best way to add multiple lines to a file.

[Darup tek]

I would like to add these lines to a file at the end sysctl.conf

net.ipv6.conf.all.disable_ipv6=1

net.ipv4.tcp_no_metrics_save = 1

net.ipv4.tcp_moderate_rcvbuf = 1

net.ipv4.tcp_fin_timeout = 15

net.ipv4.tcp_keepalive_time = 1800

net.ipv4.tcp_keepalive_probes = 4

I am adding these using several lineinfile: 

What is the best way to knock it down with one module

[Brian Coca]

i would use sysctl module + with_items​

[Darup tek]

I am currently doing this, want a better one :)

  - name: Changes to sysctl.conf

    lineinfile:

     dest=/tmp/1

     regexp="{{ item.regexp }}"

     line="{{ item.line }}"

    with_items:

     - { regexp: '^net.ipv6.conf.all.disable_ipv6', line: 'net.ipv6.conf.all.disable_ipv6 = 1' }

     - { regexp: '^net.ipv4.tcp_no_metrics_save', line: 'net.ipv4.tcp_no_metrics_save = 1' }

     - { regexp: '^net.ipv4.tcp_moderate_rcvbuf', line: 'net.ipv4.tcp_moderate_rcvbuf = 1' }

     - { regexp: '^net.ipv4.tcp_fin_timeout', line: 'net.ipv4.tcp_fin_timeout = 15' }

     - { regexp: '^net.ipv4.tcp_keepalive_time', line: 'net.ipv4.tcp_keepalive_time = 1800' }

     - { regexp: '^net.ipv4.tcp_keepalive_probes', line: 'net.ipv4.tcp_keepalive_probes = 4' }

[David Karban]

Hí Darup,

i believe that Brian thougth sysctl module: http://docs.ansible.com/sysctl_module.html

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David Karban
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www.karban.eu

[Takeshi Yaegashi]

Hi there,

I agree it's the best to use a specific module (sysctl_module) for your specific task,

but here's the alternative I made: https://galaxy.ansible.com/list#/roles/1475

(the table rendering is broken, see https://github.com/yaegashi/ansible-role-blockinfile instead)

- hosts: all

  sudo: yes

  roles:

    - yaegashi.blockinfile

  tasks:

    - name: Update sysctl.conf

      blockinfile: |

        dest=/etc/sysctl.conf backup=yes

        content='net.ipv6.conf.all.disable_ipv6=1

        net.ipv4.tcp_no_metrics_save = 1

        net.ipv4.tcp_moderate_rcvbuf = 1

        net.ipv4.tcp_fin_timeout = 15

        net.ipv4.tcp_keepalive_time = 1800

        net.ipv4.tcp_keepalive_probes = 4'

      notify: Reload sysctl

  handlers:

    - name: Reload sysctl.conf

      shell: sysctl -p

2014年8月29日金曜日 3時25分15秒 UTC+9 David Karban:

Regards,

-- 

YAEGASHI Takeshi <yaeg...@debian.org> 

[Darup tek]

Thanks, I will try that.