Datadog is a monitoring service that gathers monitoring data from your containers within your Azure Container Service cluster. Datadog has a Docker Integration Dashboard where you can see specific metrics within your containers. Metrics gathered from your containers are organized by CPU, Memory, Network and I/O. Datadog splits metrics into containers and images.
一、你需要准备的东西：
- 你需要有一个k8s集群，创建k8s集群的过程此处省略，方法多种，我目前使用的是Azure Container Service Engine.
- 需要创建一个Datadog账号 create an account
登陆到Datadog以后，按照此文档去安装Datadog agent。注意其中的datadog-agent.yaml 这个文件，把它copy出备用
二、安装过程：
kubectl create -f datadog-agent.yaml
sudo snap install helm
https://kubernetes-charts.storage.googleapis.com
helm init --upgrade -i registry.cn-hangzhou.aliyuncs.com/google_containers/tiller:v2.9.1 --stable-repo-url https://kubernetes.oss-cn-hangzhou.aliyuncs.com/charts
helm search
https://app.datadoghq.com/account/settings#api
helm install --name wbdatadog --set datadog.apiKey=5606443cd7359ac1ba6815**** stable/datadog
helm list
三、我们的基本结果：
成功后，登陆Datadog，能看到我们的k8s node list：
