cutadapt:1.14: Dockerfile ubuntu -> alpine

src/docker_modules/cutadapt/1.14/Dockerfile

-FROM ubuntu:18.04
+FROM alpine:3.8
 MAINTAINER Laurent Modolo
 
 ENV CUTADAPT_VERSION=1.14
-ENV PACKAGES build-essential=12.4* \
-             python3-pip=9.0.1* \
-             python3-setuptools=39.0.1* \
-             python3-dev=3.6.5* \
-             python3-wheel=0.30.0*
+ENV PACKAGES python3 \
+             python3-dev \
+             musl-dev \
+             gcc
 
-RUN apt-get update && \
-    apt-get install -y --no-install-recommends ${PACKAGES} && \
-    apt-get clean
+RUN apk update && \
+    apk add ${PACKAGES}
 
 RUN pip3 install cutadapt==${CUTADAPT_VERSION}