how to configure email alerts in grafana container
docker run \
-d \
-p 3000:3000 \
--name grafana \
-e "GF_SMTP_ENABLED=true" \
-e "GF_SMTP_HOST=smtp.example.com" \
-e "GF_SMTP_USER=myuser" \
-e "GF_SMTP_PASSWORD=mysecret" \
grafana/grafana:5.1.0