New hack/xref-helpmsgs-manpages script, added to CI 'gate'
task, runs 'podman [subcommand] --help' and cross-references
against man pages in docs/source/markdown/podman*.1.md
See #5453 and #5460 for instances of the problems the
script has found.
The careful reader will find an alarming number of special-case
bypasses. These are a tradeoff I am making: to get perfect
coverage with no handwaving, it would be necessary to make
drastic changes to some man pages, and I believe those would
be counterproductive.
Signed-off-by: Ed Santiago <santiago@redhat.com>
This produces detailed information about the configuration of an
exec session in a format suitable for the new HTTP API.
Signed-off-by: Matthew Heon <matthew.heon@pm.me>
As part of the rework of exec sessions, we need to address them
independently of containers. In the new API, we need to be able
to fetch them by their ID, regardless of what container they are
associated with. Unfortunately, our existing exec sessions are
tied to individual containers; there's no way to tell what
container a session belongs to and retrieve it without getting
every exec session for every container.
This adds a pointer to the container an exec session is
associated with to the database. The sessions themselves are
still stored in the container.
Exec-related APIs have been restructured to work with the new
database representation. The originally monolithic API has been
split into a number of smaller calls to allow more fine-grained
control of lifecycle. Support for legacy exec sessions has been
retained, but in a deprecated fashion; we should remove this in
a few releases.
Signed-off-by: Matthew Heon <matthew.heon@pm.me>
As part of the rework of exec sessions, we want to split Create
and Start - and, as a result, we need to keep everything needed
to start exec sessions in the struct, not just the bare minimum
for tracking running ones.
Signed-off-by: Matthew Heon <matthew.heon@pm.me>
Refactored current filter pods flow through the shared pod functions
so filter pod functionalities can be shared between api and cmd.
Signed-off-by: Sujil02 <sushah@redhat.com>
this is a temporary fix for the flake that has been troubling us. once conmon is in fedora 30 and 31 stable, we can remove this fix. the images will just need to be rebuilt.
Signed-off-by: Brent Baude <bbaude@redhat.com>
Add support to auto-update containers running in systemd units as
generated with `podman generate systemd --new`.
`podman auto-update` looks up containers with a specified
"io.containers.autoupdate" label (i.e., the auto-update policy).
If the label is present and set to "image", Podman reaches out to the
corresponding registry to check if the image has been updated. We
consider an image to be updated if the digest in the local storage is
different than the one of the remote image. If an image must be
updated, Podman pulls it down and restarts the container. Note that the
restarting sequence relies on systemd.
At container-creation time, Podman looks up the "PODMAN_SYSTEMD_UNIT"
environment variables and stores it verbatim in the container's label.
This variable is now set by all systemd units generated by
`podman-generate-systemd` and is set to `%n` (i.e., the name of systemd
unit starting the container). This data is then being used in the
auto-update sequence to instruct systemd (via DBUS) to restart the unit
and hence to restart the container.
Note that this implementation of auto-updates relies on systemd and
requires a fully-qualified image reference to be used to create the
container. This enforcement is necessary to know which image to
actually check and pull. If we used an image ID, we would not know
which image to check/pull anymore.
Fixes: #3575
Signed-off-by: Valentin Rothberg <rothberg@redhat.com>
Move the dbus-connection code from libpod's healthcheck to pkg/systemd
to allow for sharing the logic. Needed for the auto-updates work.
Signed-off-by: Valentin Rothberg <rothberg@redhat.com>
make clearer that the warning could also happen because the logger is
set to use systemd.
Closes: https://github.com/containers/libpod/issues/5443
Signed-off-by: Giuseppe Scrivano <gscrivan@redhat.com>
1) 'podman system info' (in logcollector): has been silently
failing in special_testing_rootless, with:
logcollector.sh: line 16: podman: command not found
Use ./bin/podman instead of just podman; this is probably
the right thing to do in the general case anyway
2) logformatter: highlight 'panic:', seen in bindings test:
https://storage.googleapis.com/cirrus-ci-5385732420009984-fcae48/artifacts/containers/libpod/6693715108429824/html/integration_test.log.html
3) logformatter: handle Unicode bullet in front of 'Running',
seen in bindings test.
4) logformatter: turn down contrast on BATS 'ok' results,
for legibility
Signed-off-by: Ed Santiago <santiago@redhat.com>
add endpoints for create, add, remove, inspect, and push. this allows manifests to be managed through the restful interfaces.
also added go-bindings and tests
Signed-off-by: Brent Baude <bbaude@redhat.com>
when building images, we can now add the os and arch of the image using overrides from the commandline. the commandline options set sane defaults so we use those as well.
Fixes: #5503
Signed-off-by: Brent Baude <bbaude@redhat.com>
the podman generated systemd service file has `Type=forking` service,
so the command after `ExecStart=` should not run in front.
if someone created a container and has the detach(`-d`) param missing
like this
```
podman create --name ngxdemo -P nginxdemos/hello
```
and generate the file with `--new` param:
```
podman generate systemd --name --new ngxdemo
```
because `podman run xxx` has no `-d` param,
so the container is not run in background and nerver exit.
and systemd will fail to start the service:
```
sudo systemctl start container-ngxdemo.service
Job for container-ngxdemo.service failed because a timeout was exceeded.
See "systemctl status container-ngxdemo.service" and "journalctl -xe" for details.
```
Signed-off-by: 荒野無燈 <ttys3@outlook.com>
due to a change in golang-1.14 and it's changes to make go funcs with tight loops preemptive, signals are now getting "through" that never were before.
From the golang-1.14 announce:
Goroutines are now asynchronously preemptible. As a result, loops without function calls no longer potentially deadlock the scheduler or significantly delay garbage collection. This is supported on all platforms except windows/arm, darwin/arm, js/wasm, and plan9/*.
A consequence of the implementation of preemption is that on Unix systems, including Linux and macOS systems, programs built with Go 1.14 will receive more signals than programs built with earlier releases. This means that programs that use packages like syscall or golang.org/x/sys/unix will see more slow system calls fail with EINTR errors. Those programs will have to handle those errors in some way, most likely looping to try the system call again. For more information about this see man 7 signal for Linux systems or similar documentation for other systems.
Fixes#5483
Signed-off-by: Brent Baude <bbaude@redhat.com>
reworking binding and endpoint to actually work. added documentation in swagger for and various return code possibilities. add a good start on tests though we need some other container functions not yet implemented for that.
Signed-off-by: Brent Baude <bbaude@redhat.com>
