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authorGiuseppe Scrivano <gscrivan@redhat.com>2018-08-22 17:45:44 +0200
committerAtomic Bot <atomic-devel@projectatomic.io>2018-08-27 13:26:28 +0000
commit663ee91eec01706008046c1df2c307716f9288db (patch)
treef789c4e681e51c74a29b9c71df8db73806f7f751 /pkg
parent90e93e66b0906e59efe3025d801a0e122bd4c42e (diff)
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Fix Mount Propagation
Default mount propagation inside of containes should be private Signed-off-by: Daniel J Walsh <dwalsh@redhat.com> Closes: #1305 Approved by: mheon
Diffstat (limited to 'pkg')
-rw-r--r--pkg/secrets/secrets.go4
-rw-r--r--pkg/spec/createconfig.go4
-rw-r--r--pkg/spec/spec.go20
3 files changed, 10 insertions, 18 deletions
diff --git a/pkg/secrets/secrets.go b/pkg/secrets/secrets.go
index 6f38f1fd5..be5642eba 100644
--- a/pkg/secrets/secrets.go
+++ b/pkg/secrets/secrets.go
@@ -243,7 +243,7 @@ func addSecretsFromMountsFile(filePath, mountLabel, containerWorkingDir, mountPr
Source: filepath.Join(mountPrefix, ctrDir),
Destination: ctrDir,
Type: "bind",
- Options: []string{"bind"},
+ Options: []string{"bind", "private"},
}
mounts = append(mounts, m)
@@ -278,7 +278,7 @@ func addFIPSModeSecret(mounts *[]rspec.Mount, containerWorkingDir string) error
Source: ctrDirOnHost,
Destination: secretsDir,
Type: "bind",
- Options: []string{"bind"},
+ Options: []string{"bind", "private"},
}
*mounts = append(*mounts, m)
}
diff --git a/pkg/spec/createconfig.go b/pkg/spec/createconfig.go
index 41030bf26..c7eaeb9f7 100644
--- a/pkg/spec/createconfig.go
+++ b/pkg/spec/createconfig.go
@@ -214,7 +214,7 @@ func (c *CreateConfig) GetVolumeMounts(specMounts []spec.Mount) ([]spec.Mount, e
Destination: vol,
Type: string(TypeTmpfs),
Source: string(TypeTmpfs),
- Options: []string{"rw", "noexec", "nosuid", "nodev", "tmpcopyup"},
+ Options: []string{"private", "rw", "noexec", "nosuid", "nodev", "tmpcopyup"},
}
m = append(m, mount)
}
@@ -272,7 +272,7 @@ func (c *CreateConfig) GetTmpfsMounts() []spec.Mount {
var m []spec.Mount
for _, i := range c.Tmpfs {
// Default options if nothing passed
- options := []string{"rw", "noexec", "nosuid", "nodev", "size=65536k"}
+ options := []string{"private", "rw", "noexec", "nosuid", "nodev", "size=65536k"}
spliti := strings.Split(i, ":")
destPath := spliti[0]
if len(spliti) > 1 {
diff --git a/pkg/spec/spec.go b/pkg/spec/spec.go
index 255b70045..a915c305f 100644
--- a/pkg/spec/spec.go
+++ b/pkg/spec/spec.go
@@ -41,7 +41,7 @@ func CreateConfigToOCISpec(config *CreateConfig) (*spec.Spec, error) { //nolint
Destination: "/sys",
Type: "sysfs",
Source: "sysfs",
- Options: []string{"nosuid", "noexec", "nodev", "rw"},
+ Options: []string{"private", "nosuid", "noexec", "nodev", "rw"},
}
g.AddMount(sysMnt)
} else if !canMountSys {
@@ -65,7 +65,7 @@ func CreateConfigToOCISpec(config *CreateConfig) (*spec.Spec, error) { //nolint
Destination: "/dev/pts",
Type: "devpts",
Source: "devpts",
- Options: []string{"nosuid", "noexec", "newinstance", "ptmxmode=0666", "mode=0620"},
+ Options: []string{"private", "nosuid", "noexec", "newinstance", "ptmxmode=0666", "mode=0620"},
}
g.AddMount(devPts)
}
@@ -95,7 +95,7 @@ func CreateConfigToOCISpec(config *CreateConfig) (*spec.Spec, error) { //nolint
Destination: "/sys/fs/cgroup",
Type: "cgroup",
Source: "cgroup",
- Options: []string{"nosuid", "noexec", "nodev", "relatime", cgroupPerm},
+ Options: []string{"private", "nosuid", "noexec", "nodev", "relatime", cgroupPerm},
}
g.AddMount(cgroupMnt)
}
@@ -223,7 +223,7 @@ func CreateConfigToOCISpec(config *CreateConfig) (*spec.Spec, error) { //nolint
for _, i := range config.Tmpfs {
// Default options if nothing passed
- options := []string{"rw", "noexec", "nosuid", "nodev", "size=65536k"}
+ options := []string{"rw", "private", "noexec", "nosuid", "nodev", "size=65536k"}
spliti := strings.SplitN(i, ":", 2)
if len(spliti) > 1 {
if _, _, err := mount.ParseTmpfsOptions(spliti[1]); err != nil {
@@ -303,17 +303,9 @@ func CreateConfigToOCISpec(config *CreateConfig) (*spec.Spec, error) { //nolint
return nil, errors.Wrapf(err, "error getting volume mounts")
}
configSpec.Mounts = append(configSpec.Mounts, mounts...)
- for _, mount := range configSpec.Mounts {
- for _, opt := range mount.Options {
- switch opt {
- case "private", "rprivate", "slave", "rslave", "shared", "rshared":
- if err := g.SetLinuxRootPropagation(opt); err != nil {
- return nil, errors.Wrapf(err, "error setting root propagation for %q", mount.Destination)
- }
- }
- }
+ if err := g.SetLinuxRootPropagation("shared"); err != nil {
+ return nil, errors.Wrapf(err, "failed to set propagation to rslave")
}
-
if canAddResources {
// BLOCK IO
blkio, err := config.CreateBlockIO()