In this commit, we have done:
* modify the tranfer process from grpc::Hooks to oci::Hooks, so the code
can be more clean
* add more tests for create_runtime, create_container, start_container hooks
Signed-off-by: Yushuo <y-shuo@linux.alibaba.com>
StartContainer will be execute in guest container namespace in Kata.
The Hook Path of this kind of hook is also in guest container namespace.
StartContainer is executed after start operation is called, and it
should be executed before user-specific command is executed.
Fixes: #5787
Signed-off-by: Yushuo <y-shuo@linux.alibaba.com>
CreateContainer hook is one kind of OCI hook. In kata, it will be
executed after VM is started, before container is created, and after
CreateRuntime is executed.
The hook path of CreateContainer hook is in host runtime namespace, but
it will be executed in host vmm namespace.
Fixes: #5787
Signed-off-by: Yushuo <y-shuo@linux.alibaba.com>
According to the runtime OCI Spec, there can be some hook
operations in the lifecycle of the container. In these hook
operations, the runtime can execute some commands. There are different
points in time in the container lifecycle and different hook types
can be executed.
In this commit, we are now supporting 4 types of hooks(same in
runtime-go): Prestart hook, CreateRuntime hook, Poststart hook and
Poststop hook.
Fixes: #5787
Signed-off-by: Yushuo <y-shuo@linux.alibaba.com>
The logic to decide which cgroup driver is used is currently based on the
cgroup path that the host provides. This requires host and guest to use the
same cgroup driver. If the guest uses kata-agent as init, then systemd can't be
used as the cgroup driver. If the host requests a systemd cgroup, this
currently results in a rustjail panic:
thread 'tokio-runtime-worker' panicked at 'called `Result::unwrap()` on an `Err` value: I/O error: No such file or directory (os error 2)
Caused by:
No such file or directory (os error 2)', rustjail/src/cgroups/systemd/manager.rs:44:51
stack backtrace:
0: 0x7ff0fe77a793 - std::backtrace_rs::backtrace::libunwind::trace::h8c197fa9a679d134
at /rustc/69f9c33d71c871fc16ac445211281c6e7a340943/library/std/src/../../backtrace/src/backtrace/libunwind.rs:93:5
1: 0x7ff0fe77a793 - std::backtrace_rs::backtrace::trace_unsynchronized::h9ee19d58b6d5934a
at /rustc/69f9c33d71c871fc16ac445211281c6e7a340943/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
2: 0x7ff0fe77a793 - std::sys_common::backtrace::_print_fmt::h4badc450600fc417
at /rustc/69f9c33d71c871fc16ac445211281c6e7a340943/library/std/src/sys_common/backtrace.rs:65:5
3: 0x7ff0fe77a793 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::had334ddb529a2169
at /rustc/69f9c33d71c871fc16ac445211281c6e7a340943/library/std/src/sys_common/backtrace.rs:44:22
4: 0x7ff0fdce815e - core::fmt::write::h1aa7694f03e44db2
at /rustc/69f9c33d71c871fc16ac445211281c6e7a340943/library/core/src/fmt/mod.rs:1209:17
5: 0x7ff0fe74e0c4 - std::io::Write::write_fmt::h61b2bdc565be41b5
at /rustc/69f9c33d71c871fc16ac445211281c6e7a340943/library/std/src/io/mod.rs:1682:15
6: 0x7ff0fe77cd3f - std::sys_common::backtrace::_print::h4ec69798b72ff254
at /rustc/69f9c33d71c871fc16ac445211281c6e7a340943/library/std/src/sys_common/backtrace.rs:47:5
7: 0x7ff0fe77cd3f - std::sys_common::backtrace::print::h0e6c02048dec3c77
at /rustc/69f9c33d71c871fc16ac445211281c6e7a340943/library/std/src/sys_common/backtrace.rs:34:9
