This centralizes more defaults, to be part of the config struct that's
created, instead of interweaving the defaults with other code in various
places.
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
(cherry picked from commit b28e66cf4f)
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
[RFC 8259] allows for JSON implementations to optionally ignore a BOM
when it helps with interoperability; do so in Moby as Notepad (the only
text editor available out of the box in many versions of Windows Server)
insists on writing UTF-8 with a BOM.
[RFC 8259]: https://tools.ietf.org/html/rfc8259#section-8.1
Signed-off-by: Bjorn Neergaard <bneergaard@mirantis.com>
(cherry picked from commit bb19265ba8)
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
`linux/btrfs_tree.h` was not installed to `/usr/include` until kernel 4.12
fcc8487d47
Signed-off-by: Akihiro Suda <akihiro.suda.cz@hco.ntt.co.jp>
(cherry picked from commit 89fb8b32f6)
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
This is no longer necessary after the switch to the kernel UAPI.
Signed-off-by: Bjorn Neergaard <bneergaard@mirantis.com>
(cherry picked from commit aa80c33360)
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
We only need suitable UAPI headers now. They are available on kernel 4.7
and newer; out of the distributions currently in support that users
might be interested in, only Enterprise Linux 7 has too old a kernel
(3.10).
Users of Enterprise Linux 7 distros can compile using a newer platform,
disable the Btrfs graphdriver as documented in this file, or use newer
kernel headers on their older distro.
Signed-off-by: Bjorn Neergaard <bneergaard@mirantis.com>
(cherry picked from commit c9d632e485)
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
While the Cgo in this entire file is quite questionable, that is a task
for another day.
Signed-off-by: Bjorn Neergaard <bneergaard@mirantis.com>
(cherry picked from commit d3778d65fa)
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
By relying on the kernel UAPI (userspace API), we can drop a dependency
and simplify building Moby, while also ensuring that we are using a
stable/supported source of the C types and defines we need.
btrfs-progs mirrors the kernel headers, but the headers it ships with
are not the canonical source and as [we have seen before][44698], could
be subject to changes.
Depending on the canonical headers from the kernel both is more
idiomatic, and ensures we are protected by the kernel's promise to not
break userspace.
[44698]: https://github.com/moby/moby/issues/44698
Signed-off-by: Bjorn Neergaard <bneergaard@mirantis.com>
(cherry picked from commit 3208dcabdc)
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
This is actually quite meaningless as we are reporting the libbtrfs
version, but we do not use libbtrfs. We only use the kernel interface to
btrfs instead.
While we could report the version of the kernel headers in play, they're
rather all-or-nothing: they provide the structures and defines we need,
or they don't. As such, drop all version information as the host kernel
version is the only thing that matters.
Signed-off-by: Bjorn Neergaard <bneergaard@mirantis.com>
(cherry picked from commit 1449c82484)
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
cmd.Wait is called twice from different goroutines which can cause the
test to hang completely. Fix by calling Wait only once and sending its
return value over a channel.
In TestLogsFollowGoroutinesWithStdout also added additional closes and
process kills to ensure that we don't leak anything in case test returns
early because of failed test assertion.
Signed-off-by: Paweł Gronowski <pawel.gronowski@docker.com>
(cherry picked from commit deb4910c5b)
This function is still useful for the dev environment.
Signed-off-by: CrazyMax <crazy-max@users.noreply.github.com>
(cherry picked from commit 7e7b0622a6)
Make it possible to add `-race` to the BUILDFLAGS without making the
build fail with error:
"-buildmode=pie not supported when -race is enabled"
Signed-off-by: Paweł Gronowski <pawel.gronowski@docker.com>
(cherry picked from commit bbe6e9e8d1)
Conntrack entries are created for UDP flows even if there's nowhere to
route these packets (ie. no listening socket and no NAT rules to
apply). Moreover, iptables NAT rules are evaluated by netfilter only
when creating a new conntrack entry.
When Docker adds NAT rules, netfilter will ignore them for any packet
matching a pre-existing conntrack entry. In such case, when
dockerd runs with userland proxy enabled, packets got routed to it and
the main symptom will be bad source IP address (as shown by #44688).
If the publishing container is run through Docker Swarm or in
"standalone" Docker but with no userland proxy, affected packets will
be dropped (eg. routed to nowhere).
As such, Docker needs to flush all conntrack entries for published UDP
ports to make sure NAT rules are correctly applied to all packets.
- Fixes#44688
- Fixes#8795
- Fixes#16720
- Fixes#7540
- Fixesmoby/libnetwork#2423
- and probably more.
