Docker集群

发布于:2019-1-30 15:28 作者:admin 浏览:2368 分类:系统架构
[root@localhost docker]# docker swarm init
Swarm initialized: current node (vgc6172h94lo7vktpxs9hnb1y) is now a manager.

To add a worker to this swarm, run the following command:

    docker swarm join \
    --token SWMTKN-1-0dpoajwlnlig2pvbujiqzogodwilx6fezg7rgpjfsvob49vnzl-1lq8jjz0hqvcmd2ay91ornac6 \
    192.168.100.136:2377

To add a manager to this swarm, run 'docker swarm join-token manager' and follow the instructions.


[root@localhost docker]# docker node ls
ID                           HOSTNAME               STATUS  AVAILABILITY  MANAGER STATUS
vgc6172h94lo7vktpxs9hnb1y *  localhost.localdomain  Ready   Active        Leader


[root@localhost docker]# docker service create --name nginx --publish 80:80 --replicas 3 docker.io/idiswy/lnmp
td9afve2mqcs4l6t0w4dro8ve

[root@localhost docker]# docker service ls
ID            NAME   MODE        REPLICAS  IMAGE
td9afve2mqcs  nginx  replicated  3/3       docker.io/idiswy/lnmp:latest

[root@localhost docker]# docker service ps nginx
ID            NAME     IMAGE                         NODE                   DESIRED STATE  CURRENT STATE               ERROR  PORTS
tnwlid5v447j  nginx.1  docker.io/idiswy/lnmp:latest  localhost.localdomain  Running        Running about a minute ago         
f1h4cenjlj06  nginx.2  docker.io/idiswy/lnmp:latest  localhost.localdomain  Running        Running about a minute ago         
k6m7nqosffna  nginx.3  docker.io/idiswy/lnmp:latest  localhost.localdomain  Running        Running about a minute ago    

[root@localhost docker]# docker service scale nginx=6
nginx scaled to 6

[root@localhost docker]# docker service ps nginx
ID            NAME     IMAGE                         NODE                   DESIRED STATE  CURRENT STATE           ERROR  PORTS
tnwlid5v447j  nginx.1  docker.io/idiswy/lnmp:latest  localhost.localdomain  Running        Running 2 minutes ago          
f1h4cenjlj06  nginx.2  docker.io/idiswy/lnmp:latest  localhost.localdomain  Running        Running 2 minutes ago          
k6m7nqosffna  nginx.3  docker.io/idiswy/lnmp:latest  localhost.localdomain  Running        Running 2 minutes ago          
mxx8konbil7u  nginx.4  docker.io/idiswy/lnmp:latest  localhost.localdomain  Running        Running 20 seconds ago         
v6hw4wkm1mf5  nginx.5  docker.io/idiswy/lnmp:latest  localhost.localdomain  Running        Running 20 seconds ago         
7mjvtqhxdiqm  nginx.6  docker.io/idiswy/lnmp:latest  localhost.localdomain  Running        Running 20 seconds ago      


[root@localhost docker]# docker ps
CONTAINER ID        IMAGE                                                                                           COMMAND             CREATED              STATUS              PORTS               NAMES
25eb9d5a1a49        docker.io/idiswy/lnmp@sha256:ddb256e6834e5bd0dbaa0d9130ff94312ecdb1ae19669cc747e99620c4edd656   "/sbin/my_init"     About a minute ago   Up About a minute   80/tcp, 443/tcp     nginx.5.v6hw4wkm1mf5cjvf82vet2f4w
0a1654460e59        docker.io/idiswy/lnmp@sha256:ddb256e6834e5bd0dbaa0d9130ff94312ecdb1ae19669cc747e99620c4edd656   "/sbin/my_init"     About a minute ago   Up About a minute   80/tcp, 443/tcp     nginx.6.7mjvtqhxdiqm3bxwqmeepo0sh
ecba5be3df16        docker.io/idiswy/lnmp@sha256:ddb256e6834e5bd0dbaa0d9130ff94312ecdb1ae19669cc747e99620c4edd656   "/sbin/my_init"     About a minute ago   Up About a minute   80/tcp, 443/tcp     nginx.4.mxx8konbil7uq0c9kydos5hei
148735b9e91b        docker.io/idiswy/lnmp@sha256:ddb256e6834e5bd0dbaa0d9130ff94312ecdb1ae19669cc747e99620c4edd656   "/sbin/my_init"     3 minutes ago        Up 3 minutes        80/tcp, 443/tcp     nginx.2.f1h4cenjlj064nfmkyddufze0
dafd4c20c955        docker.io/idiswy/lnmp@sha256:ddb256e6834e5bd0dbaa0d9130ff94312ecdb1ae19669cc747e99620c4edd656   "/sbin/my_init"     3 minutes ago        Up 3 minutes        80/tcp, 443/tcp     nginx.3.k6m7nqosffnayodp1qjph7o02
020f1099d809        docker.io/idiswy/lnmp@sha256:ddb256e6834e5bd0dbaa0d9130ff94312ecdb1ae19669cc747e99620c4edd656   "/sbin/my_init"     3 minutes ago        Up 3 minutes        80/tcp, 443/tcp     nginx.1.tnwlid5v447jl61kh8ukg8eob


标签: Docker

0

CentOS构建Docker2

发布于:2019-1-30 9:03 作者:admin 浏览:2184 分类:系统架构
查看版本
[root@localhost ~]# docker version
Client:
 Version:         1.13.1
 API version:     1.26
 Package version: docker-1.13.1-88.git07f3374.el7.centos.x86_64
 Go version:      go1.9.4
 Git commit:      07f3374/1.13.1
 Built:           Fri Dec  7 16:13:51 2018
 OS/Arch:         linux/amd64

Server:
 Version:         1.13.1
 API version:     1.26 (minimum version 1.12)
 Package version: docker-1.13.1-88.git07f3374.el7.centos.x86_64
 Go version:      go1.9.4
 Git commit:      07f3374/1.13.1
 Built:           Fri Dec  7 16:13:51 2018
 OS/Arch:         linux/amd64
 Experimental:    false


