| Commit message (Collapse) | Author | Age |
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When --cgroupns=private is used we need to mount a new cgroup file
system so that it points to the correct namespace.
Needs: https://github.com/containers/crun/pull/88
Signed-off-by: Giuseppe Scrivano <gscrivan@redhat.com>
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Add `ContainerManager` annotation to created containers
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This change adds the following annotation to every container created by
podman:
```json
"Annotations": {
"io.containers.manager": "libpod"
}
```
Target of this annotaions is to indicate which project in the containers
ecosystem is the major manager of a container when applications share
the same storage paths. This way projects can decide if they want to
manipulate the container or not. For example, since CRI-O and podman are
not using the same container library (libpod), CRI-O can skip podman
containers and provide the end user more useful information.
A corresponding end-to-end test has been adapted as well.
Relates to: https://github.com/cri-o/cri-o/pull/2761
Signed-off-by: Sascha Grunert <sgrunert@suse.com>
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Support running containers without CGroups
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This is mostly used with Systemd, which really wants to manage
CGroups itself when managing containers via unit file.
Signed-off-by: Matthew Heon <matthew.heon@pm.me>
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Previously, we only did this for volumes created at the same time
as the container. However, this is not correct behavior - Docker
does so for all named volumes, even those made with
'podman volume create' and mounted into a container later.
Fixes #3945
Signed-off-by: Matthew Heon <matthew.heon@pm.me>
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Signed-off-by: Matthew Heon <matthew.heon@pm.me>
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When we fail to remove a container's SHM, that's an error, and we
need to report it as such. This may be part of our lingering
storage woes.
Also, remove MNT_DETACH. It may be another cause of the storage
removal failures.
Signed-off-by: Matthew Heon <matthew.heon@pm.me>
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When volume options and the local volume driver are specified,
the volume is intended to be mounted using the 'mount' command.
Supported options will be used to volume the volume before the
first container using it starts, and unmount the volume after the
last container using it dies.
This should work for any local filesystem, though at present I've
only tested with tmpfs and btrfs.
Signed-off-by: Matthew Heon <matthew.heon@pm.me>
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when cni returns a list of dns servers, we should add them under the
right conditions. the defined conditions are as follows:
- if the user provides dns, it and only it are added.
- if not above and you get a cni name server, it is added and a
forwarding dns instance is created for what was in resolv.conf.
- if not either above, the entries from the host's resolv.conf are used.
Signed-off-by: baude <bbaude@redhat.com>
Signed-off-by: baude <bbaude@redhat.com>
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commit 223fe64dc0a592fd44e0c9fde9f9e0ca087d566f introduced the
regression.
When running on cgroups v1, bind mount only /sys/fs/cgroup/systemd as
rw, as the code did earlier.
Also, simplify the rootless code as it doesn't require any special
handling when using --systemd.
Closes: https://bugzilla.redhat.com/show_bug.cgi?id=1737554
Signed-off-by: Giuseppe Scrivano <gscrivan@redhat.com>
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This reverts commit 80dcd4bebcdc8e280f6b43228561d09c194c328b.
Signed-off-by: baude <bbaude@redhat.com>
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restore: added --ignore-static-ip option
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If a container is restored multiple times from an exported checkpoint
with the help of '--import --name', the restore will fail if during
'podman run' a static container IP was set with '--ip'. The user can
tell the restore process to ignore the static IP with
'--ignore-static-ip'.
Signed-off-by: Adrian Reber <areber@redhat.com>
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rootless: Rearrange setup of rootless containers ***CIRRUS: TEST IMAGES***
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In order to run Podman with VM-based runtimes unprivileged, the
network must be set up prior to the container creation. Therefore
this commit modifies Podman to run rootless containers by:
1. create a network namespace
2. pass the netns persistent mount path to the slirp4netns
to create the tap inferface
3. pass the netns path to the OCI spec, so the runtime can
enter the netns
Closes #2897
Signed-off-by: Gabi Beyer <gabrielle.n.beyer@intel.com>
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systemd, cgroupsv2: not bind mount /sys/fs/cgroup/systemd
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when running on a cgroups v2 system, do not bind mount
the named hierarchy /sys/fs/cgroup/systemd as it doesn't exist
anymore. Instead bind mount the entire /sys/fs/cgroup.
Signed-off-by: Giuseppe Scrivano <gscrivan@redhat.com>
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Signed-off-by: Daniel J Walsh <dwalsh@redhat.com>
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allow to join the user namespace of another container.
