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@ -1 +1 @@
427bc708dc556bf5be50eac881a7914ae81260cc SOURCES/buildah-1.37.5-5fd40b9.tar.gz
80d289a0e9aaf8feb827df7aec25897ffec47bdc SOURCES/release-1.11-rhel-9a4764a.tar.gz

2
.gitignore vendored

@ -1 +1 @@
SOURCES/buildah-1.37.5-5fd40b9.tar.gz
SOURCES/release-1.11-rhel-9a4764a.tar.gz

@ -0,0 +1,153 @@
From f09346578021c12069b6deb9487a1462b8d28a83 Mon Sep 17 00:00:00 2001
From: Nalin Dahyabhai <nalin@redhat.com>
Date: Thu, 21 Nov 2019 15:32:41 -0500
Subject: [PATCH 1/3] bind: don't complain about missing mountpoints
When we go to unmount a tree of mounts, if one of the directories isn't
there, instead of returning an error as before, log a debug message and
keep going.
Signed-off-by: Nalin Dahyabhai <nalin@redhat.com>
---
bind/mount.go | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/bind/mount.go b/bind/mount.go
index e1ae323b9f..adde901fd1 100644
--- a/bind/mount.go
+++ b/bind/mount.go
@@ -264,6 +264,10 @@ func UnmountMountpoints(mountpoint string, mountpointsToRemove []string) error {
mount := getMountByID(id)
// check if this mountpoint is mounted
if err := unix.Lstat(mount.Mountpoint, &st); err != nil {
+ if os.IsNotExist(err) {
+ logrus.Debugf("mountpoint %q is not present(?), skipping", mount.Mountpoint)
+ continue
+ }
return errors.Wrapf(err, "error checking if %q is mounted", mount.Mountpoint)
}
if mount.Major != int(unix.Major(st.Dev)) || mount.Minor != int(unix.Minor(st.Dev)) {
From c5fb681a6082b78c422eb3531667dc6d607a9355 Mon Sep 17 00:00:00 2001
From: Nalin Dahyabhai <nalin@redhat.com>
Date: Fri, 22 Nov 2019 14:22:26 -0500
Subject: [PATCH 2/3] chroot: Unmount with MNT_DETACH instead of
UnmountMountpoints()
Unmounting the rootfs with MNT_DETACH should unmount everything below
it, so we don't need to use the more exhaustive method that our bind
package uses for its bind mounts.
Signed-off-by: Nalin Dahyabhai <nalin@redhat.com>
---
chroot/run.go | 25 +++++++++++++++----------
1 file changed, 15 insertions(+), 10 deletions(-)
diff --git a/chroot/run.go b/chroot/run.go
index fbccbcdb0d..76ac78d1ff 100644
--- a/chroot/run.go
+++ b/chroot/run.go
@@ -15,6 +15,7 @@ import (
"strings"
"sync"
"syscall"
+ "time"
"unsafe"
"github.com/containers/buildah/bind"
@@ -1002,12 +1003,19 @@ func isDevNull(dev os.FileInfo) bool {
// callback that will clean up its work.
func setupChrootBindMounts(spec *specs.Spec, bundlePath string) (undoBinds func() error, err error) {
var fs unix.Statfs_t
- removes := []string{}
undoBinds = func() error {
- if err2 := bind.UnmountMountpoints(spec.Root.Path, removes); err2 != nil {
- logrus.Warnf("pkg/chroot: error unmounting %q: %v", spec.Root.Path, err2)
- if err == nil {
- err = err2
+ if err2 := unix.Unmount(spec.Root.Path, unix.MNT_DETACH); err2 != nil {
+ retries := 0
+ for (err2 == unix.EBUSY || err2 == unix.EAGAIN) && retries < 50 {
+ time.Sleep(50 * time.Millisecond)
+ err2 = unix.Unmount(spec.Root.Path, unix.MNT_DETACH)
+ retries++
+ }
+ if err2 != nil {
+ logrus.Warnf("pkg/chroot: error unmounting %q (retried %d times): %v", spec.Root.Path, retries, err2)
+ if err == nil {
+ err = err2
+ }
}
}
return err
@@ -1096,6 +1104,7 @@ func setupChrootBindMounts(spec *specs.Spec, bundlePath string) (undoBinds func(
// Add /sys/fs/selinux to the set of masked paths, to ensure that we don't have processes
// attempting to interact with labeling, when they aren't allowed to do so.
spec.Linux.MaskedPaths = append(spec.Linux.MaskedPaths, "/sys/fs/selinux")
+
// Bind mount in everything we've been asked to mount.
for _, m := range spec.Mounts {
// Skip anything that we just mounted.
