Re: [ansible-project] How to split string twice in ansible playbook hosts section.
> On Tue, Dec 27, 2022 at 7:04 AM Know-Your-Tech wrote:
> >
> > ansible-playbook -i /web/aes/admin/playbooks/updated.hosts
> > /web/aes/admin/playbooks/split.yml -e ENV=qa -e NODE=cluster -e
> > instance_name=APP1,APP2
> >
> > Playbook:
> >
> > ---
> > - hosts: "{{ [ENV] | product(instance_name.split(',')) | product([NODE]) |
> > product(['wladmin_mmsplit'])|map('flatten')|map('join', '_') }}"
Put the logic into the inventory plugin *constructed*. See
shell> ansible-doc -t inventory ansible.builtin.constructed
In the example below, I'll use another inventory plugin *generator*
which you don't need because you obviously have another source of the
inventory. When you try the code below in your environment use this
source instead of 02-generator.yml. See
shell> ansible-doc -t inventory ansible.builtin.generator
I've ignored the case of the parameters.
1) Create the inventory
shell> tree inventory/
inventory/
├── 01-hosts
├── 02-generator.yml
└── 03-constructed.yml
shell> cat inventory/01-hosts
localhost
shell> cat inventory/02-generator.yml
plugin: ansible.builtin.generator
hosts:
name: "{{ env }}_{{ instance }}_{{ node }}_{{ ext }}"
layers:
env:
- dev
- qa
- prod
instance:
- app1
- app2
node:
- cluster1
- cluster2
ext:
- wladmin_mmsplit
shell> cat inventory/03-constructed.yml
plugin: ansible.builtin.constructed
use_extra_vars: true
compose:
layer_env: ENV.split(',')
layer_node: NODE.split(',')
layer_instance: instance_name.split(',')
groups:
my_group: inventory_hostname.split('_').0 in layer_env and
inventory_hostname.split('_').1 in layer_instance and
inventory_hostname.split('_').2 in layer_node
2) Test inventory
shell> ansible-inventory -i inventory --list --yaml
all:
children:
ungrouped:
hosts:
dev_app1_cluster1_wladmin_mmsplit: {}
dev_app1_cluster2_wladmin_mmsplit: {}
dev_app2_cluster1_wladmin_mmsplit: {}
dev_app2_cluster2_wladmin_mmsplit: {}
localhost: {}
prod_app1_cluster1_wladmin_mmsplit: {}
prod_app1_cluster2_wladmin_mmsplit: {}
prod_app2_cluster1_wladmin_mmsplit: {}
prod_app2_cluster2_wladmin_mmsplit: {}
qa_app1_cluster1_wladmin_mmsplit: {}
qa_app1_cluster2_wladmin_mmsplit: {}
qa_app2_cluster1_wladmin_mmsplit: {}
qa_app2_cluster2_wladmin_mmsplit: {}
3) Test inventory group *my_group*
shell> ansible-inventory -i inventory --list --yaml -e ENV=qa -e NODE=cluster2
-e instance_name=app1,app2
all:
children:
my_group:
hosts:
qa_app1_cluster2_wladmin_mmsplit:
ENV: qa
NODE: cluster2
instance_name: app1,app2
layer_env:
- qa
layer_instance:
- app1
- app2
layer_node:
- cluster2
qa_app2_cluster2_wladmin_mmsplit:
ENV: qa
NODE: cluster2
instance_name: app1,app2
layer_env:
- qa
layer_instance:
- app1
- app2
layer_node:
- cluster2
ungrouped:
hosts:
dev_app1_cluster1_wladmin_mmsplit:
...
