安装 OpenShift Origin
前言
这两年容器技术太火了，很多大公司后台的应用都完成了容器化的转变，容器化代表了 DevOps 领域的一个未来趋势
就像 kvm 的虚拟化有一个 openstack 的开源 iaas 与之相对应一样，docker 的容器技术也有一个 openshift 的开源 paas 与之相对应
什么是 openshift
openshift 是一个开源的容器应用平台
什么是 openshift origin
openshift origin 是用来支持 openshift 产品的一个上游社区项目，围绕 Docker 容器和 Kubernetes 集群技术，一套来进行应用生命周期管理的 DevOps 工具，它提供了一个完整的开源容器应用平台
Origin is the upstream community project that powers OpenShift. Built around a core of Docker container packaging and Kubernetes container cluster management, Origin is also augmented by application lifecycle management functionality and DevOps tooling. Origin provides a complete open source container application platform
DevOps
现在流行的 DevOps 文化就是在当前机器越来越便宜而人力相对而言越来越贵的大前提下，可以节约人力，就尽量使用机器的一种现象
(伴随的结果就是生产效率越来越高)
个人看来，人类从未停止过最大化使用有限资源的步伐
针对 IT 领域，有限的资源就指硬件资源和人力资源
(硬件资源又可以粗略的划分为计算，存储和网络资源)
硬件资源的池化，诞生了虚拟化技术，进一步地提升了以有硬件的使用效率，节约了资源
虚拟化技术虽然巧妙，但不免有些厚重，放弃深层隔离主动使用更浅的隔离再加上系统层面的资源约束可以更为充分地榨取以有硬件的资源，于是在自然地实践中诞生了容器技术
容器技术并不专指 Docker ，容器技术有好几种(LXC libcontainer，都是基于 linux 中 namespace 和 cgroup 的内核特性)，Docker 只是其中一种打包方案，Docker 的意义在于制定了一系列标准，一系列统一接口，从而让容器技术更简单地流行起来
DevOps 过程中最常见的系统就是 CI/CD
CI/CD(持续集成/持续交付) 系统因为有了容器技术一切都变得简单和高效起来，结合前面讲的 GitLab ，就可以逐步构建出一个 DevOps 生态链
SDX
与此同时，上面这个演进脉络中可以隐约看出一个 SDX 的路径
网络资源的虚拟化叫 SDN (软件定义网络)
服务器硬件资源的虚拟华可以叫 SDC (软件定义计算机)
云平台的资源虚拟化可以叫 SDI (软件定义基础架构，包括了 SDN)
软件运行环境的虚拟化可以叫 SDE (软件定义环境，也就是容器技术)
这个 SDX 中的 X 代表了 everything ，软件定义一切
因为软件定义了一切，于是可以更加标准和简洁地被计算机接受和处理，于是可以解放人类的有限而昂贵的劳动力，同时更加充分地榨取现有计算资源
在这里简单地实现一下 openshift origin 的部署
细节的展开，将在后面的文章中慢慢展开
Tip: 当前最新版本为 OpenShift Origin 1.5
详细信息可以参考 openshift origin 的官方文档 ，还可以跟进 openshift origin GitHub 项目
概要
系统环境
[root@much ~]# hostnamectl
Static hostname: much
Icon name: computer-vm
Chassis: vm
Machine ID: 33dc28f7e76c4903ad9b603b77e29a7c
Boot ID: 17c7c182aeda49aa94a14491067ca767
Virtualization: kvm
Operating System: CentOS Linux 7 (Core)
CPE OS Name: cpe:/o:centos:centos:7
Kernel: Linux 3.10.0-514.21.1.el7.x86_64
Architecture: x86-64
[root@much ~]# ip a
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN qlen 1
link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
inet 127.0.0.1/8 scope host lo
valid_lft forever preferred_lft forever
inet6 ::1/128 scope host
valid_lft forever preferred_lft forever
2: enp0s3: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP qlen 1000
link/ether 08:00:27:04:c7:5a brd ff:ff:ff:ff:ff:ff
inet 10.0.2.15/24 brd 10.0.2.255 scope global dynamic enp0s3
valid_lft 85616sec preferred_lft 85616sec
inet6 fe80::2bb7:5b3:9584:d8eb/64 scope link
valid_lft forever preferred_lft forever
3: enp0s8: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP qlen 1000
link/ether 08:00:27:b5:a5:da brd ff:ff:ff:ff:ff:ff
inet 192.168.56.206/24 brd 192.168.56.255 scope global enp0s8
valid_lft forever preferred_lft forever
inet6 fe80::a00:27ff:feb5:a5da/64 scope link
