* pkg/mesh/routes.go: add flag for generic ACCEPT in FORWARD chain
Some linux distros or docker will set the default policy in the FORWARD
chain in the filter table to DROP. With the new ip-tables-forward-rules
flag a generic ACCEPT for all packages going from and to the pod subnet
is added to the FORWARD chain.
Signed-off-by: leonnicolas <leonloechner@gmx.de>
* Update cmd/kg/main.go
Co-authored-by: Lucas Servén Marín <lserven@gmail.com>
* Update cmd/kg/main.go
Co-authored-by: Lucas Servén Marín <lserven@gmail.com>
`cobra` automatically prints and error if `runE` returns an error.
Since we explicitly print the error, we need to silence cobra.
Signed-off-by: leonnicolas <leonloechner@gmx.de>
This commit adds a sub command `webhook` to Kilo.
It will start a https web server that answeres request from a Kubernetes
API server to validate updates and creations of Kilo peers.
It also updates the "Peer Validation" docs to enable users to
install the web hook server and generate the self signed certificates in
the cluster by only applying a manifest.
Signed-off-by: leonnicolas <leonloechner@gmx.de>
Apply suggestions from code review
Co-authored-by: Lucas Servén Marín <lserven@gmail.com>
This commit uses cobra instead of pflags in kg to handle flags in preparation to add a new subcommand
for the webhook server.
Signed-off-by: leonnicolas <leonloechner@gmx.de>
docker: add missing fonts for rasterized graphviz output formats
add missing license header
kg: do not export handlers
use http package for status codes
keep checks for errors in a single line
simplify error message about failed invocation of dot
pass node hostname and subnet to graph handler
use SVG as default format for graph handler
register health handler with HandleFunc
add option for selecting layout to graph handler and using circo as new default
e2e: add tests for HTTP handlers
e2e: fix and simplify handler tests
add should comments to assertions
e2s: use assert_fail instead of assert _not
add missing mime-type header for graph handler
use switch/case statements for validating formats / layouts
e2e: fix handlers tests
Co-authored-by: leonnicolas <60091705+leonnicolas@users.noreply.github.com>
graph-handler: add missing font to Dockerfile
Dockerfile: remove unnecessary font
This commit leaves Noto as the only font package, as one font package is
sufficient for the container.
Signed-off-by: Lucas Servén Marín <lserven@gmail.com>
This commit standardizes how we display a `note` in our docs.
Previously, we used a mix of `_Note_:`, `__Note:__`, `> Note`, and `>
**Note**:` among others. Now, all notes appear as `> **Note**:`.
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>
This commit adds better handling of the default kubeconfig location in
the kgctl binary for cases where the `$KUBECONFIG` environment variable
is not set. In these cases, kgctl will default to
`$HOME/.kube/config`, putting it in line with tools like `kubectl` and
`kind`.
Signed-off-by: Lucas Servén Marín <lserven@gmail.com>
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>
This commit introduces a new `--resync-period` flag to control how often
the Kilo controllers should reconcile.
Signed-off-by: Lucas Servén Marín <lserven@gmail.com>
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 makes it possible to specify the Kilo interface name. If the
specified interface exists, it will be used; if it does not exist, Kilo
will create it. If the interface already existed, then it will not be
deleted on shutdown; otherwise Kilo will destroy the interface.
Fixes: https://github.com/squat/kilo/issues/8
Addresses: 1/2 of https://github.com/squat/kilo/issues/17
This commit adds basic support to run in compatibility mode with
Flannel. This allows clusters running Flannel as their principal
networking solution to leverage some advances Kilo features. In certain
Flannel setups, the clusters can even leverage muti-cloud. For this, the
cluster needs to either run in a full mesh, or Flannel needs to use the
API server's external IP address.
We need to defensively deduplicate peer allowed IPs.
If two peers claim the same IP, the WireGuard configuration
could flap, causing the interface to churn.
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.
Today, net.Listen will only listen on 127.0.0.1 if localhost is passed
[0]. Listening on `:8080` will open a dualstack socket on OSs that
support it.
[0] https://github.com/golang/go/issues/9334
