川大集团
目录
主机名 | 操作系统 | IP地址 | 备注 |
master01.lavenliu.com | CentOS 6.5 64位 | 192.168.20.134 | Salt主控端 |
minion01.lavenliu.com | 192.168.20.135 | Salt被控端 | |
minion02.lavenliu.com | 192.168.20.136 | Salt被控端 |
在3台机器上分别安装EPEL源,
rpm -ivh http://mirrors.ustc.edu.cn/fedora/epel//6/x86_64/epel-release-6-8.noarch.rpm
yum install -y salt-master
yum install -y salt-minion
SLS文件的默认渲染器是YAML渲染器。书写SLS文件只有简单的三条规则。
我依赖哪个state
哪个state依赖我
Salt主控端的配置如下:
[root@master01 ~]# egrep -v "^#|^$" /etc/salt/master
interface:192.168.20.134
file_roots:
base:
- /etc/salt/states
prod:
- /etc/salt/states/prod
Salt Master常用的配置说明:
+ interface: 指定bind的地址(默认为0.0.0.0)
+ publish_port: 指定发布端口(默认为4506)
+ ret_port: 指定结果返回端口,与minion配置文件中的master_port对应(默认为4506)
+ user: 指定master进程的运行用户,如果调整,则需要调整部分目录的权限(默认为root)
+ timeout: 指定超时时间,如果minion规模庞大或网络状况不稳定,建议增大该值(默认5s)
+ keep_jobs: 默认情况下,minion会将执行结果返回给master,master会缓存到本地的cachedir目录,该参数指定缓存多长时间,以供查看之前
的执行结果,会占用磁盘空间(默认为24h)
+ file_recv: 是否允许minion传送文件到master(默认False)
+ file_roots:
+ pillar_roots: 指定pillar目录,默认为:
+ log_level: 执行日志级别,支持的日志级别有"garbage", "trace", "debug", "info", "warning", "error", "critical" (默认warning)
接下来创建我们指定的目录,在主控端进行操作:
mkdir -p /etc/salt/states/{init,prod}
修改完毕,启动Salt Master并加入开机启动,操作如下:
/etc/init.d/salt-master start
chkconfig salt-master on
启动完毕,进行salt的进程的验证,是否启动成功,
[root@master01 ~]# ps -ef |grep salt |grep -v grep
root 2028 1 0 11:20 ? 00:00:00 /usr/bin/python2.6 /usr/bin/salt-master -d
root 2029 2028 0 11:20 ? 00:00:09 /usr/bin/python2.6 /usr/bin/salt-master -d
root 2030 2028 0 11:20 ? 00:00:00 /usr/bin/python2.6 /usr/bin/salt-master -d
root 2033 2028 0 11:20 ? 00:00:00 /usr/bin/python2.6 /usr/bin/salt-master -d
root 2034 2028 0 11:20 ? 00:00:00 /usr/bin/python2.6 /usr/bin/salt-master -d
root 2037 2034 0 11:20 ? 00:00:01 /usr/bin/python2.6 /usr/bin/salt-master -d
root 2038 2034 0 11:20 ? 00:00:01 /usr/bin/python2.6 /usr/bin/salt-master -d
root 2039 2034 0 11:20 ? 00:00:01 /usr/bin/python2.6 /usr/bin/salt-master -d
root 2040 2034 0 11:20 ? 00:00:01 /usr/bin/python2.6 /usr/bin/salt-master -d
root 2041 2034 0 11:20 ? 00:00:01 /usr/bin/python2.6 /usr/bin/salt-master -d
root 2042 2034 0 11:20 ? 00:00:00 /usr/bin/python2.6 /usr/bin/salt-master -d
检查是否加入开机自启动,
[root@master01 ~]# chkconfig --list |grep salt
salt-master 0:off 1:off 2:on 3:on 4:on 5:on 6:off
被控端的配置很简单,只需要修改一处配置就可以让主控端与被控端进行正常的通信。在minion01及minion02上做如下的配置,如下:
[root@minion01 ~]# egrep -v "^#|^$" /etc/salt/minion
master: master01.lavenliu.com
[root@minion02 ~]# egrep -v "^#|^$" /etc/salt/minion
master: master01.lavenliu.com
这里我们使用了Salt主控端的主机名而非主控端的IP地址,主要是我们这里已经配置了DNS解析,所以使用了主机名。如果我们没有配置DNS的域名解析服务,我们改写master: <salt_master_ip>的形式来使用。
Salt Minion常用的配置说明:
+ master:指定master主机(默认为salt)
+ master_port: 指定认证和执行结果发送到master的哪个端口,与master配置文件中的ret_port对应(默认为4506)
+ id: 指定本minion的标识,salt内部使用id作为标识(默认为主机名)
+ user: 指定运行minion的用户,用于安装包、启动服务等操作需要特权用户,推荐使用root(默认root)
+ cache_jobs: minion是否
启动Salt Minion并加入开机启动,在minion01及minion02上进行操作
