clean up logging of initial scan of droplets

Signed-off-by: Jeff Carr <jcarr@wit.com>

README

@@ -16,6 +16,7 @@ Notes & Goals:
 
 * Be super easy to use.
 * Automatically map access to serial and graphical consoles
+* Only temporarily generate libvirt XML files for virsh create
 * This is intended for managing Virtual Machines, not for containers
 * This often uses the DO nomenclature 'droplets' instead of 'virtual machines' or 'domU'
 * Every droplet is considered hostile

event.go

@@ -23,6 +23,9 @@ func (h *HyperT) RestartDaemon() {
 	dur := time.Since(h.lastpoll) // Calculate the elapsed time
 	log.Info("KILLED DAEMON", h.Hostname, shell.FormatDuration(dur), "curl", url)
 	me.killcount += 1
+
+	// mark the cluster as unstable so droplet starts can be throttled
+	me.unstable = time.Now()
 }
 
 var stableTimeout time.Duration = 43 * time.Second

http.go

@@ -28,7 +28,7 @@ func okHandler(w http.ResponseWriter, r *http.Request) {
 			}
 			dur := time.Since(d.lastpoll) // Calculate the elapsed time
 			if d.CurrentState != "ON" {
-				fmt.Fprintln(w, "BAD  STATE   ", d.Hostname, "State =", d.State, "CurrentState =", d.CurrentState, shell.FormatDuration(dur))
+				fmt.Fprintln(w, "BAD  STATE   ", d.Hostname, d.hname, "(", d.State, "vs", d.CurrentState, ")", shell.FormatDuration(dur))
 			} else {
 				dur := time.Since(d.lastpoll) // Calculate the elapsed time
 				fmt.Fprintln(w, "GOOD STATE ON", d.Hostname, d.hname, shell.FormatDuration(dur))

poll.go

@@ -32,29 +32,44 @@ func (h *HyperT) pollHypervisor() {
 		if state == "ON" {
 			log.Log(POLL, h.Hostname, "STATE:", state, "HOST:", name, "rest:", fields[2:])
 			d := findDroplet(name)
-			if d != nil {
-				log.Log(INFO, "ALREADY RECORDED", d.Hostname)
+			if d == nil {
+				// this is a new unknown droplet (not in the config file)
+				d = new(DropletT)
+				d.Hostname = name
+				d.hname = h.Hostname
 				d.lastpoll = time.Now()
 				d.CurrentState = "ON"
-				// log.Info("ALREADY RECORDED", d.Hostname, d.lastpoll)
-				if d.hname == "" {
-					log.Log(EVENT, "DROPLET", d.Hostname, "PROBABLY WAS NEVER POLLED YET")
-				}
-				if d.hname != h.Hostname {
-					log.Log(EVENT, "DROPLET", d.Hostname, "MOVED FROM", d.hname, "TO", h.Hostname)
-					d.hname = h.Hostname
-				}
+				me.droplets = append(me.droplets, d)
+				log.Log(EVENT, name, "IS NEW. ADDED ON", h.Hostname)
+			}
+			log.Log(INFO, "ALREADY RECORDED", d.Hostname)
+
+			// update the status to ON and the last polled value
+			d.CurrentState = "ON"
+			d.lastpoll = time.Now()
+
+			// this means the droplet is still where it was before
+			if d.hname == h.Hostname {
 				continue
 			}
-			// this is a new unknown droplet (not in the config file)
-			d = new(DropletT)
-			d.Hostname = name
+
+			if d.hname == "" {
+				// this means the droplet was in the config file
+				// but this is the first time it's shown up as running
+
+				// this should mean a droplet is running where the config file says it probably should be running
+				if d.hyperPreferred == h.Hostname {
+					log.Log(EVENT, "new droplet", d.Hostname, "(matches config hypervisor", h.Hostname + ")")
+					d.hname = h.Hostname
+					continue
+				}
+
+				log.Log(EVENT, "new droplet", d.Hostname, "was not in the config file")
+				log.Log(EVENT, "new droplet", d.Hostname, "moved", d.hname, h.Hostname, "config file hypervisor =", d.hname)
+			}
 			d.hname = h.Hostname
-			d.lastpoll = time.Now()
-			d.CurrentState = "ON"
-			me.droplets = append(me.droplets, d)
-			log.Log(EVENT, name, "IS NEW. ADDED ON", h.Hostname)
 		}
+		continue
 	}
 	h.lastpoll = time.Now()
 	h.killcount = 0 // poll worked. reset killcount