Setup script for golang, docker and docker-compose on Amazon Linux AMI 2017.09.0 (HVM) on EC2

setup_centos_instance.sh

#!bin/sh

# Update installed packages and package cache
sudo yum update -y

# make sure in the home folder
cd ~/

# Golang installation

# specify go version to install
VERSION=go1.9.linux-amd64.tar.gz

# download the go archive for the specified version
sudo curl -O https://storage.googleapis.com/golang/$VERSION

# extract the downloaded archive into the /usr/local folder
sudo tar -C /usr/local -xzf $VERSION

# setup the default GOPATH workspace
mkdir -p ~/go/bin

# set necessary go env variables
cat > ./go-env.sh <<EOL
export GOPATH=~/go
export PATH=$PATH:/usr/local/go/bin:~/go/bin
EOL
chmod +x ./go-env.sh
sudo mv ./go-env.sh /etc/profile.d/

# install git for go get command
# Docker installation
# http://docs.aws.amazon.com/AmazonECS/latest/developerguide/docker-basics.html
# install docker
sudo yum install -y git docker

# download the docker compose binary
curl -L https://github.com/docker/compose/releases/download/1.19.0/docker-compose-`uname -s`-`uname -m` > ./docker-compose

# mv docker-compose binary to usr/bin folder
sudo mv ./docker-compose /usr/bin/docker-compose

# make docker-compose binary executable
sudo chmod +x /usr/bin/docker-compose

# start the docker service
sudo service docker start

# add ec2-user to the docker group to lose the sudo command when using docker
sudo usermod -a -G docker ec2-user

sudo yum install git make

git clone https://github.com/ranger/ranger && cd ranger/ && sudo make install

curl -O https://dl.eff.org/certbot-auto
chmod +x certbot-auto
sudo mv certbot-auto /usr/local/bin/certbot-auto

cat ~/.ssh/id_rsa.pub | ssh -i ~/key.pem USER@HOST "mkdir -p ~/.ssh && cat >> ~/.ssh/authorized_keys"

Install gitlab ci runner

https://github.com/ayufan/gitlab-ci-multi-runner/blob/master/docs/install/linux-repository.md

curl -L https://packages.gitlab.com/install/repositories/runner/gitlab-runner/script.rpm.sh | sudo bash
sudo yum install gitlab-ci-multi-runner
gitlab-runner --version

# goto project settings -> runners
sudo gitlab-runner register

# if docker executor
sudo usermod -a -G docker gitlab-runner 

# if dind
sudo vim /etc/gitlab-runner/config.toml # to add priviliged flag (https://gitlab.com/gitlab-org/gitlab-runner/issues/1544#note_13439656) 
sudo gitlab-runner restart

sudo yum install gcc-c++ openssl-devel openssl
git clone https://github.com/AGWA/git-crypt.git
cd git-crypt
make
sudo make install
# To install to a custom location:
# sudo make install PREFIX=<location>

# This should validate that it's installed correctly
git-crypt --version