saltstack实战3--配置管理之pillar

数据系统-Pillar

pillar和grains类似，但是它能给minion指定它想要的数据，安全性较好，另外它是在master端设置的

 

应用场景：
grains的特性–每次启动汇报、静态决定了它没有pillar灵活，要知道pillar是随时可变的，只要在master端修改了那一般都会立刻生效的。

所以grains更适合做一些静态的属性值的采集，例如设备的角色(role)，磁盘个数(disk_num）等诸如此类非常固定的属性。
如果你想定义的属性值是经常变化的，那请采用pillar，如果是很固定、不易变的那请用grains。

grain和pillar区别
1.grains存储的是静态、不常变化的内容，pillar则相反
2.grains是存储在minion本地，而pillar存储在master本地
3.minion有权限操作自己的grains值，如增加、删除，但minion只能查看自己的pillar，无权修改

 

查看当前默认的pillar，其实是有的，因为用处不大，默认给关闭了

[root@master pillar]# salt '*' pillar.items
minion01:
    ----------
minion02:
    ----------
[root@master pillar]#

vim /etc/salt/master

第552行

# The pillar_opts option adds the master configuration file data to a dict in
# the pillar called "master". This is used to set simple configurations in the
# master config file that can then be used on minions.
#pillar_opts: False

取消注释，把False改成True

# The pillar_opts option adds the master configuration file data to a dict in
# the pillar called "master". This is used to set simple configurations in the
# master config file that can then be used on minions.
pillar_opts: True

重启master服务

[root@master pillar]# /etc/init.d/salt-master restart
Stopping salt-master daemon:                               [  OK  ]
Starting salt-master daemon:                               [  OK  ]
[root@master pillar]#