/etc/init.d/salt-minion start
chkconfig salt-minion on
接下来验证Salt Minion是否启动成功,
ps -ef |grep salt |grep -v grep
root 1655 1 0 11:56 ? 00:00:03 /usr/bin/python2.6 /usr/bin/salt-minion -d
chkconfig --list |grep salt
salt-minion 0:off 1:off 2:on 3:on 4:on 5:on 6:off
Salt的Master及Minion端第一次启动时都会生成证书,而Master端在生成证书之前,还会创建一个CA,并且自己将证书签发。而Minion端默认会向Master端发起一个证书请求让Master端签发,以建立信任关系。
在主控端使用salt-key来查看Minion端的证书申请请求,
[root@master01 states]# salt-key
Accepted Keys:
Denied Keys:
Unaccepted Keys:
minion01.lavenliu.com
minion02.lavenliu.com
Rejected Keys:
接受Minion端的申请,
salt-key -A
以上设置完毕,接下来验证Master与Minion端是否可以正常通信,使用test.ping进行验证,操作如下:
[root@master01 states]# salt ‘*‘ test.ping
minion01.lavenliu.com:
True
minion02.lavenliu.com:
True
返回两个True时,说明我们的Salt配置已成功。在此基础上,我们就可以做更多的配置管理了,在接下来的章节中进行说明。
我们日常简单的执行命令、查看安装包情况、查看服务运行状态情况等工作都是通过SaltStack的模块实现的。当我们安装完毕Master与Minion后,系统默认会安装很多模块,接下来具体看看怎么使用这些模块。
[root@master01 ~]# salt ‘minion01.lavenliu.com‘ sys.list_modules
minion01.lavenliu.com:
- acl
- aliases
- alternatives
- apache
- archive
- artifactory
- blockdev
- btrfs
- buildout
- cloud
- cmd
此处省略很多行
- timezone
- user
- vbox_guest
- virtualenv
- webutil
- xfs
接下来,我们查看cmd模块有哪些方法,
[root@master01 ~]# salt ‘minion01.lavenliu.com‘ sys.list_functions cmd
minion01.lavenliu.com:
- cmd.exec_code
- cmd.exec_code_all
- cmd.has_exec
- cmd.retcode
- cmd.run
- cmd.run_all
- cmd.run_chroot
- cmd.run_stderr
- cmd.run_stdout
- cmd.script
- cmd.script_retcode
- cmd.shell
- cmd.shells
- cmd.tty
- cmd.which
- cmd.which_bin
查看cmd模块的使用方法,
[root@master01 ~]# salt ‘minion01.lavenliu.com‘ sys.doc cmd
‘cmd.exec_code:‘
Pass in two strings, the first naming the executable language, aka -
python2, python3, ruby, perl, lua, etc. the second string containing
the code you wish to execute. The stdout will be returned.
CLI Example:
salt ‘*‘ cmd.exec_code ruby ‘puts "cheese"‘
‘cmd.exec_code_all:‘
Pass in two strings, the first naming the executable language, aka -
python2, python3, ruby, perl, lua, etc. the second string containing
the code you wish to execute. All cmd artifacts (stdout, stderr, retcode, pid)
will be returned.
CLI Example:
此处省略很多行
以上输出的信息很多,我们可以只查看某个模块下的某个函数的使用方法。比如我们这里要查看cmd模块下的run方法的使用,操作如下,
[root@master01 ~]# salt ‘minion01.lavenliu.com‘ sys.doc cmd.run
‘cmd.run:‘
Execute the passed command and return the output as a string
Note that ``env`` represents the environment variables for the command, and
should be formatted as a dict, or a YAML string which resolves to a dict.
Warning:
This function does not process commands through a shell
unless the python_shell flag is set to True. This means that any
shell-specific functionality such as ‘echo‘ or the use of pipes,
redirection or &&, should either be migrated to cmd.shell or
have the python_shell=True flag set here.
The use of python_shell=True means that the shell will accept _any_ input
including potentially malicious commands such as ‘good_command;rm -rf /‘.
