Points out another symbol that Docker might need. in this case Docker's
mesh network in swarm mode does not route Virtual IPs if it's unset.
From /var/logs/docker.log:
time="2021-02-19T18:15:39+01:00" level=error msg="set up rule failed, [-t mangle -A INPUT -d 10.0.1.2/32 -j MARK --set-mark 257]: (iptables failed: iptables --wait -t mang
le -A INPUT
-d 10.0.1.2/32 -j MARK --set-mark 257: iptables v1.8.7 (legacy): unknown option \"--set-mark\"\nTry `iptables -h' or 'iptables --help' for more information.\n (exit status 2))"
Bug: https://github.com/moby/libnetwork/issues/2227
Bug: https://github.com/docker/for-linux/issues/644
Bug: https://github.com/docker/for-linux/issues/525
Signed-off-by: Piotr Karbowski <piotr.karbowski@protonmail.ch>
(cherry picked from commit e8ceb97646)
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
Config resolution was synchronized based on a wrong key as ref
variable is initialized only after in the same function. Using
the right key isn't fully correct either as the synchronized method
changes properties of the puller instance and can't be just skipped.
Added better error handling for the same case as well.
Signed-off-by: Tonis Tiigi <tonistiigi@gmail.com>
(cherry picked from commit b53ea19c49)
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
Wrap platforms.Only and fallback to our ignore mismatches due to empty
CPU variants. This just cleans things up and makes the logic re-usable
in other places.
Signed-off-by: Brian Goff <cpuguy83@gmail.com>
(cherry picked from commit 50f39e7247)
Signed-off-by: Brian Goff <cpuguy83@gmail.com>
In some cases, in fact many in the wild, an image may have the incorrect
platform on the image config.
This can lead to failures to run an image, particularly when a user
specifies a `--platform`.
Typically what we see in the wild is a manifest list with an an entry
for, as an example, linux/arm64 pointing to an image config that has
linux/amd64 on it.
This change falls back to looking up the manifest list for an image to
see if the manifest list shows the image as the correct one for that
platform.
In order to accomplish this we need to traverse the leases associated
with an image. Each image, if pulled with Docker 20.10, will have the
manifest list stored in the containerd content store with the resource
assigned to a lease keyed on the image ID.
So we look up the lease for the image, then look up the assocated
resources to find the manifest list, then check the manifest list for a
platform match, then ensure that manifest referes to our image config.
This is only used as a fallback when a user specified they want a
particular platform and the image config that we have does not match
that platform.
Signed-off-by: Brian Goff <cpuguy83@gmail.com>
(cherry picked from commit 4be5453215)
Signed-off-by: Brian Goff <cpuguy83@gmail.com>
These syscalls (some of which have been in Linux for a while but were
missing from the profile) fall into a few buckets:
* close_range(2), epoll_pwait2(2) are just extensions of existing "safe
for everyone" syscalls.
* The mountv2 API syscalls (fs*(2), move_mount(2), open_tree(2)) are
all equivalent to aspects of mount(2) and thus go into the
CAP_SYS_ADMIN category.
* process_madvise(2) is similar to the other process_*(2) syscalls and
thus goes in the CAP_SYS_PTRACE category.
Signed-off-by: Aleksa Sarai <asarai@suse.de>
(cherry picked from commit 54eff4354b)
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
When pulling an image by platform, it is possible for the image's
configured platform to not match what was in the manifest list.
The image itself is buggy because either the manifest list is incorrect
or the image config is incorrect. In any case, this is preventing people
from upgrading because many times users do not have control over these
buggy images.
This was not a problem in 19.03 because we did not compare on platform
before. It just assumed if we had the image it was the one we wanted
regardless of platform, which has its own problems.
Example Dockerfile that has this problem:
```Dockerfile
FROM --platform=linux/arm64 k8s.gcr.io/build-image/debian-iptables:buster-v1.3.0
RUN echo hello
```
This fails the first time you try to build after it finishes pulling but
before performing the `RUN` command.
On the second attempt it works because the image is already there and
does not hit the code that errors out on platform mismatch (Actually it
ignores errors if an image is returned at all).
Must be run with the classic builder (DOCKER_BUILDKIT=0).
Signed-off-by: Brian Goff <cpuguy83@gmail.com>
(cherry picked from commit 399695305c)
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
This fixes a panic when an admin specifies a custom default runtime,
when a plugin is started the shim config is nil.
Signed-off-by: Brian Goff <cpuguy83@gmail.com>
(cherry picked from commit 2903863a1d)
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
Loggers that implement BufSize() (e.g. awslogs) uses the method to
tell Copier about the maximum log line length. However loggerWithCache
and RingBuffer hide the method by wrapping loggers.
As a result, Copier uses its default 16KB limit which breaks log
lines > 16kB even the destinations can handle that.
This change implements BufSize() on loggerWithCache and RingBuffer to
make sure these logger wrappes don't hide the method on the underlying
loggers.
