Our users are missing certain warning messages that would
make debugging issues with Podman easier.
For example if you do a podman build with a Containerfile
that contains the SHELL directive, the Derective is silently
ignored.
If you run with the log-level warn you get a warning message explainging
what happened.
$ podman build --no-cache -f /tmp/Containerfile1 /tmp/
STEP 1: FROM ubi8
STEP 2: SHELL ["/bin/bash", "-c"]
STEP 3: COMMIT
--> 7a207be102a
7a207be102aa8993eceb32802e6ceb9d2603ceed9dee0fee341df63e6300882e
$ podman --log-level=warn build --no-cache -f /tmp/Containerfile1 /tmp/
STEP 1: FROM ubi8
STEP 2: SHELL ["/bin/bash", "-c"]
STEP 3: COMMIT
WARN[0000] SHELL is not supported for OCI image format, [/bin/bash -c] will be ignored. Must use `docker` format
--> 7bd96fd25b9
7bd96fd25b9f755d8a045e31187e406cf889dcf3799357ec906e90767613e95f
These messages will no longer be lost, when we default to WARNing level.
Signed-off-by: Daniel J Walsh <dwalsh@redhat.com>
Allow users to specify unbindable on volume command line
Switch internal mounts to rprivate to help prevent leaks.
Signed-off-by: Daniel J Walsh <dwalsh@redhat.com>
Add a new "image" mount type to `--mount`. The source of the mount is
the name or ID of an image. The destination is the path inside the
container. Image mounts further support an optional `rw,readwrite`
parameter which if set to "true" will yield the mount writable inside
the container. Note that no changes are propagated to the image mount
on the host (which in any case is read only).
Mounts are overlay mounts. To support read-only overlay mounts, vendor
a non-release version of Buildah.
Signed-off-by: Valentin Rothberg <rothberg@redhat.com>
When we create a container, we assign a cgroup parent based on
the current cgroup manager in use. This parent is only usable
with the cgroup manager the container is created with, so if the
default cgroup manager is later changed or overridden, the
container will not be able to start.
To solve this, store the cgroup manager that created the
container in container configuration, so we can guarantee a
container with a systemd cgroup parent will always be started
with systemd cgroups.
Unfortunately, this is very difficult to test in CI, due to the
fact that we hard-code cgroup manager on all invocations of
Podman in CI.
Fixes#7830
Signed-off-by: Matthew Heon <matthew.heon@pm.me>
it allows to manually tweak the configuration for cgroup v2.
we will expose some of the options in future as single
options (e.g. the new memory knobs), but for now add the more generic
--cgroup-conf mechanism for maximum control on the cgroup
configuration.
OCI specs change: https://github.com/opencontainers/runtime-spec/pull/1040
Requires: https://github.com/containers/crun/pull/459
Signed-off-by: Giuseppe Scrivano <gscrivan@redhat.com>
--umask sets the umask inside the container
Defaults to 0022
Co-authored-by: Daniel J Walsh <dwalsh@redhat.com>
Signed-off-by: Ashley Cui <acui@redhat.com>
This allows us to determine if the container auto-detected that
systemd was in use, and correctly activated systemd integration.
Use this to wire up some integration tests to verify that systemd
integration is working properly.
Signed-off-by: Matthew Heon <matthew.heon@pm.me>
We had a field for this in the inspect data, but it was never
being populated. Because of this, `podman pod inspect` stopped
showing port bindings (and other infra container settings). Add
code to populate the infra container inspect data, and add a test
to ensure we don't regress again.
Signed-off-by: Matthew Heon <mheon@redhat.com>
With the advent of Podman 2.0.0 we crossed the magical barrier of go
modules. While we were able to continue importing all packages inside
of the project, the project could not be vendored anymore from the
outside.
Move the go module to new major version and change all imports to
`github.com/containers/libpod/v2`. The renaming of the imports
was done via `gomove` [1].
[1] https://github.com/KSubedi/gomove
Signed-off-by: Valentin Rothberg <rothberg@redhat.com>
--tz flag sets timezone inside container
Can be set to IANA timezone as well as `local` to match host machine
Signed-off-by: Ashley Cui <acui@redhat.com>
I realized that setting NetworkMode to private when we are making
a network namespace but not configuring it with CNI or Slirp is
wrong; that's considered `--net=none` not `--net=private`. At the
same time, realized that we actually store whether Slirp is in
use, so we can be more specific than just "default" and instead
say slirp4netns or bridge.
Signed-off-by: Matthew Heon <mheon@redhat.com>
This one was a massive pain to track down.
The original symptom was an error message from rootless Podman
trying to make a container in a pod. I unfortunately did not look
at the error message closely enough to realize that the namespace
in question was the cgroup namespace (the reproducer pod was
explicitly set to only share the network namespace), else this
would have been quite a bit shorter.
I spent considerable effort trying to track down differences
between the inspect output of the two containers, and when that
failed I was forced to resort to diffing the OCI specs. That
finally proved fruitful, and I was able to determine what should
have been obvious all along: the container was joining the cgroup
namespace of the infra container when it really ought not to
have.
From there, I discovered a variable collision in pod config. The
UsePodCgroup variable means "create a parent cgroup for the pod
and join containers in the pod to it". Unfortunately, it is very
similar to UsePodUTS, UsePodNet, etc, which mean "the pod shares
this namespace", so an accessor was accidentally added for it
that indicated the pod shared the cgroup namespace when it really
did not. Once I realized that, it was a quick fix - add a bool to
the pod's configuration to indicate whether the cgroup ns was
shared (distinct from UsePodCgroup) and use that for the
accessor.
