When slirp4netns v0.4.0+ is used, now slirp4netns is hardened using
mount namespace ("sandbox") and seccomp to mitigate potential
vulnerabilities.
bump up rootlesskit: 2fcff6ceae...791ac8cb20
Signed-off-by: Akihiro Suda <akihiro.suda.cz@hco.ntt.co.jp>
full diffs:
- fc5a7d91d5...62a13ae87c
- b2de5d10e3...v1.0.0
- 604eaf189e...13995c7128ccc8e51e9a6bd2b551020a27180abd
notable changes in libnetwork:
- docker/libnetwork#2366 Bump vishvananda/netlink to 1.0.0
- docker/libnetwork#2339 controller: Check if IPTables is enabled for arrangeUserFilterRule
- addresses docker/libnetwork#2158 dockerd when run with --iptables=false modifies iptables by adding DOCKER-USER
- addresses moby/moby#35777 With iptables=false dockerd still creates DOCKER-USER chain and rules
- addresses docker/for-linux#136 dockerd --iptables=false adds DOCKER-USER chain and modify FORWARD chain anyway
- docker/libnetwork#2394 Make DNS records and queries case-insensitive
- addresses moby/moby#28689 Embedded DNS is case-sensitive
- addresses moby/moby#21169 hostnames with new networking are case-sensitive
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
From the release notes: https://github.com/containerd/containerd/releases/tag/v1.2.7
> Welcome to the v1.2.7 release of containerd!
>
> The seventh patch release for containerd 1.2 introduces OCI image
> descriptor annotation support and contains fixes for containerd shim logs,
> container stop/deletion, cri plugin and selinux.
>
> It also contains several important bug fixes for goroutine and file
> descriptor leakage in containerd and containerd shims.
>
> Notable Updates
>
> - Support annotations in the OCI image descriptor, and filtering image by annotations. containerd/containerd#3254
> - Support context timeout in ttrpc which can help avoid containerd hangs when a shim is unresponsive. containerd/ttrpc#31
> - Fix a bug that containerd shim leaks goroutine and file descriptor after containerd restarts. containerd/ttrpc#37
> - Fix a bug that a container can't be deleted if first deletion attempt is canceled or timeout. containerd/containerd#3264
> - Fix a bug that containerd leaks file descriptor when using v2 containerd shims, e.g. containerd-shim-runc-v1. containerd/containerd#3273
> - Fix a bug that a container with lingering processes can't terminate when it shares pid namespace with another container. moby/moby#38978
> - Fix a bug that containerd can't read shim logs after restart. containerd/containerd#3282
> - Fix a bug that shim_debug option is not honored for existing containerd shims after containerd restarts. containerd/containerd#3283
> - cri: Fix a bug that a container can't be stopped when the exit event is not successfully published by the containerd shim. containerd/containerd#3125, containerd/containerd#3177
> - cri: Fix a bug that exec process is not cleaned up if grpc context is canceled or timeout. contaienrd/cri#1159
> - Fix a selinux keyring labeling issue by updating runc to v1.0.0-rc.8 and selinux library to v1.2.2. opencontainers/selinux#50
> - Update ttrpc to f82148331ad2181edea8f3f649a1f7add6c3f9c2. containerd/containerd#3316
> - Update cri to 49ca74043390bc2eeea7a45a46005fbec58a3f88. containerd/containerd#3330
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
lxc-user-nic can eliminate slirp overhead but needs /etc/lxc/lxc-usernet to be configured for the current user.
To use lxc-user-nic, $DOCKERD_ROOTLESS_ROOTLESSKIT_NET=lxc-user-nic also needs to be set.
This commit also bumps up RootlessKit from v0.3.0 to v0.4.0:
70e0502f32...e92d5e772e
Signed-off-by: Akihiro Suda <akihiro.suda.cz@hco.ntt.co.jp>
Now `docker run -p` ports can be exposed to the host namespace automatically when `dockerd-rootless.sh` is launched with
`--userland-proxy --userland-proxy-path $(which rootlesskit-docker-proxy)`.
