When Postgres is used as the backing database for headscale,
it does not set a limit on maximum open and idle connections
which leads to hundreds of open connections to the Postgres
server.
This commit introduces the configuration variables to set those
values and also sets default while opening a new postgres connection.
This commit simplifies the goreleaser configuration and then adds nfpm
support which allows us to build .deb and .rpm for each of the ARCH we
support.
The deb and rpm packages adds systemd services and users, creates
directories etc and should in general give the user a working
environment. We should be able to remove a lot of the complicated,
PEBCAK inducing documentation after this.
Signed-off-by: Kristoffer Dalby <kristoffer@tailscale.com>
This commit adds a default OpenID Connect expiry to 180d to align with
Tailscale SaaS (previously infinite or based on token expiry).
In addition, it adds an option use the expiry time from the Token sent
by the OpenID provider. This will typically cause really short expiry
and you should only turn on this option if you know what you are
desiring.
This fixes #1176.
Co-authored-by: Even Holthe <even.holthe@bekk.no>
Signed-off-by: Kristoffer Dalby <kristoffer@tailscale.com>
Currently the most "secret" way to specify the oidc client secret is via
an environment variable `OIDC_CLIENT_SECRET`, which is problematic[1].
Lets allow reading oidc client secret from a file. For extra convenience
the path to the secret will resolve the environment variables.
[1]: https://systemd.io/CREDENTIALS/
Adds knobs to configure three aspects of the OpenID Connect flow:
* Custom scopes to override the default "openid profile email".
* Custom parameters to be added to the Authorize Endpoint request.
* Domain allowlisting for authenticated principals.
* User allowlisting for authenticated principals.
Websockets, in which DERP is based, requires a TLS certificate. At the same time,
if we use a certificate it must be valid... otherwise Tailscale wont connect (does not
have an Insecure option). So there is no option to expose insecure here
