first working draft of alpine image version

alpine/Dockerfile

@@ -0,0 +1,59 @@
+FROM alpine:3.10
+
+ARG gdal_version='2.4.2-r1'
+ENV GDAL_VERSION=${gdal_version}
+
+# Setup fetch deps
+RUN set -ex && \
+ apk update && \
+ apk add --no-cache --virtual .fetch-deps tar openssl git
+
+# Fetch source code
+RUN set -x && \
+  mkdir -p ctbtemp && cd ctbtemp && \
+  git clone https://github.com/ahuarte47/cesium-terrain-builder.git && \
+  cd cesium-terrain-builder && \
+  git checkout master-quantized-mesh
+
+# Setup build deps
+RUN set -ex && \  
+  apk add --no-cache --virtual .build-deps \
+    make cmake libxml2-dev
+
+RUN set -ex && \
+  apk add --no-cache --virtual .build-deps-edge \
+    --repository http://dl-cdn.alpinelinux.org/alpine/edge/main \
+    --repository http://dl-cdn.alpinelinux.org/alpine/edge/community \    
+    g++ gdal-dev=$GDAL_VERSION
+
+# Build & install cesium terrain builder
+RUN set -x && \
+  cd /ctbtemp/cesium-terrain-builder && \
+  mkdir build && cd build && cmake .. && make install .
+
+# Setup runtime deps
+RUN set -ex && \  
+  apk add --no-cache --virtual .rundeps \
+  bash
+
+RUN set -ex && \  
+  apk add --no-cache --virtual .rundeps-edge \
+    --repository http://dl-cdn.alpinelinux.org/alpine/edge/testing \
+    --repository http://dl-cdn.alpinelinux.org/alpine/edge/community \   
+    gdal=$GDAL_VERSION
+
+# Cleanup
+RUN  set -x && \
+  apk del .fetch-deps .build-deps .build-deps-edge && \
+  rm -rf /tmp/* && \
+  rm -rf /ctbtemp
+
+# Add some basic aliases
+RUN  echo 'alias ..="cd .."' >> ~/.bashrc && \
+  echo 'alias l="ls -CF --group-directories-first --color=auto"' >> ~/.bashrc && \
+  echo 'alias ll="ls -lFh --group-directories-first --color=auto"' >> ~/.bashrc && \
+  echo 'alias lla="ls -laFh --group-directories-first  --color=auto"' >> ~/.bashrc
+
+WORKDIR /data
+
+CMD ["bash"]