Configure docker build

.dockerignore

@@ -0,0 +1,6 @@
+.cpcache
+.shadow-cljs
+node_modules
+resources/public/js
+.git
+target

Dockerfile

@@ -0,0 +1,17 @@
+FROM theasp/clojurescript-nodejs:shadow-cljs-alpine as build
+WORKDIR /app
+# RUN apk --no-cache add python alpine-sdk
+
+COPY package.json package-lock.json deps.edn shadow-cljs.edn /app/
+RUN npm ci
+
+COPY . .
+RUN clojure -A:cljs -m shadow.cljs.devtools.cli release app
+RUN clojure -A:uberjar
+
+FROM alpine:3.9
+RUN apk add --no-cache openjdk8
+WORKDIR /app
+COPY --from=build /app /app
+RUN cd /app/target/ && mv *-standalone.jar app-standalone.jar
+CMD java -cp /app/target/app-standalone.jar heyarne.all_my_friends.server

deps.edn

@@ -1,6 +1,6 @@
 {:paths ["src" "resources"]
- :extra-paths ["resources"]
- :deps {environ {:mvn/version "1.1.0"}
+ :deps {org.clojure/clojure {:mvn/version "1.10.1"}
+        environ {:mvn/version "1.1.0"}
         http-kit {:mvn/version "2.3.0"}
         compojure {:mvn/version "1.6.1"}
         ring-logger {:mvn/version "1.0.1"}}

src/heyarne/all_my_friends/server.clj

@@ -26,7 +26,7 @@
 
 
 (defn -main [& args]
-  (let [port (env :port 8081)]
+  (let [port (Integer/parseInt (env :port "8081"))]
     (println "Starting server on port" port)
     (reset! server (->  #'app
                         (logger/wrap-with-logger)