This is akin to how Docker for Mac/Win works with `--userland-proxy-path=/path/to/vpnkit-expose-port`.
The port number on the host namespace needs to be set to >= 1024.
SCTP ports are currently unsupported.
RootlessKit changes: 7bbbc48a6f...ed26714429
Signed-off-by: Akihiro Suda <suda.akihiro@lab.ntt.co.jp>
Notable Updates
- Fix an issue that non-existent parent directory in image layers is created with permission 0700. containerd#3017
- Fix an issue that snapshots of the base image can be deleted by mistake, when images built on top of it are deleted. containerd#3087
- Support for GC references to content from snapshot and container objects. containerd#3080
- cgroups updated to dbea6f2bd41658b84b00417ceefa416b97 to fix issues for systemd 420 and non-existent cgroups. containerd#3079
- runc updated to 2b18fe1d885ee5083ef9f0838fee39b62d653e30 to include the improved fix for CVE-2019-5736. containerd#3082
- cri: Fix a bug that pod can't get started when the same volume is defined differently in the image and the pod spec. cri#1059
- cri: Fix a bug that causes container start failure after in-place upgrade containerd to 1.2.4+ or 1.1.6+. cri#1082
- cri updated to a92c40017473cbe0239ce180125f12669757e44f. containerd#3084
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
- Fixes a vulnerability in runc that allows a container escape (CVE-2019-5736)
6635b4f0c6,
- Includes security fix for `runc run --no-pivot` (`DOCKER_RAMDISK=1`):
28a697cce3
(NOTE: the vuln is attackable only when `DOCKER_RAMDISK=1` is set && seccomp is disabled)
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
Please refer to `docs/rootless.md`.
TLDR:
* Make sure `/etc/subuid` and `/etc/subgid` contain the entry for you
* `dockerd-rootless.sh --experimental`
* `docker -H unix://$XDG_RUNTIME_DIR/docker.sock run ...`
Signed-off-by: Akihiro Suda <suda.akihiro@lab.ntt.co.jp>
Update to the latest patch release of 17.06.2. This
keeps the same API requirements.
This also enables pre-built binaries for armhf instead
of compiling from source.
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
- Fix a bug that a container can't be stopped or inspected when its corresponding image is deleted
- Fix a bug that the cri plugin handles containerd events outside of k8s.io namespace
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
These scripts explicitly use Bash, so we should be able to use
`[[` instead of `[` (which seems to be recommended).
Also added curly brackets to some bare variables, and quoted some paths.
This makes my IDE a bit more silent :-)
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
The previous update used a commit from master. Now that
all the fixes are backported to the containerd 1.2 release
branch, we can switch back to that branch.
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
release notes: https://github.com/containerd/containerd/releases/tag/v1.2.0
- New V2 Runtime with a stable gRPC interface for managing containers through
external shims.
- Updated CRI Plugin, validated against Kubernetes v1.11 and v1.12, but it is
also compatible with Kubernetes v1.10.
- Support for Kubernetes Runtime Class, introduced in Kubernetes 1.12
- A new proxy plugin configuration has been added to allow external
snapshotters be connected to containerd using gRPC.-
- A new Install method on the containerd client allows users to publish host
level binaries using standard container build tooling and container
distribution tooling to download containerd related binaries on their systems.
- Add support for cleaning up leases and content ingests to garbage collections.
- Improved multi-arch image support using more precise matching and ranking
- Added a runtime `options` field for shim v2 runtime. Use the `options` field to
config runtime specific options, e.g. `NoPivotRoot` and `SystemdCgroup` for
runtime type `io.containerd.runc.v1`.
- Some Minor API additions
- Add `ListStream` method to containers API. This allows listing a larger
number of containers without hitting message size limts.
- Add `Sync` flag to `Delete` in leases API. Setting this option will ensure
a garbage collection completes before the removal call is returned. This can
be used to guarantee unreferenced objects are removed from disk after a lease.
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
