一、基础环境 1、在tvm-saltmaster的基础上操作。 2、网络: eth0:host-only(用于虚拟内网,手动固定IP,这样从宿主机可以直接连接到这个vm) eth1:NAT(用于上外网,动态IP) [[email protected] ~]# cd /etc/sysconfig/network-scripts/ [[email protected] network-scripts]# cat ifcfg-eth0 DEVICE=eth0 TYPE=Ethernet ONBOOT=yes NM_CONTROLLED=yes BOOTPROTO=none IPADDR=192.168.56.253 PREFIX=24 GATEWAY=192.168.56.1 DNS1=192.168.56.254 [[email protected] network-scripts]# cat ifcfg-eth1 DEVICE=eth1 TYPE=Ethernet ONBOOT=yes NM_CONTROLLED=yes BOOTPROTO=dhcp DNS1=192.168.56.254 二、salt-master大致上是啥样的 1、基本结构 [[email protected] salt]# tree /srv/ /srv/ ├── pillar │ ├── job │ │ └── init.sls │ ├── package │ │ └── init.sls │ └── top.sls └── salt ├── base │ ├── abc │ │ ├── hosts.sls │ │ ├── init.sls │ │ ├── packages.sls │ │ └── resolv.sls │ ├── conf.d │ │ ├── dnsmasq │ │ │ └── office.conf │ │ ├── monit │ │ │ ├── monit-mail.conf │ │ │ └── salt-minion.conf │ │ ├── resolv │ │ │ ├── client.conf │ │ │ └── server.conf │ │ ├── saltstack │ │ ├── ssh │ │ │ └── sshd_config │ │ └── vim │ │ └── vimrc │ ├── crontab │ │ └── init.sls │ ├── dnsmasq │ │ └── init.sls │ ├── monit │ │ └── init.sls │ ├── postfix │ │ └── init.sls │ ├── README.TXT │ ├── salt │ │ └── minion.sls │ ├── ssh │ │ └── init.sls │ ├── top.sls │ ├── vim │ │ └── init.sls │ └── web │ └── init.sls ├── dev │ ├── top.sls │ └── web.sls ├── prod │ ├── top.sls │ └── web.sls └── qa ├── conf.d │ └── crontab │ └── client.conf ├── crontab │ └── init.sls └── top.sls 27 directories, 31 files 注意: 1)/srv/salt & /srv/pillar是安装完成后默认的路径 2)/srv/salt 下面粉了4个环境,这个是测试多环境的意图,具体配置是在这里定义的: [[email protected] salt]# cat /etc/salt/master.d/file_roots.conf # Master file_roots configuration: file_roots: base: - /srv/salt/base dev: - /srv/salt/dev qa: - /srv/salt/qa prod: - /srv/salt/prod [[email protected] salt]# mkdir /srv/salt/{base,dev,qa,prod}/ -p [[email protected] salt]# service salt-master restart 3)默认是在base环境下,这是不可缺的。以base环境为根,我们再继续往下看 4)【top.sls】,这个是一个环境的入口,可以匹配target,指定以“.sls”为后缀来定义的salt state文件,例如: [[email protected] salt]# cat base/top.sls base: ‘tvm-yum‘: - dnsmasq - crontab - web ‘*‘: - abc - monit - postfix - salt.minion - ssh - vim 上面指定了dnsmasq,其实对应的就是/srv/salt/base/dnsmasq.sls,但我们改进成通过目录来管理,因此变成: /srv/salt/base/dnsmasq/init.sls,因此我们得到6)的经验 5)【init.sls】,这个特殊的sls会继承当前目录的名称 6)通常是用多级目录来分类管理sls文件,例如: salt.minion,对应的是:/srv/salt/base/salt/minion.sls 依此类推,还可以划分的更细。 2、如何让minion的state变成我们期望的那样呢? 1)首先,我们知道可以执行指定的模块.函数来执行salt命令 salt ‘tvm-test‘ cmd.run ‘hostname‘ 2)其实执行state也是类似的。指定了target主机为:‘tvm-test‘ ,再指定一个sls文件“web.sls”,默认的saltenv=‘base‘ salt ‘tvm-test‘ state.sls web 2)指定一个其他的saltenv salt ‘tvm-test‘ state.sls crontab saltenv=‘qa‘ 2)测试开关 salt ‘tvm-test‘ state.sls crontab saltenv=‘qa‘ test=True 3)highstate方式,minions从salt-master拉取自己匹配的所有的state数据,并执行 salt ‘*‘ state.highstate 三、/srv/pillar pillar经常拿来和grains做对比。官网也有介绍: Grains and Pillar are sometimes confused, just remember that Grains are data about a minion which is stored or generated from the minion. This is why information like the OS and CPU type are found in Grains. Pillar is information about a minion or many minions stored or generated on the Salt Master. 后者(grains)记录了minions中包括了os,cpu等相对静态的k/v键值对的数据,通常是来自salt-minion上报的信息。 前者(pillar)咱们可以定义一些自定义的参数供salt的sls文件来引用,这个通常是在salt-master上为minions而定义的。 