Droplet setup

droplet.sh

# remove LANG warning on ssh connection
printf "LANG=en_US.utf-8\nLC_ALL=en_US.utf-8" > /etc/environment

# if you have strong reasons disable selinux...
printf "SELINUX=disabled" > /etc/selinux/config

# update system
yum upgrade -y
yum clean all
yum makecache timer

# docker on centos7 (https://docs.docker.com/install/linux/docker-ce/centos)
yum install -y yum-utils device-mapper-persistent-data lvm2
yum-config-manager --add-repo https://download.docker.com/linux/centos/docker-ce.repo
yum install -y docker-ce docker-ce-cli containerd.io

# docker on centos8
dnf config-manager --add-repo=https://download.docker.com/linux/centos/docker-ce.repo
dnf install docker-ce --nobest -y

systemctl enable docker
systemctl start docker

# install docker-compose (https://docs.docker.com/compose/install/)
curl -L "https://github.com/docker/compose/releases/download/1.25.0/docker-compose-$(uname -s)-$(uname -m)" -o /usr/local/bin/docker-compose
chmod +x /usr/local/bin/docker-compose

# nodejs and yarn are always handy
curl --silent --location https://rpm.nodesource.com/setup_12.x | bash - && yum install -y nodejs
npm install -g yarn

# reboot and let the party begin
reboot