valid_lft forever preferred_lft forever
4: virbr0: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc noqueue state DOWN qlen 1000
link/ether 52:54:00:16:5e:11 brd ff:ff:ff:ff:ff:ff
inet 192.168.122.1/24 brd 192.168.122.255 scope global virbr0
valid_lft forever preferred_lft forever
5: virbr0-nic: <BROADCAST,MULTICAST> mtu 1500 qdisc pfifo_fast master virbr0 state DOWN qlen 1000
link/ether 52:54:00:16:5e:11 brd ff:ff:ff:ff:ff:ff
[root@much ~]# uname -a
Linux much 3.10.0-514.21.1.el7.x86_64 #1 SMP Thu May 25 17:04:51 UTC 2017 x86_64 x86_64 x86_64 GNU/Linux
[root@much ~]# 查看系统的包信息
openshift-origin15 是当前最新的版本
[root@much ~]# rpm -qa | grep openshift
[root@much ~]# rpm -qa | grep docker
[root@much ~]# yum list all | grep openshift
centos-release-openshift-origin.noarch 1-1.el7.centos extras
centos-release-openshift-origin13.noarch 1-1.el7.centos extras
centos-release-openshift-origin14.noarch 1-1.el7.centos extras
centos-release-openshift-origin15.noarch 1-1.el7.centos extras
[root@much ~]# yum list all | grep docker
cockpit-docker.x86_64 141-3.el7.centos extras
docker.x86_64 2:1.12.6-32.git88a4867.el7.centos
docker-client.x86_64 2:1.12.6-32.git88a4867.el7.centos
docker-client-latest.x86_64 1.13.1-13.gitb303bf6.el7.centos
docker-common.x86_64 2:1.12.6-32.git88a4867.el7.centos
docker-devel.x86_64 1.3.2-4.el7.centos extras
docker-distribution.x86_64 2.6.1-1.el7 extras
docker-forward-journald.x86_64 1.10.3-44.el7.centos extras
docker-latest.x86_64 1.13.1-13.gitb303bf6.el7.centos
docker-latest-logrotate.x86_64 1.13.1-13.gitb303bf6.el7.centos
docker-latest-v1.10-migrator.x86_64 1.13.1-13.gitb303bf6.el7.centos
docker-logrotate.x86_64 2:1.12.6-32.git88a4867.el7.centos
docker-lvm-plugin.x86_64 2:1.12.6-32.git88a4867.el7.centos
docker-novolume-plugin.x86_64 2:1.12.6-32.git88a4867.el7.centos
docker-python.x86_64 1.4.0-115.el7 extras
docker-registry.noarch 0.6.8-8.el7 extras
docker-registry.x86_64 0.9.1-7.el7 extras
docker-unit-test.x86_64 2:1.12.6-32.git88a4867.el7.centos
docker-v1.10-migrator.x86_64 2:1.12.6-32.git88a4867.el7.centos
python-docker-py.noarch 1.10.6-1.el7 extras
python-docker-pycreds.noarch 1.10.6-1.el7 extras
[root@much ~]# yum info centos-release-openshift-origin15.noarch
Loaded plugins: fastestmirror, langpacks
Loading mirror speeds from cached hostfile
* base: mirrors.cn99.com
* c7-media:
* extras: mirrors.cn99.com
* updates: mirrors.cn99.com
Available Packages
Name : centos-release-openshift-origin15
Arch : noarch
Version : 1
Release : 1.el7.centos
Size : 11 k
Repo : extras/7/x86_64
Summary : Yum configuration for OpenShift Origin 1.5 packages
URL : https://wiki.centos.org/SpecialInterestGroup/PaaS/OpenShift
License : GPLv2
Description : yum configuration for OpenShift Origin 1.5 packages as delivered via the
: CentOS PaaS SIG.
