Doni Leong donilan

donilan / install_docker_ce.sh

Last active May 11, 2020 01:51

Install docker ce on centos7

	#!/usr/bin/env bash

	sudo yum install -y yum-utils \
	device-mapper-persistent-data \
	lvm2
	sudo yum-config-manager \
	--add-repo \
	https://download.docker.com/linux/centos/docker-ce.repo
	sudo yum makecache fast

donilan / update_hostname.sh

Last active May 11, 2020 01:50

Update hostname, before execute this script, please export NEW_HOSTNAME=your.new.domain

	#!/usr/bin/env bash

	sudo hostname $NEW_HOSTNAME
	hostname \| sudo tee /etc/hostname
	sudo sed -i -e "s/ $(hostname)//g" -e "/127.0.0.1/s/\$/ $(hostname)/" /etc/hosts

donilan / create_swap.sh

Created April 24, 2020 04:10

Create swap for centos

	#!/usr/bin/env


	sudo dd if=/dev/zero of=/swapfile bs=4096 count=1024k && \
	sudo chmod 600 /swapfile && \
	sudo mkswap /swapfile && \
	sudo swapon /swapfile && \
	sudo cp /etc/fstab{,.bak} && \
	sudo echo "/swapfile swap swap sw 0 0" \| \
	sudo tee -a /etc/fstab

donilan / docker-compose-with-redmine.yml

Created May 14, 2020 01:49

docker-compose.yml for redmine

	version: '3'
	services:
	reverse-proxy:
	image: traefik:v2.2
	restart: always
	command:
	# - "--log.level=DEBUG"
	- "--api.insecure=true"
	- "--providers.docker=true"
	- "--providers.docker.exposedbydefault=false"

donilan / configure_cloudwatch_for_docker.sh

Last active May 14, 2020 01:59

Configure CloudWatch for docker on ubuntu

	#!/usr/bin/env bash

	cat << EOF \| sudo tee /etc/systemd/system/docker.service.d/aws-credentials.conf
	[Service]
	Environment="AWS_ACCESS_KEY_ID=$AWS_ACCESS_KEY_ID"
	Environment="AWS_SECRET_ACCESS_KEY=$AWS_SECRET_ACCESS_KEY"
	EOF

	sudo systemctl daemon-reload
	sudo systemctl start docker

donilan / backup_mysql.sh

Created May 14, 2020 02:09

dump/backup mysql database in docker way

	#!/usr/bin/env bash

	docker run --rm mysql:5.7 mysqldump \
	-uUSERNAME \
	-hmysq.example.com \
	-pPASSWORD database_name \| gzip > /path/to/your/backup/folder/backup_$(date +"%Y%m%d_%H%M%S").sql.gz

	# only keep 5 backups
	ls -1tr \| head -n -5 \| xargs -d '\n' rm -f --

donilan / docker_cleanup.sh

Last active May 20, 2020 08:31

Clean docker by cronjob

	#!/usr/bin/env bash

	#write out current crontab
	crontab -l > /tmp/mycron

	cat << EOF >> /tmp/mycron
	# please pay atention, 168h is 7 days, which mean is it only keep the images created in 14 days, other will be removed.
	0 0 * * * docker image prune -a --filter "until=$(date +'%Y-%m-%dT%H:%M:%S' --date='-14 days')"
	5 0 * * * docker container prune -f
	10 0 * * * docker volume prune -f