work with latest docker

Signed-off-by: Alex Suraci <asuraci@pivotal.io>
container exposes external IP in .Info

Signed-off-by: Alex Suraci <asuraci@pivotal.io>
stop installing strace; it's now in the image

Signed-off-by: Alex Suraci <asuraci@pivotal.io>
force rebuilding of packages with -tags daemon

Signed-off-by: Alex Suraci <asuraci@pivotal.io>