搜索容器镜像
[root@localhost ~]# docker search centos
INDEX       NAME                                         DESCRIPTION                                     STARS     OFFICIAL   AUTOMATED
docker.io   docker.io/centos                             The official build of CentOS.                   5147      [OK]       
docker.io   docker.io/ansible/centos7-ansible            Ansible on Centos7                              119                  [OK]
docker.io   docker.io/jdeathe/centos-ssh                 CentOS-6 6.10 x86_64 / CentOS-7 7.5.1804 x...   106                  [OK]
docker.io   docker.io/consol/centos-xfce-vnc             Centos container with "headless" VNC sessi...   78                   [OK]
docker.io   docker.io/imagine10255/centos6-lnmp-php56    centos6-lnmp-php56                              50                   [OK]
docker.io   docker.io/centos/mysql-57-centos7            MySQL 5.7 SQL database server                   45                   
docker.io   docker.io/tutum/centos                       Simple CentOS docker image with SSH access      43                   
docker.io   docker.io/openshift/base-centos7             A Centos7 derived base image for Source-To...   39                   
docker.io   docker.io/gluster/gluster-centos             Official GlusterFS Image [ CentOS-7 +  Glu...   38                   [OK]
docker.io   docker.io/centos/postgresql-96-centos7       PostgreSQL is an advanced Object-Relationa...   37                   
docker.io   docker.io/centos/python-35-centos7           Platform for building and running Python 3...   33                   
docker.io   docker.io/kinogmt/centos-ssh                 CentOS with SSH                                 25                   [OK]
docker.io   docker.io/openshift/jenkins-2-centos7        A Centos7 based Jenkins v2.x image for use...   20                   
docker.io   docker.io/centos/php-56-centos7              Platform for building and running PHP 5.6 ...   19                   
docker.io   docker.io/pivotaldata/centos-gpdb-dev        CentOS image for GPDB development. Tag nam...   10                   
docker.io   docker.io/openshift/wildfly-101-centos7      A Centos7 based WildFly v10.1 image for us...   6                    
docker.io   docker.io/openshift/jenkins-1-centos7        DEPRECATED: A Centos7 based Jenkins v1.x i...   4                    
docker.io   docker.io/darksheer/centos                   Base Centos Image -- Updated hourly             3                    [OK]
docker.io   docker.io/pivotaldata/centos                 Base centos, freshened up a little with a ...   2                    
docker.io   docker.io/pivotaldata/centos-mingw           Using the mingw toolchain to cross-compile...   2                    
docker.io   docker.io/blacklabelops/centos               CentOS Base Image! Built and Updates Daily!     1                    [OK]
docker.io   docker.io/pivotaldata/centos-gcc-toolchain   CentOS with a toolchain, but unaffiliated ...   1                    
docker.io   docker.io/pivotaldata/centos7-build          CentosOS 7 image for GPDB compilation           0                    
docker.io   docker.io/pivotaldata/centos7-test           CentosOS 7 image for GPDB testing               0                    
docker.io   docker.io/smartentry/centos                  centos with smartentry                          0                    [OK]



下载容器镜像
[root@localhost ~]# docker pull docker.io/centos
Using default tag: latest
Trying to pull repository docker.io/library/centos ... 
latest: Pulling from docker.io/library/centos
5e6ec7f28fb7: Pull complete 
566e675a8212: Pull complete 
ef5a8026039b: Pull complete 
22ecb0106557: Pull complete 
91cc511c603e: Pull complete 
Digest: sha256:184e5f35598e333bfa7de10d8fb1cebb5ee4df5bc0f970bf2b1e7c7345136426
Status: Downloaded newer image for docker.io/centos:latest


查看容器镜像
[root@localhost ~]# docker images centos
REPOSITORY          TAG                 IMAGE ID            CREATED             SIZE
docker.io/centos    latest              1e1148e4cc2c        7 weeks ago         202 MB

运行容器镜像
[root@localhost ~]# docker run centos  echo "Hello Centos"
Hello Centos


命令行运行容器镜像
[root@localhost ~]# docker run -t -i centos /bin/bash
[root@4bf88ec1e25e /]# echo "Hello Centos"
Hello Centos

保存对容器的修改
[root@localhost ~]# docker ps -l
CONTAINER ID        IMAGE               COMMAND             CREATED              STATUS                     PORTS               NAMES
4bf88ec1e25e        centos              "/bin/bash"         About a minute ago   Exited (0) 5 seconds ago                       mystifying_kilby
[root@localhost ~]# docker commit -m="Hello Centos"  4bf88ec1e25e  hellocentos
sha256:05c7c5c8c6f1ef66736cd1c6256cdd94629263ff67375e78e040e34dce2fb548

