k8s loki 容器日志解决方案-4. alertmanager 报警及loki rules

### alertmanager 部署

下载 https://github.com/prometheus/alertmanager/releases/tag/v0.24.0

上传文件到 /data 目录

```

cd /data

tar xf alertmanager-0.24.0.linux-amd64.tar.gz

mv alertmanager-0.24.0.linux-amd64 alertmanager

cat <<EOF> /etc/supervisord.d/alertmanager.ini 

[program:alertmanager] 

command=/data/alertmanager/alertmanager

autorestart=true

autostart=true

stderr_logfile=/tmp/alertmanager_err.log

stdout_logfile=/tmp/alertmanager_out.log

user=root

stopsignal=INT

startsecs=10

startretries=3

directory=/data/alertmanager

EOF

```