The linter ensures a common code style.
- use switch/case instead of else if
- use if instead of switch/case for single case statement
- add space between comment and text
- detect the use of defer with os.Exit()
- use short form var += "..." instead of var = var + "..."
- detect problems with append()
```
newSlice := append(orgSlice, val)
```
This could lead to nasty bugs because the orgSlice will be changed in
place if it has enough capacity too hold the new elements. Thus we
newSlice might not be a copy.
Of course most of the changes are just cosmetic and do not cause any
logic errors but I think it is a good idea to enforce a common style.
This should help maintainability.
Signed-off-by: Paul Holzinger <pholzing@redhat.com>
When podman gets an error it prints out "Error: " before
printing the error string. If the error message starts with
error, we end up with
Error: error ...
This PR Removes all of these stutters.
logrus.Error() also prints out that this is an error, so no need for the
error stutter.
[NO NEW TESTS NEEDED]
Signed-off-by: Daniel J Walsh <dwalsh@redhat.com>
Still an unknown number remains but I am running out of patience.
Adding dots is not the best use of my time.
Signed-off-by: Valentin Rothberg <vrothberg@redhat.com>
The calculate the percentage we need floating point numbers. The current
code however casted the result of reclaimable/size to an int first.
Casting to an int in go will just discard the decimal points, thus the
result was either 0 or 1 so if multiplied by 100 it would show up as 0%
or 100%.
To fix this we have to multiply by 100 first before casting the result
to an int. Also add a check for div by zero which results in NaN and use
math.Round() to correctly round a number.
Ref #13516
Signed-off-by: Paul Holzinger <pholzing@redhat.com>
When podman is build without git commit information it will print a
empty newline instead. This is undesirable and a regression introduced
in commit 7d22cc88ef.
To test build podman with `go build -mod=vendor -o bin/podman ./cmd/podman`
and check the output of bin/podman version with and without this commit.
[NO NEW TESTS NEEDED]
Signed-off-by: Paul Holzinger <pholzing@redhat.com>
podman system prune should also remove all networks. When we want to
users to migrate to the new network stack we recommend to run podman
system reset. However this did not remove networks and if there were
still networks around we would continue to use cni since this was
considered an old system.
There is one exception for the default network. It should not be removed
since this could cause other issues when it no longer exists. The
network backend detection logic ignores the default network so this is
fine.
Signed-off-by: Paul Holzinger <pholzing@redhat.com>
[NO NEW TESTS NEEDED]
Support better compatibility output for podman system commands
* Format and content of output from podman version changed to
be more compatible
See #10974
Depends on containers/common#831
Signed-off-by: Jhon Honce <jhonce@redhat.com>
Leverage new report.Formatter allowing better compatibility from
podman command output.
Follow on PR's will cover containers, etc.
See #10974
Signed-off-by: Jhon Honce <jhonce@redhat.com>
Print out the headers even if the system connection list
is empty to match the behavior of other list commands.
Signed-off-by: Urvashi Mohnani <umohnani@redhat.com>
Since we want to use the rootless cni ns also for netavark we should
pick a more generic name. The name is now "rootless network namespace"
or short "rootless netns".
The rename might cause some issues after the update but when the
all containers are restarted or the host is rebooted it should work
correctly.
Signed-off-by: Paul Holzinger <pholzing@redhat.com>
This is a cosmetic change. The help message for `podman version` is in
title case whereas all other command help messages are not in title
case. This stands out as inconsistent when looking at the output of
`podman help`.
Signed-off-by: Praveen Kumar <praveen+git@kumar.in>
So far, the infra containers of pods required pulling down an image
rendering pods not usable in disconnected environments. Instead, build
an image locally which uses local pause binary.
Fixes: #10354
Signed-off-by: Valentin Rothberg <rothberg@redhat.com>
Stop using "*" to indicate default. Add default field to make
it more obvios and the json field more machine usable.
Fixes: https://github.com/containers/podman/issues/12019
Signed-off-by: Daniel J Walsh <dwalsh@redhat.com>
* Increase timeout for tests to 10s
* To aid in debugging add PID to shutdown package logging
* Added new message for forced service shutdown
* Always wait for HTTP server to shutdown, duration of 0 not friendly
to clients
Note: The log event
"IdleTracker: StateClosed transition by connection marked un-managed"
denotes a TCP connection has been initiated but no HTTP request was sent.
And is expected during these tests.
Fixes#11921
Signed-off-by: Jhon Honce <jhonce@redhat.com>
* Refactor sidecar HTTP service for /debug/pprof endpoints to use a TCP
address given via new podman system service --pprof-address flag
* Allow same URL parsing in "system service" as bindings/connection.go
* Refactor NewServerWithSettings() to use entities.ServiceOptions
in place of deleted server.Options
* Updated godoc for impacted functions and types
* Fixed API service Shutdown() to do an orderly shutdown when
terminated and running with --time=0
Signed-off-by: Jhon Honce <jhonce@redhat.com>
Adding dial-stdio CLI cmd
Signed-off-by: Jake Parks <jamesparks10@gmail.com>
Made dial-stdio URI configurable
Slight refactors
Signed-off-by: Jake Parks <jamesparks10@gmail.com>
Added simple test for existence of `podman system dial-stdio` command
Fix 'system dial-stdio' integration tests
Changed link in comment to permalink
Standardize on no-trunc through the code.