检查运行中的镜像
[root@localhost ~]# docker run hellocentos echo "Hello Centos"
WARNING: IPv4 forwarding is disabled. Networking will not work.
Hello Centos
[root@localhost ~]# docker inspect hellocentos
[
    {
        "Id": "sha256:05c7c5c8c6f1ef66736cd1c6256cdd94629263ff67375e78e040e34dce2fb548",
        "RepoTags": [
            "hellocentos:latest"
        ],
        "RepoDigests": [],
        "Parent": "sha256:1e1148e4cc2c148c6890a18e3b2d2dde41a6745ceb4e5fe94a923d811bf82ddb",
        "Comment": "Hello Centos",
        "Created": "2019-01-29T02:15:06.601658579Z",
        "Container": "4bf88ec1e25ebb0b91dd80fce5e26138c8f955f4edeb6c778422af65a66c7b6d",
        "ContainerConfig": {
            "Hostname": "4bf88ec1e25e",
            "Domainname": "",
            "User": "",
            "AttachStdin": true,
            "AttachStdout": true,
            "AttachStderr": true,
            "Tty": true,
            "OpenStdin": true,
            "StdinOnce": true,
            "Env": [
                "PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin"
            ],
            "Cmd": [
                "/bin/bash"
            ],
            "Image": "centos",
            "Volumes": null,
            "WorkingDir": "",
            "Entrypoint": null,
            "OnBuild": null,
            "Labels": {
                "org.label-schema.build-date": "20181205",
                "org.label-schema.license": "GPLv2",
                "org.label-schema.name": "CentOS Base Image",
                "org.label-schema.schema-version": "1.0",
                "org.label-schema.vendor": "CentOS"
            }
        },
        "DockerVersion": "1.13.1",
        "Author": "",
        "Config": {
            "Hostname": "",
            "Domainname": "",
            "User": "",
            "AttachStdin": false,
            "AttachStdout": false,
            "AttachStderr": false,
            "Tty": false,
            "OpenStdin": false,
            "StdinOnce": false,
            "Env": [
                "PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin"
            ],
            "Cmd": [
                "/bin/bash"
            ],
            "Image": "",
            "Volumes": null,
            "WorkingDir": "",
            "Entrypoint": null,
            "OnBuild": null,
            "Labels": {
                "org.label-schema.build-date": "20181205",
                "org.label-schema.license": "GPLv2",
                "org.label-schema.name": "CentOS Base Image",
                "org.label-schema.schema-version": "1.0",
                "org.label-schema.vendor": "CentOS"
            }
        },
        "Architecture": "amd64",
        "Os": "linux",
        "Size": 201779629,
        "VirtualSize": 201779629,
        "GraphDriver": {
            "Name": "overlay2",
            "Data": {
                "LowerDir": "/var/lib/docker/overlay2/2e17ffe2a2acae3ca7b05851e5b2a8f4858bdec98b9ffeddaff1416851167d83/diff",
                "MergedDir": "/var/lib/docker/overlay2/6cbdbc6d1560ec1fe0b608e1dc80dcb4088cebbbbe77d7e269ac13732c711a00/merged",
                "UpperDir": "/var/lib/docker/overlay2/6cbdbc6d1560ec1fe0b608e1dc80dcb4088cebbbbe77d7e269ac13732c711a00/diff",
                "WorkDir": "/var/lib/docker/overlay2/6cbdbc6d1560ec1fe0b608e1dc80dcb4088cebbbbe77d7e269ac13732c711a00/work"
            }
        },
        "RootFS": {
            "Type": "layers",
            "Layers": [
                "sha256:071d8bd765171080d01682844524be57ac9883e53079b6ac66707e192ea25956",
                "sha256:e0a311bc74f5b5421dc5c135921dece63824e1cce9e5f5717d07878315d3728a"
            ]
        }
    }
]


发布自己的镜像
[root@localhost ~]# docker commit -m "my centos" 4bf88ec1e25e wangcnc2005/centos
sha256:4a3a837b38d77a5024b22cf0265f69eef7a3b3ccb32c2f2c7ca3c5d52edb2320


[root@localhost ~]# docker login
Login with your Docker ID to push and pull images from Docker Hub. If you don't have a Docker ID, head over to https://hub.docker.com to create one.
Username: wangcnc2005
Password: 
Login Succeeded


[root@localhost ~]# docker push wangcnc2005/centos:latest
The push refers to a repository [docker.io/wangcnc2005/centos]
e0a311bc74f5: Pushed 
071d8bd76517: Pushed 
latest: digest: sha256:704978e57bd5486f145467a3ab314434bc02041a0f1aae137f43a5c81aea2506 size: 736

[root@localhost ~]# docker search wangcnc2005
INDEX       NAME                           DESCRIPTION   STARS     OFFICIAL   AUTOMATED
docker.io   docker.io/wangcnc2005/centos   my centos     0           


容器的删除
[root@localhost ~]# docker commit -m="Hello Centos"  4bf88ec1e25e  hello_centos
sha256:3e99e17de7d4de201482f97635780ad7872cea5a8ce5a1a70312ce4cd330cf40
[root@localhost ~]# docker images|grep centos
hello_centos            latest              3e99e17de7d4        5 seconds ago       202 MB
hellocentos             latest              05c7c5c8c6f1        21 hours ago        202 MB
docker.io/centos        latest              1e1148e4cc2c        7 weeks ago         202 MB

[root@localhost ~]# docker rmi hello_centos
Untagged: hello_centos:latest
Deleted: sha256:3e99e17de7d4de201482f97635780ad7872cea5a8ce5a1a70312ce4cd330cf40

[root@localhost ~]# docker images|grep centos
REPOSITORY              TAG                 IMAGE ID            CREATED             SIZE
hellocentos              latest              05c7c5c8c6f1        21 hours ago        202 MB
docker.io/centos         latest              1e1148e4cc2c        7 weeks ago         202 MB

标签: Docker

0

CentOS构建Docker

发布于:2019-1-25 10:08 作者:admin 浏览:2403 分类:系统架构
1.安装
[root@localhost test]# yum install docker

2.启动docker
[root@localhost test]# systemctl start docker

3.运行hello-world
[root@localhost test]# docker run hello-world

Hello from Docker!
This message shows that your installation appears to be working correctly.

To generate this message, Docker took the following steps:
 1. The Docker client contacted the Docker daemon.
 2. The Docker daemon pulled the "hello-world" image from the Docker Hub.
    (amd64)
 3. The Docker daemon created a new container from that image which runs the
    executable that produces the output you are currently reading.
 4. The Docker daemon streamed that output to the Docker client, which sent it
    to your terminal.

To try something more ambitious, you can run an Ubuntu container with:
 $ docker run -it ubuntu bash

Share images, automate workflows, and more with a free Docker ID:
 https://hub.docker.com/

For more examples and ideas, visit:
 https://docs.docker.com/get-started/


4.Docker 以 ubuntu15.10 镜像创建一个新容器,然后在容器里执行 bin/echo "Hello world",然后输出结果
[root@localhost test]#docker run ubuntu:15.10 /bin/echo "Hello world"
Hello world

5.通过docker的两个参数 -i -t,让docker运行的容器实现"对话"的能力
[root@localhost test]# docker run -i -t ubuntu:15.10 /bin/bash
root@8b6cdcd4f1bb:/# ls
bin  boot  dev  etc  home  lib  lib64  media  mnt  opt  proc  root  run  sbin  srv  sys  tmp  usr  var