As a precautionary measure, those conntrack entries are also flushed
when revoking external connectivity to avoid those entries to be reused
when a new sandbox is created (although the kernel should already
prevent such case).
Signed-off-by: Albin Kerouanton <albinker@gmail.com>
(cherry picked from commit b37d34307d)
Signed-off-by: Cory Snider <csnider@mirantis.com>
The CreatedAt date was determined from the volume's `_data`
directory (`/var/lib/docker/volumes/<volumename>/_data`).
However, when initializing a volume, this directory is updated,
causing the date to change.
Instead of using the `_data` directory, use its parent directory,
which is not updated afterwards, and should reflect the time that
the volume was created.
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
Signed-off-by: Paweł Gronowski <pawel.gronowski@docker.com>
(cherry picked from commit 01fd23b625)
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
We still need a stage that build binaries and extra tools as well for
docker-ce-packaging repo: ff110508ff/static/Makefile (L41-L57)
This could be removed if we create a package for each project
like it's done in docker-packaging repo: https://github.com/docker/packaging/tree/main/pkg
Signed-off-by: CrazyMax <crazy-max@users.noreply.github.com>
(cherry picked from commit e8a82ed24d)
Keep the same output dir format in the bake definition
as the one used in make scripts.
Signed-off-by: CrazyMax <crazy-max@users.noreply.github.com>
(cherry picked from commit 9bcf5bed05)
this script is not used anymore. containerutility is
built in the Dockerfile.
Signed-off-by: CrazyMax <crazy-max@users.noreply.github.com>
(cherry picked from commit 04c90b8cf5)
Better support for cross compilation so we can fully rely
on `--platform` flag of buildx for a seamless integration.
This removes unnecessary extra cross logic in the Dockerfile,
DOCKER_CROSSPLATFORMS and CROSS vars and some hack scripts as well.
Non-sandboxed build invocation is still supported and dev stages
in the Dockerfile have been updated accordingly.
Bake definition and GitHub Actions workflows have been updated
accordingly as well.
Signed-off-by: CrazyMax <crazy-max@users.noreply.github.com>
(cherry picked from commit 8086f40123)
iptables -C flag was introduced in v1.4.11, which was released ten
years ago. Thus, there're no more Linux distributions supported by
Docker using this version. As such, this commit removes the old way of
checking if an iptables rule exists (by using substring matching).
Signed-off-by: Albin Kerouanton <albinker@gmail.com>
(cherry picked from commit 799cc143c9)
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
The former was doing some checks and logging warnings, whereas
the latter was doing the same checks but to set some internal variables.
As both are called only once and from the same place, there're now
merged together.
Signed-off-by: Albin Kerouanton <albinker@gmail.com>
(cherry picked from commit 205e5278c6)
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
iptables package has a function `detectIptables()` called to initialize
some local variables. Since v20.10.0, it first looks for iptables bin,
then ip6tables and finally it checks what iptables flags are available
(including -C). It early exits when ip6tables isn't available, and
doesn't execute the last check.
To remove port mappings (eg. when a container stops/dies), Docker
first checks if those NAT rules exist and then deletes them. However, in
the particular case where there's no ip6tables bin available, iptables
`-C` flag is considered unavailable and thus it looks for NAT rules by
using some substring matching. This substring matching then fails
because `iptables -t nat -S POSTROUTING` dumps rules in a slighly format
than what's expected.
For instance, here's what `iptables -t nat -S POSTROUTING` dumps:
```
-A POSTROUTING -s 172.18.0.2/32 -d 172.18.0.2/32 -p tcp -m tcp --dport 9999 -j MASQUERADE
```
And here's what Docker looks for:
```
POSTROUTING -p tcp -s 172.18.0.2 -d 172.18.0.2 --dport 9999 -j MASQUERADE
```
Because of that, those rules are considered non-existant by Docker and
thus never deleted. To fix that, this change reorders the code in
`detectIptables()`.
Fixes#42127.
Signed-off-by: Albin Kerouanton <albinker@gmail.com>
(cherry picked from commit af7236f85a)
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
- use local variables for chains instead of sharing global variables
- make createNewChain a t.Helper
Signed-off-by: Chee Hau Lim <ch33hau@gmail.com>
(cherry picked from commit a2cea992c2)
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
Simplify the error message so that we don't have to distinguish between static-
and non-static builds. Also update the link to the storage-driver section to
use a "/go/" redirect in the docs, as the anchor link was no longer correct.
Using a "/go/" redirect makes sure the link remains functional if docs is moving
around.
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
(cherry picked from commit a5ebd28797)
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
