prometheus and grafana dashboards implemented

Cargo.lock

@@ -2048,6 +2048,7 @@ dependencies = [
  "indexmap",
  "itertools",
  "jsonwebtoken",
+ "lazy_static",
  "log",
  "manifest-dir-macros",
  "maplit",
@@ -2061,6 +2062,7 @@ dependencies = [
  "parking_lot",
  "pin-project-lite",
  "platform-dirs",
+ "prometheus",
  "rand",
  "rayon",
  "regex",
@@ -2667,6 +2669,36 @@ dependencies = [
  "unicode-ident",
 ]
 
+[[package]]
+name = "procfs"
+version = "0.12.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "0941606b9934e2d98a3677759a971756eb821f75764d0e0d26946d08e74d9104"
+dependencies = [
+ "bitflags",
+ "byteorder",
+ "hex",
+ "lazy_static",
+ "libc",
+]
+
+[[package]]
+name = "prometheus"
+version = "0.13.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "cface98dfa6d645ea4c789839f176e4b072265d085bfcc48eaa8d137f58d3c39"
+dependencies = [
+ "cfg-if 1.0.0",
+ "fnv",
+ "lazy_static",
+ "libc",
+ "memchr",
+ "parking_lot",
+ "procfs",
+ "protobuf",
+ "thiserror",
+]
+
 [[package]]
 name = "proptest"
 version = "1.0.0"
@@ -2698,6 +2730,12 @@ dependencies = [
  "syn 0.15.44",
 ]
 
+[[package]]
+name = "protobuf"
+version = "2.27.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "cf7e6d18738ecd0902d30d1ad232c9125985a3422929b16c65517b38adc14f96"
+
 [[package]]
 name = "quick-error"
 version = "1.2.3"