docker, gitlab runner 설치 및 테스트 스크립트

설치 스크립트

#!/bin/bash
amazon-linux-extras install -y docker
usermod -aG docker ec2-user
systemctl enable docker
systemctl start docker
curl -L "https://packages.gitlab.com/install/repositories/runner/gitlab-runner/script.rpm.sh" | bash
yum install -y gitlab-runner-14.10.0-1

버퍼/캐시 비우기(/swap 파일이 스왑 메모리로 사용되고 있을 경우)

echo 3 > /proc/sys/vm/drop_caches
swapoff -a
swapon /swapfile

스왑파일을 이용한 스왑 메모리 할당

# 2GB 할당
sudo dd if=/dev/zero of=/swapfile bs=4KB count=512000
512000+0 records in
512000+0 records out
2048000000 bytes (2.0 GB) copied, 14.9841 s, 137 MB/s

# 1GB 할당
dd if=/dev/zero of=/swapfile bs=4KB count=256000
chmod 600 /swapfile
mkswap /swapfile
swapon /swapfile

스왑 used 추출 커맨드

free -m
              total        used        free      shared  buff/cache   available
Mem:          32072        2879       13432          68       15760       28680
스왑:        2047           0        2047
free -m | awk '/^Swap/ {print $3}'
free -m | awk '/^스왑/ {print $3}'
0

도커, 깃랩러너 설치 및 스왑 활성화

#!/bin/bash
amazon-linux-extras install -y docker
usermod -aG docker ec2-user
systemctl enable docker
systemctl start docker
curl -L "https://packages.gitlab.com/install/repositories/runner/gitlab-runner/script.rpm.sh" | bash
yum install -y gitlab-runner-14.10.0-1
dd if=/dev/zero of=/swapfile bs=4KB count=512000
chmod 600 /swapfile
mkswap /swapfile
swapon /swapfile