Add pre-commit and fix issues (#354)

.github/ISSUE_TEMPLATE/bug_report.md

@@ -24,4 +24,3 @@ A clear and concise description of what you expected to happen.
 
 **Additional context**
 Add any other context about the problem here. Any log files you want to share.
-

.github/ISSUE_TEMPLATE/feature_request.md

@@ -15,4 +15,3 @@ A clear and concise description of any alternative solutions or features you've
 
 **Additional context**
 Add any other context about the feature request here.
-

.pre-commit-config.yaml

@@ -0,0 +1,42 @@
+# See https://pre-commit.com for more information
+# See https://pre-commit.com/hooks.html for more hooks
+repos:
+- repo: https://github.com/pre-commit/pre-commit-hooks
+  rev: v4.4.0
+  hooks:
+  - id: trailing-whitespace
+  - id: end-of-file-fixer
+  - id: check-yaml
+    args: [--allow-multiple-documents]
+  - id: check-ast
+  - id: check-added-large-files
+  - id: check-merge-conflict
+  - id: check-shebang-scripts-are-executable
+  - id: check-executables-have-shebangs
+  - id: check-symlinks
+  - id: check-case-conflict
+  - id: check-vcs-permalinks
+  - id: check-json
+  - id: pretty-format-json
+    args: [--autofix, --no-ensure-ascii]
+  - id: mixed-line-ending
+    args: [--fix=lf]
+  - id: no-commit-to-branch
+  - id: requirements-txt-fixer
+  - id: fix-byte-order-marker
+- repo: local
+  hooks:
+  - id: golang-diff
+    name: create-go-diff
+    entry: bash -c 'git diff -p origin/main > /tmp/diff.patch'
+    language: system
+    types: [go]
+    pass_filenames: false
+- repo: https://github.com/golangci/golangci-lint
+  rev: v1.50.1
+  hooks:
+  - id: golangci-lint
+    args: [--new-from-patch=/tmp/diff.patch]
+
+ci:
+  skip: [golang-diff, golangci-lint]

grafana/README.md

@@ -32,4 +32,3 @@ The dashboard comes with 2 rows with the following graphs for NGINX metrics:
   * Processed connections (`nginx_connections_accepted` and `nginx_connections_handled` metrics). This graph shows an [irate](https://prometheus.io/docs/prometheus/latest/querying/functions/#irate) in a range of 5 minutes. Useful for seeing the variation of the processed connections in time.
   * Active connections (`nginx_connections_active`, `nginx_connections_reading`, `nginx_connections_waiting` and `nginx_connections_writing`). Useful for checking what is happening right now.
   * Total Requests with an irate (5 minutes range too) of the total number of client requests (`nginx_http_requests_total`) over time.
-  

grafana/dashboard.json

@@ -1,37 +1,37 @@
 {
   "__inputs": [
     {
-            "name": "DS_PROMETHEUS",
-            "label": "Prometheus",
       "description": "",
-            "type": "datasource",
+      "label": "Prometheus",
+      "name": "DS_PROMETHEUS",
       "pluginId": "prometheus",
-            "pluginName": "Prometheus"
+      "pluginName": "Prometheus",
+      "type": "datasource"
     }
   ],
   "__requires": [
     {
-            "type": "grafana",
       "id": "grafana",
       "name": "Grafana",
+      "type": "grafana",
       "version": "5.0.0"
     },
     {
-            "type": "panel",
       "id": "graph",
       "name": "Graph",
+      "type": "panel",
       "version": ""
     },
     {
-            "type": "datasource",
       "id": "prometheus",
       "name": "Prometheus",
+      "type": "datasource",
       "version": "1.0.0"
     },
     {
-            "type": "panel",
       "id": "singlestat",
       "name": "Singlestat",
+      "type": "panel",
       "version": ""
     }
   ],
@@ -57,8 +57,8 @@
   "links": [],
   "panels": [
     {
-            "datasource": "${DS_PROMETHEUS}",
       "collapsed": false,
+      "datasource": "${DS_PROMETHEUS}",
       "gridPos": {
         "h": 1,
         "w": 24,
@@ -71,7 +71,6 @@
       "type": "row"
     },
     {
-            "datasource": "${DS_PROMETHEUS}",
       "cacheTimeout": null,
       "colorBackground": true,
       "colorPostfix": false,
@@ -82,6 +81,7 @@
         "#FF9830",
         "#299c46"
       ],
+      "datasource": "${DS_PROMETHEUS}",
       "decimals": null,
       "description": "",
       "format": "none",
@@ -166,8 +166,8 @@
       "valueName": "current"
     },
     {
-            "datasource": "${DS_PROMETHEUS}",
       "collapsed": false,
+      "datasource": "${DS_PROMETHEUS}",
       "gridPos": {
         "h": 1,
         "w": 24,
@@ -180,11 +180,11 @@
       "type": "row"
     },
     {
-            "datasource": "${DS_PROMETHEUS}",
       "aliasColors": {},
       "bars": false,
       "dashLength": 10,
       "dashes": false,
+      "datasource": "${DS_PROMETHEUS}",
       "decimals": null,
       "description": "",
       "fill": 1,
@@ -281,11 +281,11 @@
       }
     },
     {
-            "datasource": "${DS_PROMETHEUS}",
       "aliasColors": {},
       "bars": false,
       "dashLength": 10,
       "dashes": false,
+      "datasource": "${DS_PROMETHEUS}",
       "decimals": 0,
       "fill": 1,
       "gridPos": {
@@ -392,11 +392,11 @@
       }
     },
     {
-            "datasource": "${DS_PROMETHEUS}",
       "aliasColors": {},
       "bars": false,
       "dashLength": 10,
       "dashes": false,
+      "datasource": "${DS_PROMETHEUS}",
       "fill": 1,
       "gridPos": {
         "h": 8,