process load balancing: broken but in progress

internal/pkg/process/process.go

@@ -0,0 +1,40 @@
+package process
+
+import (
+	"time"
+
+	"github.com/thecodingmachine/gotenberg/internal/pkg/xlog"
+)
+
+type Process interface {
+	ID() string
+	Host() string
+	Port() int
+	binary() string
+	args() []string
+	warmupTime() time.Duration
+	viabilityFunc() func(logger xlog.Logger) bool
+}
+
+type ListItem struct {
+	Name    string  `json:"name"`
+	Status  string  `json:"status"`
+	Restart int64   `json:"restart"`
+	Memory  int64   `json:"memory"`
+	CPU     float64 `json:"cpu"`
+}
+
+type List []ListItem
+
+type Key string
+
+type Manager interface {
+	Start() error
+	List() List
+	All() []Process
+	Processes(key Key) []Process
+	Restart(proc Process) error
+	Stop(proc Process) error
+	IsViable(proc Process) bool
+	Memory(proc Process) (int64, error)
+}