chore(travis): add DEV_REGISTRY

Author: duanhongyi

.travis.yml

@@ -3,7 +3,7 @@ sudo: required
 services:
   - docker
 script:
-  - make docker-build test
+  - DEV_REGISTRY="docker.io" make docker-build test
 notifications:
   slack:
     rooms:

Makefile

@@ -3,6 +3,7 @@
 # - Docker image name
 # - Kubernetes service, deployment, pod names
 SHORT_NAME := registry
+DRYCC_REGISTRY ?= ${DEV_REGISTRY}
 PLATFORM ?= linux/amd64,linux/arm64
 
 include includes.mk versioning.mk
@@ -21,9 +22,6 @@ DEV_ENV_CMD := ${DEV_ENV_PREFIX} ${DEV_ENV_IMAGE}
 LDFLAGS := "-s -w -X main.version=${VERSION}"
 BINDIR := ./rootfs/opt/registry/sbin
 
-# Legacy support for DEV_REGISTRY, plus new support for DRYCC_REGISTRY.
-DRYCC_REGISTRY ?= ${DEV_REGISTRY}
-
 ifeq ($(STORAGE_TYPE),)
   STORAGE_TYPE = fs
 endif