如何根据 set_facts 将多个 ansible 条件合并为一个
How to Club multiple ansible condition into one based on the set_facts
在研究 中的一个 ansible
食谱时,我发现它很有趣,同时使用 set_fact
进行不同的条件检查。然而,我根据我的方法回答了 post 但是,我仍然看到可以改进俱乐部的多个条件来完成类似的任务,比如确定 location
resource group
和 vnet
.
下面是 playbook
和变量文件 azure_vars.yml
播放
---
- name: create azure vm
hosts: localhost
connection: local
tasks:
- include_vars: azure_vars.yml
- set_fact:
host: "{{ azure_vm_name.split('.') }}"
- set_fact:
domain: "{{ host.1 }}.{{ host.2 }}"
- name: Domain
debug:
msg: "{{ domain }}"
- set_fact:
location: "{{ azure_location[0] }}"
when: 'domain == azure_domain[0]'
- set_fact:
location: "{{ azure_location[1] }}"
when: 'domain == azure_domain[1]'
- set_fact:
location: "{{ azure_location[2] }}"
when: 'domain == azure_domain[2]'
- name: Location
debug:
msg: "{{ location }}"
- set_fact:
res_group: "{{ azure_res_group[0] }}"
when: 'domain == azure_domain[0]'
- set_fact:
res_group: "{{ azure_res_group[1] }}"
when: 'domain == azure_domain[1]'
- set_fact:
res_group: "{{ azure_res_group[2] }}"
when: 'domain == azure_domain[2]'
- name: Resource Group
debug:
msg: "{{ res_group }}"
- set_fact:
vnet: "{{ azure_nprod_vnet }}"
when: 'domain == azure_domain[0]'
- set_fact:
vnet: "{{ azure_prod03_vnet }}"
when: 'domain == azure_domain[2]'
- set_fact:
vnet: "{{ azure_prod02_vnet }}"
when: 'domain == azure_domain[1]'
- name: Vnet
debug:
msg: "{{ vnet }}"
可变文件
此文件包含所有变量,这些变量将成为 playbook
的一部分并在任务部分下作为 include_vars
导入。
$ cat azure_vars.yml
---
azure_nprod_vnet: "/subscriptions/XXXXXXXX-XXX-XXXX-XXXX-XXXXXXXXXXXX/resourceGroups/rg001/providers/Microsoft.Network/virtualNetworks/vnet"
azure_prod02_vnet: "/subscriptions/XXXXXXXX-XXX-XXXX-XXXX-XXXXXXXXXXXX/resourceGroups/rg003/providers/Microsoft.Network/virtualNetworks/vnet"
azure_prod03_vnet: "/subscriptions/XXXXXXXX-XXX-XXXX-XXXX-XXXXXXXXXXXX/resourceGroups/rg002/providers/Microsoft.Network/virtualNetworks/vnet"
# Azure domain
azure_domains:
- us-sea01
- us-azrc2
- eu-azrc1
# Resource group
azure_res_group:
- rg001
- rg002
- rg003
# Azure locations
azure_location:
- westus2
- southcentralus
- westeurope
...
预计俱乐部三成以下条件:
- set_fact:
location: "{{ azure_location[0] }}"
when: 'domain == azure_domain[0]'
- set_fact:
location: "{{ azure_location[1] }}"
when: 'domain == azure_domain[1]'
- set_fact:
location: "{{ azure_location[2] }}"
when: 'domain == azure_domain[2]'
可能是这样的:
- set_fact:
location:
- azure_location[0]
- azure_location[1]
- azure_location[2]
when:
- 'domain == azure_domain[0]
- 'domain == azure_domain[1]
- 'domain == azure_domain[2]
您可以使用 loop
and zip
filter, or in the older fashion way, with a with_together
解决此问题 — 如果您想 future-proof 您的剧本,不再推荐。
鉴于剧本:
- hosts: all
vars:
azure_vm_name: foo.bar.us-sea01.whatever.example.org
tasks:
- include_vars: azure_vars.yml
- set_fact:
host: "{{ azure_vm_name.split('.') }}"
- set_fact:
domain: "{{ host.2 }}"
- name: Domain
debug:
msg: "{{ domain }}"
- set_fact:
location: "{{ item.1 }}"
loop: "{{ azure_domains | zip(azure_location) | list }}"
when: 'domain == item.0'
- name: Location
debug:
msg: "{{ location }}"
和变量文件azure_vars.yml:
azure_domains:
- us-sea01
- us-azrc2
- eu-azrc1
azure_location:
- westus2
- southcentralus
- westeurope
这产生了回顾:
PLAY [all] *******************************************************************************************************
TASK [Gathering Facts] *******************************************************************************************
ok: [localhost]
TASK [include_vars] **********************************************************************************************
ok: [localhost]
TASK [set_fact] **************************************************************************************************
ok: [localhost]
TASK [set_fact] **************************************************************************************************
ok: [localhost]
TASK [Domain] ****************************************************************************************************
ok: [localhost] => {
"msg": "us-sea01"
}
TASK [set_fact] **************************************************************************************************
ok: [localhost] => (item=['us-sea01', 'westus2'])
skipping: [localhost] => (item=['us-azrc2', 'southcentralus'])
skipping: [localhost] => (item=['eu-azrc1', 'westeurope'])
TASK [Location] **************************************************************************************************
ok: [localhost] => {
"msg": "westus2"
}
PLAY RECAP *******************************************************************************************************
localhost : ok=7 changed=0 unreachable=0 failed=0 skipped=0 rescued=0 ignored=0
这表示还有另一种可能性,使用 Python 的 Ansible 功能。您可以使用列表的 index()
方法将 azure_location
的元素定位为与 azure_domains
.
