70 lines
2.6 KiB
YAML
70 lines
2.6 KiB
YAML
# This is the default ansible 'hosts' file.
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#
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# It should live in /etc/ansible/hosts
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#
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# - Comments begin with the '#' character
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# - Blank lines are ignored
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# - Top level entries are assumed to be groups, start with 'all' to have a full hierarchy
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# - Hosts must be specified in a group's hosts:
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# and they must be a key (: terminated)
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# - groups can have children, hosts and vars keys
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# - groups are unique and global - if you define a group in multiple locations, Ansible aggregates all the data to the global name.
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# - If you define a group as a child of 2 different groups, it will be the child of both, any hosts and variables assigned will not be dependent on the parents, they will all be associated with the group.
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# - Anything defined under a host is assumed to be a var
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# - You can enter hostnames or IP addresses
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# - A hostname/IP can be a member of multiple groups
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# Ex 1: Ungrouped hosts, put them in 'all' or 'ungrouped' group, defines 4 hosts, one with 2 variables
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##all:
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## hosts:
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## green.example.com:
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## ansible_ssh_host: 191.168.100.32
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## anyvariable: value
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## blue.example.com:
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## 192.168.100.1:
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## 192.168.100.10:
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# Ex 2: A collection of hosts belonging to the 'webservers' group, with shared group var
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##webservers:
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## hosts:
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## alpha.example.org:
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## beta.example.org:
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## 192.168.1.100:
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## 192.168.1.110:
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## vars:
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## http_port: 8080
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# Ex 3: You can create hosts using ranges and add children groups and vars to a group
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# The child group can define anything you would normally add to a group.
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# Hosts in child groups inherit all variables from parent, parents include all hosts in child groups.
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# webservers is added as a child group of testing, so all gamma hosts (1-3) are added
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# to the 'webservers' group, including gamma3, which is defined in the tree of another parent group.
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# All references to webservers will get any hosts defined under webservers.
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# References to testing will get all of those hosts plus any host matching www[001:006].example.com
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##webservers:
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## hosts:
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## gamma1.example.org:
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## gamma2.example.org:
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##testing:
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## hosts:
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## www[001:006].example.com:
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## vars:
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## testing1: value1
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## children:
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## webservers:
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##other:
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## children:
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## webservers:
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## gamma3.example.org
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# From above, the testing group contains: gamma1.example.org gamma2.example.org gamma3.example.org www001.example.com www002.example.com www003.example.com www004.example.com www005.example.com www006.example.com
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# Ex 4: all vars
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# keeping within 'all' group you can define common 'all' vars here with lowest precedence
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##all:
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## vars:
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## commontoall: thisvar
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