update

.drone.yml

@@ -8,7 +8,8 @@ steps:
   privileged: true
   commands:
     - img login -u "drone" -p "$PASSWORD" d.xr.to
-    - PUSH=y DOCKER=img ./build-tagged.sh
+    - DOCKER_EXEC=img ./build-tagged.sh
+    - img push d.xr.to/base
   environment:
     PASSWORD:
       from_secret: pass

Makefile

@@ -40,6 +40,7 @@ default: all
 
 vars:
 	@echo MAINTAINER=$(MAINTAINER)
+	@echo DOCKER_EXEC=$(DOCKER_EXEC)
 	@echo IMAGE=$(IMAGE)
 	@echo ARCH=$(ARCH)
 	@echo REPO_ROOT=$(REPO_ROOT)

README.md

@@ -45,6 +45,8 @@ No core utils are installed at all.
 ```makefile
 # Email address of maintainer
 MAINTAINER?==@eater.me
+# Docker executable to use (default: docker, but img may be used)
+DOCKER_EXEC?=docker
 # Name of image
 IMAGE?=d.xr.to/base
 # Arch to be used