8: 0x7ff0fe77c93f - std::panicking::default_hook::{{closure}}::hcdb7e705dc37ea6e
at /rustc/69f9c33d71c871fc16ac445211281c6e7a340943/library/std/src/panicking.rs:267:22
9: 0x7ff0fe77d9b8 - std::panicking::default_hook::he03a933a0f01790f
at /rustc/69f9c33d71c871fc16ac445211281c6e7a340943/library/std/src/panicking.rs:286:9
10: 0x7ff0fe77d9b8 - std::panicking::rust_panic_with_hook::he26b680bfd953008
at /rustc/69f9c33d71c871fc16ac445211281c6e7a340943/library/std/src/panicking.rs:688:13
11: 0x7ff0fe77d482 - std::panicking::begin_panic_handler::{{closure}}::h559120d2dd1c6180
at /rustc/69f9c33d71c871fc16ac445211281c6e7a340943/library/std/src/panicking.rs:579:13
12: 0x7ff0fe77d3ec - std::sys_common::backtrace::__rust_end_short_backtrace::h36db621fc93b005a
at /rustc/69f9c33d71c871fc16ac445211281c6e7a340943/library/std/src/sys_common/backtrace.rs:137:18
13: 0x7ff0fe77d3c1 - rust_begin_unwind
at /rustc/69f9c33d71c871fc16ac445211281c6e7a340943/library/std/src/panicking.rs:575:5
14: 0x7ff0fda52ee2 - core::panicking::panic_fmt::he7679b415d25c5f4
at /rustc/69f9c33d71c871fc16ac445211281c6e7a340943/library/core/src/panicking.rs:65:14
15: 0x7ff0fda53182 - core::result::unwrap_failed::hb71caff146724b6b
at /rustc/69f9c33d71c871fc16ac445211281c6e7a340943/library/core/src/result.rs:1791:5
16: 0x7ff0fe5bd738 - <rustjail::cgroups::systemd::manager::Manager as rustjail::cgroups::Manager>::apply::hd46958d9d807d2ca
17: 0x7ff0fe606d80 - <rustjail::container::LinuxContainer as rustjail::container::BaseContainer>::start::{{closure}}::h1de806d91fcb878f
18: 0x7ff0fe604a76 - <core::future::from_generator::GenFuture<T> as core::future::future::Future>::poll::h1749c148adcc235f
19: 0x7ff0fdc0c992 - kata_agent::rpc::AgentService::do_create_container::{{closure}}::{{closure}}::hc1b87a15dfdf2f64
20: 0x7ff0fdb80ae4 - <core::future::from_generator::GenFuture<T> as core::future::future::Future>::poll::h846a8c9e4fb67707
21: 0x7ff0fe3bb816 - <core::future::from_generator::GenFuture<T> as core::future::future::Future>::poll::h53de16ff66ed3972
22: 0x7ff0fdb519cb - <core::future::from_generator::GenFuture<T> as core::future::future::Future>::poll::h1cbece980286c0f4
23: 0x7ff0fdf4019c - <tokio::future::poll_fn::PollFn<F> as core::future::future::Future>::poll::hc8e72d155feb8d1f
24: 0x7ff0fdfa5fd8 - tokio::loom::std::unsafe_cell::UnsafeCell<T>::with_mut::h0a407ffe2559449a
25: 0x7ff0fdf033a1 - tokio::runtime::task::raw::poll::h1045d9f1db9742de
26: 0x7ff0fe7a8ce2 - tokio::runtime::scheduler::multi_thread::worker::Context::run_task::h4924ae3464af7fbd
27: 0x7ff0fe7afb85 - tokio::runtime::task::raw::poll::h5c843be39646b833
28: 0x7ff0fe7a05ee - std::sys_common::backtrace::__rust_begin_short_backtrace::ha7777c55b98a9bd1
29: 0x7ff0fe7a9bdb - core::ops::function::FnOnce::call_once{{vtable.shim}}::h27ec83c953360cdd
30: 0x7ff0fe7801d5 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::hed812350c5aef7a8
at /rustc/69f9c33d71c871fc16ac445211281c6e7a340943/library/alloc/src/boxed.rs:1987:9
31: 0x7ff0fe7801d5 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::hc7df8e435a658960
at /rustc/69f9c33d71c871fc16ac445211281c6e7a340943/library/alloc/src/boxed.rs:1987:9
32: 0x7ff0fe7801d5 - std::sys::unix:🧵:Thread:🆕:thread_start::h575491a8a17dbb33
at /rustc/69f9c33d71c871fc16ac445211281c6e7a340943/library/std/src/sys/unix/thread.rs:108:17
Forward the value of "init_mode" to AgentService, so that we can force cgroupfs
when systemd is unavailable.
