修正kube-prometheus中grafana组件自带dashboard的默认时区

• kube-prometheus项目中，默认dashboard时区是UTC，比中国时间慢了8小时，很不便于日常监控查看，如下图

• 搜索timezone关键字眼

grep -i timezone grafana-dashboardDefinitions.yaml
          "timezone": "UTC",
          "timezone": "UTC",
          "timezone": "UTC",
          "timezone": "UTC",
          "timezone": "UTC",
          "timezone": "UTC",
          "timezone": "UTC",
          "timezone": "UTC",
          "timezone": "UTC",
          "timezone": "UTC",
          "timezone": "UTC",
          "timezone": "UTC",
          "timezone": "UTC",
          "timezone": "UTC",
          "timezone": "UTC",
          "timezone": "UTC",
          "timezone": "UTC",
          "timezone": "browser",
          "timezone": "utc",
          "timezone": "UTC",
          "timezone": "UTC",
          "timezone": "UTC",
          "timezone": "UTC",

• sed命令直接修改，调整时间utc为utc+8

sed -i 's/UTC/UTC+8/g'  grafana-dashboardDefinitions.yaml
sed -i 's/utc/utc+8/g'  grafana-dashboardDefinitions.yaml

grep -i timezone grafana-dashboardDefinitions.yaml
          "timezone": "utc+8",
          "timezone": "UTC+8",
          "timezone": "UTC+8",
          "timezone": "UTC+8",
          "timezone": "UTC+8",
          "timezone": "UTC+8",
          "timezone": "UTC+8",
          "timezone": "UTC+8",
          "timezone": "UTC+8",
          "timezone": "UTC+8",
          "timezone": "UTC+8",
          "timezone": "UTC+8",
          "timezone": "UTC+8",
          "timezone": "utc+8",
          "timezone": "utc+8",
          "timezone": "utc+8",
          "timezone": "UTC+8",
          "timezone": "UTC+8",
          "timezone": "browser",
          "timezone": "utc+8",
          "timezone": "UTC+8",
          "timezone": "UTC+8",
          "timezone": "UTC+8",

kubectl apply -f grafana-dashboardDefinitions.yaml    # 使修改的配置生效

• F5刷新页面，再次查看，可以看到所有相关的dashboard显示时间已自动+8，变成了北京时间，比较符合国人习惯~