Fixing name of dockerfiles

HorovodKeras/Makefile

@@ -3,7 +3,7 @@ PWD:=$(shell pwd)
 FAKE:='False'
 FAKE_DATA_LENGTH:=1281167
 name_prefix:=caia/distributed-training
-image:=$(name_prefix)/horovod-keras
+image:=$(name_prefix).horovod-keras
 dockerfile:=$(PWD)/Docker
 script:=\$$AZ_BATCHAI_INPUT_SCRIPTS/imagenet_keras_horovod.py
 include ../include/build.mk

HorovodPytorch/Makefile

@@ -3,7 +3,7 @@ PWD:=$(shell pwd)
 FAKE:='False'
 FAKE_DATA_LENGTH:=1281167
 name_prefix:=caia/distributed-training
-image:=$(name_prefix)/horovod-pytorch
+image:=$(name_prefix).horovod-pytorch
 dockerfile:=$(PWD)/Docker
 script:=\$$AZ_BATCHAI_INPUT_SCRIPTS/imagenet_pytorch_horovod.py
 include ../include/build.mk

HorovodTF/Makefile

@@ -4,7 +4,7 @@ PWD:=$(shell pwd)
 FAKE:='False'
 FAKE_DATA_LENGTH:=1281167
 name_prefix:=caia/distributed-training
-image:=$(name_prefix)/horovod-tf
+image:=$(name_prefix).horovod-tf
 dockerfile:=$(PWD)/Docker
 script:=\$$AZ_BATCHAI_INPUT_SCRIPTS/imagenet_estimator_tf_horovod.py
 include ../include/build.mk

Makefile

@@ -8,7 +8,7 @@ endef
 export PROJECT_HELP_MSG
 PWD:=$(shell pwd)
 
-image_name:=caia/distributed-training/control
+image_name:=caia/distributed-training-control
 
 help:
 	echo "$$PROJECT_HELP_MSG" | less