Commit Graph

1225 Commits

Author SHA1 Message Date
OpenShift Merge Robot bd21a99501
Merge pull request #3121 from giuseppe/rootless-error-cni
network: raise a clearer error when using CNI
2019-05-16 16:24:06 +02:00
OpenShift Merge Robot 95d90c1de7
Merge pull request #3127 from mheon/fix_start_race
Ensure that start() in StartAndAttach() is locked
2019-05-16 01:08:05 +02:00
OpenShift Merge Robot 3057572fc1
Merge pull request #3124 from mheon/remove_pod_lock
When removing pods, free their locks
2019-05-15 21:17:54 +02:00
baude 7a58c6601b set default event logger based on build tags
once the default event logger was removed from libpod.conf, we need to
set the default based on whether the systemd build tag is used or not.

Signed-off-by: baude <bbaude@redhat.com>
2019-05-14 16:17:11 -05:00
Matthew Heon d83d0abfbf Ensure that start() in StartAndAttach() is locked
StartAndAttach() runs start() in a goroutine, which can allow it
to fire after the caller returns - and thus, after the defer to
unlock the container lock has fired.

The start() call _must_ occur while the container is locked, or
else state inconsistencies may occur.

Fixes #3114

Signed-off-by: Matthew Heon <matthew.heon@pm.me>
2019-05-14 14:54:21 -04:00
Matthew Heon 7b4f6f573d When removing pods, free their locks
Without this we leak allocated locks, which is definitely not a
good thing.

Signed-off-by: Matthew Heon <matthew.heon@pm.me>
2019-05-14 10:38:21 -04:00
Giuseppe Scrivano 04aa0d65b0
network: raise a clearer error when using CNI
print a clearer error message when an unprivileged user attempts to
create a network using CNI.

Closes: https://github.com/containers/libpod/issues/3118

Signed-off-by: Giuseppe Scrivano <gscrivan@redhat.com>
2019-05-14 15:37:47 +02:00
OpenShift Merge Robot ec382e4c8d
Merge pull request #3083 from openSUSE/systemd-optional
Add `systemd` build tag
2019-05-13 20:40:19 +02:00
baude c71761b9ba healthcheck benign error
clean up the reporting of a benign error that can occur when a container
is first stopped and then removed.

Signed-off-by: baude <bbaude@redhat.com>
2019-05-13 08:33:51 -05:00
Sascha Grunert d1fc3fc702
Add `systemd` build tag
If the systemd development files are not present on the system which
builds podman, then `podman events` will error on runtime creation.
Beside this, a warning will be printed when compiling podman.

This commit mainly exists because projects which depend on libpod
would not need the podman event support and therefore do not need to
rely on the systemd headers.

Signed-off-by: Sascha Grunert <sgrunert@suse.com>
2019-05-13 14:00:27 +02:00
Matthew Heon c9c00ecd53 When removing a pod with CGroupfs, set pids limit to 0
When using CGroupfs, we see races during pod removal between
removing the CGroup and the cleanup process starting (in the
CGroup, thus preventing removal).

The simplest way to avoid this is to prevent the forking of the
cleanup process. Conveniently, we can do this via the CGroup that
we already created for Conmon - we just need to update the PID
limit to 0, which completely inhibits new forks.

Signed-off-by: Matthew Heon <matthew.heon@pm.me>
2019-05-12 00:10:59 -04:00
Matthew Heon 5cbb3e7e9d Use standard remove functions for removing pod ctrs
Instead of rewriting the logic, reuse the standard logic we use
for removing containers, which is much better tested.

Signed-off-by: Matthew Heon <matthew.heon@pm.me>
2019-05-10 14:14:29 -04:00
OpenShift Merge Robot 7b54ebb48f
Merge pull request #3082 from mheon/pod_removal_reliability
Improve robustness of pod removal
2019-05-08 20:19:39 +02:00
Matthew Heon e9c78b4113 Preserve errors returned by removing pods
Ensure that, if an error occurs somewhere along the way when we
remove a pod, it's preserved until the end and returned, even as
we continue to remove the pod.

Signed-off-by: Matthew Heon <matthew.heon@pm.me>
2019-05-07 21:44:04 -04:00
Matthew Heon f5938be1f7 Improve robustness of pod removal
Removing a pod must first removal all containers in the pod.
Libpod requires the state to remain consistent at all times, so
references to a deleted pod must all be cleansed first.

Pods can have many containers in them. We presently iterate
through all of them, and if an error occurs trying to clean up
and remove any single container, we abort the entire operation
(but cannot recover anything already removed - pod removal is not
an atomic operation).

Because of this, if a removal error occurs partway through, we
can end up with a pod in an inconsistent state that is no longer
usable. What's worse, if the error is in the infra container, and
it's persistent, we get zombie pods - completely unable to be
removed.

