datadog monitoring coreos etcd on AWS

datadog.service

[Unit]
Requires=docker.service coreos-metadata.service
After=docker.service coreos-metadata.service
[Service]
Restart=always
EnvironmentFile=/etc/os-release
EnvironmentFile=/run/metadata/coreos
ExecStartPre=-/usr/bin/docker stop datadog
ExecStartPre=-/usr/bin/docker rm -f datadog
ExecStartPre=/usr/bin/docker pull datadog/agent:latest
TimeoutStartSec=0
ExecStartPre=-/usr/bin/docker kill datadog
ExecStartPre=-/usr/bin/docker rm datadog
ExecStart=/bin/bash -c " \
  docker run --name datadog \
    --network host \
    -v /var/run/docker.sock:/var/run/docker.sock \
    -v /proc/:/host/proc:ro \
    -v /sys/fs/cgroup/:/host/sys/fs/cgroup:ro \
    -v /opt/datadog/run:/opt/datadog/run \
    -v /var/log:/host/log \
    -v /etc/datadog/conf.d:/conf.d:ro \
    -e DD_API_KEY=\"REDACTED\" \
    -e DD_LOGS_ENABLED=\"false\" \
    -e DD_LOGS_CONFIG_CONTAINER_COLLECT_ALL=\"true\" \
    -e DD_COLLECT_EC2_TAGS=\"true\" \
    -e DD_TAGS=\"availability-zone:$COREOS_EC2_AVAILABILITY_ZONE,\
region:$COREOS_EC2_REGION,\
os-name:$ID,\
os-version:$VERSION,\
\" \
    datadog/agent:latest"
ExecStop=/usr/bin/docker stop datadog
[Install]
WantedBy=multi-user.target