Commit Graph

35 Commits

Author SHA1 Message Date
Lucas Servén Marín
38a5dd22e9
backend: fix Peer persistent keepalive
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>
2022-03-31 21:24:03 +02:00
leonnicolas
6a696e03e7
migrate to golang.zx2c4.com/wireguard/wgctrl (#239)
* 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>
2022-01-30 17:38:45 +01:00
Lucas Servén Marín
ee650342d5
pkg/k8s: update generated licenses
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>
2022-01-04 14:01:29 +01:00
leonnicolas
70d2751030
bumg golang 1.15 -> 1.17
Signed-off-by: leonnicolas <leonloechner@gmx.de>
2021-09-30 17:47:47 +02:00
Lucas Servén Marín
288bb824aa
pkg/k8s: fix resource scope of Kilo CRD
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>
2021-08-19 22:58:42 +02:00
leonnicolas
088578b055
pkg/ cmd/: kgctl autodetect mesh granularity
Addes granularity annotation to auto detect the mesh granularity when
using kubectl

Signed-off-by: leonnicolas <leonloechner@gmx.de>
2021-06-18 15:59:25 +02:00
leonnicolas
31ffaa0e71
pkg/: FEATURE: support allowed IPs outside a cluster
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>
2021-06-15 22:17:35 +02:00
leonnicolas
36643b77b4
Use apiextension v1
- 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>
2021-06-14 12:59:33 +02:00
Lucas Servén Marín
845df22a32
docs,README.md: clean up documentation
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>
2021-05-20 12:45:02 +02:00
leonnicolas
51f1ae94ef
cmd/gen-docs/main.go: auto generate docs for CRD
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>
2021-05-17 13:54:56 +02:00
leonnicolas
a3bf13711c
go.mod: bump client-go and api machinerie
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>
2021-05-15 12:12:50 +02:00
leonnicolas
64ea86436f
pkg/k8s/apis/kilo/v1alpha1/types.go: add public key validation
Signed-off-by: leonnicolas <leonloechner@gmx.de>
2021-04-30 22:03:34 +02:00
Julien Viard de Galbert
2ac000c68a
Nat to nat (#146)
* 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.
2021-04-21 19:47:29 +02:00
leonnicolas
9d10d4a3de
FEATURE: allow disabling private IPs
When forcing the internal IP to "" or "-", private IPs won't be used.
2021-03-13 23:33:18 +01:00
Lucas Servén Marín
64fb06a383
pkg/k8s: bump headers for 2021
This commit re-generates all generated files to include the new year in
the comment.

Signed-off-by: Lucas Servén Marín <lserven@gmail.com>
2021-01-30 17:40:01 +01:00
leonnicolas
3a201ba0fa
Nodes without private IPs
Allow nodes to have no private IPs.
Nodes without private IPs will automatically be put into
their own location.
2021-01-24 22:37:24 +01:00
Tadeuš Varnas
849449890d
Apply suggestions from code review
Co-authored-by: Lucas Servén Marín <lserven@gmail.com>
2020-12-14 10:20:53 +02:00
varnastadues
cb12666fc1 feat: add support for custom topology label 2020-12-11 16:44:20 +02:00
Lucas Servén Marín
116fb7337a
pkg/k8s: enable peers to use DNS names
This commit enables peers defined using the Peer CRD to declare their
endpoints using DNS names.

Signed-off-by: Lucas Servén Marín <lserven@gmail.com>
2020-09-17 14:48:38 +02:00
Lucas Servén Marín
0a10dc921c
pkg/k8s/apis: support for preshared keys in peers
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>
2020-05-05 11:36:43 +02:00
Lucas Servén Marín
24d7c27901
pkg/mesh,docs: document and fix keepalive logic
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>
2020-03-04 01:36:56 +01:00
Lucas Servén Marín
aa376ff0d1
pkg/mesh,pkg/wireguard: allow DNS name endpoints
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>
2020-02-22 17:17:13 +01:00
Francis Nguyen
6de0f9805a
Define WireGuard PersistentKeepAlive via Annotation (#31)
* Add WireGuardPersistentKeepAlive to mesh.Node

* Connect to configuration

* Shorten keepalive key

* Fix casing on keepalive

* Add annotated keepalive value to peer functions
2020-02-13 10:16:55 +01:00
Lucas Servén Marín
63987713dd
pkg/k8s: update generated files 2020-01-09 00:15:36 +01:00
Lucas Servén Marín
5277ab5bad
docs,pkg: use new well-known region label
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.
2020-01-07 18:41:55 +01:00
Lucas Servén Marín
8e755cf52e
pkg: allow overriding internal IP
This addresses the request for enhancement in
https://github.com/squat/kilo/issues/7.
2019-07-15 17:24:35 +02:00
Lucas Servén Marín
4d9c203603
pkg/mesh,cmd: add WireGuard IP to Nodes
This allows admins or users to have some easy visibility into the
configuration of the Kilo cluster.
2019-05-10 02:06:02 +02:00
Lucas Servén Marín
034c27ab78
pkg: fix reconciling peer updates 2019-05-08 17:13:24 +02:00
Lucas Servén Marín
90e68c7735
cmd/kgctl: add output options for showconf
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.
2019-05-08 01:31:36 +02:00
Lucas Servén Marín
b3a3c37e0a
*: add complete CNI support
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.
2019-05-07 01:49:59 +02:00
Lucas Servén Marín
85180a80cc
pkg/k8s/apis: make more fields optional 2019-05-03 14:08:13 +02:00
Lucas Servén Marín
160e0bb3e8
Makefile: fix go modules 2019-05-03 13:49:50 +02:00
Lucas Servén Marín
2425a06cd8
*: add peer VPN support
This commit adds support for defining arbitrary peers that should have
access to the VPN. In k8s, this is accomplished using the new Peer CRD.
2019-05-03 12:53:44 +02:00
Lucas Servén Marín
72bfb762b9
pkg/{k8s,mesh}: introduce liveness checks
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.
2019-04-02 18:28:27 +02:00
Lucas Serven
e989f0a25f
init 2019-01-18 02:50:10 +01:00