ansible使用9-Playbooks: Special Topics

Accelerated Mode

port 5099
持续连接30min

---

- hosts: all
  accelerate: true

  tasks:

  - name: some task
    command: echo {{ item }}
    with_items:
    - foo
    - bar
    - baz

# change port
---

- hosts: all
  accelerate: true
  # default port is 5099
  accelerate_port: 10000

or
# /etc/ansible/ansible.cfg
[accelerate]
accelerate_port = 5099

accelerate_multi_key = yes

UNIX socket file
default $ANSIBLE_REMOTE_TEMP/.ansible-accelerate/.local.socket

Asynchronous Actions and Polling

---
- hosts: all
  remote_user: root

  tasks:

  - name: simulate long running op (15 sec), wait for up to 45 sec, poll every 5 sec
    command: /bin/sleep 15
    async: 45
    poll: 5

---
- hosts: all
  remote_user: root

  tasks:

  - name: simulate long running op, allow to run for 45 sec, fire and forget
    command: /bin/sleep 15
    async: 45
    poll: 0

---
# Requires ansible 1.8+
- name: 'YUM - fire and forget task'
  yum: name=docker-io state=installed
  async: 1000
  poll: 0
  register: yum_sleeper

- name: 'YUM - check on fire and forget task'
  async_status: jid={{ yum_sleeper.ansible_job_id }}
  register: job_result
  until: job_result.finished
  retries: 30