4) Use *my_group* in a playbook
shell> cat pb.yml
- hosts: my_group
tasks:
- debug:
var: ansible_play_hosts_all
run_once: true
shell> ansible-playbook -i inventory -e ENV=qa -e NODE=cluster2 -e
instance_name=app1,app2 pb.yml
PLAY [my_group]
*
TASK [debug]
*
ok: [qa_app1_cluster2_wladmin_mmsplit] =>
ansible_play_hosts_all:
- qa_app1_cluster2_wladmin_mmsplit
- qa_app2_cluster2_wladmin_mmsplit
...
5) The items added to the inventory (02-generator.yml in this example)
instance:
- app1
- app2
- app3-brazil
will be automatically available for selection
shell> ansible-playbook -i inventory -e ENV=qa -e NODE=cluster2 -e
instance_name=app1,app3-brazil pb.yml
PLAY [my_group]
**
TASK [debug]
*
ok: [qa_app1_cluster2_wladmin_mmsplit] => ansible_play_hosts_all:
- qa_app1_cluster2_wladmin_mmsplit
- qa_app3-brazil_cluster2_wladmin_mmsplit
...
--
Vladimir Botka
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Re: [ansible-project] How to split string twice in ansible playbook hosts section.
On Tue, 27 Dec 2022 09:47:57 -0700 Richard Megginson wrote: > `split` is not an ansible filter Wrong. The filter *split* is available since 2.11. See https://docs.ansible.com/ansible/latest/playbook_guide/playbooks_filters.html#manipulating-strings -- Vladimir Botka -- You received this message because you are subscribed to the Google Groups "Ansible Project" group. To unsubscribe from this group and stop receiving emails from it, send an email to ansible-project+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/ansible-project/20221227192459.2011e8f0%40gmail.com. pgpiQOqAKtbmU.pgp Description: OpenPGP digital signature
Re: [ansible-project] How to split string twice in ansible playbook hosts section.
Thanks, Richard, but I was looking for a specific solution which seems to
be tricky.
On Tuesday, December 27, 2022 at 10:18:27 PM UTC+5:30 Richard Megginson
wrote:
> `split` is not an ansible filter - you cannot use it like `|
> split(something)` - you have to use as a string method which is why
> `instance_name.split(',')` works
>
> On Tue, Dec 27, 2022 at 7:04 AM Know-Your-Tech wrote:
>
>> Below is how i call my ansible-playbook and pass application names as
>> parameters APP1 & APP2
>>
>> ansible-playbook -i /web/aes/admin/playbooks/updated.hosts
>> /web/aes/admin/playbooks/split.yml -e ENV=qa -e NODE=cluster -e
>> instance_name=APP1,APP2
>>
>> Playbook:
>>
>> ---
>> - hosts: "{{ [ENV] | product(instance_name.split(',')) | product([NODE])
>> | product(['wladmin_mmsplit'])|map('flatten')|map('join', '_') }}"
>> user: wladmin
>> gather_facts: no
>>
>> I get the desired Output as below:
>>
>> PLAY [['qa_APP1_cluster_wladmin_mmsplit',
>> 'qa_APP2_cluster_wladmin_mmsplit']]
>>
>> The problem occurs when i pass the application names as
>> APP1-brazil & APP2-Chile
>>
>> and wish the same output as before.
>>
>> ansible-playbook -i /web/aes/admin/playbooks/updated.hosts
>> /web/aes/admin/playbooks/split.yml -e ENV=qa -e NODE=cluster -e
>> instance_name=APP1-brazil,APP2-Chile
>>
>> I tried the below but i get error:
>>
>> - hosts: "{{ [ENV] | product(instance_name.split(',') | split('-')[0]) |
>> product([NODE]) | product(['wladmin_mmsplit'])|map('flatten')|map('join',
>> '_') }}"
>>
>> Error in output:
>>
>> ERROR! template error while templating string: expected token ',', got
>> '['. String: {{ [ENV] | product(instance_name.split(',') | split('-')[0]) |
>> product([NODE]) | product(['wladmin_mmsplit'])|map('flatten')|map('join',
>> '_') }}
>>
>> Can you please suggest how can i address this requirement?