Closes: https://github.com/containers/libpod/issues/3629
Signed-off-by: Giuseppe Scrivano <gscrivan@redhat.com>
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This includes:
Implement exec -i and fix some typos in description of -i docs
pass failed runtime status to caller
Add resize handling for a terminal connection
Customize exec systemd-cgroup slice
fix healthcheck
fix top
add --detach-keys
Implement podman-remote exec (jhonce)
* Cleanup some orphaned code (jhonce)
adapt remote exec for conmon exec (pehunt)
Fix healthcheck and exec to match docs
Introduce two new OCIRuntime errors to more comprehensively describe situations in which the runtime can error
Use these different errors in branching for exit code in healthcheck and exec
Set conmon to use new api version
Signed-off-by: Jhon Honce <jhonce@redhat.com>
Signed-off-by: Peter Hunt <pehunt@redhat.com>
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this is the third round of preparing to use the golangci-lint on our
code base.
Signed-off-by: baude <bbaude@redhat.com>
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The newly added functionality to include the container's root
file-system changes into the checkpoint archive can now be explicitly
disabled. Either during checkpoint or during restore.
If a container changes a lot of files during its runtime it might be
more effective to migrated the root file-system changes in some other
way and to not needlessly increase the size of the checkpoint archive.
If a checkpoint archive does not contain the root file-system changes
information it will automatically be skipped. If the root file-system
changes are part of the checkpoint archive it is also possible to tell
Podman to ignore these changes.
Signed-off-by: Adrian Reber <areber@redhat.com>
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One of the last limitations when migrating a container using Podman's
'podman container checkpoint --export=/path/to/archive.tar.gz' was
that it was necessary to manually handle changes to the container's root
file-system. The recommendation was to mount everything as --tmpfs where
the root file-system was changed.
This extends the checkpoint export functionality to also include all
changes to the root file-system in the checkpoint archive. The
checkpoint archive now includes a tarstream of the result from 'podman
diff'. This tarstream will be applied to the restored container before
restoring the container.
With this any container can now be migrated, even it there are changes
to the root file-system.
There was some discussion before implementing this to base the root
file-system migration on 'podman commit', but it seemed wrong to do
a 'podman commit' before the migration as that would change the parent
layer the restored container is referencing. Probably not really a
problem, but it would have meant that a migrated container will always
reference another storage top layer than it used to reference during
initial creation.
Signed-off-by: Adrian Reber <areber@redhat.com>
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During 'podman container checkpoint' the finished time was not set. This
resulted in a strange container status after checkpointing:
Exited (0) 292 years ago
During checkpointing FinishedTime is now set to time.now().
Signed-off-by: Adrian Reber <areber@redhat.com>
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clean up code identified as problematic by golands inspection
Signed-off-by: baude <bbaude@redhat.com>
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this is phase 2 for the removal of libpod from main.
Signed-off-by: baude <bbaude@redhat.com>
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Signed-off-by: Giuseppe Scrivano <gscrivan@redhat.com>
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the compilation demands of having libpod in main is a burden for the
remote client compilations. to combat this, we should move the use of
libpod structs, vars, constants, and functions into the adapter code
where it will only be compiled by the local client.
this should result in cleaner code organization and smaller binaries. it
should also help if we ever need to compile the remote client on
non-Linux operating systems natively (not cross-compiled).
Signed-off-by: baude <bbaude@redhat.com>
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Closes: https://github.com/containers/libpod/issues/3405
Signed-off-by: Giuseppe Scrivano <gscrivan@redhat.com>
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Allow Podman containers to request to use a specific OCI runtime
if multiple runtimes are configured. This is the first step to
properly supporting containers in a multi-runtime environment.
The biggest changes are that all OCI runtimes are now initialized
when Podman creates its runtime, and containers now use the
runtime requested in their configuration (instead of always the
default runtime).
Signed-off-by: Matthew Heon <matthew.heon@pm.me>
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Accidently removed /run/lock from systemd mounts
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This is blowing up systemd containers on Ubuntu.
Signed-off-by: Daniel J Walsh <dwalsh@redhat.com>
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When using slirp4netns, be sure the built-in DNS server is the first
one to be used.
Closes: https://github.com/containers/libpod/issues/3277
Signed-off-by: Giuseppe Scrivano <gscrivan@redhat.com>
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The option to restore a container from an external checkpoint archive
(podman container restore -i /tmp/checkpoint.tar.gz) restores a
container with the same name and same ID as id had before checkpointing.
