Ansible - Revision history

Leo at 23:24, 24 January 2023

2023-01-24T23:24:02Z

← Older revision		Revision as of 23:24, 24 January 2023
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	}}		}}
	Doing this, we can use <code>fileserver_index</code>, which contains a value between 0 through 9.		Doing this, we can use <code>fileserver_index</code>, which contains a value between 0 through 9.

			==== Lookup a DNS name ====
			You can use lookup to call dig and lookup a A record. For example:
			{{Highlight
			\| code = # ansible localhost -m debug -a "msg=<nowiki>{{ lookup('dig', 'nas') }}</nowiki>"
			\| lang = terminal
			}}

	==Tasks==		==Tasks==

2022-01-02T01:03:19Z

← Older revision		Revision as of 01:03, 2 January 2022
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	Host ranges can be specified with brackets, such as <code>[01:10]</code> to denote nodes from 01 (with a leading 0) through 10.		Host ranges can be specified with brackets, such as <code>[01:10]</code> to denote nodes from 01 (with a leading 0) through 10.

			===== Variable overrides =====
			You can override specific variables in the inventory file. In the example above, the web servers have their user, host, and ports overridden so that Ansible will connect to these hosts using the specified host and ports. Other variables that you might be interested are:
			{\| class="wikitable"
			!Description
			!Variables
			\|-
			\|Override the host's address. Connect to this address rather than the relying on the hostname.
			\|<code>ansible_host=10.1.2.6</code>
			\|-
			\|Override the default SSH port
			\|<code>ansible_port=2222</code>
			\|-
			\|SSH as this user when connecting to the host (rather than root)
			\|<code>ansible_user=opc</code>
			\|-
			\|Use this identity file (rather than the default in ~/.ssh/id_rsa)
			\|<code>ansible_ssh_private_key_file=/path/to/your/.ssh/id_rsa</code>
			\|-
			\|Become root using sudo (used if your ansible_user isn't root)
			\|<code>ansible_become=yes</code>
			\|-
			\|Override the python interpreter on the host.
			\|<code>ansible_python_interpreter=/usr/local/bin/python</code>
			\|}

	====Variables====		====Variables====

2021-12-30T00:59:25Z

Added categories and navbox

← Older revision		Revision as of 00:59, 30 December 2021
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	*https://github.com/rug-cit-hpc/league-of-robots/tree/5b6fd04c8ea76646bdf04956dd826c3b1ae38553		*https://github.com/rug-cit-hpc/league-of-robots/tree/5b6fd04c8ea76646bdf04956dd826c3b1ae38553
			{{Navbox Linux}}
			[[Category:Linux]]
			[[Category:LinuxUtilities]]

2021-12-19T07:11:29Z

Modules & Tasks

← Older revision		Revision as of 07:11, 19 December 2021
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	*stopped		*stopped
	\|-		\|-
	\|user		\|[https://docs.ansible.com/ansible/latest/collections/ansible/builtin/user_module.html user]
	\|{{Highlight		\|{{Highlight
	\| code = - title: Create a new user		\| code = - title: Create a new user
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	\|		\|
	\|-		\|-
	\|group		\|[https://docs.ansible.com/ansible/latest/collections/ansible/builtin/group_module.html group]
	\|{{Highlight		\|{{Highlight
	\| code = - title: Create a new group		\| code = - title: Create a new group
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	\|		\|
	\|-		\|-
	\|authorized_key		\|[https://docs.ansible.com/ansible/latest/collections/ansible/posix/authorized_key_module.html#ansible-collections-ansible-posix-authorized-key-module authorized_key]
	\|{{Highlight		\|{{Highlight
	\| code = - name: Set an authorized key		\| code = - name: Set an authorized key

2021-12-19T07:10:15Z

Modules & Tasks

@@ Line 263: / Line 263: @@
 *started
 *stopped
 |}

2021-11-01T16:55:55Z

@@ Line 432: / Line 432: @@
 | lang = terminal
 }}
 You can determine if the environment is a VM or container by reading the value set under <code>ansible_virtualization_type</code>.
@@ Line 618: / Line 650: @@
 Doing this, we can use <code>fileserver_index</code>, which contains a value between 0 through 9.
-== Tasks ==
+==Tasks==
-=== Disable SELinux ===
+===Disable SELinux===
 {{Highlight
 | code = - name: Disable SELinux

2021-08-09T18:29:30Z

Loops

← Older revision		Revision as of 18:29, 9 August 2021
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	- name: Open firewall for Apache		- name: Open firewall for Apache
	firewalld:		firewalld:
	service: "{{ item }}"		service: "<nowiki>{{ item }}</nowiki>"
	permanent: yes		permanent: yes
	state: enabled		state: enabled

2021-07-21T17:48:27Z

Troubleshooting

← Older revision		Revision as of 17:48, 21 July 2021
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	*We use 10 jobs in parallel (up from the default of 5)		*We use 10 jobs in parallel (up from the default of 5)

	=== Formatting ===		===Formatting===
	Tasks with conditions can be written out over newlines. Just use the yaml <code>></code> operator.		Tasks with conditions can be written out over newlines. Just use the yaml <code>></code> operator.
	{{Highlight		{{Highlight
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	}}		}}
	Doing this, we can use <code>fileserver_index</code>, which contains a value between 0 through 9.		Doing this, we can use <code>fileserver_index</code>, which contains a value between 0 through 9.

			== Tasks ==

			=== Disable SELinux ===
			{{Highlight
			\| code = - name: Disable SELinux
			selinux: state=disabled
			\| lang = text
			}}

	==Troubleshooting==		==Troubleshooting==

2021-07-15T19:58:27Z

Tips & Tricks

@@ Line 518: / Line 518: @@
 *Using the <code>shell</code> module, we run <code>yum -y update sudo</code>
 *We use 10 jobs in parallel (up from the default of 5)
 ===Jinja===

2021-03-22T21:09:31Z

Modules & Tasks

← Older revision		Revision as of 21:09, 22 March 2021
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	- name: Do something with file list		- name: Do something with file list
	file:		file:
	path: "{{ item.path }}"		path: "<nowiki>{{ item.path }}</nowiki>"
	state: absent		state: absent
	with_items: "{{ list_of_files.files }}"		with_items: "<nowiki>{{ list_of_files.files }}</nowiki>"
	\| lang = yaml		\| lang = yaml
	}}		}}