6.后台模式运行命令
[root@localhost test]# docker run -d ubuntu:15.10 /bin/sh -c "while true; do echo hello world; sleep 1; done"
1472118a21aa6d4931b108f75f2d4b3fadefe6bd2e89317245f3a9b1f286930e
[root@localhost test]# docker ps
CONTAINER ID        IMAGE               COMMAND                  CREATED             STATUS              PORTS               NAMES
1472118a21aa        ubuntu:15.10        "/bin/sh -c 'while..."   2 minutes ago       Up 2 minutes                            loving_montalcini
[root@localhost test]# docker logs 1472118a21aa
hello world
hello world
hello world
hello world
[root@localhost test]# docker stop 1472118a21aa
1472118a21aa
[root@localhost test]# docker ps
CONTAINER ID        IMAGE               COMMAND             CREATED             STATUS              PORTS               NAMES



7.列出镜像列表
[root@localhost test]# docker images
REPOSITORY              TAG                 IMAGE ID            CREATED             SIZE
docker.io/hello-world   latest              fce289e99eb9        3 weeks ago         1.84 kB
docker.io/ubuntu        15.10               9b9cb95443b5        2 years ago         137 MB

8.搜索镜像
[root@localhost test]# docker search lnmp
INDEX       NAME                                        DESCRIPTION                                     STARS     OFFICIAL   AUTOMATED
docker.io   docker.io/imagine10255/centos6-lnmp-php56   centos6-lnmp-php56                              50                   [OK]
docker.io   docker.io/twang2218/lnmp-nginx              这是 LNMP 示例中的 nginx 镜像                           16                   [OK]
docker.io   docker.io/winstonpro/lnmp                   based on ubuntu 14.04                           14                   
docker.io   docker.io/maxwhale/ubuntu14-lnmp1.2         Ubuntu14.04 lnmp1.2                             9                    [OK]
docker.io   docker.io/dzer/lnmp                         lnmp环境                                          8                    
docker.io   docker.io/domainer/centos-lnmp                                                              5                    [OK]
docker.io   docker.io/duckll/lnmp                       webservice                                      4                    [OK]
docker.io   docker.io/maxwhale/lnmp-docker              LNMP Docker                                     4                    [OK]
docker.io   docker.io/evagle/lnmp                       ubuntu14.04 + nginx + mysql + php + redis       3                    
docker.io   docker.io/idiswy/lnmp                       Ubuntu 16.04 + nginx 1.8.x + php7 + MySQL ...   3                    
docker.io   docker.io/c21xdx/lnmp13_cen6                php5.4                                          1                    [OK]
docker.io   docker.io/erguotou/docker-centos6-lnmp      lnmp environment in centos6                     1                    [OK]
docker.io   docker.io/fbraz3/lnmp                       An easy-to-use LNMP/LEMP image, with Ubunt...   1                    
docker.io   docker.io/gatherchou/docker-lnmp            docker-lnmp                                     1                    [OK]
docker.io   docker.io/inteye/lnmp                       LNMP1.2 (Linux, Nginx, Mysql, PHP). For de...   1                    
docker.io   docker.io/turtlell/lnmp                     first lnmp demo                                 1                    
docker.io   docker.io/twang2218/lnmp-php                这是 LNMP Docker 容器互联示例的 php 镜像                   1                    [OK]
docker.io   docker.io/zhaojianhui/lnmp                  LNMP环境                                          1                    
docker.io   docker.io/dahaitech/lnmp-douyou             douyou test lnmp                                0                    [OK]
docker.io   docker.io/huangguoji/lnmp                   lnmp.org的包                                      0                    
docker.io   docker.io/jamesatwork/docker-lnmpwp         A docker of LNMP & WordPress                    0                    [OK]
docker.io   docker.io/sixian67/lnmp                     this is my lnmp                                 0                    
docker.io   docker.io/thinksvip/lnmp                    LNMP docker production environment              0                    [OK]
docker.io   docker.io/twang2218/lnmp-mysql              This is the MySQL image of the LNMP docker...   0                    [OK]
docker.io   docker.io/zshtom/lnmp                       lnmp in centos 7                                0                    


9.下载镜像
[root@localhost test]# docker pull docker.io/idiswy/lnmp
Using default tag: latest
Trying to pull repository docker.io/idiswy/lnmp ... 
latest: Pulling from docker.io/idiswy/lnmp
f069f1d21059: Pull complete 
ecbeec5633cf: Pull complete 
ea6f18256d63: Pull complete 
54bde7b02897: Pull complete 
a3ed95caeb02: Pull complete 
ce9e695a6234: Pull complete 
346026b9659b: Pull complete 
929099c3258a: Pull complete 
064503d36445: Pull complete 
4c1032a6f902: Pull complete 
882f4453d31b: Pull complete 
Digest: sha256:ddb256e6834e5bd0dbaa0d9130ff94312ecdb1ae19669cc747e99620c4edd656
Status: Downloaded newer image for docker.io/idiswy/lnmp:latest

[root@localhost test]# docker images
REPOSITORY              TAG                 IMAGE ID            CREATED             SIZE
docker.io/hello-world   latest              fce289e99eb9        3 weeks ago         1.84 kB
docker.io/idiswy/lnmp   latest              fbd7b7c5428e        2 years ago         335 MB
docker.io/ubuntu        15.10               9b9cb95443b5        2 years ago         137 MB

