build-and-push.sh script in health-checks is no longer executable

[TechnoRoss]

The script will not run unless you chmod +x... This was not the case before, so I am assuming recent tweaks lost that bit.

[bkatiemills]

Where are you running this? bash build-and-push.sh works for me on a VM spun up by train.

[TechnoRoss]

lab guide for 9.1.2.2:

$ export MY_DOCKER_ID= $ ./build-and-push.sh

If your solution is correct, then that needs updating to read $ bash build-and-push.sh

[bkatiemills]

thanks, @TechnoRoss! fixed per your suggestion in PR above.