Be absolutely certain that you have sanitized your input prior to using
python_shell=True
CLI Example:
此处省略很多行
States是SaltStack中的配置管理语言。比如我们在日常配置管理时需要编写大量的States文件,具体要安装一个软件包,然后管理其服务配置文件,最后保证该服务正常运行。针对上述步骤我们要编写一些States SLS文件来描述和实现上述功能。
要查看Minion端所支持的states有哪些,操作如下:
[root@master01 ~]# salt ‘minion01.lavenliu.com‘ sys.list_state_modules
minion01.lavenliu.com:
- acl
- alias
- alternatives
- apache
- archive
- artifactory
- blockdev
- buildout
- cloud
- cmd
- composer
- cron
- disk
此处省略很多行
比如我们要查看与file states相关的函数,操作如下:
[root@master01 ~]# salt ‘minion01.lavenliu.com‘ sys.list_state_functions file
minion01.lavenliu.com:
- file.absent
- file.accumulated
- file.append
- file.blockreplace
- file.comment
- file.copy
- file.directory
- file.exists
- file.managed
- file.missing
- file.mknod
- file.mod_run_check_cmd
- file.patch
- file.prepend
- file.recurse
- file.rename
- file.replace
- file.serialize
- file.symlink
- file.touch
- file.uncomment
在上一小节,我们列出了很多与States相关的模块,具体如何使用它们呢?我们可以在命令行查看其帮助信息。比如我们要查看file相关的使用帮助,可以操作如下,
[root@master01 ~]# salt ‘minion01.lavenliu.com‘ sys.state_doc file
此处省略无数行
由于上面输出的内容较多,故未列出。如何使用file的append函数呢?操作如下,
[root@master01 ~]# salt ‘minion01.lavenliu.com‘ sys.state_doc file.append
此处省略N行
[root@master01 states]# salt ‘*‘ cmd.run "hostname" minion02.lavenliu.com: minion02.lavenliu.com minion01.lavenliu.com: minion01.lavenliu.com [root@master01 states]# salt ‘*‘ cmd.run "hostname -I" minion01.lavenliu.com: 192.168.20.135 192.168.19.132 minion02.lavenliu.com: 192.168.20.136 192.168.19.133
salt ‘*‘ pkg.installed name=vim
文件目录结构为:
[root@master01 states]# tree . ├── init │ ├──files │ │ └── vimrc │ ├──pkg.sls │ ├──test.sls │ └──vim.sls ├── prod │ ├──jdk │ │ ├── files │ │ │ └── jdk-8u65-linux-x64.tar.gz │ │ └── install.sls │ ├──keepalived │ │ └── files │ │ └── keepalived-1.2.16.tar.gz │ ├──libevent │ │ ├── files │ │ │ └── libevent-2.0.22-stable.tar.gz │ │ └── install.sls │ ├──memcached │ │ ├── files │ │ │ └── memcached-1.4.25.tar.gz │ │ ├── install.sls │ │ └── service.sls │ ├──nginx │ │ └── files │ └──tomcat │ ├── files │ │ └── apache-tomcat-8.0.28.tar.gz │ └── install.sls └── top.sls 15 directories, 15 files
[root@master01 states]# cat prod/jdk/install.sls jdk-install: file.managed: - name: /usr/local/src/jdk-8u65-linux-x64.tar.gz - source: salt://prod/jdk/files/jdk-8u65-linux-x64.tar.gz - user: root - group: root - mode: 644 cmd.run: - name: cd /usr/local/src && tar -xf jdk-8u65-linux-x64.tar.gz && mv jdk1.8.0_65 jdk && chown -R root:root jdk - unless: test -d /usr/local/jdk /etc/profile: file.append: - text: - export JAVA_HOME=/usr/local/jdk - export JRE_HOME=${JAVA_HOME}/jre - CLASS_PATH=${JAVA_HOME}/lib:${JRE_HOME}/lib - PATH=$PATH:$JAVA_HOME/bin
如何使用,
salt ‘*‘ state.sls prod.jdk.install
[root@master01 states]# cat prod/tomcat/install.sls include: - prod.jdk tomcat-install: file.managed: - name: /usr/local/src/apache-tomcat-8.0.28.tar.gz - source: salt://prod/tomcat/files/apache-tomcat-8.0.28.tar.gz - user: root - group: root - mode: 644 cmd.run: - name: cd /usr/local/src && tar -xf apache-tomcat-8.0.28.tar.gz && ln -s apache-tomcat-8.0.28 tomcat && chown -R root:root apache-tomcat-8.0.28 - unless: test -d /usr/local/apache-tomcat-8.0.28
如何使用,
salt ‘*‘ state.sls prod.tomcat.install
这里使用源码的方式进行编译安装。安装配置的大致流程是:
1. 首先安装MySQL的依赖包;
2. 创建MySQL用户并设置UID及GID为601;
3. 开始编译安装MySQL;
4. 创建MySQL的套接字存放的目录;
5. 设置MySQL环境变量,以便在命令行直接使用MySQL相关的命令行工具;
6. 初始化MySQL数据库;
7. 设置MySQL的启动脚本;
8. 将MySQL加入开机自启动;
9. 设置MySQL安装目录的权限为mysql用户及组。
