Set min and max values for graphs

Author: DifferentialOrange

tarantool/cluster.libsonnet

@@ -305,6 +305,7 @@ local prometheus = grafana.prometheus;
     datasource=datasource,
 
     format='none',
+    min=0,
     fill=0,
     decimals=0,
     sort='decreasing',

tarantool/cpu.libsonnet

@@ -20,6 +20,7 @@ local prometheus = grafana.prometheus;
     datasource=datasource,
 
     format='s',
+    min=0,
     labelY1='time per minute',
     fill=0,
     decimals=3,

tarantool/http.libsonnet

@@ -21,6 +21,7 @@ local prometheus = grafana.prometheus;
     datasource=datasource,
 
     format='none',
+    min=0,
     labelY1='requests per second',
     fill=0,
     decimals=2,
@@ -148,6 +149,7 @@ local prometheus = grafana.prometheus;
     datasource=datasource,
 
     format='s',
+    min=0,
     labelY1=label,
     fill=0,
     decimals=3,

tarantool/net.libsonnet

@@ -21,6 +21,7 @@ local prometheus = grafana.prometheus;
     datasource=datasource,
 
     format='Bps',
+    min=0,
     labelY1=labelY1,
     fill=0,
     decimals=2,
@@ -120,6 +121,7 @@ local prometheus = grafana.prometheus;
     datasource=datasource,
 
     format='none',
+    min=0,
     labelY1='requests per second',
     fill=0,
     decimals=2,
@@ -164,6 +166,7 @@ local prometheus = grafana.prometheus;
     datasource=datasource,
 
     format='none',
+    min=0,
     labelY1='pending',
     fill=0,
     decimals=2,
@@ -208,6 +211,7 @@ local prometheus = grafana.prometheus;
     datasource=datasource,
 
     format='none',
+    min=0,
     labelY1='current',
     fill=0,
     decimals=0,

tarantool/operations.libsonnet

@@ -21,6 +21,7 @@ local prometheus = grafana.prometheus;
     datasource=datasource,
 
     format='none',
+    min=0,
     labelY1=labelY1,
     fill=0,
     decimals=2,

tarantool/slab.libsonnet

@@ -17,21 +17,24 @@ local prometheus = grafana.prometheus;
   ),
 
   local used_panel(
-    title,
-    description,
-    datasource,
-    policy,
-    measurement,
-    job,
-    metric_name,
-    format,
-    labelY1
+    title=null,
+    description=null,
+    datasource=null,
+    policy=null,
+    measurement=null,
+    job=null,
+    metric_name=null,
+    format=null,
+    labelY1=null,
+    max=null
   ) = graph.new(
     title=title,
     description=description,
     datasource=datasource,
 
     format=format,
+    min=0,
+    max=max,
     labelY1=labelY1,
     fill=0,
     decimals=2,
@@ -73,7 +76,8 @@ local prometheus = grafana.prometheus;
     job,
     metric_name,
     format='percent',
-    labelY1='used ratio'
+    labelY1='used ratio',
+    max=100
   ),
 
   quota_used_ratio(