10.从已经创建的容器中更新镜像,并且提交这个镜像
[root@localhost test]# docker run -t -i fbd7b7c5428e /bin/bash
[root@e594c6c84c47:/sbin# apt-get update
Get:1 http://archive.ubuntu.com/ubuntu xenial InRelease [247 kB] 
Get:2 http://archive.ubuntu.com/ubuntu xenial-updates InRelease [109 kB]                   
Get:3 http://archive.ubuntu.com/ubuntu xenial-security InRelease [109 kB]                  
Get:4 http://archive.ubuntu.com/ubuntu xenial/main Sources [1103 kB]                                                                                                                          
Get:5 http://archive.ubuntu.com/ubuntu xenial/restricted Sources [5179 B]                                                                                                                     
Get:6 http://archive.ubuntu.com/ubuntu xenial/universe Sources [9802 kB]                                                                                                                      
Get:7 http://nginx.org/packages/ubuntu xenial InRelease [4339 B]                                                                                                                              
Get:8 http://nginx.org/packages/ubuntu xenial/nginx Sources [14.1 kB]                                                                                                                         
Get:9 http://nginx.org/packages/ubuntu xenial/nginx amd64 Packages [20.1 kB]                                                                                                                  
Get:10 http://archive.ubuntu.com/ubuntu xenial/main amd64 Packages [1558 kB]                                                                                                                  
Get:11 http://archive.ubuntu.com/ubuntu xenial/restricted amd64 Packages [14.1 kB]                                                                                                            
Get:12 http://archive.ubuntu.com/ubuntu xenial/universe amd64 Packages [9827 kB]                                                                                                              
Get:13 http://archive.ubuntu.com/ubuntu xenial-updates/main Sources [415 kB]                                                                                                                  
Get:14 http://archive.ubuntu.com/ubuntu xenial-updates/restricted Sources [2684 B]                                                                                                            
Get:15 http://archive.ubuntu.com/ubuntu xenial-updates/universe Sources [303 kB]                                                                                                              
Get:16 http://archive.ubuntu.com/ubuntu xenial-updates/main amd64 Packages [1166 kB]                                                                                                          
Get:17 http://archive.ubuntu.com/ubuntu xenial-updates/restricted amd64 Packages [13.1 kB]                                                                                                    
Get:18 http://archive.ubuntu.com/ubuntu xenial-updates/universe amd64 Packages [929 kB]                                                                                                       
Get:19 http://archive.ubuntu.com/ubuntu xenial-security/main Sources [175 kB]                                                                                                                 
Get:20 http://archive.ubuntu.com/ubuntu xenial-security/restricted Sources [2243 B]                                                                                                           
Get:21 http://archive.ubuntu.com/ubuntu xenial-security/universe Sources [116 kB]                                                                                                             
Get:22 http://archive.ubuntu.com/ubuntu xenial-security/multiverse Sources [3513 B]                                                                                                           
Get:23 http://archive.ubuntu.com/ubuntu xenial-security/main amd64 Packages [767 kB]                                                                                                          
Get:24 http://archive.ubuntu.com/ubuntu xenial-security/restricted amd64 Packages [12.7 kB]                                                                                                   
Get:25 http://archive.ubuntu.com/ubuntu xenial-security/universe amd64 Packages [527 kB]                                                                                                      
Get:26 http://archive.ubuntu.com/ubuntu xenial-security/multiverse amd64 Packages [6119 B]                                                                                                    
Fetched 27.3 MB in 4min 1s (113 kB/s)                                                                                                                                                         
Reading package lists... Done


11.通过命令 docker commit来提交容器副本,创建的目标镜像名
//-m:提交的描述信息,-a:指定镜像作者,d11aaceba824:容器ID,test/lnmp:v1 :指定要创建的目标镜像名
[root@localhost test]# docker commit -m="LNMP" -a="test" d11aaceba824 test/lnmp:v1
sha256:30a7c473b0ca8e02c1d1ac0ef3188e09d12649faf60cede37e2d7ccb877331e6

[root@localhost test]# docker images
REPOSITORY              TAG                 IMAGE ID            CREATED             SIZE
test/lnmp               v1                  30a7c473b0ca        3 minutes ago       335 MB
docker.io/hello-world   latest              fce289e99eb9        3 weeks ago         1.84 kB
docker.io/idiswy/lnmp   latest              fbd7b7c5428e        2 years ago         335 MB
docker.io/ubuntu        15.10               9b9cb95443b5        2 years ago         137 MB


12.设置镜像标签
docker tag 镜像ID,这里是 860c279d2fec ,用户名称、镜像源名(repository name)和新的标签名(tag)。
使用 docker images 命令可以看到,ID为860c279d2fec的镜像多一个标签。

[root@localhost test]# docker tag 30a7c473b0ca test/lnmp:tagv1
[root@localhost test]# docker images
REPOSITORY              TAG                 IMAGE ID            CREATED             SIZE
test/lnmp               tagv1               30a7c473b0ca        15 minutes ago      335 MB
test/lnmp               v1                  30a7c473b0ca        15 minutes ago      335 MB
docker.io/hello-world   latest              fce289e99eb9        3 weeks ago         1.84 kB
docker.io/idiswy/lnmp   latest              fbd7b7c5428e        2 years ago         335 MB
docker.io/ubuntu        15.10               9b9cb95443b5        2 years ago         137 MB


13:通过 Dockerfile 构建 hellodocker 
[root@localhost test]# cat Dockerfile
FROM centos
LABEL maintainer="Hello Docker"
RUN /bin/bash
CMD ["echo","Hello Docker"]

[root@localhost test]# docker build -t hellodocker .
Sending build context to Docker daemon 2.048 kB
Step 1/4 : FROM centos
Trying to pull repository docker.io/library/centos ... 
latest: Pulling from docker.io/library/centos
a02a4930cb5d: Pull complete 
Digest: sha256:184e5f35598e333bfa7de10d8fb1cebb5ee4df5bc0f970bf2b1e7c7345136426
Status: Downloaded newer image for docker.io/centos:latest
 ---> 1e1148e4cc2c
Step 2/4 : LABEL maintainer "Hello Docker"
 ---> Running in 20e2be20052b
 ---> f255f97c4984
Removing intermediate container 20e2be20052b
Step 3/4 : RUN /bin/bash
 ---> Running in a195ff956608

 ---> ec18faa97f10
Removing intermediate container a195ff956608
Step 4/4 : CMD echo Hello Docker
 ---> Running in fcd177b109d9
 ---> 075486018a06
Removing intermediate container fcd177b109d9
Successfully built 075486018a06

[root@localhost test]# docker images hellodocker
REPOSITORY          TAG                 IMAGE ID            CREATED              SIZE
hellodocker         latest              075486018a06        About a minute ago   202 MB

[root@localhost test]# docker run -i -t hellodocker
Hello Docker

标签: Docker

0

samba的使用

发布于:2018-6-19 16:53 作者:admin 浏览:1626 分类:Linux
samba的使用
1.samba的安装
#yum install samba samba-common smbclient

2.新建共享用户和路径
#mkdir /usr/local/sambashare
#groupadd sambasharegroup
#useradd -g sambasharegroup sambashareuser
#smbpasswd -a sambashareuser
#chown -R sambashareuser:sambasharegroup /usr/local/sambashare


3.配置samba。
#vi /etc/samba/smb.conf
#共享IP:192.168.1.101, 共享名:share, 共享路径:/usr/local/sambashare, 
#共享用户需要输入的用户sambashareuser 和 刚才设置sambashareuser密码.

