Right now, the persistent keepalive field of the Peer CRD is always
interpretted as nanoseconds and not seconds. This causes a mismatch
between Kilo's expected behavior and the actual interval that is given
to Peers. Because the interval is interpretted as nanoseconds the value
rounds down to 0 seconds.
Signed-off-by: Lucas Servén Marín <lserven@gmail.com>
* migrate to golang.zx2c4.com/wireguard/wgctrl
This commit introduces the usage of wgctrl.
It avoids the usage of exec calls of the wg command
and parsing the output of `wg show`.
Signed-off-by: leonnicolas <leonloechner@gmx.de>
* vendor wgctrl
Signed-off-by: leonnicolas <leonloechner@gmx.de>
* apply suggestions from code review
Remove wireguard.Enpoint struct and use net.UDPAddr for the resolved
endpoint and addr string (dnsanme:port) if a DN was supplied.
Signed-off-by: leonnicolas <leonloechner@gmx.de>
* pkg/*: use wireguard.Enpoint
This commit introduces the wireguard.Enpoint struct.
It encapsulates a DN name with port and a net.UPDAddr.
The fields are private and only accessible over exported Methods
to avoid accidental modification.
Also iptables.GetProtocol is improved to avoid ipv4 rules being applied
by `ip6tables`.
Signed-off-by: leonnicolas <leonloechner@gmx.de>
* pkg/wireguard/conf_test.go: add tests for Endpoint
Signed-off-by: leonnicolas <leonloechner@gmx.de>
* cmd/kg/main.go: validate port range
Signed-off-by: leonnicolas <leonloechner@gmx.de>
* add suggestions from review
Signed-off-by: leonnicolas <leonloechner@gmx.de>
* pkg/mesh/mesh.go: use Equal func
Implement an Equal func for Enpoint and use it instead of comparing
strings.
Signed-off-by: leonnicolas <leonloechner@gmx.de>
* cmd/kgctl/main.go: check port range
Signed-off-by: leonnicolas <leonloechner@gmx.de>
* vendor
Signed-off-by: leonnicolas <leonloechner@gmx.de>
After running make, the licenses for the generated go files is updated,
resulting in a diff in the repository. This makes later invocations of
`make container` generate tags with `$ARCH-$SHA-dirty` rather than just
`$ARM-$SHA`, which causes `make manifest` to fail, as some of the
images cannot be found.
A more permanent fix would be to ensure that running `make container`
does not cause the go code to unnecessarily regenerated, but this will
at least fix CI until next year.
Signed-off-by: Lucas Servén Marín <lserven@gmail.com>
When updating Kilo to the latest version of the CustomResourceDefinition
API, the Kilo Peer CRD was incorrectly scoped as a namespaced resource
due to differences in the ergonomics of the tooling.
This commit fixes the scoping of the Peer CRD to be cluster-wide.
Signed-off-by: Lucas Servén Marín <lserven@gmail.com>
Users can specify IPs with the annotation "allowed-location-ips".
It makes no difference which node of a location is annotated.
The IP should be routable from the particular location, e.g. a printer in
the same LAN.
This way these IPs become routable from other location.
Signed-off-by: leonnicolas <leonloechner@gmx.de>
Co-authored-by: Lucas Servén Marín <lserven@gmail.com>
- upgrade from apiextension v1beta1 to v1
- generate yaml manifest for crd intead of applying it at runtime
- users will have to apply the manifest with kubectl
- kg and kgctl log an error if the crd is not present
- now validation should actually work
Signed-off-by: leonnicolas <leonloechner@gmx.de>
This commit cleans up some typos in the documentation, clarifies some
explanations, fixes a bash script that would not expand a variable, and
renames the API documentation generator command from gen-docs to
docs-gen to match the output binary name.
Signed-off-by: Lucas Servén Marín <lserven@gmail.com>
The new make command `make gen-docs` is introduced.
It will build a markdown file from the CRD introduced by Kilo.
The generation of the docs is a requirement for building the website.
Signed-off-by: leonnicolas <leonloechner@gmx.de>
I had to run `make generate`.
Some API functions got additional parameters `Options` and `Context`.
I used empty options and `context.TODO()` for now.
Signed-off-by: leonnicolas <leonloechner@gmx.de>
* wireguard: export an Endpoint comparison method
* Record discovered endpoints in node
* Synchronize DiscoveredEndpoints in k8s backend
* Add discoveredEndpointsAreEqual
* Handle discovered Endpoints in topology to enable NAT 2 NAT
* Refactor to use Endpoint.Equal
Compare IP first by default and compare DNS name first when we know the Endpoint was resolved.
* Drop the shallow copies of nodes and peers
Now that updateNATEndpoints was updated to discoverNATEndpoints and that
the endpoints are overridden by topology instead of mutating the nodes and
peers object, we can safely drop this copy.
This commit adds support for defining preshared keys when declaring a
new Peer CRD. This preshared key will be used whenever the nodes in the
Kilo mesh communicate with that peer.
Signed-off-by: Lucas Servén Marín <lserven@gmail.com>
This commit documents the use of the persistent-keepalive annotation and
corrects the implementation of keepalives.
Signed-off-by: Lucas Servén Marín <lserven@gmail.com>
This commit allows DNS names to be used when specifying the endpoint
for a node in the WireGuard mesh. This is useful in many scenarios, in
particular when operating an IoT device whose public IP is dynamic. This
change allows the administrator to use a dynamic DNS name in the node's
endpoint.
One of the side-effects of this change is that the WireGuard port can
now be specified individually for each node in the mesh, if the
administrator wishes to do so.
*Note*: this commit introduces a breaking change; the
`force-external-ip` node annotation has been removed; its functionality
has been ported over to the `force-endpoint` annotation. This annotation
is documented in the annotations.md file. The expected content of this
annotation is no longer a CIDR but rather a host:port. The host can be
either a DNS name or an IP.
Signed-off-by: Lucas Servén Marín <lserven@gmail.com>
This commit updates the well-known label to determine the region of the
node to topology.kubernetes.io/region, which is the new standard as
defined by the Kubernetes documentation, now that
failure-domain.beta.kubernetes.io/region has been deprecated.
This commit adds several output options to the `showconf` command of the
`kgctl` binary:
* `--as-peer`: this can be used to generate a peer configuration, which
can be used to configure the selected resource as a peer of another
WireGuard interface
* `--output`: this can be used to select the desired output format of
the peer resource, available options are: WireGuard, YAML, and JSON.
This commit enables Kilo to work as an independent networking provider.
This is done by leveraging CNI. Kilo brings the necessary CNI plugins to
operate and takes care of all networking.
Add-on compatibility for Calico, Flannel, etc, will be re-introduced
shortly.
This commit introduces liveness checks to Kilo. This allows the Kilo
daemons to take nodes with inactive or dead Kilo deamons out of the
topology until they are alive again.