[root@much ~]# 安装 openshift-origin15 库
[root@much ~]# yum install centos-release-openshift-origin15.noarch
Loaded plugins: fastestmirror, langpacks
Loading mirror speeds from cached hostfile
* base: mirrors.cn99.com
* c7-media:
* extras: mirrors.cn99.com
* updates: mirrors.cn99.com
Resolving Dependencies
--> Running transaction check
---> Package centos-release-openshift-origin15.noarch 0:1-1.el7.centos will be installed
--> Processing Dependency: centos-release-paas-common for package: centos-release-openshift-origin15-1-1.el7.centos.noarch
--> Running transaction check
---> Package centos-release-paas-common.noarch 0:1-1.el7.centos will be installed
--> Finished Dependency Resolution
Dependencies Resolved
============================================================================================================================================================================================
Package Arch Version Repository Size
============================================================================================================================================================================================
Installing:
centos-release-openshift-origin15 noarch 1-1.el7.centos extras 11 k
Installing for dependencies:
centos-release-paas-common noarch 1-1.el7.centos extras 11 k
Transaction Summary
============================================================================================================================================================================================
Install 1 Package (+1 Dependent package)
Total download size: 22 k
Installed size: 37 k
Is this ok [y/d/N]: y
Downloading packages:
(1/2): centos-release-openshift-origin15-1-1.el7.centos.noarch.rpm | 11 kB 00:00:00
(2/2): centos-release-paas-common-1-1.el7.centos.noarch.rpm | 11 kB 00:00:00
--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Total 53 kB/s | 22 kB 00:00:00
Running transaction check
Running transaction test
Transaction test succeeded
Running transaction
Installing : centos-release-paas-common-1-1.el7.centos.noarch 1/2
Installing : centos-release-openshift-origin15-1-1.el7.centos.noarch 2/2
Verifying : centos-release-paas-common-1-1.el7.centos.noarch 1/2
Verifying : centos-release-openshift-origin15-1-1.el7.centos.noarch 2/2
Installed:
centos-release-openshift-origin15.noarch 0:1-1.el7.centos
Dependency Installed:
centos-release-paas-common.noarch 0:1-1.el7.centos
Complete!
[root@much ~]# echo $?
0
[root@much ~]# rpm -ql centos-release-openshift-origin15
/etc/yum.repos.d/CentOS-OpenShift-Origin15.repo
/usr/share/licenses/centos-release-openshift-origin15-1
/usr/share/licenses/centos-release-openshift-origin15-1/LICENSE
[root@much ~]# ll /etc/yum.repos.d/
total 32
-rw-r--r--. 1 root root 1664 11月 30 2016 CentOS-Base.repo
-rw-r--r--. 1 root root 1309 11月 30 2016 CentOS-CR.repo
-rw-r--r--. 1 root root 649 11月 30 2016 CentOS-Debuginfo.repo
-rw-r--r--. 1 root root 314 11月 30 2016 CentOS-fasttrack.repo
-rw-r--r--. 1 root root 630 6月 16 01:08 CentOS-Media.repo
-rw-r--r--. 1 root root 884 5月 25 02:37 CentOS-OpenShift-Origin15.repo
-rw-r--r--. 1 root root 1331 11月 30 2016 CentOS-Sources.repo
-rw-r--r--. 1 root root 2893 11月 30 2016 CentOS-Vault.repo
[root@much ~]# ll /etc/yum.repos.d/ | grep OpenShift
-rw-r--r--. 1 root root 884 5月 25 02:37 CentOS-OpenShift-Origin15.repo
[root@much ~]# CentOS-OpenShift-Origin15.repo 就是安装后产生的库配置文件
安装 origin
[root@much ~]# yum install origin
Loaded plugins: fastestmirror, langpacks
Loading mirror speeds from cached hostfile
* base: mirrors.btte.net
* c7-media:
* extras: centos.ustc.edu.cn
* updates: mirrors.btte.net
Resolving Dependencies
--> Running transaction check
---> Package origin.x86_64 0:1.5.1-1.el7 will be installed
--> Processing Dependency: origin-clients = 1.5.1-1.el7 for package: origin-1.5.1-1.el7.x86_64
--> Running transaction check
---> Package origin-clients.x86_64 0:1.5.1-1.el7 will be installed
--> Finished Dependency Resolution
Dependencies Resolved
============================================================================================================================================================================================
Package Arch Version Repository Size
============================================================================================================================================================================================
Installing:
origin x86_64 1.5.1-1.el7 centos-openshift-origin15 35 M
Installing for dependencies:
origin-clients x86_64 1.5.1-1.el7 centos-openshift-origin15 16 M
Transaction Summary
============================================================================================================================================================================================
Install 1 Package (+1 Dependent package)
Total download size: 51 M
Installed size: 334 M
Is this ok [y/d/N]: y
Downloading packages:
warning: /var/cache/yum/x86_64/7/centos-openshift-origin15/packages/origin-clients-1.5.1-1.el7.x86_64.rpm: Header V4 RSA/SHA1 Signature, key ID 2f297ecc: NOKEY MB/s | 36 MB 00:00:12 ETA
Public key for origin-clients-1.5.1-1.el7.x86_64.rpm is not installed
(1/2): origin-clients-1.5.1-1.el7.x86_64.rpm | 16 MB 00:00:29
(2/2): origin-1.5.1-1.el7.x86_64.rpm | 35 MB 00:00:43
--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Total 1.2 MB/s | 51 MB 00:00:43
Retrieving key from file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-SIG-PaaS
Importing GPG key 0x2F297ECC:
Userid : "CentOS PaaS SIG (https://wiki.centos.org/SpecialInterestGroup/PaaS) <security@centos.org>"
Fingerprint: c5e8 ab44 6fa7 893d 7490 51f1 c34c 5bd4 2f29 7ecc
Package : centos-release-paas-common-1-1.el7.centos.noarch (@extras)
From : /etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-SIG-PaaS
Is this ok [y/N]: y
Running transaction check
Running transaction test
Transaction test succeeded
Running transaction
Installing : origin-clients-1.5.1-1.el7.x86_64 1/2
Installing : origin-1.5.1-1.el7.x86_64 2/2
Verifying : origin-1.5.1-1.el7.x86_64 1/2
Verifying : origin-clients-1.5.1-1.el7.x86_64 2/2
Installed:
origin.x86_64 0:1.5.1-1.el7
Dependency Installed:
origin-clients.x86_64 0:1.5.1-1.el7
Complete!
