lambdaisland / exoscale

Clojure/Babashka wrapper for the Exoscale HTTP API

lambdaisland.exoscale

A Clojure/Babashka wrapper for the Exoscale API.

The Exoscale API is fairly straightforward to use, except that it requires requests to be signed, which is a bit fiddly to get right.

Exoscale offers multiple APIs with different authorization requirements. This library supports the v1 Compute API (api.exoscale.com) and the OpenAPI-based v2. See the Exoscale API docs for details

The alternative is to shell out to the exo command line tool, but that doesn't expose everything that you can do with the API.

Exoscale provides example implementations in Go and Python, here is one now that you can use from Clojure.

HMAC digest

We shell out to openssl for this. There are JDK classes for this as well, but they are not available in Babashka. So you need openssl on your $PATH.

Authentication

We try to look up credentials in

• ~/.config/exoscale/exoscale.toml (same as exo CLI on Linux)
• ~/Library/Application Support/exoscale/exoscale.toml (same as exo CLI on Mac OS X)
• $EXOSCALE_API_KEY / $EXOSCALE_API_SECRET (same as exo CLI)
• $TF_VAR_exoscale_api_key / $TF_VAR_exoscale_secret_key (for Terraform users)

You can also explicitly provide a :creds [key secret] option to any of the request methods.

API

(require '[lambdaisland.exoscale :as exo])

(exo/get-v1 "/compute?command=listVirtualMachines")

(exo/get-v2 "/v2/zone")