nunjack is a generic health check executor. It can perform an assortment of operations meant to test the health of an application or service and return a standard exit code to indicate the status of the test subject.
nunjack exec <script> [args]
nunjack pid <pid>
nunjack pid-file <file>
nunjack socket <path>
0 Success
10 IO Error
65 User Error
69 Unavailable
77 Permission Rrror
255 Unknown