Merge pull request #20 from linuxserver/compose

add compose install instructions

general/docker-compose.md

@@ -2,9 +2,31 @@
 
 ## Intro
 
-Compose is a tool for defining and running multi-container Docker applications. With Compose, you use a YAML file to configure your application’s services. Then, with a single command, you create and start all the services from your configuration. You can follow these instructions to install docker-compose: [https://docs.docker.com/compose/install/](https://docs.docker.com/compose/install/)
+Compose is a tool for defining and running multi-container Docker applications. With Compose, you use a YAML file to configure your application’s services. Then, with a single command, you create and start all the services from your configuration. 
 
-## Single service
+## Installation
+
+### Install Option 1 (recommended):
+You can install docker-compose using our [docker-compose image](https://github.com/linuxserver/docker-docker-compose) via a run script. You can simply run the following commands on your system and you should have a functional install that you can call from anywhere as `docker-compose`:
+```
+sudo curl -L --fail https://raw.githubusercontent.com/linuxserver/docker-docker-compose/master/run.sh -o /usr/local/bin/docker-compose
+sudo chmod +x /usr/local/bin/docker-compose
+```
+In order to update the local image, you can run the following commands:
+```
+docker pull linuxserver/docker-compose:"${DOCKER_COMPOSE_IMAGE_TAG:-latest}"
+docker image prune -f
+```
+To use the slimmer and more lightweight alpine based image, you can set an env var `DOCKER_COMPOSE_IMAGE_TAG=alpine` in your respective `.profile`. Alternatively you can set that var to a versioned image tag like `version-1.27.4` or `version-alpine-1.27.4` to pin it to a specific docker-compose version.
+
+### Install Option 2:
+We also publish binaries for docker-compose in [this repo](https://github.com/linuxserver/docker-docker-compose/releases). There are two versions, one for glibc based systems like Ubuntu and Debian, and one for musl based systems like Alpine. The latter are marked with the `alpine` tag. Each version contains binaries for `amd64`, `armhf` and `arm64`. You can pull these binaries into your system via the following commands to have a functional docker-compose install:
+```
+sudo curl -L --fail https://github.com/linuxserver/docker-docker-compose/releases/download/1.27.4-ls17/docker-compose-amd64 -o /usr/local/bin/docker-compose
+sudo chmod +x /usr/local/bin/docker-compose
+```
+
+## Single service Usage
 
 Here's a basic example for deploying a Linuxserver container with docker-compose:
 
@@ -32,7 +54,7 @@ If you want to do it from a different folder or if you named the yaml file diffe
 
 To bring down the services, simply do `docker-compose down` or `docker-compose -f /path/to/heimdall.yml down` and all containers defined by the yml will be stopped and destroyed.
 
-## Multiple Services
+## Multiple Service Usage
 
 You can have multiple services managed by a single compose yaml. Copy the contents below the `services:` line in any of our readme yaml samples into the same yaml file and the `docker-compose up/down` commands will apply to all services at once.