1、入口文件 [[email protected] salt]# cat /srv/pillar/top.sls base: ‘*‘: - package - job 2、针对安装包,指定vim和apache的k/v键值对 [[email protected] salt]# cat /srv/pillar/package/init.sls pkgs: {% if grains[‘os_family‘] == ‘RedHat‘ %} vim: vim-enhanced apache: httpd {% elif grains[‘os_family‘] == ‘Debian‘ %} vim: vim apache: apache2 {% elif grains[‘os‘] == ‘Arch‘ %} vim: vim apache: httpd {% endif %} 3、针对highstate,定义一个schedule [[email protected] salt]# cat /srv/pillar/job/init.sls schedule: highstate: function: state.highstate minutes: 2 四、/srv/salt 这里定义了一些state文件,重点是“base”这个环境,其次是在“qa”这个环境做一些测试的工作。 1、首先,我们保证“tvm-yum”上安装的dnsmasq,crontab和web中的服务是符合预期 1)配置dnsmasq服务的状态是:正在运行、开机启动,配置文件变得可以重启服务。 这里用到了:“pkg.installed, service.running, file.replace” -------------------------------------------------------------dnsmasq [r[email protected] salt]# cat base/dnsmasq/init.sls dnsmasq: pkg.installed: [] service.running: - enable: True - reload: True - watch: - file: /etc/dnsmasq.d/office.conf - file: /etc/dnsmasq.conf /etc/dnsmasq.d/office.conf: file.managed: - source: salt://conf.d/dnsmasq/office.conf /etc/dnsmasq.conf: file.replace: - pattern: ‘#addn-hosts=/etc/banner_add_hosts‘ - repl: ‘addn-hosts=/etc/dnsmasq.d/office.conf‘ -------------------------------------------------------------dnsmasq end 2)配置crontab服务的状态是:定时执行指定的脚本。 这里用到了:“cron.present” -------------------------------------------------------------crontab [[email protected] salt]# cat base/crontab/init.sls ## 使用cron.present这个方法来控制,默认是追加到现有的crontab中 crontab-REPO-UPDATE: cron.present: - identifier: CRON-REPO-UPDATE - name: ‘/bin/bash /data/ops/bin/repo_update.sh >/tmp/repo_update.log 2>&1 &‘ - user: root - minute: ‘0‘ - hour: ‘12‘ - daymonth: ‘*‘ - month: ‘*‘ - dayweek: ‘*‘ -------------------------------------------------------------crontab end 3)配置web服务的状态是:正在运行和开机启动。(当然,此处的处理简略粗糙) 这里用到了:“pkg.installed, service.running, pillar” -------------------------------------------------------------web [[email protected] salt]# cat base/web/init.sls apache: pkg.installed: - name: {{ pillar[‘pkgs‘][‘apache‘] }} service.running: - name: {{ pillar[‘pkgs‘][‘apache‘] }} - enable: True - require: - pkg: apache -------------------------------------------------------------web end 2、接着,我们在“abc”中列出了基本的安装包和域名解析相关的配置文件,期望的定位是:在主机上线前固定不变的一些初始化操作。 1)“init.sls”用“include”来包含了几个分类的状态文件。 这里用到了:“include” -------------------------------------------------------------abc init [[email protected] salt]# cat base/abc/init.sls include: - abc.hosts - abc.resolv - abc.packages -------------------------------------------------------------abc init end 2)“hosts.sls”更新了“/etc/hosts”文件。 这里用到了:“file.append”: -------------------------------------------------------------abc hosts [[email protected] salt]# cat base/abc/hosts.sls /etc/hosts: file.append: - text: - ‘192.168.56.253 salt-m.office.test‘ - ‘192.168.56.254 mirror.office.test‘ - "127.0.0.1 {{ grains[‘id‘] }}" -------------------------------------------------------------abc hosts end 3)“resolv.sls”更新了/etc/resolv.conf文件。 这里用到了:“if..else..endif, grains” -------------------------------------------------------------abc resolv [[email protected] salt]# cat base/abc/resolv.sls /etc/resolv.conf: file.managed: {% if grains[‘id‘] == ‘tvm-yum‘ %} - source: salt://conf.d/resolv/server.conf {% else %} - source: salt://conf.d/resolv/client.conf {% endif %} -------------------------------------------------------------abc resolv end 4)指定要安装的包。 