support a custom tag to add to each log for the container.
It is currently supported only by the journald backend.
Closes: https://github.com/containers/libpod/issues/3653
Signed-off-by: Giuseppe Scrivano <gscrivan@redhat.com>
RootlessKit port forwarder has a lot of advantages over the slirp4netns port forwarder:
* Very high throughput.
Benchmark result on Travis: socat: 5.2 Gbps, slirp4netns: 8.3 Gbps, RootlessKit: 27.3 Gbps
(https://travis-ci.org/rootless-containers/rootlesskit/builds/597056377)
* Connections from the host are treated as 127.0.0.1 rather than 10.0.2.2 in the namespace.
No UDP issue (#4586)
* No tcp_rmem issue (#4537)
* Probably works with IPv6. Even if not, it is trivial to support IPv6. (#4311)
* Easily extensible for future support of SCTP
* Easily extensible for future support of `lxc-user-nic` SUID network
RootlessKit port forwarder has been already adopted as the default port forwarder by Rootless Docker/Moby,
and no issue has been reported AFAIK.
As the port forwarder is imported as a Go package, no `rootlesskit` binary is required for Podman.
Fix#4586
May-fix #4559Fix#4537
May-fix #4311
See https://github.com/rootless-containers/rootlesskit/blob/v0.7.0/pkg/port/builtin/builtin.go
Signed-off-by: Akihiro Suda <akihiro.suda.cz@hco.ntt.co.jp>
Store the full command plus arguments of the process the container has
been created with. Expose this data as a `Config.CreateCommand` field
in the container-inspect data as well.
This information can be useful for debugging, as we can find out which
command has created the container, and, if being created via the Podman
CLI, we know exactly with which flags the container has been created
with.
The immediate motivation for this change is to use this information for
`podman-generate-systemd` to generate systemd-service files that allow
for creating new containers (in contrast to only starting existing
ones).
Signed-off-by: Valentin Rothberg <rothberg@redhat.com>
The code currently assumes that the container we delegate network
namespace to will never further delegate to another container, so
when looking up things like /etc/hosts and /etc/resolv.conf we
won't pull the correct files from the chained dependency. The
changes to resolve this are relatively simple - just need to keep
looking until we find a container without NetNsCtr set.
Fixes#4626
Signed-off-by: Matthew Heon <matthew.heon@pm.me>
Refactor the `RuntimeConfig` along with related code from libpod into
libpod/config. Note that this is a first step of consolidating code
into more coherent packages to make the code more maintainable and less
prone to regressions on the long runs.
Some libpod definitions were moved to `libpod/define` to resolve
circular dependencies.
Signed-off-by: Valentin Rothberg <rothberg@redhat.com>
Move to containers/image v5 and containers/buildah to v1.11.4.
Replace an equality check with a type assertion when checking for a
docker.ErrUnauthorizedForCredentials in `podman login`.
Signed-off-by: Nalin Dahyabhai <nalin@redhat.com>
We have a lot of checks for container state scattered throughout
libpod. Many of these need to ensure the container is in one of a
given set of states so an operation may safely proceed.
Previously there was no set way of doing this, so we'd use unique
boolean logic for each one. Introduce a helper to standardize
state checks.
Note that this is only intended to replace checks for multiple
states. A simple check for one state (ContainerStateRunning, for
example) should remain a straight equality, and not use this new
helper.
Signed-off-by: Matthew Heon <mheon@redhat.com>
For future work, we need multiple implementations of the OCI
runtime, not just a Conmon-wrapped runtime matching the runc CLI.
As part of this, do some refactoring on the interface for exec
(move to a struct, not a massive list of arguments). Also, add
'all' support to Kill and Stop (supported by runc and used a bit
internally for removing containers).
Signed-off-by: Matthew Heon <matthew.heon@pm.me>
This requires updating all import paths throughout, and a matching
buildah update to interoperate.
I can't figure out the reason for go.mod tracking
github.com/containers/image v3.0.2+incompatible // indirect
((go mod graph) lists it as a direct dependency of libpod, but
(go list -json -m all) lists it as an indirect dependency),
but at least looking at the vendor subdirectory, it doesn't seem
to be actually used in the built binaries.
Signed-off-by: Miloslav Trmač <mitr@redhat.com>
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>
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>
Instead of only tracking that a container is restored from
a checkpoint locally in runtime_ctr.go this adds a flag to the
Container structure.
Upcoming patches to correctly label the root file-system mount-point
need also to know if a container is restored from a checkpoint.
Instead of passing a parameter around a lot of functions, this
adds that information to the Container structure.