Also included are fixes for `podman inspect` and
`podman pod inspect` that fix them to actually display the state
of the cgroup namespace (for container inspect) and what
namespaces are shared (for pod inspect). Either of those would
have made tracking this down considerably quicker.
Fixes#6149
Signed-off-by: Matthew Heon <mheon@redhat.com>
Add the `podman generate kube` and `podman play kube` command. The code
has largely been copied from Podman v1 but restructured to not leak the
K8s core API into the (remote) client.
Both commands are added in the same commit to allow for enabling the
tests at the same time.
Move some exports from `cmd/podman/common` to the appropriate places in
the backend to avoid circular dependencies.
Move definitions of label annotations to `libpod/define` and set the
security-opt labels in the frontend to make kube tests pass.
Implement rest endpoints, bindings and the tunnel interface.
Signed-off-by: Valentin Rothberg <rothberg@redhat.com>
cpu-share is 0 in docker inspect, see
https://github.com/moby/moby/issues/35452
This reverts commit eb229d526c04f17ca8b7e65abba745fd5b465a6c.
Signed-off-by: Sagi Shnaidman <sshnaidm@redhat.com>
When inspecting containers, info on CNI networks added to the
container by name (e.g. --net=name1) should be displayed
separately from the configuration of the default network, in a
separate map called Networks.
This patch adds this separation, improving our Docker
compatibility and also adding the ability to see if a container
has more than one IPv4 and IPv6 address and more than one MAC
address.
Fixes#4907
Signed-off-by: Matthew Heon <matthew.heon@pm.me>
This is purely a display change - we weren't initializing the
default value to display for the CPUShares field, which defaults
to 1024.
Fixes#4822
Signed-off-by: Matthew Heon <mheon@redhat.com>
`gocritic` is a powerful linter that helps in preventing certain kinds
of errors as well as enforcing a coding style.
Signed-off-by: Valentin Rothberg <rothberg@redhat.com>
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>
Currently, if a user requests the size on a container (inspect --size -t container),
the SizeRw does not show up if the value is 0. It's because InspectContainerData is
defined as int64 and there is an omit when empty.
We do want to display it even if the value is empty. I have changed the type of SizeRw to be a pointer to an int64 instead of an int64. It will allow us todistinguish the empty value to the missing value.
I updated the test "podman inspect container with size" to ensure we check thatSizeRw is displayed correctly.
Closes#4744
Signed-off-by: NevilleC <neville.cain@qonto.eu>
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>
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>
The json field is called `Image` while the go field is called `ImageID`,
tricking users into filtering for `Image` which ultimately results in an
error. Hence, rename the field to `Image` to align json and go.
To prevent podman users from regressing, rename `Image` to `ImageID` in
the specified filters. Add tests to prevent us from regressing. Note
that consumers of the go API that are using `ImageID` are regressing;
ultimately we consider it to be a bug fix.
Fixes: #4193
Signed-off-by: Valentin Rothberg <rothberg@redhat.com>
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>
Somehow this managed to slip through the cracks, but this is
definitely something inspect should print.
Signed-off-by: Matthew Heon <matthew.heon@pm.me>
clean up some final linter issues and add a make target for
golangci-lint. in addition, begin running the tests are part of the
gating tasks in cirrus ci.
we cannot fully shift over to the new linter until we fix the image on
the openshift side. for short term, we will use both
Signed-off-by: baude <bbaude@redhat.com>
We can infer no-new-privileges. For now, manually populate
seccomp (can't infer what file we sourced from) and
SELinux/Apparmor (hard to tell if they're enabled or not).
Signed-off-by: Matthew Heon <mheon@redhat.com>
When we first began writing Podman, we ran into a major issue
when implementing Inspect. Libpod deliberately does not tie its
internal data structures to Docker, and stores most information
about containers encoded within the OCI spec. However, Podman
must present a CLI compatible with Docker, which means it must
expose all the information in 'docker inspect' - most of which is
not contained in the OCI spec or libpod's Config struct.
Our solution at the time was the create artifact. We JSON'd the
complete CreateConfig (a parsed form of the CLI arguments to
'podman run') and stored it with the container, restoring it when
we needed to run commands that required the extra info.
Over the past month, I've been looking more at Inspect, and
refactored large portions of it into Libpod - generating them
from what we know about the OCI config and libpod's (now much
expanded, versus previously) container configuration. This path
comes close to completing the process, moving the last part of
inspect into libpod and removing the need for the create
artifact.
This improves libpod's compatability with non-Podman containers.
We no longer require an arbitrarily-formatted JSON blob to be
present to run inspect.
Fixes: #3500
Signed-off-by: Matthew Heon <matthew.heon@pm.me>
Specifically, we were needlessly doing a double lookup to find which config mounts were user volumes. Improve this by refactoring a bit of code from inspect
Signed-off-by: Peter Hunt <pehunt@redhat.com>
In Go templating, we use the names of fields, not the JSON struct
tags. To ensure templating works are expected, we need the two to
match.
Signed-off-by: Matthew Heon <mheon@redhat.com>
Go templating is incapable of dealing with pointers, so when we
moved to Docker compatible mounts JSON, we broke it. The solution
is to not use pointers in this part of inspect.
Signed-off-by: Matthew Heon <mheon@redhat.com>