[share]
comment = share 
path = /usr/local/sambashare
browseable = yes
writable = yes
available = yes
valid users = sambashareuser

4.windows使用计算机->映射网络驱动器->文件夹:输入 \\liunx的IP地址\共享名 [共享地址]。即可使用。当做本地一个磁盘,用本地的编辑器操作linux的文件 企业微信截图_20180619165812.png

标签: samba

0

hive安装

发布于:2018-6-11 14:41 作者:admin 浏览:2235 分类:系统架构

 

环境要求

Java jdk1.8.0_17
Hadoop 2.9.1
Hive-2.3.3
Mysql 5.5.56
MySQL驱动:mysql-connector-java.jar
 


hive下载

#wget http://mirror.bit.edu.cn/apache/hive/hive-2.2.0/apache-hive-2.2.0-bin.tar.gz
#tar -xzvf apache-hive-2.2.0-bin.tar.gz
#mv apache-hive-2.3.3-bin /usr/local/soft/hive
#cp mysql-connector-java.jar /usr/local/soft/hive/lib/
 


设置环境变量
#vi /etc/profile
export HIVE_HOME=/usr/local/soft/hive
export PATH=${HIVE_HOME}/bin:$PATH
export CLASSPATH=.:${HIVE_HOME}/lib:$CLASSPATH

 

MYSQL数据库设置(元数据库)
#CREATE DATABASE hive DEFAULT CHARACTER SET utf8 COLLATE utf8_general_ci;
#GRANT ALL PRIVILEGES ON hive.* TO 'hive'@'%' IDENTIFIED BY 'hive' WITH GRANT OPTION;
#FLUSH PRIVILEGES;

 

Hive配置文件

#cp hive-default.xml.template hive-site.xml
#vi hive-site.xml

<configuration>
<property>
<name>javax.jdo.option.ConnectionURL</name>
<value>jdbc:mysql://localhost:3306/hive?createDatabaseIfNotExist=true</value>
</property>
<property>
<name>javax.jdo.option.ConnectionDriverName</name>
<value>com.mysql.jdbc.Driver</value>
</property>
<property>
<name>javax.jdo.option.ConnectionUserName</name>
<value>hive</value>
</property>
<property>
<name>javax.jdo.option.ConnectionPassword</name>
<value>hive</value>
</property>
</configuration>

 

初始化HIVE数据库

#/usr/local/soft/hive/bin/schematool -dbType  mysql -initSchema

启动Hive

#/usr/local/soft/hive/bin/hive
#hive> show databases;
#hive> create database wordcount;
#hive> use wordcount;
#hive> create table words(name string,num int);
#hive> insert into words(name,num) values('hello',2);
#hive> insert into words(name,num) values('world',1);
#hive> insert into words(name,num) values('hello',1);
#hive> select * from words;
#hive> select name,sum(num) from words group by name;
 


 

查看Hive文件和Mysql数据的元数据库hive.

mysql>select * from hive.DBS;

 

 

标签: Hadoop hive

0

Hadoop实战-PHP-MapReduce

发布于:2018-6-8 8:51 作者:admin 浏览:2188 分类:系统架构

1. 编写Mapper的代码

#vi WordMap.php

#!/usr/bin/php
<?php
while (($line = fgets(STDIN)) !== false) 
{  
   $words = preg_split('/(\s+)/', $line);    
   foreach ($words as $word) 
   {  
       echo $word."\t"."1".PHP_EOL;  
   }  
}  
?> 

 


2.编写Reducer的代码
#vi WordReduce.php

 

#!/usr/bin/php
<?php
$result=array();
while (($line = fgets(STDIN)) !== false) 
{  
    $line = trim($line);
 list($k, $v) = explode("\t", $line);
 $result[$k] += $v; 
}  
ksort($result);
foreach($result as $word => $count)
{
 echo $word."\t".$count.PHP_EOL;  
}
?>

 

 

 

3.运行WordMapReduce

#chmod 0777 WordMap.php
#chmod 0777 WordReduce.php
#bin/hadoop  jar share/hadoop/tools/lib/hadoop-streaming-2.9.1.jar  -mapper WordMap.php -reducer WordReduce.php  -input HdfsInput/* -output HdfsOutput 


4.查看运行结果

#hadoop fs -ls HdfsOutput
#hadoop fs -cat HdfsOutput/*
#hadoop fs -get HdfsOutput LocalOutput
#cat LocalOutput/*

 

标签: Hadoop MapReduce

0

Hadoop实战-MapReduce

发布于:2018-6-7 12:41 作者:admin 浏览:1889 分类:系统架构

 

Hadoop实战-环境搭建

http://www.wangfeilong.cn/server/114.html

 

 

Hadoop实战-MapReduce

1. 编写Mapper的代码

#vi WordMap.java

import java.io.IOException;
import org.apache.hadoop.io.LongWritable;
import org.apache.hadoop.io.Text;
import org.apache.hadoop.mapreduce.Mapper;


//实现Mapper
public class WordMap extends Mapper<LongWritable, Text, Text, LongWritable>{

    @Override
    protected void map(LongWritable key, Text value, Mapper<LongWritable, Text, Text, LongWritable>.Context context)
            throws IOException, InterruptedException {
        //读取到的一行字符串,按照空格分割单词
        String line = value.toString();
        String[] words = line.split(" ");
       
        for (String word : words) {
            //将分割的单词word输出为key,次数输出为value,次数为1,这行数据会输到reduce中,
            context.write(new Text(word), new LongWritable(1));
        }
    }
}

 

2.编写Reducer的代码


#vi WordReduce.java


import java.io.IOException;
import org.apache.hadoop.io.LongWritable;
import org.apache.hadoop.io.Text;
import org.apache.hadoop.mapreduce.Reducer;

//实现Reducer
public class WordReduce extends Reducer<Text, LongWritable, Text, LongWritable> {