查看默认的pillar信息

[root@master pillar]# salt 'minion01' pillar.items
minion01:
    ----------
    master:
        ----------
        __role:
            master
        auth_mode:
            1
        auto_accept:
            False
        cache_sreqs:
            True
        cachedir:
            /var/cache/salt/master
        cli_summary:
            False
        client_acl:
            ----------
        client_acl_blacklist:
            ----------
        cluster_masters:
        cluster_mode:
            paranoid
        con_cache:
            False
        conf_file:
            /etc/salt/master
        config_dir:
            /etc/salt
        cython_enable:
            False
        daemon:
            True
        default_include:
            master.d/*.conf
        enable_gpu_grains:
            False
        enforce_mine_cache:
            False
        enumerate_proxy_minions:
            False
        environment:
            None
        event_return:
        event_return_blacklist:
        event_return_queue:
            0
        event_return_whitelist:
        ext_job_cache:
        ext_pillar:
        extension_modules:
            /var/cache/salt/extmods
        external_auth:
            ----------
        failhard:
            False
        file_buffer_size:
            1048576
        file_client:
            local
        file_ignore_glob:
            None
        file_ignore_regex:
            None
        file_recv:
            False
        file_recv_max_size:
            100
        file_roots:
            ----------
            base:
                - /srv/salt
        fileserver_backend:
            - roots
        fileserver_followsymlinks:
            True
        fileserver_ignoresymlinks:
            False
        fileserver_limit_traversal:
            False
        gather_job_timeout:
            10
        gitfs_base:
            master
        gitfs_env_blacklist:
        gitfs_env_whitelist:
        gitfs_insecure_auth:
            False
        gitfs_mountpoint:
        gitfs_passphrase:
        gitfs_password:
        gitfs_privkey:
        gitfs_pubkey:
        gitfs_remotes:
        gitfs_root:
        gitfs_user:
        hash_type:
            md5
        hgfs_base:
            default
        hgfs_branch_method:
            branches
        hgfs_env_blacklist:
        hgfs_env_whitelist:
        hgfs_mountpoint:
        hgfs_remotes:
        hgfs_root:
        id:
            minion01
        interface:
            0.0.0.0
        ioflo_console_logdir:
        ioflo_period:
            0.01
        ioflo_realtime:
            True
        ioflo_verbose:
            0
        ipv6:
            False
        jinja_lstrip_blocks:
            False
        jinja_trim_blocks:
            False
        job_cache:
            True
        keep_jobs:
            24
        key_logfile:
            /var/log/salt/key
        keysize:
            2048
        log_datefmt:
            %H:%M:%S
        log_datefmt_logfile:
            %Y-%m-%d %H:%M:%S
        log_file:
            /var/log/salt/master
        log_fmt_console:
            [%(levelname)-8s] %(message)s
        log_fmt_logfile:
            %(asctime)s,%(msecs)03.0f [%(name)-17s][%(levelname)-8s][%(process)d] %(message)s
        log_granular_levels:
            ----------
        log_level:
            debug
        loop_interval:
            60
        maintenance_floscript:
            /usr/lib/python2.6/site-packages/salt/daemons/flo/maint.flo
        master_floscript:
            /usr/lib/python2.6/site-packages/salt/daemons/flo/master.flo
        master_job_cache:
            local_cache
        master_pubkey_signature:
            master_pubkey_signature
        master_roots:
            ----------
            base:
                - /srv/salt-master
        master_sign_key_name:
            master_sign
        master_sign_pubkey:
            False
        master_tops:
            ----------
        master_use_pubkey_signature:
            False
        max_event_size:
            1048576
        max_minions:
            0
        max_open_files:
            100000
        minion_data_cache:
            True
        minionfs_blacklist:
        minionfs_env:
            base
        minionfs_mountpoint:
        minionfs_whitelist:
        nodegroups:
            ----------
            lamp:
                L@minion01,minion02
            lnmp:
                minion02
        open_mode:
            False
        order_masters:
            False
        outputter_dirs:
        peer:
            ----------
        permissive_pki_access:
            False
        pidfile:
            /var/run/salt-master.pid
        pillar_opts:
            True
        pillar_roots:
            ----------
            base:
                - /srv/pillar
        pillar_safe_render_error:
            True
        pillar_source_merging_strategy:
            smart
        pillar_version:
            2
        pillarenv:
            None
        ping_on_rotate:
            False
        pki_dir:
            /etc/salt/pki/master
        preserve_minion_cache:
            False
        pub_hwm:
            1000
        publish_port:
            4505
        publish_session:
            86400
        queue_dirs:
        raet_alt_port:
            4511
        raet_clear_remotes:
            False
        raet_main:
            True
        raet_mutable:
            False
        raet_port:
            4506
        range_server:
            range:80
        reactor:
        reactor_refresh_interval:
            60
        reactor_worker_hwm:
            10000
        reactor_worker_threads:
            10
        renderer:
            yaml_jinja
        ret_port:
            4506
        root_dir:
            /
        rotate_aes_key:
            True
        runner_dirs:
        saltversion:
            2015.5.10
        search:
        search_index_interval:
            3600
        serial:
            msgpack
        show_jid:
            False
        show_timeout:
            True
        sign_pub_messages:
            False
        sock_dir:
            /var/run/salt/master
        sqlite_queue_dir:
            /var/cache/salt/master/queues
        ssh_passwd:
        ssh_port:
            22
        ssh_scan_ports:
            22
        ssh_scan_timeout:
            0.01
        ssh_sudo:
            False
        ssh_timeout:
            60
        ssh_user:
            root
        state_aggregate:
            False
        state_auto_order:
            True
        state_events:
            False
        state_output:
            full
        state_top:
            salt://top.sls
        state_top_saltenv:
            None
        state_verbose:
            True
        sudo_acl:
            False
        svnfs_branches:
            branches
        svnfs_env_blacklist:
        svnfs_env_whitelist:
        svnfs_mountpoint:
        svnfs_remotes:
        svnfs_root:
        svnfs_tags:
            tags
        svnfs_trunk:
            trunk
        syndic_dir:
            /var/cache/salt/master/syndics
        syndic_event_forward_timeout:
            0.5
        syndic_jid_forward_cache_hwm:
            100
        syndic_master:
        syndic_max_event_process_time:
            0.5
        syndic_wait:
            5
        timeout:
            5
        token_dir:
            /var/cache/salt/master/tokens
        token_expire:
            43200
        transport:
            zeromq
        user:
            root
        verify_env:
            True
        win_gitrepos:
            - https://github.com/saltstack/salt-winrepo.git
        win_repo:
            /srv/salt/win/repo
        win_repo_mastercachefile:
            /srv/salt/win/repo/winrepo.p
        worker_floscript:
            /usr/lib/python2.6/site-packages/salt/daemons/flo/worker.flo
        worker_threads:
            5
        zmq_filtering:
            False
[root@master pillar]#