>>
>>
>> --
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>> "Ansible Project" group.
>> To unsubscribe from this group and stop receiving emails from it, send an
>> email to ansible-proje...@googlegroups.com.
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>>
>>
>> .
>>
>
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Re: [ansible-project] How to split string twice in ansible playbook hosts section.
`split` is not an ansible filter - you cannot use it like `|
split(something)` - you have to use as a string method which is why
`instance_name.split(',')` works
On Tue, Dec 27, 2022 at 7:04 AM Know-Your-Tech wrote:
> Below is how i call my ansible-playbook and pass application names as
> parameters APP1 & APP2
>
> ansible-playbook -i /web/aes/admin/playbooks/updated.hosts
> /web/aes/admin/playbooks/split.yml -e ENV=qa -e NODE=cluster -e
> instance_name=APP1,APP2
>
> Playbook:
>
> ---
> - hosts: "{{ [ENV] | product(instance_name.split(',')) | product([NODE]) |
> product(['wladmin_mmsplit'])|map('flatten')|map('join', '_') }}"
> user: wladmin
> gather_facts: no
>
> I get the desired Output as below:
>
> PLAY [['qa_APP1_cluster_wladmin_mmsplit',
> 'qa_APP2_cluster_wladmin_mmsplit']]
>
> The problem occurs when i pass the application names as
> APP1-brazil & APP2-Chile
>
> and wish the same output as before.
>
> ansible-playbook -i /web/aes/admin/playbooks/updated.hosts
> /web/aes/admin/playbooks/split.yml -e ENV=qa -e NODE=cluster -e
> instance_name=APP1-brazil,APP2-Chile
>
> I tried the below but i get error:
>
> - hosts: "{{ [ENV] | product(instance_name.split(',') | split('-')[0]) |
> product([NODE]) | product(['wladmin_mmsplit'])|map('flatten')|map('join',
> '_') }}"
>
> Error in output:
>
> ERROR! template error while templating string: expected token ',', got
> '['. String: {{ [ENV] | product(instance_name.split(',') | split('-')[0]) |
> product([NODE]) | product(['wladmin_mmsplit'])|map('flatten')|map('join',
> '_') }}
>
> Can you please suggest how can i address this requirement?
>
>
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>
> .
>
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[ansible-project] How to split string twice in ansible playbook hosts section.
Below is how i call my ansible-playbook and pass application names as
parameters APP1 & APP2
ansible-playbook -i /web/aes/admin/playbooks/updated.hosts
/web/aes/admin/playbooks/split.yml -e ENV=qa -e NODE=cluster -e
instance_name=APP1,APP2
Playbook:
---
- hosts: "{{ [ENV] | product(instance_name.split(',')) | product([NODE]) |
product(['wladmin_mmsplit'])|map('flatten')|map('join', '_') }}"
user: wladmin
gather_facts: no
I get the desired Output as below:
PLAY [['qa_APP1_cluster_wladmin_mmsplit',
'qa_APP2_cluster_wladmin_mmsplit']]
The problem occurs when i pass the application names as
APP1-brazil & APP2-Chile
and wish the same output as before.
ansible-playbook -i /web/aes/admin/playbooks/updated.hosts
/web/aes/admin/playbooks/split.yml -e ENV=qa -e NODE=cluster -e
instance_name=APP1-brazil,APP2-Chile
I tried the below but i get error:
- hosts: "{{ [ENV] | product(instance_name.split(',') | split('-')[0]) |
product([NODE]) | product(['wladmin_mmsplit'])|map('flatten')|map('join',
'_') }}"
Error in output:
ERROR! template error while templating string: expected token ',', got '['.
String: {{ [ENV] | product(instance_name.split(',') | split('-')[0]) |
product([NODE]) | product(['wladmin_mmsplit'])|map('flatten')|map('join',
'_') }}
Can you please suggest how can i address this requirement?
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