    @Override
 
 /**
  * 第一个Text: 是传入的单词名称,是Mapper中传入的
  * 第二个:LongWritable 是该单词出现了多少次,这个是mapreduce计算出来的
  * 第三个Text: 是输出单词的名称 ,这里是要输出到文本中的内容
  * 第四个LongWritable: 是输出时显示出现了多少次,这里也是要输出到文本中的内容
  */
    protected void reduce(Text key, Iterable<LongWritable> values,
            Reducer<Text, LongWritable, Text, LongWritable>.Context context) throws IOException, InterruptedException {
       
  //累加统计
  long count = 0;
        for (LongWritable num : values) {
            count += num.get();
        }
        context.write(key, new LongWritable(count));
    }
}


3.编写main方法执行这个MapReduce


#vi WordMapReduce.java

import java.io.IOException;
import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.fs.Path;
import org.apache.hadoop.io.LongWritable;
import org.apache.hadoop.io.Text;
import org.apache.hadoop.mapreduce.Job;
import org.apache.hadoop.mapreduce.lib.input.FileInputFormat;
import org.apache.hadoop.mapreduce.lib.output.FileOutputFormat;


//实现MapReduce
public class WordMapReduce{

    public static void main(String[] args) throws IOException {
        Configuration conf = new Configuration();
        //如果是打包在linux上运行,则不需要写这两行代码
  /*       
  //指定运行在yarn中
        conf.set("mapreduce.framework.name", "yarn");
        //指定resourcemanager的主机名
        conf.set("yarn.resourcemanager.hostname", "localhost");
  */
        Job job = Job.getInstance(conf);
       
        //使得hadoop可以根据类包,找到jar包在哪里
        job.setJarByClass(WordMapReduce.class);
       
        //指定Mapper的类
        job.setMapperClass(WordMap.class);
        //指定reduce的类
        job.setReducerClass(WordReduce.class);
       
        //设置Mapper输出的类型
        job.setMapOutputKeyClass(Text.class);
        job.setMapOutputValueClass(LongWritable.class);
       
        //设置最终输出的类型
        job.setOutputKeyClass(Text.class);
        job.setOutputValueClass(LongWritable.class);
       
        //指定输入文件的位置,这里为了灵活,接收外部参数
        FileInputFormat.setInputPaths(job, new Path(args[0]));
        //指定输入文件的位置,这里接收启动参数
        FileOutputFormat.setOutputPath(job, new Path(args[1]));
       
        //将job中的参数,提交到yarn中运行
        //job.submit();
        try {
            job.waitForCompletion(true);
            //这里的为true,会打印执行结果
        } catch (ClassNotFoundException | InterruptedException e) {
            e.printStackTrace();
        }
    }
}

 

4. 编译WordMapReduce
注意环境变量
#export CLASSPATH=.:/usr/local/soft/jdk1.8.0_171/lib:/usr/local/soft/jdk1.8.0_171/jre/lib:$(/usr/local/soft/hadoop/bin/hadoop classpath):$CLASSPATH

编译
#javac  WordMap.java
#javac  WordReduce.java
#javac  WordMapReduce.java

5.打包 WordMap、WordReduce、WordMapReduce的class打包
#jar cvf WordMapReduce.jar Word*.class

6.运行WordMapReduce
#hadoop jar WordMapReduce.jar WordMapReduce HdfsInput HdfsOutput

7.查看运行结果
#hadoop fs -ls HdfsOutput
#hadoop fs -cat HdfsOutput/*
#hadoop fs -get HdfsOutput LocalOutput
#cat LocalOutput/*
 

标签: Hadoop MapReduce

0

Hadoop实战-环境搭建

发布于:2018-6-7 10:55 作者:admin 浏览:2154 分类:系统架构

Hadoop实战(1)-环境搭建

 

1.准备的软件
centos7
SSH
Java 1.8.0_171
Hadoop 2.9.1

2.安装SSH
#yum install openssh-server openssh-clients

3.新建软件安装目录
#mdkir -p /usr/local/soft/
#cd /usr/local/soft/

3.安装Java Java 1.8.0_171
3.1. 下载
#wget http://download.oracle.com/otn-pub/java/jdk/8u171-b11/512cd62ec5174c3487ac17c61aaa89e8/jdk-8u171-linux-x64.tar.gz?AuthParam=1528334282_eed030b012c430a6a5d6cebcfd2ff96f
3.2. 解压
#tar –zvxf jdk-8u171-linux-x64.tar.gz
3.3. 设置环境变量
#vi /etc/profile
export JAVA_HOME=/usr/local/soft/jdk1.8.0_171
export JRE_HOME=$JAVA_HOME/jre
export CLASSPATH=.:$JAVA_HOME/lib:$JRE_HOME/lib:$CLASSPATH
export PATH=$JAVA_HOME/bin:$JRE_HOME/bin:$PATH
3.4.环境变量生效
#source /etc/profile


4. 安装 Hadoop 2.9.1
4.1. 下载
#wget https://mirrors.tuna.tsinghua.edu.cn/apache/hadoop/common/hadoop-2.9.1/hadoop-2.9.1.tar.gz
4.2  解压
#tar –zvxf hadoop-2.9.1.tar.gz
4.3  更改文件名为hadoop
#mv hadoop-2.9.1 hadoop

4.4. 设置环境变量
#vi /etc/profile
export Hadoop_HOME=/usr/local/soft/hadoop
export PATH=${HADOOP_HOME}/bin:${HADOOP_HOME}/sbin:$PATH
export CLASSPATH=$($HADOOP_HOME/bin/hadoop classpath):$CLASSPATH

4.5.环境变量生效
#source /etc/profile


5. Hadoop单机模式
5.1 Hadoop单机模式配置
#cd /usr/local/soft/hadoop/
#vi etc/hadoop/hadoop-env.sh
export JAVA_HOME=/usr/local/soft/jdk1.8.0_171

5.2 Hadoop单机模式实战
#mkdir LocalInput
#cp etc/hadoop/*.xml LocalInput
#bin/hadoop jar share/hadoop/mapreduce/hadoop-mapreduce-examples-2.9.1.jar grep LocalInput LocalOutput 'dfs[a-z.]+'
#cat LocalOutput/*

6. SSH免登录设置
# ssh-keygen -t rsa -P '' -f ~/.ssh/id_rsa
# cat ~/.ssh/id_rsa.pub >> ~/.ssh/authorized_keys
# chmod 0600 ~/.ssh/authorized_keys
# ssh localhost

