Brought more of ozai over to get started.

.ttarpit.json

@@ -4,5 +4,23 @@
       "Command": "tester",
       "Args": ["-count", "100", "-id", "1"]
     }
+  },
+  "Processes": {
+    "tester2": {
+      "Command": "tester",
+      "Args": ["-count", "100", "-id", "2"]
+    }
+  },
+  "Processes": {
+    "tester3": {
+      "Command": "tester",
+      "Args": ["-count", "100", "-id", "3"]
+    }
+  },
+  "Processes": {
+    "tester4": {
+      "Command": "tester",
+      "Args": ["-count", "100", "-id", "4"]
+    }
   }
 }

main.go

@@ -8,6 +8,7 @@ import (
   "os"
   "errors"
   "lcthw.dev/go/ttarpit/config"
+  "sync"
 )
 
 func LaunchLogger(in io.Reader, out io.Writer, err error) {
@@ -52,6 +53,8 @@ func LaunchProcess(proc *config.Process) {
 func main() {
   config.Load()
 
+  var wg sync.WaitGroup
+
   fmt.Println("CONFIG:", config.Settings.ConfigPath)
   fmt.Println("COMMANDs:", config.Settings.Processes)
 
@@ -59,8 +62,11 @@ func main() {
     fmt.Println("PROCESS:", name)
 
     proc.Ready = make(chan string)
-    go LaunchProcess(&proc)
+    wg.Go(func() {
+      LaunchProcess(&proc)
+    })
   }
 
-
+  fmt.Println("WAITING....")
+  wg.Wait()
 }

tools/cmd/tester/main.go

@@ -3,8 +3,10 @@ package main
 import (
   "fmt"
   "time"
+  "os"
   "flag"
   "sync"
+  "math/rand"
 )
 
 func Worker(name string, count int, done chan<- int, stop <-chan int) {
@@ -16,7 +18,11 @@ func Worker(name string, count int, done chan<- int, stop <-chan int) {
       return
     default:
       time.Sleep(1 * time.Second)
+      if rand.Int() % 2 == 0 {
         fmt.Println("TESTER #", name)
+      } else {
+        os.Stderr.Write([]byte(fmt.Sprintf("TESTER ERR # %s\n", name)))
+      }
     }
   }