中的 domain
处于相同位置的元素
例如如果 domain
位于 azure_domains
的位置 2
,您将在 azure_location
.
中获得位置 2
的元素
鉴于剧本:
- hosts: all
vars:
azure_vm_name: foo.bar.us-sea01.whatever.example.org
tasks:
- include_vars: azure_vars.yml
- set_fact:
host: "{{ azure_vm_name.split('.') }}"
- set_fact:
domain: "{{ host.2 }}"
- name: Domain
debug:
msg: "{{ domain }}"
- set_fact:
location: "{{ azure_location[azure_domains.index(domain)] }}"
- name: Location
debug:
msg: "{{ location }}"
和相同的变量文件azure_vars.yml,这产生了回顾:
PLAY [all] ******************************************************************************************************************
TASK [Gathering Facts] ******************************************************************************************************
ok: [localhost]
TASK [include_vars] *********************************************************************************************************
ok: [localhost]
TASK [set_fact] *************************************************************************************************************
ok: [localhost]
TASK [set_fact] *************************************************************************************************************
ok: [localhost]
TASK [Domain] ***************************************************************************************************************
ok: [localhost] => {
"msg": "us-sea01"
}
TASK [set_fact] *************************************************************************************************************
ok: [localhost]
TASK [Location] *************************************************************************************************************
ok: [localhost] => {
"msg": "westus2"
}
PLAY RECAP ******************************************************************************************************************
localhost : ok=7 changed=0 unreachable=0 failed=0 skipped=0 rescued=0 ignored=0
其中没有使用循环,因此更容易回顾。
在研究 ansible
食谱时,我发现它很有趣,同时使用 set_fact
进行不同的条件检查。然而,我根据我的方法回答了 post 但是,我仍然看到可以改进俱乐部的多个条件来完成类似的任务,比如确定 location
resource group
和 vnet
.
下面是 playbook
和变量文件 azure_vars.yml
播放
---
- name: create azure vm
hosts: localhost
connection: local
tasks:
- include_vars: azure_vars.yml
- set_fact:
host: "{{ azure_vm_name.split('.') }}"
- set_fact:
domain: "{{ host.1 }}.{{ host.2 }}"
- name: Domain
debug:
msg: "{{ domain }}"
- set_fact:
location: "{{ azure_location[0] }}"
when: 'domain == azure_domain[0]'
- set_fact:
location: "{{ azure_location[1] }}"
when: 'domain == azure_domain[1]'
- set_fact:
location: "{{ azure_location[2] }}"
when: 'domain == azure_domain[2]'
- name: Location
debug:
msg: "{{ location }}"
- set_fact:
res_group: "{{ azure_res_group[0] }}"
when: 'domain == azure_domain[0]'
- set_fact:
res_group: "{{ azure_res_group[1] }}"
when: 'domain == azure_domain[1]'
- set_fact:
res_group: "{{ azure_res_group[2] }}"
when: 'domain == azure_domain[2]'
- name: Resource Group
debug:
msg: "{{ res_group }}"
- set_fact:
vnet: "{{ azure_nprod_vnet }}"
when: 'domain == azure_domain[0]'
- set_fact:
vnet: "{{ azure_prod03_vnet }}"
when: 'domain == azure_domain[2]'
- set_fact:
vnet: "{{ azure_prod02_vnet }}"
when: 'domain == azure_domain[1]'
- name: Vnet
debug:
msg: "{{ vnet }}"
可变文件
此文件包含所有变量,这些变量将成为 playbook
的一部分并在任务部分下作为 include_vars
导入。
$ cat azure_vars.yml
---
azure_nprod_vnet: "/subscriptions/XXXXXXXX-XXX-XXXX-XXXX-XXXXXXXXXXXX/resourceGroups/rg001/providers/Microsoft.Network/virtualNetworks/vnet"
azure_prod02_vnet: "/subscriptions/XXXXXXXX-XXX-XXXX-XXXX-XXXXXXXXXXXX/resourceGroups/rg003/providers/Microsoft.Network/virtualNetworks/vnet"
azure_prod03_vnet: "/subscriptions/XXXXXXXX-XXX-XXXX-XXXX-XXXXXXXXXXXX/resourceGroups/rg002/providers/Microsoft.Network/virtualNetworks/vnet"
# Azure domain
azure_domains:
- us-sea01
- us-azrc2
- eu-azrc1
# Resource group
azure_res_group:
- rg001
- rg002
- rg003
# Azure locations
azure_location:
- westus2
- southcentralus
- westeurope
...
