公式ドキュメントに書かれている手順をやるだけのAnsible Playbook。

環境

Amazon Linux 2

URLを公式ドキュメントに沿って変更すれば他のディストリビューションでも可能？

Playbook

td-agent/tasks/main.yml

- name: setup ulimit
  pam_limits:
    domain: "{{ item.domain }}"
    limit_type: "{{ item.limit_type }}"
    limit_item: nofile
    value: 655360
  with_items:
    - domain: root
      limit_type: soft
    - domain: root
      limit_type: hard
    - domain: "*"
      limit_type: soft
    - domain: "*"
      limit_type: hard
  become: yes

- name: setup sysctl
  sysctl:
    name: "{{ item.name }}"
    value: "{{ item.value }}"
    state: present
    ignoreerrors: yes
  with_items:
    - name: net.core.somaxconn
      value: 1024
    - name: net.core.netdev_max_backlog
      value: 5000
    - name: net.core.rmem_max
      value: 16777216
    - name: net.core.wmem_max
      value: 16777216
    - name: net.ipv4.tcp_wmem
      value: 4096 12582912 16777216
    - name: net.ipv4.tcp_rmem
      value: 4096 12582912 16777216
    - name: net.ipv4.tcp_max_syn_backlog
      value: 8096
    - name: net.ipv4.tcp_slow_start_after_idle
      value: 0
    - name: net.ipv4.tcp_tw_reuse
      value: 1
    - name: net.ipv4.ip_local_port_range
      value: 10240 65535
  become: yes

- name: install td-agent
  command: curl -L https://toolbelt.treasuredata.com/sh/install-amazon2-td-agent3.sh | sh
  become: yes

参考