added Docker-compose on apt-get and yum

Author: tharindupr

README.md

@@ -26,3 +26,4 @@ This will install Git on your machine!
 | Docker  	| 👍      	| 👍 	| WIP 	| WIP 	| https://installer.to/docker  |
 | Kubectl 	| 👍       	| WIP 	| WIP 	| WIP  	| https://installer.to/kubectl |
 | NVM     	| WIP       | WIP 	| WIP 	| WIP  	| https://installer.to/nvm |
+| Docker Compose     	| 👍       | 👍 	| WIP 	| WIP  	| https://installer.to/docker-compose |

installers/docker-compose/installer.sh

@@ -0,0 +1,40 @@
+#!/bin/sh
+      
+CURL_CMD=$(which curl) # curl tool
+YUM_CMD=$(which yum) # yum package manager for RHEL & CentOS
+DNF_CMD=$(which dnf) # dnf package manager for new RHEL & CentOS
+APT_GET_CMD=$(which apt-get) # apt package manager for Ubuntu & other Debian based distributions
+PACMAN_CMD=$(which pacman) # pacman package manager for ArchLinux
+APK_CMD=$(which apk) # apk package manager for Alpine
+GIT_CMD=$(which git) # to build from source pulling from git
+SUDO_CMD=$(which sudo) # check if sudo command is there
+
+USER="$(id -un 2>/dev/null || true)"
+SUDO=''
+if [ "$USER" != 'root' ]; then
+	if [ ! -z $SUDO_CMD ]; then
+		SUDO='sudo'
+	else
+		cat >&2 <<-'EOF'
+		Error: this installer needs the ability to run commands as root.
+		We are unable to find "sudo". Make sure its available to make this happen
+		EOF
+		exit 1
+	fi
+fi
+
+if [ ! -z $APT_GET_CMD ]; then
+   $SUDO apt-get update
+   $SUDO apt-get install curl
+   $SUDO curl -L "https://github.com/docker/compose/releases/download/1.26.1/docker-compose-$(uname -s)-$(uname -m)" -o /usr/local/bin/docker-compose
+   $SUDO chmod +x /usr/local/bin/docker-compose
+   
+elif [ ! -z $YUM_CMD ]; then
+   $SUDO yum install curl
+   $SUDO curl -L "https://github.com/docker/compose/releases/download/1.26.1/docker-compose-$(uname -s)-$(uname -m)" -o /usr/local/bin/docker-compose
+   $SUDO chmod +x /usr/local/bin/docker-compose
+   
+else
+   echo "Couldn't install package"
+   exit 1;
+fi