预计俱乐部三成以下条件:
- set_fact:
location: "{{ azure_location[0] }}"
when: 'domain == azure_domain[0]'
- set_fact:
location: "{{ azure_location[1] }}"
when: 'domain == azure_domain[1]'
- set_fact:
location: "{{ azure_location[2] }}"
when: 'domain == azure_domain[2]'
可能是这样的:
- set_fact:
location:
- azure_location[0]
- azure_location[1]
- azure_location[2]
when:
- 'domain == azure_domain[0]
- 'domain == azure_domain[1]
- 'domain == azure_domain[2]
您可以使用 loop
and zip
filter, or in the older fashion way, with a with_together
解决此问题 — 如果您想 future-proof 您的剧本,不再推荐。
鉴于剧本:
- hosts: all
vars:
azure_vm_name: foo.bar.us-sea01.whatever.example.org
tasks:
- include_vars: azure_vars.yml
- set_fact:
host: "{{ azure_vm_name.split('.') }}"
- set_fact:
domain: "{{ host.2 }}"
- name: Domain
debug:
msg: "{{ domain }}"
- set_fact:
location: "{{ item.1 }}"
loop: "{{ azure_domains | zip(azure_location) | list }}"
when: 'domain == item.0'
- name: Location
debug:
msg: "{{ location }}"
和变量文件azure_vars.yml:
azure_domains:
- us-sea01
- us-azrc2
- eu-azrc1
azure_location:
- westus2
- southcentralus
- westeurope
这产生了回顾:
PLAY [all] *******************************************************************************************************
TASK [Gathering Facts] *******************************************************************************************
ok: [localhost]
TASK [include_vars] **********************************************************************************************
ok: [localhost]
TASK [set_fact] **************************************************************************************************
ok: [localhost]
TASK [set_fact] **************************************************************************************************
ok: [localhost]
TASK [Domain] ****************************************************************************************************
ok: [localhost] => {
"msg": "us-sea01"
}
TASK [set_fact] **************************************************************************************************
ok: [localhost] => (item=['us-sea01', 'westus2'])
skipping: [localhost] => (item=['us-azrc2', 'southcentralus'])
skipping: [localhost] => (item=['eu-azrc1', 'westeurope'])
TASK [Location] **************************************************************************************************
ok: [localhost] => {
"msg": "westus2"
}
PLAY RECAP *******************************************************************************************************
localhost : ok=7 changed=0 unreachable=0 failed=0 skipped=0 rescued=0 ignored=0
这表示还有另一种可能性,使用 Python 的 Ansible 功能。您可以使用列表的 index()
方法将 azure_location
的元素定位为与 azure_domains
.
中的 domain
处于相同位置的元素
例如如果 domain
位于 azure_domains
的位置 2
,您将在 azure_location
.
2
的元素
鉴于剧本:
- hosts: all
vars:
azure_vm_name: foo.bar.us-sea01.whatever.example.org
tasks:
- include_vars: azure_vars.yml
- set_fact:
host: "{{ azure_vm_name.split('.') }}"
- set_fact:
domain: "{{ host.2 }}"
- name: Domain
debug:
msg: "{{ domain }}"
- set_fact:
location: "{{ azure_location[azure_domains.index(domain)] }}"
- name: Location
debug:
msg: "{{ location }}"
和相同的变量文件azure_vars.yml,这产生了回顾:
PLAY [all] ******************************************************************************************************************
TASK [Gathering Facts] ******************************************************************************************************
ok: [localhost]
TASK [include_vars] *********************************************************************************************************
ok: [localhost]
TASK [set_fact] *************************************************************************************************************
ok: [localhost]
TASK [set_fact] *************************************************************************************************************
ok: [localhost]
TASK [Domain] ***************************************************************************************************************
ok: [localhost] => {
"msg": "us-sea01"
}
TASK [set_fact] *************************************************************************************************************
ok: [localhost]
TASK [Location] *************************************************************************************************************
ok: [localhost] => {
"msg": "westus2"
}
PLAY RECAP ******************************************************************************************************************
localhost : ok=7 changed=0 unreachable=0 failed=0 skipped=0 rescued=0 ignored=0
其中没有使用循环,因此更容易回顾。