Konstantin udzielił dobrej odpowiedzi; tutaj jest dodatkowy smak.
Zwykle będę definiować listy jako zmienne i po prostu napiszę dwie osobne pętle nad tą samą zmienną:
┌─[jamesph@geror] - [~/temp] - [Sat Jan 13, 10:06]
└─[$]> cat loops-1.yml
- hosts: localhost
gather_facts: no
vars:
menu:
- Egg and Spam
- Spam, bacon, sausage and Spam
- Spam, Spam, Spam, Spam, Spam, Spam, baked beans, Spam, Spam, Spam and Spam
tasks:
- debug:
msg: "We have {{ item }}"
with_items: "{{ menu }}"
- debug:
msg: "I love {{ item }}!"
with_items: "{{ menu }}"
┌─[jamesph@geror] - [~/temp] - [Sat Jan 13, 10:06]
└─[$]> ansible-playbook loops-1.yml
[WARNING]: Unable to parse /etc/ansible/hosts as an inventory source
[WARNING]: No inventory was parsed, only implicit localhost is available
[WARNING]: Could not match supplied host pattern, ignoring: all
[WARNING]: provided hosts list is empty, only localhost is available
PLAY [localhost] **********************************************************************************************************************
TASK [debug] **************************************************************************************************************************
ok: [localhost] => (item=Egg and Spam) => {
"changed": false,
"item": "Egg and Spam",
"msg": "We have Egg and Spam"
}
ok: [localhost] => (item=Spam, bacon, sausage and Spam) => {
"changed": false,
"item": "Spam, bacon, sausage and Spam",
"msg": "We have Spam, bacon, sausage and Spam"
}
ok: [localhost] => (item=Spam, Spam, Spam, Spam, Spam, Spam, baked beans, Spam, Spam, Spam and Spam) => {
"changed": false,
"item": "Spam, Spam, Spam, Spam, Spam, Spam, baked beans, Spam, Spam, Spam and Spam",
"msg": "We have Spam, Spam, Spam, Spam, Spam, Spam, baked beans, Spam, Spam, Spam and Spam"
}
TASK [debug] **************************************************************************************************************************
ok: [localhost] => (item=Egg and Spam) => {
"changed": false,
"item": "Egg and Spam",
"msg": "I love Egg and Spam!"
}
ok: [localhost] => (item=Spam, bacon, sausage and Spam) => {
"changed": false,
"item": "Spam, bacon, sausage and Spam",
"msg": "I love Spam, bacon, sausage and Spam!"
}
ok: [localhost] => (item=Spam, Spam, Spam, Spam, Spam, Spam, baked beans, Spam, Spam, Spam and Spam) => {
"changed": false,
"item": "Spam, Spam, Spam, Spam, Spam, Spam, baked beans, Spam, Spam, Spam and Spam",
"msg": "I love Spam, Spam, Spam, Spam, Spam, Spam, baked beans, Spam, Spam, Spam and Spam!"
}
PLAY RECAP ****************************************************************************************************************************
localhost : ok=2 changed=0 unreachable=0 failed=0
Działa to dobrze ze zmiennym priorytetem , na przykład poprzez definiowanie różnych zestawów serwerów dla środowiska. Działa również, gdy trzeba wykonać różne inne niepętlowe zadania pomiędzy dwiema pętlami.
loop
nablock
bloku. Wydaje się, że jest to wymagane, ale odrzucone przez numer 13262 Ansible GH .:-(