This commit adds the option '--name,-n' to 'podman container restore'.
With this option the restored container gets the name specified after
'--name,-n' and a new ID. This way it is possible to restore one
container multiple times.
If a container is restored with a new name Podman will not try to
request the same IP address for the container as it had during
checkpointing. This implicitly assumes that if a container is restored
from a checkpoint archive with a different name, that it will be
restored multiple times and restoring a container multiple times with
the same IP address will fail as each IP address can only be used once.
Signed-off-by: Adrian Reber <areber@redhat.com>
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This commit adds an option to the checkpoint command to export a
checkpoint into a tar.gz file as well as importing a checkpoint tar.gz
file during restore. With all checkpoint artifacts in one file it is
possible to easily transfer a checkpoint and thus enabling container
migration in Podman. With the following steps it is possible to migrate
a running container from one system (source) to another (destination).
Source system:
* podman container checkpoint -l -e /tmp/checkpoint.tar.gz
* scp /tmp/checkpoint.tar.gz destination:/tmp
Destination system:
* podman pull 'container-image-as-on-source-system'
* podman container restore -i /tmp/checkpoint.tar.gz
The exported tar.gz file contains the checkpoint image as created by
CRIU and a few additional JSON files describing the state of the
checkpointed container.
Now the container is running on the destination system with the same
state just as during checkpointing. If the container is kept running
on the source system with the checkpoint flag '-R', the result will be
that the same container is running on two different hosts.
Signed-off-by: Adrian Reber <areber@redhat.com>
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This adds a couple of function in structure members needed in the next
commit to make container migration actually work. This just splits of
the function which are not modifying existing code.
Signed-off-by: Adrian Reber <areber@redhat.com>
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Commit 27f9e23a0b9e already prevents setting the profile when creating
the spec but we also need to avoid loading and setting the profile when
creating the container.
Fixes: #3112
Signed-off-by: Valentin Rothberg <rothberg@redhat.com>
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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>
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The SELinux label for the CRIU dump.log was explicitly set in Podman.
The label for the restore.log, however, not. This just moves the code
to label the log file into a function and calls that functions during
checkpoint and restore.
Signed-off-by: Adrian Reber <areber@redhat.com>
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* refactor command output to use one function
* Add new worker pool parallel operations
* Implement podman-remote umount
* Refactored podman wait to use printCmdOutput()
Signed-off-by: Jhon Honce <jhonce@redhat.com>
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This swaps the previous handling (parse all volume mounts on the
container and look for ones that might refer to named volumes)
for the new, explicit named volume lists stored per-container.
It also deprecates force-removing volumes that are in use. I
don't know how we want to handle this yet, but leaving containers
that depend on a volume that no longer exists is definitely not
correct.
Signed-off-by: Matthew Heon <matthew.heon@pm.me>
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We have an issue in the current implementation where the cleanup
process is not able to umount the storage as it is running in a
separate namespace.
Simplify the implementation for user namespaces by not using an
intermediate mount namespace. For doing it, we need to relax the
permissions on the parent directories and allow browsing
them. Containers that are running without a user namespace, will still
maintain mode 0700 on their directory.
Signed-off-by: Giuseppe Scrivano <gscrivan@redhat.com>
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Signed-off-by: Valentin Rothberg <rothberg@redhat.com>
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Signed-off-by: Matthew Heon <matthew.heon@pm.me>
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Specifically, we want to be able to specify whether resolv.conf
and /etc/hosts will be create and bind-mounted into the
container.
Signed-off-by: Matthew Heon <matthew.heon@pm.me>
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when --uidmap is used, the user won't be able to access
/var/lib/containers/storage/volumes. Use the intermediate mount
namespace, that is accessible to root in the container, for mounting
the volumes inside the container.
Closes: https://github.com/containers/libpod/issues/2713
Signed-off-by: Giuseppe Scrivano <gscrivan@redhat.com>
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When creating a new image volume to be mounted into a container, we need to
make sure the new volume matches the Ownership and permissions of the path
that it will be mounted on.
For example if a volume inside of a containre image is owned by the database
UID, we want the volume to be mounted onto the image to be owned by the
database UID.
Signed-off-by: Daniel J Walsh <dwalsh@redhat.com>
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build: honor --net
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Signed-off-by: Giuseppe Scrivano <gscrivan@redhat.com>
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