Fixes#41794.
Signed-off-by: Kazuyoshi Kato <katokazu@amazon.com>
(cherry picked from commit bb11365e96)
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
Backport of 2db5676c6e to the swagger files
used in the documentation
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
(cherry picked from commit 240d0b37bb)
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
This PR was originally proposed by @phillc here: https://github.com/docker/engine/pull/456
Signed-off-by: FreddieOliveira <fredf_oliveira@ufu.br>
(cherry picked from commit 2db5676c6e)
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
This parameter was removed by kernel commit 4c145dce260137,
which made its way to kernel v5.3-rc1. Since that commit,
the functionality is built-in (i.e. it is available as long
as CONFIG_XFRM is on).
Make the check conditional.
Signed-off-by: Kir Kolyshkin <kolyshkin@gmail.com>
(cherry picked from commit 06d9020fac)
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
These config options are removed by kernel commit f382fb0bcef4,
which made its way into kernel v5.0-rc1.
Make the check conditional.
Signed-off-by: Kir Kolyshkin <kolyshkin@gmail.com>
(cherry picked from commit 18e0543587)
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
Kernel commit 2d1c498072de69e (which made its way into kernel v5.8-rc1)
removed CONFIG_MEMCG_SWAP_ENABLED Kconfig option, making swap accounting
always enabled (unless swapaccount=0 boot option is provided).
Make the check conditional.
Signed-off-by: Kir Kolyshkin <kolyshkin@gmail.com>
(cherry picked from commit 070f9d9dd3)
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
CONFIG_NF_NAT_NEEDED was removed in kernel commit 4806e975729f99c7,
which made its way into v5.2-rc1. The functionality is now under
NF_NAT which we already check for.
Make the check for NF_NAT_NEEDED conditional.
Signed-off-by: Kir Kolyshkin <kolyshkin@gmail.com>
(cherry picked from commit 03da41152a)
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
CONFIG_NF_NAT_IPV4 was removed in kernel commit 3bf195ae6037e310,
which made its way into v5.1-rc1. The functionality is now under
NF_NAT which we already check for.
Make the check for NF_NAT_IPV4 conditional.
Signed-off-by: Kir Kolyshkin <kolyshkin@gmail.com>
(cherry picked from commit eeb53c1f22)
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
This fixes a panic when an invalid "device cgroup rule" is passed, resulting
in an "index out of range".
This bug was introduced in the original implementation in 1756af6faf,
but was not reproducible when using the CLI, because the same commit also added
client-side validation on the flag before making an API request. The following
example, uses an invalid rule (`c *:* rwm` - two spaces before the permissions);
```console
$ docker run --rm --network=host --device-cgroup-rule='c *:* rwm' busybox
invalid argument "c *:* rwm" for "--device-cgroup-rule" flag: invalid device cgroup format 'c *:* rwm'
```
Doing the same, but using the API results in a daemon panic when starting the container;
Create a container with an invalid device cgroup rule:
```console
curl -v \
--unix-socket /var/run/docker.sock \
"http://localhost/v1.41/containers/create?name=foobar" \
-H "Content-Type: application/json" \
-d '{"Image":"busybox:latest", "HostConfig":{"DeviceCgroupRules": ["c *:* rwm"]}}'
```
Start the container:
```console
curl -v \
--unix-socket /var/run/docker.sock \
-X POST \
"http://localhost/v1.41/containers/foobar/start"
```
Observe the daemon logs:
```
2021-01-22 12:53:03.313806 I | http: panic serving @: runtime error: index out of range [0] with length 0
goroutine 571 [running]:
net/http.(*conn).serve.func1(0xc000cb2d20)
/usr/local/go/src/net/http/server.go:1795 +0x13b
panic(0x2f32380, 0xc000aebfc0)
/usr/local/go/src/runtime/panic.go:679 +0x1b6
github.com/docker/docker/oci.AppendDevicePermissionsFromCgroupRules(0xc000175c00, 0x8, 0x8, 0xc0000bd380, 0x1, 0x4, 0x0, 0x0, 0xc0000e69c0, 0x0, ...)
/go/src/github.com/docker/docker/oci/oci.go:34 +0x64f
```
This patch:
- fixes the panic, allowing the daemon to return an error on container start
- adds a unit-test to validate various permutations
- adds a "todo" to verify the regular expression (and handling) of the "a" (all) value
We should also consider performing this validation when _creating_ the container,
so that an error is produced early.
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
(cherry picked from commit 5cc1753f2c)
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
While the field in the Go struct is named `NanoCPUs`, it has a JSON label to
use `NanoCpus`, which was added in the original pull request (not clear what
the reason was); 846baf1fd3
Some notes:
- Golang processes field names case-insensitive, so when *using* the API,
both cases should work, but when inspecting a container, the field is
returned as `NanoCpus`.
- This only affects Containers.Resources. The `Limits` and `Reservation`
for SwarmKit services and SwarmKit "nodes" do not override the name
for JSON, so have the canonical (`NanoCPUs`) casing.
