Docker test file changes (added alpine testing)

Also reworked all the dockerfiles to be cleaner and consistent:

* Fixed some indentation
* Removed vim dependencies
* Collapsed RUN steps for less build layers
* Renamed dockerfiles/ to shorter and more adaptable docker/

docker/alpine-3.7

@@ -0,0 +1,26 @@
+# vim: ft=dockerfile
+FROM alpine:3.7
+MAINTAINER Ingy döt Net <ingy@ingy.net>
+
+RUN apk update && \
+    apk add --no-cache \
+        autoconf \
+        automake \
+        build-base \
+	cmake \
+        git \
+        libtool \
+	perl-dev && \
+    mkdir /libyaml
+
+COPY . /libyaml/
+WORKDIR /libyaml
+
+ENV LD_LIBRARY_PATH=/libyaml/src/.libs
+
+RUN ./bootstrap && \
+    ./configure && \
+    make && \
+    make install
+
+CMD ["bash"]

docker/fedora-25

@@ -5,21 +5,22 @@ MAINTAINER Ian Cordasco <graffatcolmingov@gmail.com>
 # NOTE(sigmavirus24): We need "perl-core" here for the "prove" binary
 # required by the test-all Makefile target
 RUN dnf install -y \
-    automake \
-    gcc \
-    git \
-    make \
-    libtool \
-    perl-core
+        automake \
+        gcc \
+        git \
+        make \
+        libtool \
+        perl-core && \
+    mkdir /libyaml
 
-RUN mkdir /libyaml
 COPY . /libyaml/
 WORKDIR /libyaml
 
 ENV LD_LIBRARY_PATH=/libyaml/src/.libs
 
-RUN ./bootstrap
-RUN ./configure
-RUN make
-RUN make install
+RUN ./bootstrap && \
+    ./configure && \
+    make && \
+    make install
+
 CMD ["bash"]

docker/ubuntu-14.04

@@ -12,18 +12,18 @@ RUN apt-get update && \
         autoconf \
         build-essential \
         git \
-        libtool \
-        vim && \
-    rm -rf /var/lib/apt/lists/*
+        libtool && \
+    rm -rf /var/lib/apt/lists/* && \
+    mkdir /libyaml
 
-RUN mkdir /libyaml
 COPY . /libyaml/
 WORKDIR /libyaml
 
 ENV LD_LIBRARY_PATH=/libyaml/src/.libs
 
-RUN ./bootstrap
-RUN ./configure
-RUN make
-RUN make install
+RUN ./bootstrap && \
+    ./configure && \
+    make && \
+    make install
+
 CMD ["bash"]

docker/ubuntu-16.04

@@ -7,18 +7,18 @@ RUN apt-get update && \
         autoconf \
         build-essential \
         git \
-        libtool \
-        vim && \
-    rm -rf /var/lib/apt/lists/*
+        libtool && \
+    rm -rf /var/lib/apt/lists/* && \
+    mkdir /libyaml
 
-RUN mkdir /libyaml
 COPY . /libyaml/
 WORKDIR /libyaml
 
 ENV LD_LIBRARY_PATH=/libyaml/src/.libs
 
-RUN ./bootstrap
-RUN ./configure
-RUN make
-RUN make install
+RUN ./bootstrap && \
+    ./configure && \
+    make && \
+    make install
+
 CMD ["bash"]