@@ -1141,13 +1150,11 @@ func setupChrootBindMounts(spec *specs.Spec, bundlePath string) (undoBinds func(
if !os.IsNotExist(err) {
return undoBinds, errors.Wrapf(err, "error examining %q for mounting in mount namespace", target)
}
- // The target isn't there yet, so create it, and make a
- // note to remove it later.
+ // The target isn't there yet, so create it.
if srcinfo.IsDir() {
if err = os.MkdirAll(target, 0111); err != nil {
return undoBinds, errors.Wrapf(err, "error creating mountpoint %q in mount namespace", target)
}
- removes = append(removes, target)
} else {
if err = os.MkdirAll(filepath.Dir(target), 0111); err != nil {
return undoBinds, errors.Wrapf(err, "error ensuring parent of mountpoint %q (%q) is present in mount namespace", target, filepath.Dir(target))
@@ -1157,7 +1164,6 @@ func setupChrootBindMounts(spec *specs.Spec, bundlePath string) (undoBinds func(
return undoBinds, errors.Wrapf(err, "error creating mountpoint %q in mount namespace", target)
}
file.Close()
- removes = append(removes, target)
}
}
requestFlags := bindFlags
@@ -1266,7 +1272,6 @@ func setupChrootBindMounts(spec *specs.Spec, bundlePath string) (undoBinds func(
if err := os.Mkdir(roEmptyDir, 0700); err != nil {
return undoBinds, errors.Wrapf(err, "error creating empty directory %q", roEmptyDir)
}
- removes = append(removes, roEmptyDir)
}
// Set up any masked paths that we need to. If we're running inside of
From ec1be6a51941e10b5316c911ef97c88940f7c095 Mon Sep 17 00:00:00 2001
From: Nalin Dahyabhai <nalin@redhat.com>
Date: Fri, 22 Nov 2019 14:52:25 -0500
Subject: [PATCH 3/3] overlay.bats typo: fuse-overlays should be fuse-overlayfs
Signed-off-by: Nalin Dahyabhai <nalin@redhat.com>
---
tests/overlay.bats | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/tests/overlay.bats b/tests/overlay.bats
index 04056f6804..7cc2d0c622 100644
--- a/tests/overlay.bats
+++ b/tests/overlay.bats
@@ -3,14 +3,14 @@
load helpers
@test "overlay specific level" {
- if test \! -e /usr/bin/fuse-overlays -a "$BUILDAH_ISOLATION" = "rootless"; then
+ if test \! -e /usr/bin/fuse-overlayfs -a "$BUILDAH_ISOLATION" = "rootless"; then
skip "BUILDAH_ISOLATION = $BUILDAH_ISOLATION" and no /usr/bin/fuse-overlayfs present
fi
image=alpine
mkdir ${TESTDIR}/lower
touch ${TESTDIR}/lower/foo
-cid=$(buildah --log-level=error from -v ${TESTDIR}/lower:/lower:O --quiet --signature-policy ${TESTSDIR}/policy.json $image)
+ cid=$(buildah --log-level=error from -v ${TESTDIR}/lower:/lower:O --quiet --signature-policy ${TESTSDIR}/policy.json $image)
# This should succeed
run_buildah --log-level=error run $cid ls /lower/foo

@ -0,0 +1,147 @@
From fb7d2b6bd6a16ffdbe4a69428e3ba5b487719e78 Mon Sep 17 00:00:00 2001
From: Daniel J Walsh <dwalsh@redhat.com>
Date: Tue, 17 Dec 2019 15:24:29 -0500
Subject: [PATCH] Add support for FIPS-Mode backends
If host is running in fips mode, then RHEL8.2 and beyond container images
will come with a directory /usr/share/crypto-policies/back-ends/FIPS.
