use compose project name in deploy, add push script

deploy.sh

@@ -1,3 +1,7 @@
 #!/bin/bash
+# COMPOSE_PROJECT_NAME should be a unique string for this deployment. Otherwise, if you run multiple deployments, docker-compose down may take down a previous deployment with the same COMPOSE_PROJECT_NAME or parent folder name
+
+COMPOSE_PROJECT_NAME=mindustry-server
+
 docker-compose down
 docker-compose up -d

push.sh

@@ -0,0 +1,2 @@
+#!/bin/bash
+docker-compose -f docker-compose.build.yml push mindustry