cljocker
A simple DSL to define and generate Dockerfile
Examples
To generate a Dockerfile from spec:
(:require [cljocker.hh.dsl.docker :as d])
(defn- heap [heap] (str "-Xmx=" heap "m "))
(defn- port [port] (str "-Dport=" port))
(-> [:from "java:8"
:run (lazy-seq ["mkdir" "-p" "/var/opt/folder"])
:user "nobody"
:add ["from" "to"]
:workdir "/var/opt/folder"
:cmd ["java" (heap 512) (port 512) ["-jar" "artifact.jar"]]]
(d/new-dockerfile)
(d/write! "path/to/dockerfile")) The content of the generated Dockerfile will be:
FROM java:8
RUN mkdir -p /var/opt/folder
USER nobody
ADD from to
WORKDIR /var/opt/folder
CMD java -Xmx=512m -Dport=512 -jar artifact.jar To validate a dockerfile spec:
(:require [cljocker.hh.dsl.docker :as d])
(is (= [:valid]
(-> [:from "image" :cmd "echo"]
(d/new-dockerfile)
(d/validate))))
(is (= [:invalid "first instruction must be FROM"]
(-> [:cmd "echo"]
(d/new-dockerfile)
(d/validate))))License
Copyright © 2016 Distributed under the Eclipse Public License
