有时候,我们为了安全,禁用root账号登录,需要root的话,在普通账号登录后再sudo;也有时候,我们期望v …
作者存档:phpor
windows virtio
kvm上安装windows虚拟机时,如果起初配置的磁盘就是virtio驱动的,则安装时会发现不到 …
kvm 之mem balloon
对于kvm虚拟机,由于宿主机和guest之间的独立性很大,当guest把很多内存用于系统cache的话,宿主机 …
docker 之 exec失败的问题
环境:
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# docker info Containers: 56 Running: 33 Paused: 0 Stopped: 23 Images: 31 Server Version: 1.12.5 Storage Driver: devicemapper Pool Name: data-docker_thinpool Pool Blocksize: 524.3 kB Base Device Size: 32.21 GB Backing Filesystem: xfs Data file: Metadata file: Data Space Used: 516.2 GB Data Space Total: 644.2 GB Data Space Available: 128.1 GB Metadata Space Used: 45.47 MB Metadata Space Total: 16.98 GB Metadata Space Available: 16.93 GB Thin Pool Minimum Free Space: 64.42 GB Udev Sync Supported: true Deferred Removal Enabled: true Deferred Deletion Enabled: false Deferred Deleted Device Count: 0 Library Version: 1.02.135-RHEL7 (2016-11-16) Logging Driver: journald Cgroup Driver: cgroupfs Plugins: Volume: local Network: host bridge null overlay Swarm: inactive Runtimes: runc docker-runc Default Runtime: runc Security Options: seccomp Kernel Version: 3.10.0-514.6.1.el7.x86_64 Operating System: CentOS Linux 7 (Core) OSType: linux Architecture: x86_64 Number of Docker Hooks: 2 CPUs: 40 Total Memory: 94.14 GiB Name: VM-2-10-12 ID: NYBE:NZML:4KQQ:PF2J:RXCB:IPPI:Y3BI:CY7E:RVAC:WVWV:VDM2:3EEK Docker Root Dir: /data1/docker Debug Mode (client): false Debug Mode (server): false Registry: https://index.docker.io/v1/ Insecure Registries: docker-registry.i.bbtfax.com:5000 127.0.0.0/8 Registries: docker.io (secure) |
现象: [crayon …
windows 内存计算
不严格地讲,内存各部分关系大致如下: 可用(60287) + 已用(37G) = 总数(96G) 已缓存(4 …
libudev on centos7
只需要安装 systemd-devel 就行了
vnc in openstack
在openstack管理的虚拟机中启动vnc时,:1 是启动不了的,似乎是被kvm已某种方式给占用了,而这种占 …
RUNNING CONTAINERS WITH RUNC
http://www.centosabc.com/archives/1573
cloud-init 工作原理 – 每天5分钟玩转 OpenStack(171) – CloudMan6的博客 – CSDN博客
http://m.blog.csdn.net/CloudMan6/article/details/689521 …
继续阅读“cloud-init 工作原理 – 每天5分钟玩转 OpenStack(171) – CloudMan6的博客 – CSDN博客”
Management Tools – KVM
http://www.linux-kvm.org/page/Management_Tools