When we saw some of these same issues with containers not in
pods, we modified the removal code there to aggressively purge
containers from the database, then try to clean up afterwards.
Take the same approach here, and make cleanup errors nonfatal.
Once we've gone ahead and removed containers, we need to see
pod deletion through to the end - we'll log errors but keep
going.

Also, fix some other small things (most notably, we didn't make
events for the containers removed).

Signed-off-by: Matthew Heon <matthew.heon@pm.me>
2019-05-07 21:28:22 -04:00
baude bc7b1ca03d enable integration tests for remote-client
first pass at enabling a swath of integration tests for the
remote-client.

Signed-off-by: baude <bbaude@redhat.com>
2019-05-07 14:06:02 -05:00
Matthew Heon faae3a7065 When refreshing after a reboot, force lock allocation
After a reboot, when we refresh Podman's state, we retrieved the
lock from the fresh SHM instance, but we did not mark it as
allocated to prevent it being handed out to other containers and
pods.

Provide a method for marking locks as in-use, and use it when we
refresh Podman state after a reboot.

Fixes #2900

Signed-off-by: Matthew Heon <matthew.heon@pm.me>
2019-05-06 14:17:54 -04:00
OpenShift Merge Robot 4aa90145bf
Merge pull request #2826 from mheon/restart_policy
Add restart policy for containers
2019-05-03 23:14:12 +02:00
OpenShift Merge Robot fde0dc2a55
Merge pull request #3064 from rhatdan/sysregistriesv2
change from sysregistries to sysregistriesv2
2019-05-03 18:46:35 +02:00
Matthew Heon 5c4fefa533 Small code fix
Signed-off-by: Matthew Heon <matthew.heon@pm.me>
2019-05-03 11:42:34 -04:00
Matthew Heon 4d348d7839 Fix 'restart' event in journald
Ensure that we can decode the restart event with the new journald
events.

Signed-off-by: Matthew Heon <matthew.heon@pm.me>
2019-05-03 10:43:14 -04:00
Daniel J Walsh d1a7378aa0
change from sysregistries to sysregistriesv2
We want to start supporting the registries.conf format.
Also start showing blocked registries in podman info
Fix sorting so all registries are listed together in podman info.

Signed-off-by: Daniel J Walsh <dwalsh@redhat.com>
2019-05-03 10:38:51 -04:00
Matthew Heon d7c367aa61 Address review comments on restart policy
Signed-off-by: Matthew Heon <matthew.heon@pm.me>
2019-05-03 10:36:16 -04:00
Matthew Heon cafb68e301 Add a restart event, and make one during restart policy
Signed-off-by: Matthew Heon <matthew.heon@pm.me>
2019-05-03 10:36:16 -04:00
Matthew Heon 56356d7027 Restart policy should not run if a container is running
Signed-off-by: Matthew Heon <matthew.heon@pm.me>
2019-05-03 10:36:16 -04:00
Matthew Heon 7ba1b609aa Move to using constants for valid restart policy types
Signed-off-by: Matthew Heon <matthew.heon@pm.me>
2019-05-03 10:36:16 -04:00
Matthew Heon f4db6d5cf6 Add support for retry count with --restart flag
The on-failure restart option supports restarting only a given
number of times. To do this, we need one additional field in the
DB to track restart count (which conveniently fills a field in
Inspect we weren't populating), plus some plumbing logic.

Signed-off-by: Matthew Heon <matthew.heon@pm.me>
2019-05-03 10:36:16 -04:00
Matthew Heon dc42304f38 Sending signals to containers prevents restart policy
Noticed this when testing some behavior with Docker.

Signed-off-by: Matthew Heon <matthew.heon@pm.me>
2019-05-03 10:36:16 -04:00
Matthew Heon 0d73ee40b2 Add container restart policy to Libpod & Podman
This initial version does not support restart count, but it works
as advertised otherwise.

Signed-off-by: Matthew Heon <matthew.heon@pm.me>
2019-05-03 10:36:16 -04:00
Matthew Heon 3fb52f4fbb Add a StoppedByUser field to the DB
This field indicates that a container was explciitly stopped by
an API call, and did not exit naturally. It's used when
implementing restart policy for containers.

Signed-off-by: Matthew Heon <matthew.heon@pm.me>
2019-05-03 10:36:16 -04:00
Valentin Rothberg 0d2d523390 top: fallback to execing ps(1)
Fallback to executing ps(1) in case we hit an unknown psgo descriptor.
This ensures backwards compatibility with docker-top, which was purely
ps(1) driven.

Also support comma-separated descriptors as input.

