# Installation of ddev, docker and virtual box on Mac OS 10.12.6

Hello devs, 

I am going to explain the issue and solutions while installing `ddev`, `docker` and `docker-compose` on Mac OS 10.12.6 or older versions.

For the past couple days I was supporting work on the Mautic open source project issue. But because of my older Mac OS I was not able to install PHP's latest version which supports the latest Mautic version. So the community has suggested using ** [ddev](https://ddev.readthedocs.io/en/stable/ ) ** installation to use a virtual environment without worrying about local machine compatibility. But my struggle does not end here. To use `ddev` prerequisites was to install `docker` and `docker-compose`. None of them was compatible with the  Mac OS 10.12.6 version. I struggled a lot no where I found a combined blog where I got a solution to fix the issue, so I thought of writing these steps to solve the issue which can help any other developer who will face this same issue in old Mac OS ( Problem is can't upgrade OS ). 

**What is DDEV** ? 

**DDEV** is an open source tool that makes it dead simple to get local PHP development environments up and running within minutes. It's very powerful and flexible as it per project wise environment. In short, **DDEV** aims to allow development teams to use Docker in their workflow without the complexities of bespoke configuration. [More details can found here](https://ddev.readthedocs.io/en/stable/) 

Let's start with steps to installation of `ddev`, `docker` and `docker-compose`

**Installation of  `ddev`**: 

As per document of `ddev` installation site. We have to run below command 
```
brew install drud/ddev/ddev
```
But, it throws an error about not supporting the OS version error.

![Screen Shot 2021-05-21 at 7.01.41 PM.png](https://cdn.hashnode.com/res/hashnode/image/upload/v1621625178636/PY5lhnTC-.png)

Homebrew does not support your OS version, so you'll need to use the `install_ddev.sh` technique. See the script installation technique at  [https://ddev.readthedocs.io/en/stable/](https://ddev.readthedocs.io/en/stable/) 

**Note**: I imagine you'll also find that docker desktop doesn't support your os version though.

To install via sh script. You run below script :

```
curl -LO https://raw.githubusercontent.com/drud/ddev/master/scripts/install_ddev.sh && bash install_ddev.sh
```
Cool ! Installation of `ddev` is completed. but when you trying to command `ddev start` it will throw error saying 

```
Could not connect to docker. Please ensure Docker is installed and running. 
```
**Installation of `docker` and `docker-compose`** : 

Docker can't be installed directly by installing docker desktop app because it does not support older versions of Mac OS 10.12.6. Then installation steps will be different. 

```
$ brew install docker docker-machine 
$ brew cask install virtualbox
It will ask for password to address system preference setting.  
$ docker-machine create --driver virtualbox default
$ docker-machine env default
$ eval "$(docker-machine env default)"
$ docker run hello-world
$ docker-machine stop default
$ brew install docker-compose
```

After running `brew install docker docker-machine` run this below command to link this version. Otherwise your will see error of `docker command not found`

```
brew link docker
```

Make sure while running `ddev start` docker default image should run. By following these steps docker will not available in Application of Mac OS. because this docker cli installation. 

Hope this blog will help you to solve installation issue. If you have query related to you can reach out to me over my twitter handle [@aviboy2006](https://twitter.com/aviboy2006)

**Reference which help me and thank to this references** :
- https://medium.com/crowdbotics/a-complete-one-by-one-guide-to-install-docker-on-your-mac-os-using-homebrew-e818eb4cfc3
- https://stackoverflow.com/questions/67637879/issue-while-installing-ddev-on-mac-os-10-12-6?noredirect=1#comment119556478_67637879
- https://stackoverflow.com/a/43365425/6285054