Ansible Playbook으로 CMD 로그 / logrotate / openfile / SAR 설정하기

Wed, 05 Nov 2025 09:00:00 +0900

Redhat 계열 리눅스에서 Ansible로 시스템 로그 및 openfile, sar 설정 자동화

환경

Rocky 8.10

Ansible 설정

01. CMD 로그 설정

cmdlog_rogrotate_openfile.yaml

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---
- name: Configure cmd logging, logrotate, and open files on Rocky 8.10
 hosts: prod
 become: true

 handlers:
 - name: restart rsyslog
 ansible.builtin.systemd:
 name: rsyslog
 state: restarted
 enabled: true

 tasks:
 - name: 01. Ensure directories exist
 ansible.builtin.file:
 path: "{{ item }}"
 state: directory
 mode: '0755'
 loop:
 - /home/ncloud24/scripts
 - /var/log/backup

 - name: 02. Deploy logMoveDelete.sh
 ansible.builtin.copy:
 src: files/logMoveDelete.sh
 dest: /home/ncloud24/scripts/logMoveDelete.sh
 owner: root
 group: root
 mode: '0700'

 - name: 03. Register daily cron for logMoveDelete.sh (01:00)
 ansible.builtin.cron:
 name: "Move and cleanup .tar.gz logs"
 user: root
 minute: "0"
 hour: "1"
 job: "/home/ncloud24/scripts/logMoveDelete.sh"

 - name: 04. Deploy /etc/logrotate.conf (backup original)
 ansible.builtin.copy:
 src: files/logrotate.conf
 dest: /etc/logrotate.conf
 owner: root
 group: root
 mode: '0644'
 backup: true

 # 기존 /etc/logrotate.d/syslog 목록에 /var/log/cmd.log 추가
 - name: 05. Ensure /var/log/cmd.log included in /etc/logrotate.d/syslog list
 ansible.builtin.lineinfile:
 path: /etc/logrotate.d/syslog
 regexp: '^/var/log/cmd\.log$'
 line: '/var/log/cmd.log'
 insertafter: '^/var/log/secure'
 backup: true

 - name: 06. Deploy /etc/profile.d/cmd_logging.sh
 ansible.builtin.copy:
 src: files/cmd_logging.sh
 dest: /etc/profile.d/cmd_logging.sh
 owner: root
 group: root
 mode: '0700'

 - name: 07. Ensure rsyslog rule for local1.notice -> /var/log/cmd.log
 ansible.builtin.lineinfile:
 path: /etc/rsyslog.conf
 regexp: '^local1\.notice'
 line: 'local1.notice /var/log/cmd.log'
 insertafter: EOF
 backup: true
 notify: restart rsyslog

 # limits.conf 끝에 설정 (중복 방지)
 - name: 08. Append soft nofile to limits.conf
 ansible.builtin.lineinfile:
 path: /etc/security/limits.conf
 line: '* soft nofile 65535'
 regexp: '^\* +soft +nofile +\d+'
 insertafter: EOF
 create: true
 state: present

 - name: 09. Append hard nofile to limits.conf
 ansible.builtin.lineinfile:
 path: /etc/security/limits.conf
 line: '* hard nofile 65535'
 regexp: '^\* +hard +nofile +\d+'
 insertafter: EOF
 create: true
 state: present

 # user.conf 끝에 설정 (중복 방지)
 - name: 10. Ensure DefaultLimitNOFILE=65535 at end of /etc/systemd/user.conf
 ansible.builtin.lineinfile:
 path: /etc/systemd/user.conf
 regexp: '^#?DefaultLimitNOFILE='
 line: 'DefaultLimitNOFILE=65535'
 insertafter: EOF
 create: true
 state: present

 - name: 11. Reload systemd daemon
 ansible.builtin.systemd:
 daemon_reload: true

task01: 로그/스크립트 디렉터리 생성
task02: logMoveDelete.sh 배포 및 권한 설정
task03: 로그 관리 스크립트 cron 등록
task04: /etc/logrotate.conf 정책 설정
task05: /etc/logrotate.d/syslog 목록 설정
task06: /etc/profile.d/cmd_logging.sh 배포
task07: rsyslog.conf 설정 추가 + rsyslog 재시작
task08/09: limits.conf에 nofile 65535 soft/hard 설정(중복 방지)
task10: DefaultLimitNOFILE 설정
task11: systemd daemon-reload

files/cmd_logging.sh

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#!/bin/bash
# bash 대화형 세션에서 명령을 로깅
function logging
{
 stat="$?"
 cmd=$(history|tail -1)
 remoteaddr=$(who am i)
 if [ "$cmd" != "$cmd_old" ]; then
 logger -p local1.notice "[2] STAT=$stat"
 logger -p local1.notice "[1] $USER=$remoteaddr, PID=$$, PWD=$PWD, CMD=$cmd"
 fi
 cmd_old=$cmd
}
trap logging DEBUG

files/logMoveDelete.sh

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#!/bin/bash
PATH=/usr/sbin:/usr/bin:/sbin:/bin

source_dir="/var/log"
backup_dir="/var/log/backup"

