mirror of
https://gitea.com/mcereda/oam.git
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121 lines
4.0 KiB
YAML
121 lines
4.0 KiB
YAML
---
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- name: Show off Ansible's templating
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hosts: all
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tasks:
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# A.K.A. ternary operator.
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- name: Get back a conditional value.
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ansible.builtin.debug:
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var: "{{ 'true' if 'test me a lot' is match('test') else 'false' }}"
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# Returns ["string"] from ["", "string", 0, false].
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- name: Remove empty or false values from a list piping it to 'select()'.
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vars:
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list: ["", "string", 0, false]
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ansible.builtin.debug:
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var: list | select
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# Returns ["string", 0, false] from ["", "string", 0, false].
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- name: Remove only empty strings from a list 'reject()'ing them.
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vars:
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list: ["", "string", 0, false]
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ansible.builtin.debug:
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var: list | reject('match', '^$')
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# Returns ["a", "b", "c", "d"] from ["a", "b"] and ["c", "d"].
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- name: Merge two lists.
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vars:
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list1: ["a", "b"]
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list2: ["c", "d"]
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ansible.builtin.debug:
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var: list1 + list2
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# Returns ["a", "b"] from ["a", "b", "b", "a"].
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- name: Dedupe elements in a list.
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vars:
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list: ["a", "b", "b", "a"]
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ansible.builtin.debug:
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var: list | unique
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# Returns ['2.7.0', '2.8.0', '2.9.0',, '2.10.0' '2.11.0'] from
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# ['2.8.0', '2.11.0', '2.7.0', '2.10.0', '2.9.0']
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- name: Sort list by version number (not lexicographically).
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vars:
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list: ['2.8.0', '2.11.0', '2.7.0', '2.10.0', '2.9.0']
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ansible.builtin.debug:
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var: list | community.general.version_sort
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- name: Replace spaces with underscores in a string.
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ansible.builtin.debug:
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var: "'string with spaces' | replace(' ', '_')"
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# Returns a random string following the specifications.
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- name: Generate a random password.
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vars:
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password: "{{ lookup('password', '/dev/null length=32 chars=ascii_letters,digits,punctuation') }}"
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ansible.builtin.debug:
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var: password
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# Returns a hash of the requested type.
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# Requires the 'passlib' Python module on Darwin.
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- name: Hash a password.
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vars:
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password: abcd
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salt: "{{ lookup('community.general.random_string', special=false) }}"
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ansible.builtin.debug:
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var: password | password_hash('sha512', salt)
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- name: Get a variable's type.
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ansible.builtin.debug:
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var: "'string' | type_debug"
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- name: Show off Ansible's testing
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hosts: all
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vars:
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url: "https://example.com/users/foo/resources/bar"
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tasks:
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- name: Compare a semver version number.
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ansible.builtin.debug:
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var: "'2.0.0-rc.1+build.123' is version('2.1.0-rc.2+build.423', 'ge', version_type='semver')"
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# 'match' succeeds the pattern is **at the beginning** of the string.
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# 'search' succeeds the pattern is **anywhere** within the string.
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# 'regex' works like 'search', but can be configured to perform other
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# tests by passing the 'match_type' keyword argument.
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# 'match_type' determines the 're' method used to perform the search.
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# All of the string tests can also take the optional 'ignorecase' and
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# 'multiline' arguments.
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- name: Test a substring is present in a string.
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debug:
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msg: "{{ item }}"
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with_items:
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- "{{ url is match('https://example.com/users/.*/resources') }}"
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- "{{ url is search('users/.*/resources/.*') }}"
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- "{{ url is search('USERS', ignorecase=true) }}"
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- "{{ url is regex('example\\.com/\\w+/foo') }}"
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- name: Show off Ansible's loops
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hosts: all
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tasks:
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# See https://docs.ansible.com/ansible/latest/reference_appendices/special_variables.html
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# for the full list of special variables.
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- name: Get the values of some special variables.
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ansible.builtin.debug:
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var: "{{ item }}"
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with_items: ["ansible_local", "playbook_dir", "role_path"]
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- name: Iterate through a nested loop.
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vars:
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middles:
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- 'middle1'
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- 'middle2'
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ansible.builtin.debug:
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msg: "{{ item[0] }}, {{ item[1] }}, {{ item[2] }}"
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with_nested:
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- ['outer1', 'outer2']
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- "{{ middles }}"
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- ['inner1', 'inner2']
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