fsl: update dockerfile from new docs site

Author: rkm

software/FSL/Dockerfile

@@ -0,0 +1,29 @@
+FROM ubuntu:20.04
+
+ARG FSL_VERSION="6.0.7.9"
+
+ENV FSLDIR="/usr/local/fsl"
+
+RUN : \
+    && apt-get update -qq \
+    && DEBIAN_FRONTEND=noninteractive apt-get install \
+        -qq -y --no-install-recommends \
+        ca-certificates \
+        curl \
+        libgomp1 \
+        libgtk2.0-0 \
+        libquadmath0 \
+        mesa-utils \
+        python3 \
+    && apt-get clean \
+    && rm -rf /var/lib/apt/lists/* \
+    && :
+
+RUN : \
+    && set -eu \
+    && curl -sLo fslinstaller.py https://fsl.fmrib.ox.ac.uk/fsldownloads/fslconda/releases/fslinstaller.py \
+    && python3 fslinstaller.py -d /usr/local/fsl --skip_registration --fslversion "${FSL_VERSION}" \
+    && rm fslinstaller.py \
+    && :
+
+ENTRYPOINT [ "sh", "-c", ". /usr/local/fsl/etc/fslconf/fsl.sh && /bin/bash" ]

software/FSL/README.md

@@ -1,6 +1,8 @@
 # FSL
 
-https://fsl.fmrib.ox.ac.uk/fsl/fslwiki
+https://fsl.fmrib.ox.ac.uk/fsl/docs/#/
+
+Old site at https://fsl.fmrib.ox.ac.uk/fsl/fslwiki
 
 ## Docker containers
 
@@ -22,6 +24,10 @@ docker run --rm -it \
     <image-name>
 ```
 
+### FSL Documentation
+
+The new FSL site provides [these](https://fsl.fmrib.ox.ac.uk/fsl/docs/#/install/container?id=install-fsl-into-a-dockersingularity-container) instructions. This has been translated into the main `Dockerfile` in this directory.
+
 ### Neurodocker
 
 Using [neurodocker](https://www.repronim.org/neurodocker/index.html):