 

7 Hadoop伪分布模式
7.1 Hadoop伪分布模式配置
7.1.1 #vi etc/hadoop/core-site.xml

<configuration>
    <property>
        <name>fs.defaultFS</name>
        <value>hdfs://localhost:9000</value>
    </property>
</configuration>

7.1.2 #vi etc/hadoop/hdfs-site.xml
<configuration>
    <property>
        <name>dfs.replication</name>
        <value>1</value>
    </property>
</configuration>

7.1.3 #vi etc/hadoop/mapred-site.xml
<configuration>
    <property>
        <name>mapreduce.framework.name</name>
        <value>yarn</value>
    </property>
</configuration>

7.1.4 #vi etc/hadoop/yarn-site.xml
<configuration>
    <property>
        <name>yarn.nodemanager.aux-services</name>
        <value>mapreduce_shuffle</value>
    </property>
</configuration>


7.2 Hadoop伪分布模式启动和查看
7.2.1 格式化文件系统
# bin/hdfs namenode -format

7.2.2 启动 NameNode 、DataNode 、ResourceManager 、NodeManager
#sbin/start-all.sh

7.2.3 查看监控页面
http://localhost:50070/  (查看NameNode)
http://localhost:8088/   (查看ResourceManager)


7.3 Hadoop伪分布模式文件上传和下载
7.3.1新建执行 MapReduce jobs 需要的目录
#bin/hdfs dfs -mkdir /user
#bin/hdfs dfs -mkdir /user/root

7.3.2 本地文件上传到HDFS和从HDFS下载本地
新建本地文件
#cd LocalInput
#vi F1.txt
Hello World
Hello Hadoop
#vi F2.txt
Hello JAVA
JAVA 是 一门 面向对象 编程 语言

把本地文件上传到HDFS
#bin/hdfs dfs -put LocalInput/*.txt HdfsInput

查看HDFS文件
#bin/hdfs dfs -ls HdfsInput

把HDFS文件下载到本地LocalOutput
#bin/hdfs dfs -get HdfsInput LocalOutput

查看已经下载到本地的文件
#ls -l LocalOutput


7.4 Hadoop伪分布模式停止
#sbin/stop-all.sh

 

 

Hadoop实战(2)-MapReduce

http://www.wangfeilong.cn/server/115.html

 

 

Hadoop实战(3)-PHP-MapReduce

 http://www.wangfeilong.cn/server/116.html

 

标签: Hadoop

0

为什么centos7的service命令无法启动服务

发布于:2017-3-15 16:41 作者:admin 浏览:1702 分类:Linux
CentOS 7.0中一个最主要的改变,就是切换到了systemd。它用于替代红帽企业版Linux前任版本中的SysV和Upstart,对系统和服务进行管理。systemd兼容SysV和Linux标准组的启动脚本。
Systemd是一个Linux操作系统下的系统和服务管理器。它被设计成向后兼容SysV启动脚本,并提供了大量的特性,如开机时平行启动系统服务,按需启动守护进程,支持系统状态快照,或者基于依赖的服务控制逻辑。
 
先前的使用SysV初始化或Upstart的红帽企业版Linux版本中,使用位于/etc/rc.d/init.d/目录中的bash初始化脚本进行管理。而在RHEL 7/CentOS 7中,这些启动脚本被服务单元取代了。服务单元以.service文件扩展结束,提供了与初始化脚本同样的用途。要查看、启动、停止、重启、启用或者禁用系统服务,你要使用systemctl来代替旧的service命令。
注:为了向后兼容,旧的service命令在CentOS 7中仍然可用,它会重定向所有命令到新的systemctl工具。
使用systemctl来启动/停止/重启服务
要启动一个服务,你需要使用如下命令:
# systemctl start httpd.service
这会启动httpd服务,就我们而言,Apache HTTP服务器。
要停掉它,需要以root身份使用该命令:
# systemctl stop httpd.service
要重启,你可以使用restart选项,如果服务在运行中,它将重启服务;如果服务不在运行中,它将会启动。你也可以使用try-start选项,它只会在服务已经在运行中的时候重启服务。同时,reload选项你也可以有,它会重新加载配置文件。
# systemctl restart httpd.service
# systemctl try-restart httpd.service
# systemctl reload httpd.service
我们例子中的命令看起来会像下面这样:

检查服务状态
要检查服务状态,你可以使用status选项,看这里:
# systemctl status httpd.service
输出结果就像这样:

它会告诉你运行中的服务的方方面面。
使用启用/禁用服务来控制开机启动
你也可以使用enable/disable选项来控制一个服务是否开机启动,命令如下:
# systemctl enable httpd.service
# systemctl disable httpd.service

标签: centos7 service

0

CentOS上yum安装Nginx服务

发布于:2017-3-15 16:34 作者:admin 浏览:2182 分类:系统架构

原因:由于centos没有默认的nginx软件包,需要启用REHL的附件包

rpm -Uvh http://download.Fedora.RedHat.com/pub/epel/5/i386/epel-release-5-4.noarch.rpm
yum -y install nginx

 

设置开机启动

chkconfig nginx on

 

安装spawn-fcgi来运行php-cgi

yum install spawn-fcgi

 

 

下载spawn-fcgi 的启动脚本

wget http://bash.cyberciti.biz/dl/419.sh.zip
unzip 419.sh.zip
mv 419.sh /etc/init.d/php_cgi
chmod +x /etc/init.d/php_cgi

 

启动php_cgi

/etc/init.d/php_cgi start

 

查看进程

netstat -tulpn | grep :9000

 

若出现如下代表一切正常

tcp 0 0 127.0.0.1:9000 0.0.0.0:* LISTEN 4352/php-cgi

 

 

配置nginx(详细配置见nginx.conf详细说明)

location ~ \.php$ {
root html;
fastcgi_pass 127.0.0.1:9000;
fastcgi_index index.php;
fastcgi_param SCRIPT_FILENAME /usr/share/nginx/html$fastcgi_script_name;
include fastcgi_params;
}

 

查看phpinfo
phpinfo();

 

安装phpmyadmin
修改/var/lib/php/session的权限和nginx和php_cgi一致

chown -R www.www /var/lib/php/session

标签: nginx yum CentOS

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