docker cloudstack issue

在docker中安装cloudstack-management时，执行cloudstack-setup-management中间会执行下面一个脚本

/bin/bash /usr/share/cloudstack-common/scripts/vm/systemvm/injectkeys.sh \

/var/cloudstack/management/.ssh/id_rsa.pub \

/var/cloudstack/management/.ssh/id_rsa \

/usr/share/cloudstack-common/vms/systemvm.iso

在docker中提示

Injected public and private keys into systemvm iso with result : mount: Could not find any loop device. Maybe this kernel does not know

      about the loop device? (If so, recompile or `modprobe loop'.)

经查，是docker容器中没有loop device（使用losetup -f）

使用下面命令启动容器可以解决

docker run -d -it --privileged=true --name cloudstack-management-4.5.2-test \

-p 8081:8080 -p 8097:8096 -p 8788:8787 -p 8251:8250 -p 9091:9090 centos6.5/cloudstack-management-4.4.1 /bin/bash

注：--privileged=true是为了在容器中能访问loop设备，还有其他的方法，

The quick answer

docker run --privileged=true ...

An alternative

sudo losetup /dev/loop0 test.img

mount /dev/loop0 /mnt

docker run -v /mnt:/mnt ...

This almost works

docker run --device=/dev/loop-control:/dev/loop-control --device=/dev/loop0:/dev/loop0 --cap-add SYS_ADMIN ...

但未测试

新建loop设备

mknod -m 0660 /dev/loopX b 7 X
注意loopX对应的X

例如新建一个loop3 

mknod -m 0660 /dev/loop3 b 7 3

service mysqld start

cloudstack-setup-databases cloud:password@localhost --deploy-as=root(若容器IP改变,重新生成db.propery)

cloudstack-setup-management

(该执行脚本的调用脚本修改了两处地方，

一是iptable设置，修改不进行iptables修改；

二是对/etc/security/limits.conf 修改-1为4096

cloud hard nofile 4096

cloud soft nofile 4096)