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
(cherry picked from commit 8e2343ffd4)
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
While the field in the Go struct is named `NanoCPUs`, it has a JSON label to
use `NanoCpus`, which was added in the original pull request (not clear what
the reason was); 846baf1fd3
Some notes:
- Golang processes field names case-insensitive, so when *using* the API,
both cases should work, but when inspecting a container, the field is
returned as `NanoCpus`.
- This only affects Containers.Resources. The `Limits` and `Reservation`
for SwarmKit services and SwarmKit "nodes" do not override the name
for JSON, so have the canonical (`NanoCPUs`) casing.
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
(cherry picked from commit 2bd46ed7e5)
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
full diff: https://github.com/opencontainers/runc/compare/v1.0.0-rc92...v1.0.0-rc93
release notes: https://github.com/opencontainers/runc/releases/tag/v1.0.0-rc93
Release notes for runc v1.0.0-rc93
-------------------------------------------------
This is the last feature-rich RC release and we are in a feature-freeze until
1.0. 1.0.0~rc94 will be released in a few weeks with minimal bug fixes only,
and 1.0.0 will be released soon afterwards.
- runc's cgroupv2 support is no longer considered experimental. It is now
believed to be fully ready for production deployments. In addition, runc's
cgroup code has been improved:
- The systemd cgroup driver has been improved to be more resilient and
handle more systemd properties correctly.
- We now make use of openat2(2) when possible to improve the security of
cgroup operations (in future runc will be wholesale ported to libpathrs to
get this protection in all codepaths).
- runc's mountinfo parsing code has been reworked significantly, making
container startup times significantly faster and less wasteful in general.
- runc now has special handling for seccomp profiles to avoid making new
syscalls unusable for glibc. This is done by installing a custom prefix to
all seccomp filters which returns -ENOSYS for syscalls that are newer than
any syscall in the profile (meaning they have a larger syscall number).
This should not cause any regressions (because previously users would simply
get -EPERM rather than -ENOSYS, and the rule applied above is the most
conservative rule possible) but please report any regressions you find as a
result of this change -- in particular, programs which have special fallback
code that is only run in the case of -EPERM.
- runc now supports the following new runtime-spec features:
- The umask of a container can now be specified.
- The new Linux 5.9 capabilities (CAP_PERFMON, CAP_BPF, and
CAP_CHECKPOINT_RESTORE) are now supported.
- The "unified" cgroup configuration option, which allows users to explicitly
specify the limits based on the cgroup file names rather than abstracting
them through OCI configuration. This is currently limited in scope to
cgroupv2.
- Various rootless containers improvements:
- runc will no longer cause conflicts if a user specifies a custom device
which conflicts with a user-configured device -- the user device takes
precedence.
- runc no longer panics if /sys/fs/cgroup is missing in rootless mode.
- runc --root is now always treated as local to the current working directory.
- The --no-pivot-root hardening was improved to handle nested mounts properly
(please note that we still strongly recommend that users do not use
--no-pivot-root -- it is still an insecure option).
- A large number of code cleanliness and other various cleanups, including
fairly large changes to our tests and CI to make them all run more
efficiently.
For packagers the following changes have been made which will have impact on
your packaging of runc:
- The "selinux" and "apparmor" buildtags have been removed, and now all runc
builds will have SELinux and AppArmor support enabled. Note that "seccomp"
is still optional (though we very highly recommend you enable it).
- make install DESTDIR= now functions correctly.
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
(cherry picked from commit 28e5a3c5a4)
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
Commit edb62a3ace fixed a bug in MkdirAllAndChown()
that caused the specified permissions to not be applied correctly. As a result
of that bug, the configured umask would be applied.
When extracting archives, Unpack() used 0777 permissions when creating missing
parent directories for files that were extracted.
Before edb62a3ace, this resulted in actual
permissions of those directories to be 0755 on most configurations (using a
default 022 umask).
Creating these directories should not depend on the host's umask configuration.
This patch changes the permissions to 0755 to match the previous behavior,
and to reflect the original intent of using 0755 as default.
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
(cherry picked from commit 25ada76437)
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
v0.13.1
- Refactor `ParsePortSpec` to handle IPv6 addresses, and improve validation
v0.13.0
- `rootlesskit --pidns`: fix propagating exit status
- Support cgroup2 evacuation, e.g., `systemd-run -p Delegate=yes --user -t rootlesskit --cgroupns --pidns --evacuate-cgroup2=evac --net=slirp4netns bash`
v0.12.0
- Port forwarding API now supports setting `ChildIP`
- The `vendor` directory is no longer included in this repo. Run `go mod vendor` if you need
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
(cherry picked from commit e32ae1973a)
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
Fix docker0 subnet missmatch when running from docker in docker (dind)
Signed-off-by: Alexis Ries <ries.alexis@gmail.com>
(cherry picked from commit 96e103feb1)
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
