Prior to moby/moby#44968, libnetwork would happily accept a ChildSubnet
with a bigger mask than its parent subnet. In such case, it was
producing IP addresses based on the parent subnet, and the child subnet
was not allocated from the address pool.
This commit automatically fixes invalid ChildSubnet for networks stored
in libnetwork's datastore.
Signed-off-by: Albin Kerouanton <albinker@gmail.com>
The Controller.Sandboxes method was used by some SandboxWalkers. Now
that those have been removed, there are no longer any consumers of this
method, so let's remove it for now.
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
This functionality has been replaced with Controller.GetSandbox, and is
no longer used anywhere.
This patch removes:
- the Controller.WalkSandboxes method
- the SandboxContainerWalker SandboxWalker
- the SandboxWalker type
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
Various parts of the code were using "walkers" to iterate over the
controller's sandboxes, and the only condition for all of them was
to find the sandbox for a given container-ID. Iterating over all
sandboxes was also sub-optimal, because on Windows, the ContainerID
is used as Sandbox-ID, which can be used to lookup the sandbox from
the "sandboxes" map on the controller.
This patch implements a GetSandbox method on the controller that
looks up the sandbox for a given container-ID, using the most optimal
approach (depending on the platform).
The new method can return errors for invalid (empty) container-IDs, and
a "not found" error to allow consumers to detect non-existing sandboxes,
or potentially invalid IDs.
This new method replaces the (non-exported) Daemon.getNetworkSandbox(),
which was only used internally, in favor of directly accessing the
controller's method.
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
It was not exported so let's remove the abstraction to not make it look
like something more than it is.
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
"Pay no attention to the implementation behind the curtain!"
There's only one implementation of the Sandbox interface, and only one implementation
of the Info interface, and they both happens to be implemented by the same type:
networkNamespace. Let's merge these interfaces.
And now that we know that there's one, and only one Info, we can drop the charade,
and relieve the Sandbox from its dual personality.
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
Removes the deprecated consts, which moved to a separate "scope" package
in commit 6ec03d6745, and are no longer used;
- datastore.LocalScope
- datastore.GlobalScope
- datastore.SwarmScope
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
UnavailableError is now compatible with errdefs.UnavailableError. These
errors will now return a 503 instead of a 500.
Signed-off-by: Albin Kerouanton <albinker@gmail.com>
InvalidParameter is now compatible with errdefs.InvalidParameter. Thus,
these errors will now return a 400 status code instead of a 500.
Signed-off-by: Albin Kerouanton <albinker@gmail.com>
- un-export ZoneSettings, because it's only used internally
- make conversion to a "interface" slice a method on the struct
- remove the getDockerZoneSettings() function, and move the type-definition
close to where it's used, as it was only used in a single location
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
There were quite some places where the type collided with variables
named `agent`. Let's rename the type.
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
This function has _four_ output variables of the same type, and several
defer statements that checked the error returned (but using the `err`
variable).
This patch names the return variables to make it clearer what's being
returned, and renames the error-return to `retErr` to make it clearer
where we're dealing with the returned error (and not any local err), to
prevent accidentally shadowing.
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
Some tests were implicitly skipped through the `getTestEnv()` utility,
which made it hard to discover they were not ran on Windows.
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
This makes it easier to spot if code is only used on Linux. Note that "all of"
the bridge driver is Linux-only.
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
The mutex is only used on reads, but there's nothing protecting writes,
and it looks like nothing is mutating fields after creation, so let's
remove this altogether.
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
No context in the commit that added it, but PR discussion shows that
the API was mostly exploratory, and it was 8 Years go, so let's not
head in that direction :) b646784859
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
Now that we removed the interface, there's no need to cast the Network
to a NetworkInfo interface, so we can remove uses of the `Info()` method.
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
These errors aren't used in our repo and seem unused by the OSS
community (this was checked with Sourcegraph).
- ErrIpamInternalError has never been used
- ErrInvalidRequest is unused since moby/libnetwork@c85356efa
- ErrPoolNotFound has never been used
- ErrOverlapPool has never been used
- ErrNoAvailablePool has never been used
Signed-off-by: Albin Kerouanton <albinker@gmail.com>
Check the preferredPool first, as other checks could be doing more
(such as locking, or validating / parsing). Also adding a note, as
it's unclear why we're ignoring invalid pools here.
The "invalid" conditions was added in [libnetwork#1095][1], which
moved code to reduce os-specific dependencies in the ipam package,
but also introduced a types.IsIPNetValid() function, which considers
"0.0.0.0/0" invalid, and added it to the condition to return early.
Unfortunately review does not mention this change, so there's no
context why. Possibly this was done to prevent errors further down
the line (when checking for overlaps), but returning an error here
instead would likely have avoided that as well, so we can only guess.
To make this code slightly more transparent, this patch also inlines
the "types.IsIPNetValid" function, as it's not used anywhere else,
and inlining it makes it more visible.
[1]: 5ca79d6b87 (diff-bdcd879439d041827d334846f9aba01de6e3683ed8fdd01e63917dae6df23846)
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
This code was only run if no preferred pool was specified, however,
since [libnetwork#1162][2], the function would already return early
if a preferred pools was set (and the overlap check to be skipped),
so this was now just dead code.
[2]: 9cc3385f44
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
This function intentionally holds a lock / lease on address-pools to
prevent trying the same pool repeatedly.
Let's try to make this logic slightly more transparent, and prevent
defining defers in a loop. Releasing all the pools in a singe defer
also allows us to get the network-name once, which prevents locking
and unlocking the network for each iteration.
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
