how do i start the docker machine

[rihani]

how do i satrt the container please, i have tried all the following.
note that i cloned you git rep into a folder
i have other continer compose stack ruiing with no issue

docker-compose up
ERROR: Couldn't connect to Docker daemon at http+docker://localhost - is it running?

If it's at a non-standard location, specify the URL with the DOCKER_HOST environment variable.
ossama@AutoHome:~/node-red-contrib-selenium-webdriver$ eval "$(docker-machine env default)" docker-compose up -d --force-recreate

Command 'docker-machine' not found, but can be installed with:

sudo snap install docker

ERROR: Couldn't connect to Docker daemon at http+docker://localhost - is it running?

If it's at a non-standard location, specify the URL with the DOCKER_HOST environment variable.
ossama@AutoHome:/node-red-contrib-selenium-webdriver$
ossama@AutoHome:/node-red-contrib-selenium-webdriver$
ossama@AutoHome:/node-red-contrib-selenium-webdriver$ ls
docker-build docker-compose.yml docker-env-start.sh images LICENSE package.json README.md selenium-webdriver.html selenium-webdriver.js
ossama@AutoHome:/node-red-contrib-selenium-webdriver$ nano docker-env-start.sh
ossama@AutoHome:~/node-red-contrib-selenium-webdriver$ ./docker-env-start.sh
./docker-env-start.sh: line 1: docker-machine: command not found
ERROR: Couldn't connect to Docker daemon at http+docker://localhost - is it running?

If it's at a non-standard location, specify the URL with the DOCKER_HOST environment variable.
ossama@AutoHome:/node-red-contrib-selenium-webdriver$ cd docker-build/
ossama@AutoHome:/node-red-contrib-selenium-webdriver/docker-build$ ls
Dockerfile docker-init.sh docker-run.sh flows.json local-build.sh README.md settings.js
ossama@AutoHome:/node-red-contrib-selenium-webdriver/docker-build$ ./docker-init.sh
bash: ./docker-init.sh: Permission denied
ossama@AutoHome:/node-red-contrib-selenium-webdriver/docker-build$ sudo ./docker-init.sh
sudo: ./docker-init.sh: command not found
ossama@AutoHome:/node-red-contrib-selenium-webdriver/docker-build$ sudo bash docker-init.sh
docker-init.sh: line 1: docker-machine: command not found
ossama@AutoHome:/node-red-contrib-selenium-webdriver/docker-build$ ./docker-run.sh
bash: ./docker-run.sh: Permission denied
ossama@AutoHome:/node-red-contrib-selenium-webdriver/docker-build$ sudo ./docker-run.sh
sudo: ./docker-run.sh: command not found
ossama@AutoHome:/node-red-contrib-selenium-webdriver/docker-build$ sudo bash docker-run.sh
sh: 0: Can't open docker
sh: 0: Can't open docker
sh: 0: Can't open docker
sh: 0: Can't open docker
ossama@AutoHome:/node-red-contrib-selenium-webdriver/docker-build$ sudo bash docker-init.sh
docker-init.sh: line 1: docker-machine: command not found
ossama@AutoHome:/node-red-contrib-selenium-webdriver/docker-build$ nano docker-init.sh
ossama@AutoHome:~/node-red-contrib-selenium-webdriver/docker-build$ docker-compose up
ERROR: Couldn't connect to Docker daemon at http+docker://localhost - is it running?

If it's at a non-standard location, specify the URL with the DOCKER_HOST environment variable.
ossama@AutoHome:/node-red-contrib-selenium-webdriver/docker-build$ cd ..
ossama@AutoHome:/node-red-contrib-selenium-webdriver$ ls
docker-build docker-compose.yml docker-env-start.sh images LICENSE package.json README.md selenium-webdriver.html selenium-webdriver.js
ossama@AutoHome:/node-red-contrib-selenium-webdriver$ nano docker-compose.yml
ossama@AutoHome:/node-red-contrib-selenium-webdriver$ ls images/
test-scen.png test-spec.png
ossama@AutoHome:~/node-red-contrib-selenium-webdriver$