } else {
+ conf.Bind(s.Etc, Tmp+"/etc")
+ }
// link host /etc contents to prevent passwd/group from being overwritten
if d, err := os.ReadDir("/etc"); err != nil {