This is very similar to commit 3280da0500, we cannot check the state
then unlock to then lock again and do the action. Everything must
happen under one lock. To fix this move the code into the HTTPAttach
function in libpod. The locking here is a bit weird because attach
blocks for the lifetime of attach which can be very long so we must
unlock before performing the attach.
Fixes#23757
Signed-off-by: Paul Holzinger <pholzing@redhat.com>
The new golangci-lint version 1.60.1 has problems with typecheck when
linting remote files. We have certain pakcages that should never be
inlcuded in remote but the typecheck tries to compile all of them but
this never works and it seems to ignore the exclude files we gave it.
To fix this the proper way is to mark all packages we only use locally
with !remote tags. This is a bit ugly but more correct. I also moved the
DecodeChanges() code around as it is called from the client so the
handles package which should only be remote doesn't really fit anyway.
Signed-off-by: Paul Holzinger <pholzing@redhat.com>
Moving from Go module v4 to v5 prepares us for public releases.
Move done using gomove [1] as with the v3 and v4 moves.
[1] https://github.com/KSubedi/gomove
Signed-off-by: Matt Heon <mheon@redhat.com>
Podman adds an Error: to every error message. So starting an error
message with "error" ends up being reported to the user as
Error: error ...
This patch removes the stutter.
Also ioutil.ReadFile errors report the Path, so wrapping the err message
with the path causes a stutter.
Signed-off-by: Daniel J Walsh <dwalsh@redhat.com>
We now use the golang error wrapping format specifier `%w` instead of
the deprecated github.com/pkg/errors package.
[NO NEW TESTS NEEDED]
Signed-off-by: Sascha Grunert <sgrunert@redhat.com>
There's a potential race condition where we attempt to attach to
a container immediately after it's been stopped, but before the
cleanup process has run on it. The existing code doesn't allow an
attach to containers in the Stopped state (cleanup process has
not run) but does allow an attach to containers in the Exited
state (cleanup process has run). This doesn't make very much
sense and there's no technical reason to restrict attach to only
Exited containers, so allow attaching to Stopped containers.
[NO NEW TESTS NEEDED] Testing this is very racy - we need to get
in before the cleanup process runs, which isn't really
deterministic when we're invoked from a script - like the CI
tests.
Signed-off-by: Matthew Heon <mheon@redhat.com>
This commit removes error message string from utils.Error in pkg/api.
Param was not used inside a function for quite a long time
[NO NEW TESTS NEEDED]
Signed-off-by: Jakub Guzik <jguzik@redhat.com>
* To aid in debugging log API request and response bodies at trace
level. Events can be correlated using the X-Reference-Id.
* Server now echos X-Reference-Id from client if set, otherwise
generates an unique id.
* Move logic for X-Reference-Id into middleware
* Change uses of Header.Add() to Set() when setting Content-Type
* Log API operations in Apache format using gorilla middleware
* Port server code to use BaseContext and ConnContext
Fixes#10053
Signed-off-by: Jhon Honce <jhonce@redhat.com>
We missed bumping the go module, so let's do it now :)
* Automated go code with github.com/sirkon/go-imports-rename
* Manually via `vgrep podman/v2` the rest
Signed-off-by: Valentin Rothberg <rothberg@redhat.com>
- Fixes issue where remote attach and exec only signaled the IdleTracker
on errors. Needs to done anytime after connection has been hijacked
- Fixes trying to send multiple http status codes to client
- Changes pprof and API server shutdowns to run in parallel
- Changes shutdown to run in sync.Once block
Signed-off-by: Jhon Honce <jhonce@redhat.com>
* Remove stutter naming for package and types
* Stop treating StateIdle the same as StateClosed, rather transitions to
StateIdle will keep API timeout window open
* Remove redundate code
Fixes#7826
Signed-off-by: Jhon Honce <jhonce@redhat.com>
Our previous flow was to perform a hijack before passing a
connection into Libpod, and then Libpod would attach to the
container's attach socket and begin forwarding traffic.
A problem emerges: we write the attach header as soon as the
attach complete. As soon as we write the header, the client
assumes that all is ready, and sends a Start request. This Start
may be processed *before* we successfully finish attaching,
causing us to lose output.
The solution is to handle hijacking inside Libpod. Unfortunately,
this requires a downright extensive refactor of the Attach and
HTTP Exec StartAndAttach code. I think the result is an
improvement in some places (a lot more errors will be handled
with a proper HTTP error code, before the hijack occurs) but
other parts, like the relocation of printing container logs, are
just *bad*. Still, we need this fixed now to get CI back into
good shape...
Fixes#7195
Signed-off-by: Matthew Heon <matthew.heon@pm.me>
This patch fixes connection counters for v2 endpoints
Idletracker was moved to a new package to prevent package cycle.
Hijacking code still remains in wrong place and should be moved
later to isolated package
Signed-off-by: Sami Korhonen <skorhone@gmail.com>
After this patch v2 hijacking endpoints, exec/start and
containers/attach follow rfc 7230 specification.
Connection will only be upgraded, if client specifies upgrade
headers:
For tcp connections:
Connection: Upgrade
Upgrade: tcp
For unix socket connections:
Connection: Upgrade
Upgrade: sock
There are currently no checks if upgrade type actually matches with
available protocols. Implementation just protocol that client
requested
Signed-off-by: Sami Korhonen <skorhone@gmail.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>
As part of APIv2 Attach, we need to be able to attach to freshly
created containers (in ContainerStateConfigured). This isn't
something Libpod is interested in supporting, so we use Init() to
get the container into ContainerStateCreated, in which attach is
possible. Problem: Init() will fail if dependencies are not
started, so a fresh container in a fresh pod will fail. The
simplest solution is to extend the existing recursive start code
from Start() to Init(), allowing dependency containers to be
started when we initialize the container (optionally, controlled
via bool).
Also, update some comments in container_api.go to make it more
clear how some of our major API calls work.
Fixes#6646
Signed-off-by: Matthew Heon <mheon@redhat.com>
* Add support for /exec/{id}/resize
* Add support for ErrSessionNotFound
* Resize container TTY as stdin changes size
* Refactor all resize functions into one handler
Signed-off-by: Jhon Honce <jhonce@redhat.com>
This is still very early not not well tested, and missing resize
capability, but it does provide the first bits of exec.
Signed-off-by: Matthew Heon <mheon@redhat.com>
* Add ErrLostSync to report lost of sync when de-mux'ing stream
* Add logus.SetLevel(logrus.DebugLevel) when `go test -v` given
* Add context to debugging messages
Signed-off-by: Jhon Honce <jhonce@redhat.com>
A few major fixes here:
- Support for attaching to Configured containers, to match Docker
behavior.
- Support for stream parameter has been improved (we now properly
handle cases where it is not set).
- Initial support for logs parameter has been added.
- Setting attach streams when the container has a terminal is now
supported.
- Errors are properly reported once the hijack has begun.
Signed-off-by: Matthew Heon <mheon@redhat.com>
Paul Holzinger
Matt Heon
Matej Vasek
Daniel J Walsh
Sascha Grunert
Jakub Guzik
Valentin Rothberg
Jhon Honce
Matthew Heon
Korhonen Sami (Samlink)