docker基础之八monitor-2-sysdig

sysdig是一个轻量级的系统监控工具，同时还原生支持容器。

linux上的常用监控工具如：

strace,tcpdump,htop,iftop,lsof

而sysdig则是将这些工具的功能集成到一个工具中，并提供一个友好统一的操作界面

[root@nas5 ~]# docker container run -it --rm --name=sysdig --privileged=true \
           --volume=/var/run/docker.sock:/host/var/run/docker.sock \
           --volume=/dev:/host/dev \
           --volume=/proc:/host/proc:ro \
           --volume=/boot:/host/boot:ro \
           --volume=/lib/modules:/host/lib/modules:ro \
           --volume=/usr:/host/usr:ro \
           sysdig/sysdig
		   
* Setting up /usr/src links from host
* Unloading sysdig-probe, if present
* Running dkms install for sysdig
Error! echo
Your kernel headers for kernel 3.10.0-957.el7.x86_64 cannot be found at
/lib/modules/3.10.0-957.el7.x86_64/build or /lib/modules/3.10.0-957.el7.x86_64/source.
* Running dkms build failed, couldn't find /var/lib/dkms/sysdig/0.26.4/build/make.log
* Trying to load a system sysdig-probe, if present
* Trying to find precompiled sysdig-probe for 3.10.0-957.el7.x86_64
Found kernel config at /host/boot/config-3.10.0-957.el7.x86_64
* Trying to download precompiled module from https://s3.amazonaws.com/download.draios.com/stable/sysdig-probe-binaries/sysdig-probe-0.26.4-x86_64-3.10.0-957.el7.x86_64-ab9d808cad44a11f32105a24b5acda29.ko
Download succeeded, loading module
root@08889d187de9:/#

sysdig容器以privileged方式运行，而且会读取/dev,/proc,等数据，为了获取足够的系统信息

在容器内执行csysdig，将以交互方式启动sysdig