The Candid server provides a macaroon-based authentication service.

The easiest way to start using the candid service is with the snap:

snap install candid

The configuration file used by the snap can be found in /var/snap/candid/current/config.yaml.

Candid requires go1.11 or later to build. This is available in the go snap:

snap install go

Go will additionally require installing the following packages in order that it can fetch and build candid dependencies:

apt install build-essential bzr git

Get the source from github.com/canonical/candid.

git clone https://github.com/canonical/candid

It is recommended that you check out the source outside of any $GOPATH ($HOME/go by default). If you do wish to check out into a $GOPATH then you will need to set the environment variable GO111MODULE=on.

The store/mgostore component additionally requires a running mongodb server, this may be running on a different system. The location of the mongodb server should be specified in an environment variable called MGOCONNECTIONSTRING, if this does not exist then the standard port (27017) on localhost will be assumed. To disable testing of store/mgostore completely then set the environment variable MGOTESTDISABLE=1.

The store/sqlstore component additionally requires a running postgresql, this may be running on a different system. The posgresql system to use is specified using the standard postgresql environment variables. To skip running postgresql tests set the environment variable PGTESTDISABLE=1.

Tests are run by running make check in the root of the source tree. The tests for a single package can be run by running go test in the package directory.