diff options
| -rw-r--r-- | README.md | 2 | ||||
| -rw-r--r-- | RELEASE_NOTES.md | 9 | ||||
| -rw-r--r-- | pkg/rootless/rootless_linux.c | 48 | ||||
| -rw-r--r-- | pkg/rootlessport/rootlessport_linux.go | 26 | ||||
| -rw-r--r-- | pkg/specgen/namespaces.go | 2 |
5 files changed, 58 insertions, 29 deletions
@@ -5,7 +5,7 @@ Libpod provides a library for applications looking to use the Container Pod concept, popularized by Kubernetes. Libpod also contains the Pod Manager tool `(Podman)`. Podman manages pods, containers, container images, and container volumes. -* [Latest Version: 1.9.0](https://github.com/containers/libpod/releases/latest) +* [Latest Version: 1.9.1](https://github.com/containers/libpod/releases/latest) * [Continuous Integration:](contrib/cirrus/README.md) [](https://cirrus-ci.com/github/containers/libpod/master) * [GoDoc: ](https://godoc.org/github.com/containers/libpod/libpod) * Automated continuous release downloads (including remote-client): diff --git a/RELEASE_NOTES.md b/RELEASE_NOTES.md index aef66545f..6657529b9 100644 --- a/RELEASE_NOTES.md +++ b/RELEASE_NOTES.md @@ -1,5 +1,14 @@ # Release Notes +## 1.9.1 +### Bugfixes +- Fixed a bug where healthchecks could become nonfunctional if container log paths were manually set with `--log-path` and multiple container logs were placed in the same directory ([#5915](https://github.com/containers/libpod/issues/5915)) +- Fixed a bug where rootless Podman could, when using an older `libpod.conf`, print numerous warning messages about an invalid CGroup manager config +- Fixed a bug where rootless Podman would sometimes fail to close the rootless user namespace when joining it ([#5873](https://github.com/containers/libpod/issues/5873)) + +### Misc +- Updated containers/common to v0.8.2 + ## 1.9.0 ### Features - Experimental support has been added for `podman run --userns=auto`, which automatically allocates a unique UID and GID range for the new container's user namespace diff --git a/pkg/rootless/rootless_linux.c b/pkg/rootless/rootless_linux.c index 72d461cdc..716db81dc 100644 --- a/pkg/rootless/rootless_linux.c +++ b/pkg/rootless/rootless_linux.c @@ -535,32 +535,30 @@ create_pause_process (const char *pause_pid_file_path, char **argv) } } -static void -join_namespace_or_die (int pid_to_join, const char *ns_file) +static int +open_namespace (int pid_to_join, const char *ns_file) { char ns_path[PATH_MAX]; int ret; - int fd; ret = snprintf (ns_path, PATH_MAX, "/proc/%d/ns/%s", pid_to_join, ns_file); if (ret == PATH_MAX) { fprintf (stderr, "internal error: namespace path too long\n"); - _exit (EXIT_FAILURE); + return -1; } - fd = open (ns_path, O_CLOEXEC | O_RDONLY); - if (fd < 0) - { - fprintf (stderr, "cannot open: %s\n", ns_path); - _exit (EXIT_FAILURE); - } - if (setns (fd, 0) < 0) + return open (ns_path, O_CLOEXEC | O_RDONLY); +} + +static void +join_namespace_or_die (const char *name, int ns_fd) +{ + if (setns (ns_fd, 0) < 0) { - fprintf (stderr, "cannot set namespace to %s: %s\n", ns_path, strerror (errno)); + fprintf (stderr, "cannot set %s namespace\n", name); _exit (EXIT_FAILURE); } - close (fd); } int @@ -570,6 +568,8 @@ reexec_userns_join (int pid_to_join, char *pause_pid_file_path) char gid[16]; char **argv; int pid; + int mnt_ns = -1; + int user_ns = -1; char *cwd = getcwd (NULL, 0); sigset_t sigset, oldsigset; @@ -589,14 +589,28 @@ reexec_userns_join (int pid_to_join, char *pause_pid_file_path) _exit (EXIT_FAILURE); } + user_ns = open_namespace (pid_to_join, "user"); + if (user_ns < 0) + return user_ns; + mnt_ns = open_namespace (pid_to_join, "mnt"); + if (mnt_ns < 0) + { + close (user_ns); + return mnt_ns; + } + pid = fork (); if (pid < 0) fprintf (stderr, "cannot fork: %s\n", strerror (errno)); if (pid) { - /* We passed down these fds, close them. */ int f; + + /* We passed down these fds, close them. */ + close (user_ns); + close (mnt_ns); + for (f = 3; f < open_files_max_fd; f++) if (open_files_set == NULL || FD_ISSET (f % FD_SETSIZE, &(open_files_set[f / FD_SETSIZE]))) close (f); @@ -634,8 +648,10 @@ reexec_userns_join (int pid_to_join, char *pause_pid_file_path) _exit (EXIT_FAILURE); } - join_namespace_or_die (pid_to_join, "user"); - join_namespace_or_die (pid_to_join, "mnt"); + join_namespace_or_die ("user", user_ns); + join_namespace_or_die ("mnt", mnt_ns); + close (user_ns); + close (mnt_ns); if (syscall_setresgid (0, 0, 0) < 0) { diff --git a/pkg/rootlessport/rootlessport_linux.go b/pkg/rootlessport/rootlessport_linux.go index 1c1ed39df..c686d80fc 100644 --- a/pkg/rootlessport/rootlessport_linux.go +++ b/pkg/rootlessport/rootlessport_linux.go @@ -102,25 +102,27 @@ func parent() error { return err } - sigC := make(chan os.Signal, 1) - signal.Notify(sigC, unix.SIGPIPE) - defer func() { - // dummy signal to terminate the goroutine - sigC <- unix.SIGKILL - }() + exitC := make(chan os.Signal, 1) + defer close(exitC) + go func() { + sigC := make(chan os.Signal, 1) + signal.Notify(sigC, unix.SIGPIPE) defer func() { signal.Stop(sigC) close(sigC) }() - s := <-sigC - if s == unix.SIGPIPE { - if f, err := os.OpenFile("/dev/null", os.O_WRONLY, 0755); err == nil { - unix.Dup2(int(f.Fd()), 1) // nolint:errcheck - unix.Dup2(int(f.Fd()), 2) // nolint:errcheck - f.Close() + select { + case s := <-sigC: + if s == unix.SIGPIPE { + if f, err := os.OpenFile("/dev/null", os.O_WRONLY, 0755); err == nil { + unix.Dup2(int(f.Fd()), 1) // nolint:errcheck + unix.Dup2(int(f.Fd()), 2) // nolint:errcheck + f.Close() + } } + case <-exitC: } }() diff --git a/pkg/specgen/namespaces.go b/pkg/specgen/namespaces.go index f0161a793..396563267 100644 --- a/pkg/specgen/namespaces.go +++ b/pkg/specgen/namespaces.go @@ -216,6 +216,8 @@ func ParseNetworkNamespace(ns string) (Namespace, []string, error) { toReturn := Namespace{} var cniNetworks []string switch { + case ns == "slirp4netns": + toReturn.NSMode = Slirp case ns == "pod": toReturn.NSMode = FromPod case ns == "bridge": |