[root@master01 mysql]# cat install.sls dependency-install: pkg.installed: - names: - ncurses-devel - libaio-devel - cmake mysql: user.present: - fullname: MySQL Server - shell: /sbin/nologin - createhome: false - uid: 601 - gid: 601 mysql-install: file.managed: - name: /usr/local/src/mysql-5.5.32.tar.gz - source: salt://prod/mysql/files/mysql-5.5.32.tar.gz - user: root - group: root - mode: 644 cmd.run: - name: cd /usr/local/src && tar -xf mysql-5.5.32.tar.gz && cd mysql-5.5.32 && cmake . -DCMAKE_INSTALL_PREFIX=/application/mysql-5.5.32 -DMYSQL_DATADIR=/application/mysql-5.5.32/data -DMYSQL_UNIX_ADDR=/application/mysql-5.5.32/sock/mysql.sock -DDEFAULT_CHARSET=utf8 -DDEFAULT_COLLATION=utf8_general_ci -DEXTRA_CHARSETS=gbk,gb2312,utf8,ascii -DENABLED_LOCAL_INFILE=ON -DWITH_INNOBASE_STORAGE_ENGINE=1 -DWITH_FEDERATED_STORAGE_ENGINE=1 -DWITH_BLACKHOLE_STORAGE_ENGINE=1 -DWITHOUT_EXAMPLE_STORAGE_ENGINE=1 -DWITHOUT_PARTITION_STORAGE_ENGINE=1 -DWITH_FAST_MUTEXES=1 -DWITH_ZLIB=bundled -DENABLED_LOCAL_INFILE=1 -DWITH_READLINE=1 -DWITH_EMBEDDED_SERVER=1 -DWITH_DEBUG=0 && make && make install && ln -s /application/mysql-5.5.32 /application/mysql - unless: test -d /application/mysql-5.5.32 - require: - pkg: dependency-install - file: mysql-install /application/mysql-5.5.32/sock: file.directory: - user: mysql - group: mysql - dir_mode: 755 require: - user: mysql - cmd: mysql-install setup-mysql-env: file.append: install-mysql-db: cmd.run: - name: sh /application/mysql-5.5.32/scripts/mysql_install_db --basedir=/application/mysql-5.5.32 --datadir=/application/mysql-5.5.32/data - require: - cmd: mysql-install init-mysql: file.managed: - name: /etc/init.d/mysqld - source: /application/mysql-5.5.32/support-files/mysql.server - user: root - group: root - mode: 755 chkconfig-on-mysql: cmd.run: - name: chkconfig --add mysqld - unless: chkconfig --list | grep mysqld - require: - file: /etc/init.d/mysqld /application/mysql-5.5.32: file.directory: - user: mysql - group: mysql - dir_mode: 755 - recurse: - user - group - mode require: - user: mysql - cmd: mysql-install
如何执行呢?
salt ‘minion02.lavenliu.com‘ state.sls prod.mysql.install
这里使用YUM的方式进行安装Redis,SLS文件如下:
[root@master01 redis]# pwd /etc/salt/states/prod/redis # 目录结构为 [root@master01 redis]# tree . ├── files │ └──redis.conf └── server.sls 1 directory, 2 files
server.sls文件的内容为:
[root@master01 redis]# cat server.sls redis-server: pkg.installed: - name: redis file.managed: - name: /etc/redis.conf - source: salt://prod/redis/files/redis.conf - user: root - group: root - mode: 644 service.running: - name: redis - enable: True - reload: True - watch: - file: redis-server
redis.conf的配置文件为:
[root@master01 redis]# egrep -v "(^#|^$)" files/redis.conf daemonize yes pidfile /var/run/redis/redis.pid port 6379 bind 0.0.0.0 timeout 0 loglevel notice logfile /var/log/redis/redis.log databases 16 save 900 1 save 300 10 save 60 10000 rdbcompression yes dbfilename dump.rdb dir /var/lib/redis/ slave-serve-stale-data yes appendonly no appendfsync everysec no-appendfsync-on-rewrite no auto-aof-rewrite-percentage 100 auto-aof-rewrite-min-size 64mb slowlog-log-slower-than 10000 slowlog-max-len 1024 vm-enabled no vm-swap-file /tmp/redis.swap vm-max-memory 0 vm-page-size 32 vm-pages 134217728 vm-max-threads 4 hash-max-zipmap-entries 512 hash-max-zipmap-value 64 list-max-ziplist-entries 512 list-max-ziplist-value 64 set-max-intset-entries 512 zset-max-ziplist-entries 128 zset-max-ziplist-value 64 activerehashing yes
后续会继续更新
本文出自 “固态U盘” 博客,请务必保留此出处http://lavenliu.blog.51cto.com/5060944/1787490
原文地址:http://lavenliu.blog.51cto.com/5060944/1787490