Signed-off-by: Adrian Reber <areber@redhat.com>
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>
We're no longer using either of these JSON libraries, dropped
them in favor of jsoniter. We can't completely remove ffjson as
c/storage uses it and can't easily migrate, but we can make sure
that libpod itself isn't doing anything with them anymore.
Signed-off-by: Matthew Heon <matthew.heon@pm.me>
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>
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>
All IDs in libpod are stored as a full container ID. We can get a
container by full ID faster with GetContainer (which directly
retrieves) than LookupContainer (which finds a match, then
retrieves). No reason to use Lookup when we have full IDs present
and available.
Signed-off-by: Matthew Heon <matthew.heon@pm.me>
We were never using it. It's actually a potentially quite sizable
field (very expensive to decode an array of structs!). Removing
it should do no harm.
Signed-off-by: Matthew Heon <matthew.heon@pm.me>
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>
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>
We have a very high performance JSON library that doesn't need to
perform code generation. Let's use it instead of our questionably
performant, reflection-dependent deep copy library.
Most changes because some functions can now return errors.
Also converts cmd/podman to use jsoniter, instead of pkg/json,
for increased performance.
Signed-off-by: Matthew Heon <matthew.heon@pm.me>
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>
integration of healthcheck into create and run as well as inspect.
healthcheck enhancements are as follows:
* add the following options to create|run so that non-docker images can
define healthchecks at the container level.
* --healthcheck-command
* --healthcheck-retries
* --healthcheck-interval
* --healthcheck-start-period
* podman create|run --healthcheck-command=none disables healthcheck as
described by an image.
* the healthcheck itself and the healthcheck "history" can now be
observed in podman inspect
* added the wiring for healthcheck history which logs the health history
of the container, the current failed streak attempts, and log entries
for the last five attempts which themselves have start and stop times,
result, and a 500 character truncated (if needed) log of stderr/stdout.
The timings themselves are not implemented in this PR but will be in
future enablement (i.e. next).
Signed-off-by: baude <bbaude@redhat.com>
Add the ability to manually run a container's healthcheck command.
This is only the first phase of implementing the healthcheck.
Subsequent pull requests will deal with the exposing the results and
history of healthchecks as well as the scheduling.
Signed-off-by: baude <bbaude@redhat.com>
iFix builtin volumes to work with podman volume
Currently builtin volumes are not recored in podman volumes when
they are created automatically. This patch fixes this.
Remove container volumes when requested
Currently the --volume option on podman remove does nothing.
This will implement the changes needed to remove the volumes
if the user requests it.
When removing a volume make sure that no container uses the volume.
Signed-off-by: Daniel J Walsh dwalsh@redhat.com
Signed-off-by: Daniel J Walsh <dwalsh@redhat.com>
in cases where a container is part of a network namespace, we should
show the network namespace's ports when dealing with ports. this
impacts ps, kube, and port.
fixes: #846
Signed-off-by: baude <bbaude@redhat.com>
We try to keep c.config immutable, but Go doesn't really agree
with me that things other than strings and ints can be immutable,
so occasionally things like this slip through.
When unmarshalling the OCI spec from disk, do it into a separate
struct, to ensure we don't make lasting modifications to the
spec in the Container struct (which could affect container
restart).
Signed-off-by: Matthew Heon <matthew.heon@pm.me>
Apply the default AppArmor profile at container initialization to cover
all possible code paths (i.e., podman-{start,run}) before executing the
runtime. This allows moving most of the logic into pkg/apparmor.
Also make the loading and application of the default AppArmor profile
versio-indepenent by checking for the `libpod-default-` prefix and
over-writing the profile in the run-time spec if needed.
The intitial run-time spec of the container differs a bit from the
applied one when having started the container, which results in
displaying a potentially outdated AppArmor profile when inspecting
a container. To fix that, load the container config from the file
system if present and use it to display the data.
Fixes: #2107
Signed-off-by: Valentin Rothberg <rothberg@redhat.com>
The initial implementation to request the same IP address for a
container during a restore was based on environment variables
influencing CNI.
With this commit the IP address selection switches to Podman's internal
static IP API.
This commit does a comment change in libpod/container_easyjson.go to
avoid unnecessary re-generation of libpod/container_easyjson.go during
build as this fails in CI. The reason for this is that make sees that
libpod/container_easyjson.go needs to be re-created. The commit,
however, only changes a part of libpod/container.go which is marked as
'ffjson: skip'.
Signed-off-by: Adrian Reber <areber@redhat.com>
During an earlier bugfix, we swapped all instances of
ContainerConfig to Config, which was meant to fix some data we
were returning from Inspect. This unfortunately also renamed a
libpod internal struct for container configs. Undo the rename
here.
Signed-off-by: Matthew Heon <matthew.heon@pm.me>
