Rollback #153 as it breaks storage volumes, closes #27 (#161)

Keeping tzdata pkg

etc/docker/defaults/start-inbucket.sh

@@ -3,7 +3,22 @@
 # description: start inbucket (runs within a docker container)
 
 INBUCKET_HOME="/opt/inbucket"
+CONF_SOURCE="$INBUCKET_HOME/defaults"
+CONF_TARGET="/config"
 
 set -eo pipefail
 
+install_default_config() {
+  local file="$1"
+  local source="$CONF_SOURCE/$file"
+  local target="$CONF_TARGET/$file"
+
+  if [ ! -e "$target" ]; then
+    echo "Installing default $file to $CONF_TARGET"
+    install "$source" "$target"
+  fi
+}
+
+install_default_config "greeting.html"
+
 exec "$INBUCKET_HOME/bin/inbucket" $*