docker tag ignores variables

[jeremyeder]

I'm trying to build, tag and push many images to an internal registry.

IMAGES="image1 image2 image3"
REGISTRY=myregistry.domain.local
for i in $IMAGES
        do
                docker build -t $i - < Dockerfile_$i
                docker tag $i $REGISTRY/$i
                docker push $REGISTRY/$i

docker tag sees $REGISTRY as literal rather than the variable contents which are a hostname.

Possible solution in #5603 but I think this is it's own bug, or at least unexpected behavior.

http://docs.docker.com/userguide/dockerimages/#setting-tags-on-an-image

[jeremyeder]

@rhatdan

[gesellix]

your example seems to work for me as expected - using bash. which shell are you using?