Fixes: #5779
Signed-off-by: Jeremi Piotrowski <jpiotrowski@microsoft.com>
Right now LinuxContainer::new() gets passed a CreateOpts struct, but then
modifies the use_systemd_cgroup field inside that struct. Pull the cgroups path
parsing logic into do_create_container, so that CreateOpts can be immutable in
LinuxContainer::new. This is just moving things around, there should be no
functional changes.
Signed-off-by: Jeremi Piotrowski <jpiotrowski@microsoft.com>
Since the cgroup manager is wrapped in a dyn now, the print in
LinuxContainer::new has been useless and just says "CgroupManager". Extend the
Debug trait for 'dyn Manager' to print the type of the cgroup manager so that
it's easier to debug issues.
Fixes: #5779
Signed-off-by: Jeremi Piotrowski <jpiotrowski@microsoft.com>
Trait method cause for std::error::Error is deprecated thus need replace
it with source method for cgroups-fs::error::ErrorKind.
Fixes: #6192
Signed-off-by: Jianyong Wu <jianyong.wu@arm.com>
We have to execute some hooks both in host and guest. And in
/libs/kata-sys-util/src/hooks.rs, the coomon operations are implemented.
In this commit, we are going to refactor the code of guest hooks using
code in /libs/kata-sys-util/src/hooks.rs. At the same time, we move
function valid_env to kata-sys-util to make it usable by both agent and
runtime.
Fixes: #5857
Signed-off-by: Yushuo <y-shuo@linux.alibaba.com>
Cgroup manager for a container will always be created.
Thus, dropping the option for LinuxContainer.cgroup_manager
is feasible and could simplify the code.
Fixes: #5778
Signed-off-by: Yuan-Zhuo <yuanzhuo0118@outlook.com>
The kata-agent supports SELinux for containers inside the guest
to comply with the OCI runtime specification.
Fixes: #4812
Signed-off-by: Manabu Sugimoto <Manabu.Sugimoto@sony.com>
1. Implemented a rust module for operating cgroups through systemd with the help of zbus (src/agent/rustjail/src/cgroups/systemd).
2. Add support for optional cgroup configuration through fs and systemd at agent (src/agent/rustjail/src/container.rs).
3. Described the usage and supported properties of the agent systemd cgroup (docs/design/agent-systemd-cgroup.md).
Fixes: #4336
Signed-off-by: Yuan-Zhuo <yuanzhuo0118@outlook.com>
before setting a limit, otherwise paths may not be found.
guest supporting different hugepage size is more likely with peer-pods where
podvm may use different flavor.
Fixes: #5191
Signed-off-by: Snir Sheriber <ssheribe@redhat.com>
ESRCH usually means the process has exited. In this case,
the execution should continue to kill remaining container processes.
Fixes: #5366
Signed-off-by: Feng Wang <feng.wang@databricks.com>
[Fix up cargo updates]
Signed-off-by: Peng Tao <bergwolf@hyper.sh>
One of the checks done by cargo-deny is ensuring all crates have a valid
license. As the rust programs import each other, cargo.toml files
without licenses trigger the check. While I could disable this check
this would be bad practice.
This adds an Apache-2.0 license in the Cargo.toml files.
