FS-10090: [Build-System] Add Docker files for master and release #resolve

docker/master/docker-entrypoint.sh

@@ -0,0 +1,27 @@
+#!/bin/bash
+set -e
+
+# Source docker-entrypoint.sh:
+# https://github.com/docker-library/postgres/blob/master/9.4/docker-entrypoint.sh
+# https://github.com/kovalyshyn/docker-freeswitch/blob/vanilla/docker-entrypoint.sh
+
+if [ "$1" = 'freeswitch' ]; then
+
+    if [ ! -f "/etc/freeswitch/freeswitch.xml" ]; then
+        mkdir -p /etc/freeswitch
+        cp -varf /usr/share/freeswitch/conf/vanilla/* /etc/freeswitch/
+    fi
+
+    chown -R freeswitch:freeswitch /etc/freeswitch
+    chown -R freeswitch:freeswitch /var/{run,lib}/freeswitch
+    
+    if [ -d /docker-entrypoint.d ]; then
+        for f in /docker-entrypoint.d/*.sh; do
+            [ -f "$f" ] && . "$f"
+        done
+    fi
+    
+    exec gosu freeswitch /usr/bin/freeswitch -u freeswitch -g freeswitch -nonat -c
+fi
+
+exec "$@"