[root@much ~]# echo $?
0
[root@much ~]#安装 docker
[root@much ~]# yum install docker
Loaded plugins: fastestmirror, langpacks
Loading mirror speeds from cached hostfile
* base: mirrors.btte.net
* c7-media:
* extras: centos.ustc.edu.cn
* updates: mirrors.btte.net
Resolving Dependencies
255
[root@much ~]# 启动 docker
[root@much ~]# service docker status
Redirecting to /bin/systemctl status docker.service
● docker.service - Docker Application Container Engine
Loaded: loaded (/usr/lib/systemd/system/docker.service; disabled; vendor preset: disabled)
Active: inactive (dead)
Docs: http://docs.docker.com
[root@much ~]# service docker start
Redirecting to /bin/systemctl start docker.service
[root@much ~]# service docker status
Redirecting to /bin/systemctl status docker.service
● docker.service - Docker Application Container Engine
Loaded: loaded (/usr/lib/systemd/system/docker.service; disabled; vendor preset: disabled)
Active: active (running) since Wed 2017-07-26 16:54:47 CST; 2s ago
Docs: http://docs.docker.com
Main PID: 4503 (dockerd-current)
CGroup: /system.slice/docker.service
├─4503 /usr/bin/dockerd-current --add-runtime docker-runc=/usr/libexec/docker/docker-runc-current --default-runtime=docker-runc --exec-opt native.cgroupdriver=systemd --userl...
└─4510 /usr/bin/docker-containerd-current -l unix:///var/run/docker/libcontainerd/docker-containerd.sock --shim docker-containerd-shim --metrics-interval=0 --start-timeout 2m...
Jul 26 16:54:47 much dockerd-current[4503]: time="2017-07-26T16:54:47.084186855+08:00" level=info msg="devmapper: Successfully created filesystem xfs on device docker-253:0-36170928-base"
Jul 26 16:54:47 much dockerd-current[4503]: time="2017-07-26T16:54:47.142557140+08:00" level=info msg="Graph migration to content-addressability took 0.00 seconds"
Jul 26 16:54:47 much dockerd-current[4503]: time="2017-07-26T16:54:47.143901310+08:00" level=info msg="Loading containers: start."
Jul 26 16:54:47 much dockerd-current[4503]: time="2017-07-26T16:54:47.165721252+08:00" level=info msg="Firewalld running: true"
Jul 26 16:54:47 much dockerd-current[4503]: time="2017-07-26T16:54:47.321680923+08:00" level=info msg="Default bridge (docker0) is assigned with an IP address 172.17.0.0/16.... IP address"
Jul 26 16:54:47 much dockerd-current[4503]: time="2017-07-26T16:54:47.466069791+08:00" level=info msg="Loading containers: done."
Jul 26 16:54:47 much dockerd-current[4503]: time="2017-07-26T16:54:47.466206492+08:00" level=info msg="Daemon has completed initialization"
Jul 26 16:54:47 much dockerd-current[4503]: time="2017-07-26T16:54:47.466222714+08:00" level=info msg="Docker daemon" commit="88a4867/1.12.6" graphdriver=devicemapper version=1.12.6
Jul 26 16:54:47 much systemd[1]: Started Docker Application Container Engine.
Jul 26 16:54:47 much dockerd-current[4503]: time="2017-07-26T16:54:47.472207628+08:00" level=info msg="API listen on /var/run/docker.sock"
Hint: Some lines were ellipsized, use -l to show in full.
[root@much ~]# 启动 openshift
[root@much ~]# openshift st本文系转载，前往查看
如有侵权，请联系 cloudcommunity@tencent.com 删除。
本文系转载，前往查看
如有侵权，请联系 cloudcommunity@tencent.com 删除。
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