Docker mix and match setup

Rewrite of the docker setup. Now uses fig to manage containers and container
linkage. The base is a block based mix and match, which will give you the
possibility to easily test all configurations.

docker/assemble_blocks.sh

@@ -0,0 +1,72 @@
+#!/bin/bash
+
+blocks_dir=blocks
+docker_dir=docker
+template_dir=templates
+
+docker_file=Dockerfile
+
+gogs_config_file=conf.tmp
+gogs_config=config
+gogs_init_file=$docker_dir/init_gogs.sh
+
+fig_file=fig.yml
+fig_config=fig
+
+gogs_init_template=$template_dir/init_gogs.sh.tpl
+
+if [ "$#" == 0 ]; then
+    blocks=`ls $blocks_dir`
+    if [ -z "$blocks" ]; then
+        echo "No Blocks available in $blocks_dir"
+    else
+        echo "Available Blocks:"
+        for block in $blocks; do
+            echo "    $block"
+        done
+    fi
+    exit 0
+fi
+
+for file in $gogs_config_file $fig_file; do
+    if [ -e $file ]; then
+        echo "Deleting $file"
+        rm $file
+    fi
+done
+
+for dir in $@; do
+    current_dir=$blocks_dir/$dir
+    if [ ! -d "$current_dir" ]; then
+        echo "$current_dir is not a directory"
+        exit 1
+    fi
+
+    if [ -e $current_dir/$docker_file ]; then
+        echo "Copying $current_dir/$docker_file to $docker_dir/$docker_file"
+        cp $current_dir/$docker_file $docker_dir/$docker_file
+    fi
+
+    if [ -e $current_dir/$gogs_config ]; then
+        echo "Adding $current_dir/$gogs_config to $gogs_config_file"
+        cat $current_dir/$gogs_config >> $gogs_config_file
+        echo "" >> $gogs_config_file
+    fi
+
+    if [ -e $current_dir/$fig_config ]; then
+        echo "Adding $current_dir/$fig_config to $fig_file"
+        cat $current_dir/fig >> $fig_file
+        echo "" >> $fig_file
+    fi
+done
+
+echo "Creating $gogs_init_file"
+sed "/{{ CONFIG }}/{
+r $gogs_config_file
+d
+}" $gogs_init_template > $gogs_init_file
+
+if [ -e $gogs_config_file ]; then
+    echo "Removing temporary GoGS config"
+    rm $gogs_config_file
+fi