Using a new ".configlist" file format that allows specifying
a list of CNI network configurations to run, add new libcni
helper functions to call each plugin in the list, injecting
the overall name, CNI version, and previous plugin's Result
structure into the configuration of the next plugin.
highlights:
- NetConf struct finally includes cniVersion field
- improve test coverage of current version report behavior
- godoc a few key functions
- allow tests to control version list reported by no-op plugin
The expectation on older kernels (< 3.19) was to have the network
namespace always be a directory. This is not true if the network
namespace is bind mounted to a file, and will make the plugin fail
erroneously in such cases. The fix is to remove this assumption
completely and just do a basic check on the file system types being
returned.
Fixes #288
The veth is moved from the container NS to the host NS.
This is handled by the code that sets the link to UP but the wrong
hostVeth is returned to the calling code.
If interface name for a container provided by a user is already present,
Veth creation fails with incorrect error.
If os.IsExist error is returned by makeVethPair:
* Check for peer name, if exists generate another random peer name,
* else, IsExist error is due to container interface present, return error.
Fixes #155
This will give deterministic MAC addresses for all interfaces CNI
creates and manages the IP for:
* bridge: container veth and host bridge
* macvlan: container veth
* ptp: container veth and host veth
* _suite.go and _test.go file should be in the same package, using the
_test package for that, which requires some fields and methods to be
exported
* Introduce error type for cleaner error handling
* test adaptions for error type checking
Previously, the log lines appeared in stdout before the JSON encoding of
the error message. That would break JSON parsing of stdout. Instead, we use
stderr for these unstructured logs, consistent with the CNI spec.
Allow strings to be unmarshalled for CNI_ARGS
CNI_ARGS uses types.LoadArgs to populate a struct.
The fields in the struct must meet the TextUnmarshaler interface.
This code adds a UnmarshallableString type to assist with this.