# .tar.gz 파일을 백업 디렉토리로 이동
mv "$source_dir"/*.tar.gz "$backup_dir" 2>/dev/null || true

# 1년이 지난 파일 삭제
find "$backup_dir" -name "*.tar.gz" -type f -mtime +365 -exec rm {} \;

files/logrotate.conf

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daily
rotate 365
create
dateext
compress
compresscmd /bin/gzip
compressext .gz
include /etc/logrotate.d

/var/log/wtmp {
 monthly
 create 0664 root utmp
 minsize 1M
 rotate 1
}

/var/log/btmp {
 missingok
 monthly
 create 0600 root utmp
 rotate 1
}

02. SAR 로그 설정

sysstat 활성화 및 관리 주기 설정

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---
- name: Enable and configure sysstat (sar)
 hosts: prod
 become: true

 handlers:
 - name: restart sysstat
 ansible.builtin.systemd:
 name: sysstat
 state: restarted
 enabled: true

 tasks:
 - name: 01. Ensure sysstat package is installed
 ansible.builtin.package:
 name: sysstat
 state: present

 - name: 02. Set HISTORY=365 in /etc/sysconfig/sysstat
 ansible.builtin.lineinfile:
 path: /etc/sysconfig/sysstat
 regexp: '^HISTORY='
 line: 'HISTORY=365'
 insertafter: EOF
 backup: true
 notify: restart sysstat

 - name: 03. Set COMPRESSAFTER=90 in /etc/sysconfig/sysstat
 ansible.builtin.lineinfile:
 path: /etc/sysconfig/sysstat
 regexp: '^COMPRESSAFTER='
 line: 'COMPRESSAFTER=90'
 insertafter: EOF
 notify: restart sysstat

 - name: 04. Set ZIP="gzip" in /etc/sysconfig/sysstat
 ansible.builtin.lineinfile:
 path: /etc/sysconfig/sysstat
 regexp: '^ZIP='
 line: 'ZIP="gzip"'
 insertafter: EOF
 notify: restart sysstat

 - name: 05. Install /etc/cron.d/sysstat
 ansible.builtin.copy:
 dest: /etc/cron.d/sysstat
 owner: root
 group: root
 mode: '0644'
 content: |
 */1 * * * * root /usr/lib64/sa/sa1 1 1
 53 23 * * * root /usr/lib64/sa/sa2 -A
 notify: restart sysstat

 - name: 06. Ensure sysstat service is enabled and started
 ansible.builtin.systemd:
 name: sysstat
 enabled: true
 state: started

task01: sysstat 패키지 설치 확인
task02, 03, 04: /etc/sysconfig/sysstat 설정
task05: /etc/cron.d/sysstat 생성
task06: sysstat 활성화

Ansible Playbook으로 Docker 설치

Tue, 04 Nov 2025 09:00:00 +0900

RedHat 계열 리눅스에서 Ansible로 도커 설치하는 방법

Ansible 설정

install_docker.yaml

10대 이상의 리눅스에 도커를 설치하는 playbook

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- name: Install Docker CE on web/was hosts
 hosts: webwas
 become: true
 gather_facts: yes

 vars:
 conflict_pkgs:
 - docker.io
 - docker-doc
 - docker-compose
 - docker-compose-v2
 - podman-docker
 - containerd
 - runc

 docker_pkgs:
 - docker-ce
 - docker-ce-cli
 - containerd.io
 - docker-buildx-plugin
 - docker-compose-plugin

 tasks:
 - name: 01. Remove conflicting packages (ignore if not present)
 package:
 name: "{{ conflict_pkgs }}"
 state: absent

 - name: 02. Install prerequisites
 package:
 name: yum-utils
 state: present
 when: ansible_os_family == "RedHat"

 - name: 03. Add Docker CE yum repository (official)
 yum_repository:
 name: docker-ce-stable
 description: Docker CE Stable - $basearch
 baseurl: "https://download.docker.com/linux/centos/$releasever/$basearch/stable"
 gpgcheck: yes
 gpgkey: https://download.docker.com/linux/centos/gpg
 enabled: yes
 when: ansible_os_family == "RedHat"

 - name: 04. Install Docker CE packages
 package:
 name: "{{ docker_pkgs }}"
 state: present

 - name: 05. Enable and start Docker
 service:
 name: docker
 state: started
 enabled: yes

task01: 기존 충돌 패키지 제거
task02: 필수 패키지 설치
task03: Docker CE 패키지 리포지토리 추가
- OS 버전에 맞는 리포지토리 자동 설정
task04: 도커 설치
task05: 도커 서비스 시작 및 자동 실행

Playbook on Joonlog

Ansible Playbook으로 CMD 로그 / logrotate / openfile / SAR 설정하기

환경

Ansible 설정

01. CMD 로그 설정

02. SAR 로그 설정

Ansible Playbook으로 Docker 설치

Ansible 설정