ChaosBlade是一款常用的故障模拟工具，支持内存，CPU，硬盘，网络，容器，进程等故障模拟，本文重点介绍软件的基础使用。
软件安装部署
步骤1：获取软件
https://github.com/chaosblade-io/chaosblade/releases
步骤2：将chaosblade软件上传到对应的安装目录下,执行tar命令解压chaosblade软件
[root~]tar -xzvf chaosblade-1.3.0-linux-amd64.tar.gz
[root~]cd chaosblade-1.3.0/
ChaosBlade软件使用
- 模拟CPU：
（1）让CPU负载到90%：
命令格式：./blade create cpu load --cpu-percent XX
示例：
[chaosblade-1.3.0]$ sudo ./blade create cpu load --cpu-percent 90
{"code":200,"success":true,"result":"3286ba7ef4cf6c89"}
（2）让CPU满负载
[chaosblade-1.3.0]$ sudo ./blade create cpu fullload
{"code":200,"success":true,"result":"bfccb763c8185eec"}
- 模拟内存使用：
（1）模拟内存占用80%
命令格式：./blade c mem load --mode ram --mem-percent XX
示例：
./blade c mem load --mode ram --mem-percent 80
(2)内存占用速度为100M/s逐步占用，最终预留500M内存
示例：
./blade c mem load --mode ram --reserve 500 --rate 100
3.模拟网络故障
（1）注入网络时延，单位为ms
./blade create network delay --interface eth2 --time 300
（2）注入网络丢包80%
./blade create network loss --percent 80 --interface eth2
4.模拟磁盘异常
（1）模拟目录使用容量80%
./blade create disk fill --path /mnt/file --percent 80 --retain-handle
5. 清除故障：
步骤1：找到要清除的故障UID，可以通过log日志中查询到：
[~~~chaosblade-1.3.0]$ cat logs/chaosblade.log
time="2023-06-30 16:54:46.347682944 CST" level=info msg="mode: create, target: mem, action: load, flags [mode=ram mem-percent=90 uid=61a9c02cc7bf9b11]"
time="2023-06-30 16:56:19.77386401 CST" level=info msg="destroy by 61a9c02cc7bf9b11 uid, force-remove: false, target: "
time="2023-06-30 16:56:19.848990862 CST" level=info msg="mode: destroy, target: mem, action: load, flags [mode=ram mem-percent=90 uid=61a9c02cc7bf9b11]"
time="2023-06-30 16:56:45.221775502 CST" level=info msg="mode: create, target: mem, action: load, flags [mode=ram mem-percent=90 uid=083b0c612c8b961f]"
time="2023-06-30 16:57:50.983287204 CST" level=info msg="mode: create, target: cpu, action: fullload, flags [cpu-percent=90 uid=bfccb763c8185eec]"
time="2023-06-30 17:00:40.364139358 CST" level=info msg="mode: create, target: mem, action: load, flags [mode=ram mem-percent=90 uid=6d8351e404c1043c]"
步骤2：执行命令：./blade destroy uid
示例：[chaosblade-1.3.0]$ sudo ./blade destroy 6d8351e404c1043c
{"code":200,"success":true,"result":{"target":"mem","action":"load","flags":{"mem-percent":"90","mode":"ram"}}}
