使用文件手工挂载SWAP
发布时间:September 26, 2014 // 分类:Linux基础 // 1 Comment
dd if=/dev/zero of=/swap bs=1024 count=524288
mkswap /swap
swapon /swap
开机加载:
cat /etc/fstab
/swap swap swap defaults 0 0
Docker基础使用
发布时间:September 24, 2014 // 分类:Docker // No Comments
Centos下直接安装:
yum install docker-io
/etc/init.d/docker start
使用docker官方源安装:
curl -fsSL https://get.docker.com -o get-docker.sh
sh get-docker.sh
使用mirror,修改/etc/docker/daemon.json,然后重启docker。
{
"registry-mirrors": [
"https://dockerhub.azk8s.cn",
"https://hub-mirror.c.163.com"
]
}
查看mirror是否生效:
docker info
搜索镜像:
docker search ubuntu
从官网下载镜像:
docker pull ubuntu:19.10
#使用mirror下载镜像
docker pull dockerhub.azk8s.cn/library/ubuntu:19.10
也可使用Openvz模板制作镜像:
wget http://download.openvz.org/template/precreated/suse-13.1-x86_64-minimal.tar.gz
cat suse-13.1-x86_64-minimal.tar.gz|docker import - suse:13.1
列出所有镜像:
docker images
查看镜像配置信息:
docker inspect ubuntu:19.10
从指定镜像生成一个容器并执行命令,exit后容器会结束,按键CTRL+P+Q退出容器不结束。
docker run --name test -i -t --hostname "docker-19.10" --network host ubuntu:19.10 /bin/bash
#指定name,后续可使用docker start 容器名称启动
#-p <host_port:contain_port>
#-P随机端口
#-v <host_path:container_path>
复制文件到容器内:
docker cp file test:/tmp/
查看所有的容器,包含已退出的:
docker ps -a
重新启动已退出的容器:
docker start <容器ID>/<容器名称>
#启动并attach
docker start -ai <容器ID>/<容器名称>
attach运行的容器:
docker attach <容器ID>
build镜像,Dockerfile文件:
FROM ubuntu:19.10
RUN apt-get update && apt-get -y install vim
docker build -t vim . -f Dockerfile
将指定容器保存为镜像:
docker commit <容器ID> <镜像名字>
保存镜像:
docker save ubuntu:19.10 > ubuntu.tar
导入镜像:
docker load < ubuntu.tar
导出导入容器:
导入镜像:
docker export <容器ID> > export.tar
cat export.tar | docker import - export:latest
删除docker容器:
docker rm <容器ID>
#删除所有,先停止所有docker容器
docker stop `docker ps -a -q`
docker rm `docker ps -a -q`
删除镜像IMAGE:
docker rmi <镜像id>
#删除所有
docker rmi `docker images -q`
容器运行中文件操作:
docker inspect -f '{{.Id}}' <容器id或name>
ls /var/lib/docker/devicemapper/mnt/<上面命令返回的id>/rootfs/etc/
执行运行中容器命令,如进入bash:
docker exec -it <容器id或name> bash
进入运行中容器:
PID=$(docker inspect --format {{.State.Pid}} <container_name_or_ID>)
nsenter --target $PID --mount --uts --ipc --net --pid
运行中容器使用iptables端口眏射:
#获取容器IP
docker inspect <容器id或name>|grep IPAddress
#DNAT
iptables -t nat -A PREROUTING -p tcp --dport 8001 -j DNAT --to-destination 172.17.0.7:80
更详细的资料:http://blog.tankywoo.com/docker/2014/05/08/docker-4-summary.html
自建私有仓库:http://www.vpsee.com/2013/11/build-your-own-docker-private-regsitry-service/
https://github.com/docker-practice/docker-registry-cn-mirror-test
https://yeasy.gitbooks.io/docker_practice/
Centos6安装HHVM
发布时间:September 24, 2014 // 分类:HHVM // No Comments
安装源:
rpm -ivh http://dl.fedoraproject.org/pub/epel/6/x86_64/epel-release-6-8.noarch.rpm
cd /etc/yum.repos.d
wget http://www.hop5.in/yum/el6/hop5.repo
安装HHVM:
yum install hhvm --setopt=protected_multilib=false
关闭多版本检查,libgcc i686版本冲突
--setopt=protected_multilib=false
HHVM集成的PHP扩展:
https://github.com/facebook/hhvm/wiki/Extensions
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