This directory needs to be bind mounted over /etc/crypto-policies/back-ends in
order to make all tools in the container follow the FIPS Mode rules.
Signed-off-by: Daniel J Walsh <dwalsh@redhat.com>
---
pkg/secrets/secrets.go | 48 +++++++++++++++++++++++++++++++++---------
run_linux.go | 2 +-
2 files changed, 39 insertions(+), 11 deletions(-)
diff --git a/pkg/secrets/secrets.go b/pkg/secrets/secrets.go
index 80ca050165..ee2e9a7c84 100644
--- a/pkg/secrets/secrets.go
+++ b/pkg/secrets/secrets.go
@@ -148,12 +148,21 @@ func getMountsMap(path string) (string, string, error) {
}
// SecretMounts copies, adds, and mounts the secrets to the container root filesystem
+// Deprecated, Please use SecretMountWithUIDGID
func SecretMounts(mountLabel, containerWorkingDir, mountFile string, rootless, disableFips bool) []rspec.Mount {
return SecretMountsWithUIDGID(mountLabel, containerWorkingDir, mountFile, containerWorkingDir, 0, 0, rootless, disableFips)
}
-// SecretMountsWithUIDGID specifies the uid/gid of the owner
-func SecretMountsWithUIDGID(mountLabel, containerWorkingDir, mountFile, mountPrefix string, uid, gid int, rootless, disableFips bool) []rspec.Mount {
+// SecretMountsWithUIDGID copies, adds, and mounts the secrets to the container root filesystem
+// mountLabel: MAC/SELinux label for container content
+// containerWorkingDir: Private data for storing secrets on the host mounted in container.
+// mountFile: Additional mount points required for the container.
+// mountPoint: Container image mountpoint
+// uid: to assign to content created for secrets
+// gid: to assign to content created for secrets
+// rootless: indicates whether container is running in rootless mode
+// disableFips: indicates whether system should ignore fips mode
+func SecretMountsWithUIDGID(mountLabel, containerWorkingDir, mountFile, mountPoint string, uid, gid int, rootless, disableFips bool) []rspec.Mount {
var (
secretMounts []rspec.Mount
mountFiles []string
@@ -171,7 +180,7 @@ func SecretMountsWithUIDGID(mountLabel, containerWorkingDir, mountFile, mountPre
}
for _, file := range mountFiles {
if _, err := os.Stat(file); err == nil {
- mounts, err := addSecretsFromMountsFile(file, mountLabel, containerWorkingDir, mountPrefix, uid, gid)
+ mounts, err := addSecretsFromMountsFile(file, mountLabel, containerWorkingDir, uid, gid)
if err != nil {
logrus.Warnf("error mounting secrets, skipping entry in %s: %v", file, err)
}
@@ -187,7 +196,7 @@ func SecretMountsWithUIDGID(mountLabel, containerWorkingDir, mountFile, mountPre
// Add FIPS mode secret if /etc/system-fips exists on the host
_, err := os.Stat("/etc/system-fips")
if err == nil {
- if err := addFIPSModeSecret(&secretMounts, containerWorkingDir, mountPrefix, mountLabel, uid, gid); err != nil {
+ if err := addFIPSModeSecret(&secretMounts, containerWorkingDir, mountPoint, mountLabel, uid, gid); err != nil {
logrus.Errorf("error adding FIPS mode secret to container: %v", err)
}
} else if os.IsNotExist(err) {
@@ -206,7 +215,7 @@ func rchown(chowndir string, uid, gid int) error {
// addSecretsFromMountsFile copies the contents of host directory to container directory
// and returns a list of mounts
-func addSecretsFromMountsFile(filePath, mountLabel, containerWorkingDir, mountPrefix string, uid, gid int) ([]rspec.Mount, error) {
+func addSecretsFromMountsFile(filePath, mountLabel, containerWorkingDir string, uid, gid int) ([]rspec.Mount, error) {
var mounts []rspec.Mount
defaultMountsPaths := getMounts(filePath)
for _, path := range defaultMountsPaths {
@@ -285,7 +294,7 @@ func addSecretsFromMountsFile(filePath, mountLabel, containerWorkingDir, mountPr
}
m := rspec.Mount{
- Source: filepath.Join(mountPrefix, ctrDirOrFile),
+ Source: ctrDirOrFileOnHost,
Destination: ctrDirOrFile,
Type: "bind",
Options: []string{"bind", "rprivate"},
@@ -300,15 +309,15 @@ func addSecretsFromMountsFile(filePath, mountLabel, containerWorkingDir, mountPr
// root filesystem if /etc/system-fips exists on hosts.
