docker-for-aws in clojure using amazonica

build.boot

(set-env!
 :source-paths #{"src/clj"}
 :resource-paths #{"resources"}

 :dependencies '[[org.clojure/clojure "1.9.0-alpha14"]
                 [amazonica "0.3.78"]])

docker-for-aws.clj

(ns docker-for-aws
  (:require [amazonica.aws.cloudformation :as cf]))

(def key-pair-name "testing-docker-for-aws") ;; obviously use a key you have here
(def docker-for-aws-beta-template-url
  "https://docker-for-aws.s3.amazonaws.com/aws/beta/aws-v1.13.0-rc2-beta12.json")

(defn create-docker-stack []
  (cf/create-stack {:endpoint "eu-central-1"}
                   :stack-name "test-stack-1"
                   :template-url docker-for-aws-beta-template-url
                   :capabilities ["CAPABILITY_IAM"]
                   :parameters [{:parameter-key "KeyName"
                                 :parameter-value key-pair-name}
                                {:parameter-key "InstanceType"
                                 :parameter-value "t2.micro"}
                                {:parameter-key "ManagerInstanceType"
                                 :parameter-value "t2.micro"}
                                {:parameter-key "ClusterSize"
                                 :parameter-value "1"}]))

finding-the-default-dns.clj

(ns finding-the-default-dns
  (:require [amazonica.aws.elasticloadbalancing :as elb]))
;; Just a simple hack to get the public dns of the default configured ELB
(defn find-default-dns-target []
  (->> (elb/describe-load-balancers {:endpoint "eu-central-1"})
       :load-balancer-descriptions
       (filter #(-> %
                    :load-balancer-name
                    (clojure.string/starts-with? "test-stack-1")))
       first
       :dnsname))

Oh, of course you need an AWS account, configured aws keys (~/.aws/credentials, environment variables or machine roles etc) and a clojure project with amazonica.