Ruby Snack #59: Intro to Docker

Folks have been asking me for a while to do a series on Docker. Well, I finally dove into numerous docs and tutorials to share my take on what makes Docker different and how to install it on Ubuntu.

[MikeChilson]

Thanks Melissa, great intro and overview of docker. Subscribed!

[mechlsd]

chmod +x /usr/local/bin/docker-compose

[lucascamino]

Hi guys! First of all let me thank you, Melissa, for bringing us so much light in this area.

I wanted to help all of you in the docker-compose installation step. If you copy and paste the lines shown in the video your system may not recognize the docker-compose command. After doing some web search I found this option (three commands):




sudo mv /usr/local/bin/docker-compose /usr/bin/docker-compose


sudo chmod +x /usr/bin/docker-compose

After this you can type:
docker-compose --version

and see the version of Compose in your terminal screen.

Hope this info was useful!

[louyalsadi]

Awsem ;) and thanks for the hint Melissa you are awsem <👏

[louyalsadi]

Thank you so much for the easy going up with ROR can you please help on Rspec initialize method for non typical function like file extension type accepted !
Also your videos helped me go up as junior ROR developer :)

[louyalsadi]

Thanh you so much Melissa!
This is part of waht in my controller to approve file ext from the customer :] how can I test this code using initialize method I am new for Rspec :)
def file_exe(file_path)
file_name = File.basename ("#{file_path}").downcase
file_extension = File.extname (file_name).downcase
if file_extension == ".pdf"
return "application/PDF", file_name
else
return false
end
end