这里用到了:“pkg.installed, pkgs, pkg.latest” -------------------------------------------------------------abc packages [[email protected] salt]# cat base/abc/packages.sls ## 此处列出主机上线时需要的软件包 # common-pkgs: pkg.installed: - pkgs: - lrzsz - wget - curl - rsync - screen - dos2unix - tree - ntp - bind-utils - nc - telnet - git ## 此处列出需要update的软件包 # up2date-pkgs: pkg.latest: - pkgs: - bash - openssl -------------------------------------------------------------abc packages end 3、最后,给出了一些自定义的配置的示例,例如针对monit,postfix,salt,ssh和vim的配置。 1)配置monit,salt的状态是:正在运行和开机启动,并配置禁用了postfix服务。 这里用到了:“pkg.installed, service.running, file.managed, service.disabled, pillar” -------------------------------------------------------------abc monit [[email protected] salt]# cat base/monit/init.sls monit: pkg.installed: [] service.running: - enable: True /etc/monit.d/monit-mail.conf: file.managed: - source: salt://conf.d/monit/monit-mail.conf - require: - pkg: monit /etc/monit.d/salt-minion.conf: file.managed: - source: salt://conf.d/monit/salt-minion.conf - require: - pkg: monit -------------------------------------------------------------abc monit end -------------------------------------------------------------abc postfix [[email protected] salt]# cat base/postfix/init.sls postfix: pkg.installed: [] service.disabled: [] -------------------------------------------------------------abc postfix end -------------------------------------------------------------abc salt [[email protected] salt]# cat base/salt/minion.sls salt-minion: pkg.installed: [] service.running: - enable: True -------------------------------------------------------------abc salt end -------------------------------------------------------------abc ssh [[email protected] salt]# cat base/ssh/init.sls openssh-clients: pkg.installed: [] openssh-server: pkg.installed: [] sshd: service.running: - enable: True - require: - pkg: openssh-clients - pkg: openssh-server - file: /etc/ssh/sshd_config /etc/ssh/sshd_config: file.managed: - source: salt://conf.d/ssh/sshd_config - require: - pkg: openssh-server -------------------------------------------------------------abc ssh end -------------------------------------------------------------abc vim end vim: pkg.installed: - name: {{ pillar[‘pkgs‘][‘vim‘] }} /root/.vimrc: file.managed: - source: salt://conf.d/vim/vimrc - require: - pkg: vim -------------------------------------------------------------abc vim end 4、中间的2个环境略过,再看看qa环境的配置. 这里用到了:“cron.file” [[email protected] salt]# cat qa/top.sls qa: ‘* and not tvm-yum‘: - crontab [[email protected] salt]# cat qa/crontab/init.sls ## 使用cron.file这个方法来控制,可以替换全部的crontab内容 cron-ntpdate-office: cron.file: - name: salt://conf.d/crontab/client.conf 要注意,这里是用“name”,而不是“source”来指定文件路径。 五、小结一下state 1、state.sls, state.highstate 2、pkg pkg.installed pkg.latest pkgs 3、file file.managed file.replace file.append 4、service service.running service.disabled 5、cron cron.present cron.file 6、grains 7、pillars 8、include ZYXW、参考 1、官网doc http://docs.saltstack.com/en/latest/topics/tutorials/pillar.html http://docs.saltstack.com/en/latest/ref/modules/all/salt.modules.state.html http://docs.saltstack.com/en/latest/ref/states/requisites.html http://docs.saltstack.com/en/latest/ref/states/all/salt.states.cron.html http://docs.saltstack.com/en/latest/ref/states/all/salt.states.file.html http://docs.saltstack.com/en/latest/ref/states/all/salt.states.pkg.html http://docs.saltstack.com/en/latest/ref/states/all/salt.states.service.html
时间: 2024-11-05 11:51:43