Some of these files already had a header comment saying it is an Apache
license. As the entire project itself is under an Apache-2.0 license, I
assumed all individual components would also be covered under that
license.
Signed-off-by: Derek Lee <derlee@redhat.com>
Replaces instances of anyhow!(nix::Error::EINVAL) with other messages to
make it easier to debug.
Fixes#954
Signed-off-by: Derek Lee <derlee@redhat.com>
To make cgroup v1 and v2 works well, I use `cgroups::cgroup` in
`Container` to manager cgroup now. `CgroupManager` in rustjail has some
drawbacks. Frist, methods in Manager traits are not visiable. So we need
to modify rustjail and make them public. Second, CgrupManager.cgroup is
private too, and it can't be serialized. We can't load/save it in
status file. One solution is adding getter/setter in rustjail, then
create `cgroup` and set it when loading status. In order to keep the
modifications to a minimum in rustjail, I use `cgroups::cgroup`
directly. Now it can work on cgroup v1 or v2, since cgroup-rs do this
stuff.
Fixes: #4364#4821
Signed-off-by: Chen Yiyang <cyyzero@qq.com>
To keep runtime-rs up to date, we will merge main into runtime-rs every
week.
Fixes: #4790
Signed-off-by: Zhongtao Hu <zhongtaohu.tim@linux.alibaba.com>
To keep runtime-rs up to date, we will merge main into runtime-rs every
week.
Fixes:#4776
Signed-off-by: Zhongtao Hu <zhongtaohu.tim@linux.alibaba.com>
Fixes#4764
versions: update rust version to fix ccv0 attestation-agent build error
static-checks: kata tools, libs, and agent fixes
Signed-Off-By: Ryan Savino <ryan.savino@amd.com>
When a container terminated, we should make sure there's no processes
left after destroying the container.
Before this commit, kata-agent depended on the kernel's pidns
to destroy all of the process in a container after the 1 process
exit in a container. This is true for those container using a
separated pidns, but for the case of shared pidns within the
sandbox, the container exit wouldn't trigger the pidns terminated,
and there would be some daemon process left in this container, this
wasn't expected.
Fixes: #4663
Signed-off-by: Fupan Li <fupan.lfp@antgroup.com>
Change get_mounts to get paths from a borrowed argument rather than
calling get_paths a second time.
Fixes#3768
Signed-off-by: Derek Lee <derlee@redhat.com>
`exec` will execute a command inside a container which exists and is not
frozon or stopped. *Inside* means that the new process share namespaces
and cgroup with the container init process. Command can be specified by
`--process` parameter to read from a file, or from other parameters such
as arg, env, etc. In order to be compatible with `create`/`run`
commands, I refactor libcontainer. `Container` in builder.rs is divided
into `InitContainer` and `ActivatedContainer`. `InitContainer` is used
for `create`/`run` command. It will load spec from given bundle path.
`ActivatedContainer` is used by `exec` command, and will read the
container's status file, which stores the spec and `CreateOpt` for
creating the rustjail::LinuxContainer. Adapt the spec by replacing the
process with given options and updating the namesapces with some paths
to join the container. I also rename the `ContainerContext` as
`ContainerLauncher`, which is only used to spawn process now. It uses
the `LinuxContaier` in rustjail as the runner. For `create`/`run`, the
`launch` method will create a new container and run the first process.
For `exec`, the `launch` method will spawn a process which joins a
container.
Fixes#4363
Signed-off-by: Chen Yiyang <cyyzero@qq.com>
Replace `libc::setgroups()`, `libc::fchown()`, and `libc::sethostname()`
functions with nix crate ones for safety and maintainability.
Fixes: #4579
Signed-off-by: Manabu Sugimoto <Manabu.Sugimoto@sony.com>
Run the OCI `poststart` hooks must be called after the
user-specified process is executed but before the `start`
operation returns in accordance with OCI runtime spec.
Fixes: #4575
Signed-off-by: Manabu Sugimoto <Manabu.Sugimoto@sony.com>
