1. To check that Hermod is alive, and view the running instance id and version, use the following command. Make sure to use the correct port:

   Example: Health check

   GET https://my-hermod-server:20400/<contextPath>/info
    
   Response 200 OK
   Body
   {
      "id":"hermod.6d99c1",
      "build":{
         "version":"2.0.0.RELEASE",
         "artifact":"cod-hermod",
         "name":"Cod Hermod",
         "group":"com.nexusgroup.cod.hermod",
         "time":1497432675000
      }
   }

1. To check health information and status for the running Hermod, use the following command. Make sure to use the correct port: 

   Example: Health check

   GET https://my-hermod-server:20400/<contextPath>/health
   
   {
     "status":"UP",
     "diskSpace":{
        "status":"UP",
        "total":15442378752,
        "free":2757484544,
        "threshold":10485760
     },
     "db":{
        "status":"UP",
        "database":"PostgreSQL",
        "hello":1
     },  
   
     "configServer":{
        "status":"UP",
     },
     "hystrix":{     
        "status":"UP" 
     }
   }

These are the built-in statuses:

1. To check the logs:

   Example: Check logs

   # Login to the host
   ssh user@machine
   su - docker
    
   # Check logs
   cd compose/hermod
   docker-compose logs -f --tail=100

Hermod stores metrics since the last restart. These can be viewed via a http request.

1. To view the Hermod metrics:

   Example: Check metrics

   # Find the current port for an Hermod instance (33700 in this case)
   docker-compose ps | grep hermod_hermod
   hermod_hermod_1            ./fatjar-entrypoint.sh app ...   Up      0.0.0.0:33700->20400/tcp
    
   # Use curl to get metrics (You can use https://jsonformatter.curiousconcept.com/ to format the output)
   curl  http://localhost:33600/<contextPath>/metrics
    
   {
      "mem":673568,
      "mem.free":336830,
      "processors":2,
      "instance.uptime":57997012,
      "uptime":58006488,
      "systemload.average":0.0,
      "heap.committed":579072,
      "heap.init":112640,
      "heap.used":242241,
      "heap":1585664,
      "nonheap.committed":96768,
      "nonheap.init":2496,
      "nonheap.used":94496,
      "nonheap":0,
      "threads.peak":50,
      "threads.daemon":23,
      "threads.totalStarted":2493,
      "threads":49,
      "classes":10343,
      "classes.loaded":10343,
      "classes.unloaded":0,
      "gc.ps_scavenge.count":22,
      "gc.ps_scavenge.time":294,
      "gc.ps_marksweep.count":2,
      "gc.ps_marksweep.time":142,
      ...
   }