The default is 0, which means all hosts. If set to 1, each host would run a playbook all the way through before moving
on the next host. Fact gathering is still parallel, regardless of the serial setting.
to an additional pattern (a subset) specified on the command line. For instance, a playbook could be reusable
and target "webservers" and "dbservers", but you want to test only in the stage environment, or a few boxes at a time.
./group_vars/groupname.yml (for all groups the host is in)
./host_vars/hostname.yml (for the hostname given in the inventory)
This requires an actual inventory file, not script and the paths are relative
to the directory of the inventory file.
commit 4430ce3eefcdff0b0ceffea0ef66ea8e876a807d
Merge: 631783b 649963c
Author: Michael DeHaan <michael.dehaan@gmail.com>
Date: Thu Jul 12 01:28:43 2012 -0400
Merge branch 'host-groups' of https://github.com/dagwieers/ansible into daggroups
commit 649963ca2c2610b97a90d2449132a57ae6b39ec9
Author: Dag Wieërs <dag@wieers.com>
Date: Thu Jul 12 23:01:00 2012 +0200
Added comments in the example yaml file as requested
commit 7f9718f185ec991bc165c4a52b2468cf41f4c349
Author: Dag Wieërs <dag@wieers.com>
Date: Thu Jul 12 22:49:38 2012 +0200
Add the default nose color too, to test specific overrides
commit eb63b9e899318ce0c26902ca73af50135a6224e4
Author: Dag Wieërs <dag@wieers.com>
Date: Thu Jul 12 22:44:35 2012 +0200
Introduce comics and cartoons to test yaml groups defined on a per-node basis
commit aa13d233078b825a8057bebf35ed478342cf4e43
Author: Dag Wieërs <dag@wieers.com>
Date: Thu Jul 12 19:33:15 2012 +0200
A small fix to revert to old state
commit 264ebaa77c4243f2e9117e8d1168dc2f2eed7ee2
Author: Dag Wieërs <dag@wieers.com>
Date: Thu Jul 12 19:31:51 2012 +0200
Combine both yaml unit tests into one example file
commit 7db49a8048e78402c4c9a0a6cb2604689280fbbb
Author: Dag Wieërs <dag@wieers.com>
Date: Thu Jul 12 16:46:53 2012 +0200
Might as well fix this too
commit f36c6c8c5b419865939c7e2b0b26f6c97255fdc8
Author: Dag Wieërs <dag@wieers.com>
Date: Thu Jul 12 16:42:00 2012 +0200
Added unit tests for host-groups patch
For the unit test I chose to keep the original yaml file in place as a reference.
This patch also includes a fix.
commit a96f6813522c5ae8b2be4514a2de56a775c6b7b0
Author: Dag Wieërs <dag@wieers.com>
Date: Thu Jul 12 12:30:43 2012 +0200
Allow groups to be defined on a per-host basis
This makes it possible to define on a per-host basis what groups a host is in.
When managing a large set of systems it makes it easier to ensure each of the
systems is defined in a set of groups (e.g. production/qa/development,
linux/solaris/aix) rather than having to add systems to multiple disconnected
groups.
----
- host: system01
- host: system02
- host: system03
- group: linux
hosts:
- system01
- system02
- group: solaris
hosts:
- system03
- group: production
hosts:
- system01
- system03
- group: qa
- system02
- group: dbserver
hosts:
- system01
- group: ntpserver
hosts:
- system02
- group: webserver
- system03
----
Can be redefined as:
----
- host: system01
groups: [ linux, production, dbserver ]
- host: system02
groups: [ linux, qa, ntpserver ]
- host: system03
groups: [ solaris, production, webserver ]
----
get_hosts() was treating [] (meaning complete restriction, no hosts allowed)
the same as None (meaning no restriction, all hosts allowed). Fixed logic.