// This enables the container to be FIPS compliant and run openssl in
// FIPS mode as the host is also in FIPS mode.
-func addFIPSModeSecret(mounts *[]rspec.Mount, containerWorkingDir, mountPrefix, mountLabel string, uid, gid int) error {
+func addFIPSModeSecret(mounts *[]rspec.Mount, containerWorkingDir, mountPoint, mountLabel string, uid, gid int) error {
secretsDir := "/run/secrets"
ctrDirOnHost := filepath.Join(containerWorkingDir, secretsDir)
if _, err := os.Stat(ctrDirOnHost); os.IsNotExist(err) {
if err = idtools.MkdirAllAs(ctrDirOnHost, 0755, uid, gid); err != nil {
- return errors.Wrapf(err, "making container directory on host failed")
+ return errors.Wrapf(err, "making container directory %q on host failed", ctrDirOnHost)
}
if err = label.Relabel(ctrDirOnHost, mountLabel, false); err != nil {
- return errors.Wrap(err, "error applying correct labels")
+ return errors.Wrapf(err, "error applying correct labels on %q", ctrDirOnHost)
}
}
fipsFile := filepath.Join(ctrDirOnHost, "system-fips")
@@ -323,7 +332,7 @@ func addFIPSModeSecret(mounts *[]rspec.Mount, containerWorkingDir, mountPrefix,
if !mountExists(*mounts, secretsDir) {
m := rspec.Mount{
- Source: filepath.Join(mountPrefix, secretsDir),
+ Source: ctrDirOnHost,
Destination: secretsDir,
Type: "bind",
Options: []string{"bind", "rprivate"},
@@ -331,6 +340,25 @@ func addFIPSModeSecret(mounts *[]rspec.Mount, containerWorkingDir, mountPrefix,
*mounts = append(*mounts, m)
}
+ srcBackendDir := "/usr/share/crypto-policies/back-ends/FIPS"
+ destDir := "/etc/crypto-policies/back-ends"
+ srcOnHost := filepath.Join(mountPoint, srcBackendDir)
+ if _, err := os.Stat(srcOnHost); err != nil {
+ if os.IsNotExist(err) {
+ return nil
+ }
+ return errors.Wrapf(err, "failed to stat FIPS Backend directory %q", ctrDirOnHost)
+ }
+
+ if !mountExists(*mounts, destDir) {
+ m := rspec.Mount{
+ Source: srcOnHost,
+ Destination: destDir,
+ Type: "bind",
+ Options: []string{"bind", "rprivate"},
+ }
+ *mounts = append(*mounts, m)
+ }
return nil
}
diff --git a/run_linux.go b/run_linux.go
index 4c2d73edde..c8e75eada6 100644
--- a/run_linux.go
+++ b/run_linux.go
@@ -460,7 +460,7 @@ func (b *Builder) setupMounts(mountPoint string, spec *specs.Spec, bundlePath st
}
// Get the list of secrets mounts.
- secretMounts := secrets.SecretMountsWithUIDGID(b.MountLabel, cdir, b.DefaultMountsFilePath, cdir, int(rootUID), int(rootGID), unshare.IsRootless(), false)
+ secretMounts := secrets.SecretMountsWithUIDGID(b.MountLabel, cdir, b.DefaultMountsFilePath, mountPoint, int(rootUID), int(rootGID), unshare.IsRootless(), false)
// Add temporary copies of the contents of volume locations at the
// volume locations, unless we already have something there.

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