added health check method
added health check method

amsokol/openshift-golang-template,manuelkasiske/openshift-golang-template,korasdor/openshift-golang-template,manuelkasiske/openshift-golang-template,korasdor/openshift-golang-template,amsokol/openshift-golang-template,manuelkasiske/openshift-golang-template,manuelkasiske/openshift-golang-template