使用Grafana展示Docker容器的监控图表并设置邮件报警规则（图解）

[root@docker ~]# docker run -d -p 80:3000 -e INFLUXDB_HOST=localhost -e INFLUXDB_PORT=8086 -e INFLUXDB_NAME=cadvisor -e INFLUXDB_USER=root -e INFLUXDB_PASS=root --link influxsrv:influxsrv --name grafana-alerting grafana/grafana
f9495c492b9e4c735f0002d47fc4af668691f83e60b70d7b09defbfa2c806f6d

[root@docker ~]# docker cp grafana-alerting:/run.sh /tmp/run.sh

[root@docker ~]# docker cp /tmp/run.sh grafana-alerting:/run.sh

#!/bin/bash -e
: "${GF_PATHS_DATA:=/var/lib/grafana}"
: "${GF_PATHS_LOGS:=/var/log/grafana}"
: "${GF_PATHS_PLUGINS:=/var/lib/grafana/plugins}"
: "${GF_SMTP_ENABLED:=true}"
: "${GF_SMTP_HOST:=smtp.163.com:25}"
: "${GF_SMTP_USER:=fkcloudstack@163.com}"
: "${GF_SMTP_PASSWORD:=fuck123}"
: "${GF_SMTP_FROM_ADDRESS:=fkcloudstack@163.com}"
chown -R grafana:grafana "$GF_PATHS_DATA" "$GF_PATHS_LOGS"
chown -R grafana:grafana /etc/grafana
if [ ! -z ${GF_AWS_PROFILES+x} ]; then
 mkdir -p ~grafana/.aws/
 touch ~grafana/.aws/credentials
 for profile in ${GF_AWS_PROFILES}; do
  access_key_varname="GF_AWS_${profile}_ACCESS_KEY_ID"
  secret_key_varname="GF_AWS_${profile}_SECRET_ACCESS_KEY"
  region_varname="GF_AWS_${profile}_REGION"
  if [ ! -z "${!access_key_varname}" -a ! -z "${!secret_key_varname}" ]; then
   echo "[${profile}]" >> ~grafana/.aws/credentials
   echo "aws_access_key_id = ${!access_key_varname}" >> ~grafana/.aws/credentials
   echo "aws_secret_access_key = ${!secret_key_varname}" >> ~grafana/.aws/credentials
   if [ ! -z "${!region_varname}" ]; then
    echo "region = ${!region_varname}" >> ~grafana/.aws/credentials
   fi
  fi
 done
 chown grafana:grafana -R ~grafana/.aws
 chmod 600 ~grafana/.aws/credentials
fi
if [ ! -z "${GF_INSTALL_PLUGINS}" ]; then
 OLDIFS=$IFS
 IFS=','
 for plugin in ${GF_INSTALL_PLUGINS}; do
 grafana-cli --pluginsDir "${GF_PATHS_PLUGINS}" plugins install ${plugin}
 done
 IFS=$OLDIFS
fi
exec gosu grafana /usr/sbin/grafana-server \
 --homepath=/usr/share/grafana    \
 --cOnfig=/etc/grafana/grafana.ini   \
 cfg:default.paths.data="$GF_PATHS_DATA" \
 cfg:default.paths.logs="$GF_PATHS_LOGS" \
 cfg:default.paths.plugins="$GF_PATHS_PLUGINS" \
 cfg:default.smtp.enabled="$GF_SMTP_ENABLED" \
 cfg:default.smtp.host="$GF_SMTP_HOST" \
 cfg:default.smtp.user="$GF_SMTP_USER" \
 cfg:default.smtp.password="$GF_SMTP_PASSWORD" \
cfg:default.smtp.from_address="$GF_SMTP_FROM_ADDRESS"

: "${GF_SMTP_ENABLED:=true}"　　　　#启用smtp配置
: "${GF_SMTP_HOST:=smtp.163.com:25}"　　　　#smtp服务器的地址：端口
: "${GF_SMTP_USER:=fkcloudstack@163.com}"　　　　#认证的邮箱账户
: "${GF_SMTP_PASSWORD:=fuck123}"　　　　#邮箱密码（注：163使用的客户端授权码作为用户密码）
: "${GF_SMTP_FROM_ADDRESS:=fkcloudstack@163.com}"　　　　#邮箱发件人地址，注意！此处一定要和上面的邮箱认证账户保持一致。不然会报553错误。！！！

cfg:default.smtp.enabled="$GF_SMTP_ENABLED" \
 cfg:default.smtp.host="$GF_SMTP_HOST" \
 cfg:default.smtp.user="$GF_SMTP_USER" \
 cfg:default.smtp.password="$GF_SMTP_PASSWORD" \
cfg:default.smtp.from_address="$GF_SMTP_FROM_ADDRESS"

[root@docker ~]# docker stop grafana-alerting
grafana-alerting
[root@docker ~]# docker start grafana-alerting
grafana-alerting

[root@docker ~]# docker exec -it cadvisor /bin/ash

/ # swapoff -a
/ # dd if=/dev/zero of=/dev/shm/test bs=1k count=80000k
dd: writing '/dev/shm/test': No space left on device
65537+0 records in
65536+0 records out

/ # rm -f /dev/shm/test