puppet学习

1.脚本默认写在/etc/puppetlabs/code/environments/production/manifests/下，命名方式为xx.pp。执行脚本只有写在/etc/puppetlabs/code/environments/production/manifests中才能自动同步，写在别处的不能自动同步。

vim site.pp
$puppetmaster = 'kubernetes-dev-worker-6'
class textfile{
        file{
                "/media/helloa.txt":
                content=>"111Hello!This echo Hello\n";
        }
}
node default{
        include textfile
}

执行脚本

puppet apply -v site.pp

2.agent分组

常用方式有两种， Facter和Hiera。

Facter会随着 Puppet Agent 的安装自动安装，分组配置需要写在每个Agent上的/etc/puppetlabs/facter/facter.conf，如添加以下内容，将 group 设置为适当的组名

facts : {
  group : "k8s"
}

Hiera需要单独安装，只需要在puppet server安装，首先需要添加yum源，在/etc/yum.repos.d/puppet8-release.repo中添加

[puppetlabs-products]
name=Puppet Labs Products - $basearch
baseurl=https://yum.puppetlabs.com/el/7/products/$basearch
#gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-puppetlabs
enabled=1
gpgcheck=0

[puppetlabs-deps]
name=Puppet Labs Dependencies - $basearch
baseurl=https://yum.puppetlabs.com/el/7/dependencies/$basearch
#gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-puppetlabs
enabled=1
gpgcheck=0

yum安装Hiera

yum install hiera

在/etc/puppetlabs/code/environments/production/data/nodes.yaml中写分组配置

---
'10.12.20.10-10.12.20.20':
  group: 'k8s'
  software: 'tomcat'

'10.12.20.21-10.12.20.30':
  group: 'jenkins'
  software: 'nginx'

在 site.pp 文件中使用 Hiera 查询来获取节点的分组信息并根据需要安装软件。示例代码如下：

$group = hiera('group', $::ipaddress)

if $group == 'k8s' {
  package { 'tomcat':
    ensure => latest,
  }
}

if $group == 'jenkins' {
  package { 'nginx':
    ensure => latest,
  }
}