Questions & Help>Questions

Environment variable using docker-compose is always null

#docker#docker-compose
CAIOHOBORGHI

CAIOHOBORGHI

Environment variable using docker-compose is always null

How to use environment variables with docker without using phoenix?

With Phoenix it works but with only elixir is always null.

14 comments
#docker-compose
4 3354 14

Marked As Solved

NobbZ

NobbZ

This runs mix during build time of the container. At that point in time docker-compose has not yet set the environment.

You want to use CMD or ENTRYPOINT depending on your exact needs.

2
Post #19

Also Liked

stefanchrobot

stefanchrobot

It works the same. Just make sure you’re not fetching the ENV variables in config/config.exs or config/prod.exs - those are evaluated at build time. Either use config/runtime.exs or read in the app.

1
Post #2
stefanchrobot

stefanchrobot

web:
  environment:
    - DEBUG=1
1
Post #13

Where Next?

View thread on forum (has 14 responses!)
docker
docker-compose
Home Questions & Help>Questions
#docker#docker-compose
4 3356 14
Last post

Popular in Questions Top

JDanielMartinez
Questions & Help>Questions

** (RuntimeError) could not lookup Ecto repo Repo because it was not started or it does not exist
Hi! May someone helps me, please! I have two apps into an umbrella project: the first one is Database, which manages queries, and the se...
#umbrella#testing#repo#runtimeerror
11 15040 14
New
Tee
Questions & Help>Questions

Enumerables - how does Enum.reduce work with maps
can someone please explain to me how Enum.reduce works with maps
#erlang
18 14675 13
New
aalberti333
Questions & Help>Questions

Enum.map over list of key/value pairs with a map as the value
As the title describes, I’m trying to run Enum.map() over a list of key/value pairs, where the value is a map. My data looks like this: ...
#enummap
7 19677 6
New
sergio_101
Questions & Help>Questions

Pattern matching against a string
I am VERY much an elixir newbie. I have taken one elixir course and one phoenix course on Udemy. During that course, I saw the instructor...
#pattern-matching
27 26685 14
New
Harrisonl
Questions & Help>Questions

Deploying Elixir into ECS causing many "'global' at node :"xxxxx@10.0.X.X" requested disconnect from node :"xxxx@10.0.X.X" in order to prevent overlapping partitions"
We have an ECS cluster with 4 services, where each task joins a single cluster, via discovery ECS discovery service. Currently when I de...
#deployment
2 85219 3
New
myronmarston
Questions & Help>Questions

Typespecs - best way to spec keyword lists?
The Elixir Typespec docs show the following syntax for keyword lists in typespecs: # ... | [key: type] # keyword lis...
#dialyzer
52 14258 3
New
mathew4509
Questions & Help>Questions

Iterating through a list
I have a list say x = ["23gh", "56kh", "97mh"] I would like to pass each element to Val in each iteration. Say, in iteration 1 -------...
#book-programming-elixir#enumerables#enum#list
3 12090 5
New
Patoshizzle
Questions & Help>Questions

(Postgrex.Error) FATAL 28P01 (invalid_password) password authentication failed for user “postgres”
After calling mix ecto.create I get this error: 17:00:32.162 [error] GenServer #PID<0.412.0> terminating ** (Postgrex.Error) FATAL...
#ecto#postgres#troubleshooting
10 28696 20
New
beno
Questions & Help>Questions

Pattern match with multiple match options
I will often find my self writing things similar to: case some_value do nil -> something() "" -> something() _ -> someth...
#pattern-matching#how-to-question
29 15490 6
New
sabri
Questions & Help>Questions

Ecto pool_size?
Can someone explain the settings of pool_size of Ecto in config file? and what is the recommend size? Thanks
#ecto
30 14050 5
New

Other popular topics Top

jerry
Questions & Help>Questions

Ecto query using like/ilike in query
Good day to you all. I have been struggling to get a query involving like and ilike to work. Can anyone assist me on this, please? pro...
#ecto
17 16504 10
New
sergio
Learning Resources>Guides/Tuts/Tips/Info

