Unicorn heathcheck
Adding in the unicorn healthcheck to fix: https://gitlab.com/charts/helm.gitlab.io/issues/69
Relies/includes on other fixes for our helm charts from here: https://gitlab.com/charts/helm.gitlab.io/merge_requests/20
And a in-review unicorn container from here: gitlab-org/build/CNG!25 (merged)
Edited by Jason Plum