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48 lines
1.6 KiB
48 lines
1.6 KiB
---
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# This playbook does a rolling update for all webservers serially (one at a time).
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# Change the value of serial: to adjust the number of server to be updated.
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#
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# The three roles that apply to the webserver hosts will be applied: common,
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# base-apache, and web. So any changes to configuration, package updates, etc,
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# will be applied as part of the rolling update process.
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#
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# gather facts from monitoring nodes for iptables rules
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- hosts: monitoring
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tasks: []
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- hosts: webservers
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remote_user: root
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serial: 1
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# These are the tasks to run before applying updates:
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pre_tasks:
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- name: disable nagios alerts for this host webserver service
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nagios: 'action=disable_alerts host={{ inventory_hostname }} services=webserver'
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delegate_to: "{{ item }}"
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with_items: groups.monitoring
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- name: disable the server in haproxy
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haproxy: 'state=disabled backend=myapplb host={{ inventory_hostname }} socket=/var/lib/haproxy/stats'
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delegate_to: "{{ item }}"
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with_items: groups.lbservers
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roles:
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- common
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- base-apache
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- web
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# These tasks run after the roles:
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post_tasks:
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- name: wait for webserver to come up
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wait_for: 'host={{ inventory_hostname }} port=80 state=started timeout=80'
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- name: enable the server in haproxy
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haproxy: 'state=enabled backend=myapplb host={{ inventory_hostname }} socket=/var/lib/haproxy/stats'
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delegate_to: "{{ item }}"
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with_items: groups.lbservers
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- name: re-enable nagios alerts
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nagios: 'action=enable_alerts host={{ inventory_hostname }} services=webserver'
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delegate_to: "{{ item }}"
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with_items: groups.monitoring
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