Signed-off-by: Valentin Rothberg <rothberg@redhat.com>
2019-05-03 11:20:16 +02:00
OpenShift Merge Robot f3c494eb28
Merge pull request #2959 from mheon/merge_volume_flags
Merge volume flags implementation
2019-05-03 01:30:13 +02:00
OpenShift Merge Robot 139eeb3eb3
Merge pull request #3051 from mheon/podman_migrate_fixes
Small fixes for #2950
2019-05-02 22:48:12 +02:00
OpenShift Merge Robot ccf28a89bd
Merge pull request #3039 from mheon/podman_init
Add podman init command
2019-05-02 20:45:44 +02:00
Matthew Heon 416cc20c68 Small fixes for #2950
We merged #2950 with some nits still remaining, as Giuseppe was
going on PTO. This addresses those small requested changes.

Signed-off-by: Matthew Heon <matthew.heon@pm.me>
2019-05-01 15:07:30 -04:00
OpenShift Merge Robot 7d05ff3fc7
Merge pull request #3049 from giuseppe/drop-unuseful-check
container: drop rootless check
2019-05-01 20:20:12 +02:00
Giuseppe Scrivano cc9ef4e61b
container: drop rootless check
we don't need to treat the rootless case differently now that we use a
single user namespace.

Signed-off-by: Giuseppe Scrivano <giuseppe@scrivano.org>
2019-05-01 18:49:08 +02:00
Matthew Heon 0b2c9c2acc Add basic structure of podman init command
As part of this, rework the number of workers used by various
Podman tasks to match original behavior - need an explicit
fallthrough in the switch statement for that block to work as
expected.

Also, trivial change to Podman cleanup to work on initialized
containers - we need to reset to a different state after cleaning
up the OCI runtime.

Signed-off-by: Matthew Heon <matthew.heon@pm.me>
2019-05-01 11:12:24 -04:00
Matthew Heon 30257cf073 Ensure that named volumes have their options parsed
This involves moving some code out of pkg/spec/ into util/ so it
can also be used by libpod.

Signed-off-by: Matthew Heon <matthew.heon@pm.me>
2019-05-01 10:19:05 -04:00
baude 0b6bb6a3d3 enable podman-remote on windows
build a podman-remote binary for windows that allows users to use the
remote client on windows and interact with podman on linux system.

Signed-off-by: baude <bbaude@redhat.com>
2019-04-30 15:28:39 -05:00
OpenShift Merge Robot e0312334cc
Merge pull request #3025 from rhatdan/read-only
Add --read-only-tmpfs options
2019-04-29 02:38:14 -07:00
Giuseppe Scrivano f49e0c19ed
runtime: pass down the context
Signed-off-by: Giuseppe Scrivano <gscrivan@redhat.com>
2019-04-26 22:23:49 +02:00
Giuseppe Scrivano 525f0b30ac
system: add new subcommand "migrate"
it is useful to migrate existing containers to a new version of
podman.  Currently, it is needed to migrate rootless containers that
were created with podman <= 1.2 to a newer version which requires all
containers to be running in the same user namespace.

Closes: https://github.com/containers/libpod/issues/2935

Signed-off-by: Giuseppe Scrivano <gscrivan@redhat.com>
2019-04-26 22:23:45 +02:00
OpenShift Merge Robot e8ede74f5e
Merge pull request #3019 from mheon/system_events
Add System event type and renumber, refresh events
2019-04-26 11:16:27 -07:00
Daniel J Walsh 3a4be4b66c
Add --read-only-tmpfs options
The --read-only-tmpfs option caused podman to mount tmpfs on /run, /tmp, /var/tmp
if the container is running int read-only mode.

The default is true, so you would need to execute a command like

--read-only --read-only-tmpfs=false to turn off this behaviour.

Signed-off-by: Daniel J Walsh <dwalsh@redhat.com>
2019-04-26 12:29:10 -04:00
Matthew Heon e05af78329 Do not hard fail on non-decodable events
Signed-off-by: Matthew Heon <mheon@redhat.com>
2019-04-26 10:50:57 -04:00
Matthew Heon 04d6ff0582 Add System event type and renumber, refresh events
Also, re-add locking to file eventer Write() to protect against
concurrent events.

Signed-off-by: Matthew Heon <mheon@redhat.com>
2019-04-25 16:23:09 -04:00
baude c4dd7c5813 enable podman remote top
add the ability for the remote client to display a container's running
processes.

Signed-off-by: baude <bbaude@redhat.com>
2019-04-25 14:44:14 -05:00
OpenShift Merge Robot a01c62fcbd
Merge pull request #3013 from mheon/logging_for_refresh
Logging for refresh
2019-04-25 12:43:43 -07:00
OpenShift Merge Robot 01e79477ca
Merge pull request #2850 from baude/eventsjournald
journald event logging
2019-04-25 12:20:39 -07:00