Docker Environment Configs, Variables, and Entrypoints

In this clip, I go through the multiple ways to get your environment variables into a container, and what shouldn't go into your ENV's
Twelve Factor Apps: The Config
12factor.net/c...
Sample PHP Dockerfile with lots of ENV
github.com/Bre...
Those Same ENV's overwritten with docker-compose.yml
github.com/Bre...
Simple example of using Docker ENV's to create custom app config
github.com/Bre...
Docker MySQL Official Image Entrypoint Script that creates ENV's from files (for secrets)
github.com/doc...
3 Docker Compose Features for Improving Team Development Workflow
www.oreilly.co...

[@JohnBailey]

:wave: :)

[@davejones542]

you made a video that isnt 2 hours long ?

[@charitrasharma8443]

I wanna replace a TestData.yml file which i am getting on runtime with different values, in particular location of my docker image with run command. Is dere any option to do that?

[@patrickdk77]

Open source does not mean there is no copyright for you to just copy it. Needs to be public domain. Or likely mit/bad license

[@abhishekbiswal7933]

Hi I have one .env file for our php applications which our application looks in a specific folder inside the container .but i don't want to keep inside. any suggestion for that.

[@TheIaluma]

what is causing this errors below every time run a docker, container run docker-compose up and others and how do I over comes these kinds of errors?
ERROR: for proxy Cannot start service proxy: driver failed programming external connectivity on endpoint compose-sample-3_proxy_1 (c8413cedb7ba6d88be857bd5241a6113749861e6a3efce0d2742d368af847963): Error starting userland proxy: listen tcp 0.0.0.0:80: bind: address already in use
ERROR: Encountered errors while bringing up the project.

[@BretFisher]

I recommend forums.docker.com and stackoverflow.com for troubleshooting help

[@sujeetagrahari2292]

"env path /opt/node_app/node_modules/.bin:$path" what does this do??

[@BretFisher]

That's the directory that node modules put their binaries. You'll then need to add them to your path to use them (like nodemon).

[@sujeetagrahari2292]

@@BretFisher But It's already inside node_mudules, wont' that be available locally to use as nodemon?

[@vierminus]

Awesome, thank you!

[@irvinge4641]

Hi, I am having trouble passing env variables into the docker run command. How can I do sommething like
docker run -t myImage -e envVar=$envVarOnThisMachine

[@BretFisher]

I recommend asking in the docker forums forums.docker.com

[@Resistance_is_futile1337]

Thanks!

[@abiodunmichael3180]

👋

[@abiodunmichael3180]

😆

[@fredokwunna6903]

:wave:

[@ave143]

👋🏽

[@avikkundu]

:wave:

[@storytime-c1p]

:wave:

[@fredokwunna6903]

Awesome video Bret

[@Raj-si5yz]

Hi Bret,thanks.Why we use environment variable.

[@CharlieArehart1]

Ankit, see @3:45-5:15.

[@user779hjg45]

23 min to explain how to use variables?