Dockerfile.py aborts on error now, workaround whiptail not being wrapped by unattended

Signed-off-by: Adam Hill <adam@diginc.us>

Dockerfile.py

@@ -112,8 +112,9 @@ def run_and_stream_command_output(command, args):
                 print(line, end='')
     build_result.wait()
     if build_result.returncode != 0:
-        print("     ::: Error running".format(command))
+        print("     ::: Error running {}".format(command))
         print(build_result.stderr)
+        sys.exit(build_resuilt.returncode)
 
 
 def build(docker_repo, arch, args):

Dockerfile.sh

@@ -1,8 +1,9 @@
-#!/usr/bin/env sh
+#!/usr/bin/env bash
+
 # alpine sh only
 
 set -eux
-./Dockerfile.py -v --arch="${ARCH}" --hub_tag="${ARCH_IMAGE}"
+./Dockerfile.py -v --no-cache --arch="${ARCH}" --hub_tag="${ARCH_IMAGE}"
 # TODO: Add junitxml output and have circleci consume it
 # 2 parallel max b/c race condition with docker fixture (I think?)
 py.test -vv -n 2 -k "${ARCH}" ./test/

install.sh

@@ -15,6 +15,7 @@ fi
 
 apt-get update
 apt-get install --no-install-recommends -y curl procps ca-certificates
+ln -s `which echo` /usr/local/bin/whiptail
 curl -L -s $S6OVERLAY_RELEASE | tar xvzf - -C /
 mv /init /s6-init