用处不大，关闭即可

自定义pillar信息，pillar也有自己的file_root

vim /etc/salt/master

找到529行，取消这3行的注释

#####         Pillar settings        #####
##########################################
# Salt Pillars allow for the building of global data that can be made selectively
# available to different minions based on minion grain filtering. The Salt
# Pillar is laid out in the same fashion as the file server, with environments,
# a top file and sls files. However, pillar data does not need to be in the
# highstate format, and is generally just key/value pairs.
pillar_roots:
  base:
    - /srv/pillar

　重启服务，创建目录

[root@master pillar]# vim /etc/salt/master
[root@master pillar]# /etc/init.d/salt-master restart
Stopping salt-master daemon:                               [  OK  ]
Starting salt-master daemon:                               [  OK  ]
[root@master pillar]# mkdir /srv/pillar  -p
[root@master pillar]#

另外pillar也有top file

这个top.sls也可以改名，比如改为hehe.sls

但是这个文件必须放在pillar的base目录下

pillar和grains的base目录是两回事不要弄混了，它们都有自己的base目录

自定义一些pillar信息

结合jinja语法和grains信息，jinja语法是一种语法格式，具体的可以查看jinja语法这篇笔记，难度不大，容易懂

操作如下，另外它也有自己的top.sls入口文件，在自己的base目录下

[root@master ~]# salt '*' pillar.items
minion02:
    ----------
minion01:
    ----------
[root@master ~]# cd /srv/pillar/
[root@master pillar]# ls
packages.sls  top.sls
[root@master pillar]# cat packages.sls
{% if grains['os'] == 'CentOS' %}
apache: httpd
git: git
{% elif grains['os'] == 'Debian' %}
apache: apache2
git: git-core
{% endif %}
[root@master pillar]# cat top.sls
base:
  minion02:
    - packages
[root@master pillar]#

上面我们设置了，给centos系统设置pillar信息

让apache的显示httpd

git显示git

然后通过top.sls只给minion02执行这个pillar信息

[root@master pillar]# salt '*' pillar.items
minion01:
    ----------
minion02:
    ----------
    apache:
        httpd
    git:
        git
[root@master pillar]#

　修改下文件，这样下次管理很多minion的时候，安装包时，就可以根据不同系统执行不同的安装操作了

[root@master pillar]# cat packages.sls
{% if grains['os'] == 'CentOS' %}
apache: httpd
{% elif grains['os'] == 'Debian' %}
apache: apache2
{% endif %}
[root@master pillar]# cat top.sls
base:
  '*':
    - packages
[root@master pillar]# salt '*' pillar.items
minion02:
    ----------
    apache:
        httpd
minion01:
    ----------
    apache:
        httpd
[root@master pillar]#

还可以通过pillar信息，然后在命令行远程执行test.ping找出哪些机器是centos系统的

看到下面minion01是不是无响应，是因为pillar信息是在master上定义的，所以上面执行pillar.items能显示就是因为信息在master上，但是没有刷新到minion上呢

[root@master pillar]# salt -I 'apache:httpd' test.ping
minion02:
    True
minion01:
    Minion did not return. [No response]
[root@master pillar]#

所以每次定义完pillar信息，需要先刷新到minion上，再执行命令

如下刷新方法

[root@master pillar]# salt  '*'  saltutil.refresh_pillar
minion02:
    True
minion01:
    True
[root@master pillar]# salt -I 'apache:httpd' test.ping
minion02:
    True
minion01:
    True
[root@master pillar]#