Phoenix 1.6.0 LiveView + esbuild + Tailwind JIT + AlpineJS - A brief tutorial
I couldn’t find any guides that worked well with Phoenix 1.6.0 and esbuild. I hope this helps people test the waters and eases you into t...
/phoenix#liveview
137 17627 35
New
_russellb
Questions & Help>Questions

Web scraping tools
I want to try my hand at web scraping. What tools/libraries do I need to use. I’m hoping to turn this into something professional so don’...
#web-scraping
123 19127 45
New
malloryerik
Learning Resources>Guides/Tuts/Tips/Info

How to use 'phoenix-heex' templates in VSCode
Hi, this is for people who, like me, have had some friction using .html.heex templates in VSCode. The solution seems to be, in a hyphena...
/phoenix#vscode#heex
118 16932 34
New
KronicDeth
Libraries & Projects>Libraries

IntelliJ Elixir - Elixir plugin for JetBrain's IntelliJ Platform
Elixir plugin for JetBrain’s IntelliJ Platform (including Rubymine) This is a plugin that adds support for Elixir to JetBrains IntelliJ...
#intellij
289 35421 110
New
chensan
Questions & Help>Questions

(Postgrex.Error) ERROR 42804 (datatype_mismatch): column "" cannot be cast automatically to type integer
I have a User schema with a :from_id field set to type :string: defmodule TweetBot.Repo.Migrations.CreateUsers do use Ecto.Migration ...
#ecto
29 13294 4
New
electic
Questions & Help>Questions

DateTime Format to string?
Hi, I am new to Elixir. I am trying to use the DateTime component to insert a date into MySQL however the there seems to be no way to fo...
#datetime
19 24687 16
New
vrod
Questions & Help>Questions

Starship (cross-shell prompt) error - (starship::utils): Executing command "elixir" timed out
I am using the Starship cross-shell prompt – it seems pretty nice, but I get some errors: [WARN] - (starship::utils): Executing command ...
#starship
8 17167 3
New
lanycrost
Questions & Help>Questions

How To Implement if...else if...else condition
Hi everyone! I need implement if…else if…else condition from my elixir code, and anymore of this control flow structures not work proper...
#how-to-question
40 51494 6
New
magnetic
Learning Resources>Guides/Tuts/Tips/Info

Configuring VSCode to use with Elixir and Phoenix Templates
Hey :wave:t3: Elixir community, I’ve been learning Elixir, and working on some side projects. My editor of choice is VSCode, and althoug...
#phoenix_html#vs-code#vscode-elixir#elixir-ls
43 16832 15
New
Back to top

Questions & Help>Questions

Questions Questions ❯

Latest on Elixir Forum

Elixir Forum ❯

Sponsor Spotlight

ElixirCasts

Producing high quality Elixir screencasts since 2017.

Our Sponsors

Dashbit

Build Elixir applications with speed and confidence.

EEF

Supporting innovation across the BEAM ecosystem.

Coders51

We build reliable cloud platforms for business-critical systems.

AppSignal

Catch errors, track performance, monitor hosts and more.

Pragmatic Bookshelf

Practical resources that improve the lives of professional developers.

Manning

Develop your skills with books, videos, and courses.

ElixirCasts

Producing high quality Elixir screencasts since 2017.

Pragmatic Studio

Courses that'll move you from confusion to "Aha, now I get it!"

View all our sponsors ❯

Categories:

Sub Categories:

Forums

Our Sponsors

Dashbit

Build Elixir applications with speed and confidence.

EEF

Supporting innovation across the BEAM ecosystem.

Coders51

We build reliable cloud platforms for business-critical systems.

AppSignal

Catch errors, track performance, monitor hosts and more.

Pragmatic Bookshelf

Practical resources that improve the lives of professional developers.

Manning

Develop your skills with books, videos, and courses.

ElixirCasts

Producing high quality Elixir screencasts since 2017.

Pragmatic Studio

Courses that'll move you from confusion to "Aha, now I get it!"

View all our sponsors ❯

We're in Beta

About us Mission Statement