diff --git a/Dockerfile b/Dockerfile
index 9aad84a..48e6438 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,5 +1,5 @@
 ## Build
-FROM golang:1.21.4-bookworm AS build
+FROM golang:1.22-bookworm AS build
 
 
 COPY . /usr/src/troll/
diff --git a/README.md b/README.md
index 04097ce..7862713 100644
--- a/README.md
+++ b/README.md
@@ -45,6 +45,7 @@ Troll is a very simple webserver returning defined response with configurable de
  * 404 page dumping request to log
  * Generate 503 randomly (simulate errors)
  * Fill RAM with each request (simulate mem leaks)
+ * Ready delay for testing canary releases and readyness check
 
 ## Build
 
@@ -58,17 +59,19 @@ env GOOS=target-OS GOARCH=target-architecture go build .
 troll -help
 
   -fail int
-        Returns 503. Set 1 - 10, where 10 = 100% error rate.
+    	Returns 503. Set 1 - 10, where 10 = 100% error rate.
   -fill-ram int
-        Fill ram with each request. Set number in bytes.
+    	Fill ram with each request. Set number in bytes.
   -name string
-        Define custom application name (default "troll")
+    	Define custom application name (default "troll")
+  -ready-delay int
+    	Simulate long application init (seconds).
   -root string
-        Define document root for serving files (default "./public")
+    	Define document root for serving files (default "./public")
   -v2-path string
-        Define path to v2 api endpoint configuration yaml (default "./v2_api.yaml")
+    	Define path to v2 api endpoint configuration yaml (default "./v2_api.yaml")
   -wait int
-        Minimal wait time before each request
+    	Minimal wait time before each request
 ```
 
 ## Config
diff --git a/go.mod b/go.mod
index 2954b19..e31f93d 100644
--- a/go.mod
+++ b/go.mod
@@ -1,6 +1,6 @@
 module gitlab.com/theztd/troll
 
-go 1.17
+go 1.22
 
 require (
 	github.com/gin-contrib/requestid v0.0.5
diff --git a/go.sum b/go.sum
index eba77d6..10ab883 100644
--- a/go.sum
+++ b/go.sum
@@ -243,7 +243,6 @@ github.com/stretchr/testify v1.7.1/go.mod h1:6Fq8oRcR53rry900zMqJjRRixrwX3KX962/
 github.com/stretchr/testify v1.7.2 h1:4jaiDzPyXQvSd7D0EjG45355tLlV3VOECpq10pLC+8s=
 github.com/stretchr/testify v1.7.2/go.mod h1:R6va5+xMeoiuVRoj+gSkQ7d3FALtqAAGI1FQKckRals=
 github.com/ugorji/go v1.1.7/go.mod h1:kZn38zHttfInRq0xu/PH0az30d+z6vm202qpg1oXVMw=
-github.com/ugorji/go v1.2.7 h1:qYhyWUUd6WbiM+C6JZAUkIJt/1WrjzNHY9+KCIjVqTo=
 github.com/ugorji/go v1.2.7/go.mod h1:nF9osbDWLy6bDVv/Rtoh6QgnvNDpmCalQV5urGCCS6M=
 github.com/ugorji/go/codec v1.1.7/go.mod h1:Ax+UKWsSmolVDwsd+7N3ZtXu+yMGCf907BLYF3GoBXY=
 github.com/ugorji/go/codec v1.2.7 h1:YPXUKf7fYbp/y8xloBqZOw2qaVggbfwMlI8WM3wZUJ0=
diff --git a/main.go b/main.go
index 6b88922..dceac57 100644
--- a/main.go
+++ b/main.go
@@ -41,12 +41,24 @@ func main() {
 	flag.StringVar(&V2_PATH, "v2-path", "./v2_api.yaml", "Define path to v2 api endpoint configuration yaml")
 	flag.IntVar(&FAIL_FREQ, "fail", 0, "Returns 503. Set 1 - 10, where 10 = 100% error rate.")
 	flag.IntVar(&FILL_RAM, "fill-ram", 0, "Fill ram with each request. Set number in bytes.")
+	flag.IntVar(&READY_DELAY, "ready-delay", 0, "Simulate long application init (seconds).")
+
 	flag.Parse()
 
 	// it is better to be configurable via env
 	ADDRESS = getEnv("ADDRESS", ":8080")
 	LOG_LEVEL = getEnv("LOG_LEVEL", "info")
 
+	if READY_DELAY > 0 {
+		fmt.Printf("Application init")
+		for i := 0; i < READY_DELAY; i++ {
+			time.Sleep(time.Duration(1 * time.Second))
+			fmt.Printf(".")
+		}
+		fmt.Printf(" DONE\n\n")
+
+	}
+
 	// It is enought
 	getRoutes()
 
diff --git a/variables.go b/variables.go
index 0701ac0..f17b916 100644
--- a/variables.go
+++ b/variables.go
@@ -9,7 +9,7 @@ import (
 var router = gin.New()
 var m = ginmetrics.GetMonitor()
 
-var VERSION string = "1.1.2"
+var VERSION string = "1.2.0"
 var LOG_LEVEL string
 var NAME string
 var DOC_ROOT string
@@ -18,3 +18,4 @@ var ADDRESS string
 var V2_PATH string
 var FAIL_FREQ int = 0
 var FILL_RAM int = 0
+var READY_DELAY int = 0