http urls monitor.

haiswork f08364b404 log sending email error		5 gadus atpakaļ
cmd	monitor urls status	5 gadus atpakaļ
config	monitor urls status	5 gadus atpakaļ
docs	clean useless code	5 gadus atpakaļ
internal	init	5 gadus atpakaļ
migrations	init	5 gadus atpakaļ
service	log sending email error	5 gadus atpakaļ
vendor	init	5 gadus atpakaļ
.env.example	add port env	5 gadus atpakaļ
.gitignore	clean useless code	5 gadus atpakaļ
Makefile	init	5 gadus atpakaļ
README.md	update readme	5 gadus atpakaļ
go.mod	clean useless code	5 gadus atpakaļ
go.sum	init	5 gadus atpakaļ
main.go	monitor urls status	5 gadus atpakaļ

monitor status

http 状态监控

每隔 10s 轮询检查一次所有的 监控 urls，当 httpCode!=200 或 超时 时，发送报警邮件，当 url 状态恢复时，发送恢复邮件