do not store the entire file but only the subset of what we have
modified. Also, we were not writing the correct data. Since it is
not trivial to serialize storage.conf correctly and all the various
supported options, serialize only what we care about.
Signed-off-by: Giuseppe Scrivano <gscrivan@redhat.com>
My host system runs Fedora Silverblue 29 and I have NetworkManager's
`dns=dnsmasq` setting enabled, so my `/etc/resolv.conf` only has
`127.0.0.1`.
I also run my development podman containers with `--net=host`
for various reasons.
If we have a host network namespace, there's no reason not to just
use the host's nameserver configuration either.
This fixes e.g. accessing content on a VPN, and is also faster
since the container is using cached DNS.
I know this doesn't solve the bigger picture issue of localhost-DNS
conflicting with bridged networking, but that's far more involved,
probably requiring a DNS proxy in the container. This patch
makes my workflow a lot nicer and was easy to write.
Signed-off-by: Colin Walters <walters@verbum.org>
we need to allow users to expose ports to the host for the purposes
of networking, like a webserver. the port exposure must be done at
the time the pod is created.
strictly speaking, the port exposure occurs on the infra container.
Signed-off-by: baude <bbaude@redhat.com>
Not just nil.
Addressing:
pkg/varlinkapi/images.go:273:15⚠️ ineffectual assignment to err (ineffassign)
Signed-off-by: Šimon Lukašík <slukasik@redhat.com>
Need to return an error pointing user in right direction if rootless podman
fails, because of no /etc/subuid or /etc/subgid files.
Also fix up man pages to better describe rootless podman.
Signed-off-by: Daniel J Walsh <dwalsh@redhat.com>
If fuse-overlayfs is present, rootless containers default to use it.
This can still be overriden either via the command line with
--storage-driver or in the ~/.config/containers/storage.conf
configuration file.
Signed-off-by: Giuseppe Scrivano <gscrivan@redhat.com>
Container images can be created without passwd or group file, currently
if one of these containers gets run with a --user flag the container blows
up complaining about t a missing /etc/passwd file.
We just need to check if the error on read is ENOEXIST then allow the
read to return, not fail.
Signed-off-by: Daniel J Walsh <dwalsh@redhat.com>
we are currently using something like /run/user/UID/run as runroot, as
it is already done by Buildah. This ends up with
/run/user/UID/run/runc for the runc directory. Change to drop the
additional /run so that runc will use /run/user/UID/runc.
Signed-off-by: Giuseppe Scrivano <gscrivan@redhat.com>
It was setting the wrong variable (CamelCase)
in the wrong module ("main", not "libpod")...
Signed-off-by: Anders F Björklund <anders.f.bjorklund@gmail.com>
for the purposes of performance and security, we use securejoin to contstruct
the root fs's path so that symlinks are what they appear to be and no pointing
to something naughty.
then instead of chrooting to parse /etc/passwd|/etc/group, we now use the runc user/group
methods which saves us quite a bit of performance.
Signed-off-by: baude <bbaude@redhat.com>
We are still requiring oci-systemd-hook to be installed in order to run
systemd within a container. This patch properly mounts
/sys/fs/cgroup/systemd/libpod_parent/libpod-UUID on /sys/fs/cgroup/systemd inside of container.
Since we need the UUID of the container, we needed to move Systemd to be a config option of the
container.
Signed-off-by: Daniel J Walsh <dwalsh@redhat.com>
If someone runs podman as a user (uid) that is not defined in the container
we want generate a passwd file so that getpwuid() will work inside of container.
Signed-off-by: Daniel J Walsh <dwalsh@redhat.com>
As of now, there is no way to debug podman clean up processes.
They are started by conmon with no stdout/stderr and log nowhere.
This allows us to actually figure out what is going on when a
cleanup process runs.
Signed-off-by: Matthew Heon <matthew.heon@gmail.com>
Add the --ip flag back with bash completions. Manpages still
missing.
Add plumbing to pass appropriate the appropriate option down to
libpod to connect the flag to backend logic added in the previous
commits.
Signed-off-by: Matthew Heon <matthew.heon@gmail.com>
the issue is caused by the Go Runtime that messes up with the process
signals, overriding SIGSETXID and SIGCANCEL which are used internally
by glibc. They are used to inform all the threads to update their
stored uid/gid information. This causes a hang on the set*id glibc
wrappers since the handler installed by glibc is never invoked.
Since we are running with only one thread, we don't really need to
update other threads or even the current thread as we are not using
getuid/getgid before the execvp.
Closes: https://github.com/containers/libpod/issues/1625
Signed-off-by: Giuseppe Scrivano <gscrivan@redhat.com>
The vendoring issues with libnetwork were significant (it was
dragging in massive amounts of code) and were just not worth
spending the time to work through. Highly unlikely we'll ever end
up needing to update this code, so move it directly into pkg/ so
we don't need to vendor libnetwork. Make a few small changes to
remove the need for the remainder of libnetwork.
Signed-off-by: Matthew Heon <matthew.heon@gmail.com>
To work better with Kata containers, we need to delete() from the
OCI runtime as a part of cleanup, to ensure resources aren't
retained longer than they need to be.
To enable this, we need to add a new state to containers,
ContainerStateExited. Containers transition from
ContainerStateStopped to ContainerStateExited via cleanupRuntime
which is invoked as part of cleanup(). A container in the Exited
state is identical to Stopped, except it has been removed from
the OCI runtime and thus will be handled differently when
initializing the container.
Signed-off-by: Matthew Heon <matthew.heon@gmail.com>
* Update varlink document
* Add NoContainersInPod error in go and python
* Add support for varlink pod interface
* New code passes pylint
* Fix bug in test_runner.sh
* Update integration tests for race condition on status check
* Add missing port config file support
Signed-off-by: Jhon Honce <jhonce@redhat.com>
For the sake of debug and problem reporting, we would benefit from knowing
what buildah version was vendored into podman. Also, knowing the distribution
and distribution version would also be handy.
Signed-off-by: baude <bbaude@redhat.com>
We added a timeout for convenience, but most invocations don't
care about it. Refactor it into WaitWithTimeout() and add a
Wait() that doesn't require a timeout and uses the default.
Signed-off-by: Matthew Heon <matthew.heon@gmail.com>
Closes: #1527
Approved by: mheon
Most container images assume there are at least 65536 UIDs/GIDs
available. Raise an error if there are not enough IDs allocated to
the current user.
Signed-off-by: Giuseppe Scrivano <gscrivan@redhat.com>
Closes: #1520
Approved by: rhatdan