Alias notruncate where necessary.
Standardize on the man page display of no-trunc.
Fixes: https://github.com/containers/podman/issues/8941
Signed-off-by: Daniel J Walsh <dwalsh@redhat.com>
In case the command inside the podman unshare env failed podman unshare
always exits with 125 and prints `Error: exit status 125`. This is a
bad user experience and makes it difficult to use in scripts which could
expect certain exit codes.
This commit makes sure podman unshare uses the same exit code as the
command and does not print the useless `exit status X` message.
Also to match podman run/exec it should return 126 for EPERM
and 127 for ENOENT.
Signed-off-by: Paul Holzinger <pholzing@redhat.com>
added functionality for image secure copying from local to remote.
Also moved system connection add code around a bit so functions within that file
can be used by scp.
Signed-off-by: cdoern <cdoern@redhat.com>
add a new annotation for the "system migrate" command to not move the
pause process to a separate cgroup.
The operation is not needed since "system migrate" destroys the pause
process, so there won't be any process left to move to a cgroup.
[NO TESTS NEEDED]
Signed-off-by: Giuseppe Scrivano <gscrivan@redhat.com>
Add a new service reaper package. Podman currently does not reap all
child processes. The slirp4netns and rootlesskit processes are not
reaped. The is not a problem for local podman since the podman process
dies before the other processes and then init will reap them for us.
However with podman system service it is possible that the podman
process is still alive after slirp died. In this case podman has to reap
it or the slirp process will be a zombie until the service is stopped.
The service reaper will listen in an extra goroutine on SIGCHLD. Once it
receives this signal it will try to reap all pids that were added with
`AddPID()`. While I would like to just reap all children this is not
possible because many parts of the code use `os/exec` with `cmd.Wait()`.
If we reap before `cmd.Wait()` things can break, so reaping everything
is not an option.
[NO TESTS NEEDED]
Fixes#9777
Signed-off-by: Paul Holzinger <pholzing@redhat.com>
Sort system connection ls by name, making the output deterministic. Previously, we were just iterating through a map, which caused CI flakes.
Signed-off-by: Ashley Cui <acui@redhat.com>
Refactor podman commands that have drifted from using
c/common report pkg. Report pkg is needed to implement
go template functions.
Removed obsolete code from podman which exists in c/common.
Latest template library added default newlines and method to
remove them. Incorporated needed changes in c/common PR below.
Depends on https://github.com/containers/common/pull/624
Fixes https://bugzilla.redhat.com/show_bug.cgi?id=1855983
Signed-off-by: Jhon Honce <jhonce@redhat.com>
[NO TESTS NEEDED]
This commit cleans up two issues:
* Most commands support all EngineModes so default to that. Let
outlayers declare their intent.
* Use cobra.Annotations to set supported EngineMode. This simplies
instantiating commands as there is now one method to communicate a
commands requirements rather than two.
* Combined aliased commands into one file
* Fixed aliased commands where Args field did not match
* Updated examples in README.md for writing commands
* Remove redundant flag DisableFlagsInUseLine in cobra.Command
initialization.
Signed-off-by: Jhon Honce <jhonce@redhat.com>
Developers asked for a deterministic field to verify if podman is
running via API or linked directly to libpod library.
$ podman info --format '{{.Host.ServiceIsRemote}}'
false
$ podman-remote info --format '{{.Host.ServiceIsRemote}}'
true
$ podman --remote info --format '{{.Host.ServiceIsRemote}}'
true
* docs/conf.py formatted via black
Signed-off-by: Jhon Honce <jhonce@redhat.com>
The --format flags accepts go template strings. I use this often but I
consistently forget the field names. This commit adds a way to provide
shell completion for the --format flag. It works by automatically
receiving the field names with the reflect package from the given
struct. This requires almost no maintenance since this ensures that we
always use the correct field names. This also works for nested structs.
```
$ podman ps --format "{{.P"
{{.Pid}} {{.PIDNS}} {{.Pod}} {{.PodName}} {{.Ports}}
```
NOTE: This only works when you use quotes otherwise the shell does not
provide completions. Also this does not work for fish at the moment.
Signed-off-by: Paul Holzinger <paul.holzinger@web.de>
Add a new --rootless-cni option to podman unshare to also join the
rootless-cni network namespace. This is useful if you want to connect
to a rootless container via IP address. This is only possible from the
rootless-cni namespace and not from the host namespace. This option also
helps to debug problems in the rootless-cni namespace.
Signed-off-by: Paul Holzinger <paul.holzinger@web.de>
if LISTEN_FDS is specified by systemd, we need to use the first fd
after the std files (so fd=3) to read from the activation socket
instead of manually opening the UNIX socket.
[NO TESTS NEEDED]
Closes: https://github.com/containers/podman/issues/9251
Signed-off-by: Giuseppe Scrivano <gscrivan@redhat.com>
Paul Holzinger