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Environment variables not being set by `docker-compose run -e VAR=VALUE` #6889

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abl opened this issue Sep 8, 2019 · 2 comments

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@abl
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commented Sep 8, 2019

Description of the issue

Using docker-compose I'm unable to get environment variables to be set at runtime. This is applying both to docker-compose up and docker-compose run with -e overrides. docker run works as expected.

Context information (for bug reports)

Output of docker-compose version

docker-compose version 1.24.1, build 4667896b
docker-py version: 3.7.3
CPython version: 3.6.8
OpenSSL version: OpenSSL 1.1.0j  20 Nov 2018

Output of docker version

Client:
 Version:           18.09.6
 API version:       1.39
 Go version:        go1.11
 Git commit:        8cdf373
 Built:             Thu Aug 15 06:47:17 2019
 OS/Arch:           linux/amd64
 Experimental:      false

Server:
 Engine:
  Version:          18.09.6
  API version:      1.39 (minimum version 1.12)
  Go version:       go1.11
  Git commit:       62fd7b0
  Built:            Thu Aug 15 06:45:45 2019
  OS/Arch:          linux/amd64
  Experimental:     false

Output of docker-compose config
(Make sure to add the relevant -f and other flags)

services:
  letsencrypt-dns:
    container_name: letsencrypt-dns
    environment:
      LETSENCRYPT_USER_MAIL: redacted@redacted.com
      LEXICON_LINODE4_AUTH_TOKEN: redacted
      LEXICON_LINODE4_TTL: '300'
      LEXICON_PROVIDER: linode4
      LEXICON_SLEEP_TIME: '1200'
    image: adferrand/letsencrypt-dns:latest
    logging:
      driver: json-file
      options:
        max-size: 10m
    volumes:
    - /volume1/docker/letsencrypt-dns:/etc/letsencrypt:rw
    - /var/run/docker.sock:/var/run/docker.sock:rw
version: '3.0'

Steps to reproduce the issue

  1. docker-compose run --rm -e LETSENCRYPT_STAGING=true letsencrypt-dns env | grep LETSENCRYPT_STAGING
  2. docker run --rm -e LETSENCRYPT_STAGING=true adferrand/letsencrypt-dns env | grep LETSENCRYPT_STAGING
  3. Attempt to run the above docker-compose.yml and note that all environment variables are as their defaults in the Dockerfile.

Observed result

  1. LETSENCRYPT_STAGING=false
  2. LETSENCRYPT_STAGING=true
  3. Various failures in the logs as all environment variables are set to their defaults.

Expected result

  1. LETSENCRYPT_STAGING=true
  2. LETSENCRYPT_STAGING=true
  3. Success.

Stacktrace / full error message

N/A

Additional information

Synology DSM 6.2.2-24922 Update 2 (synology_apollolake_918+); docker-compose installed via curl.

@AeroSW

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commented Sep 8, 2019

I'm having the same issue here, except it is complaining with the following:

ERROR: Invalid interpolation format for "environment" option in service "back-end": ENVIRONMENT Variable

I'm using a ".env" file in my project.
It is complaining about the first environment line, "VAR1: ${ENV_VAR1}", in my compose formatted as the following:

environment:
    VAR1: ${ENV_VAR1}
    VAR2: ${ENV_VAR2}
    VAR3: ${ENV_VAR3}

When I escaped the $ on each environment declaration, "VAR1: $${ENV_VAR1}", it ran the compose, but the environment variables were undefined, as expected. Did something happen to the interpreter for the Docker Compose YAML?

P.S. I did have 1 line with a $ in the ".env", but it was something that I was not using, so I deleted the line outright, but I am still receiving this error.

@abl

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commented Sep 9, 2019

Also of note - none of the variables in the environment section are set during run or up.

This YAML worked before so I assumed it was an issue in the Dockerfile but I can’t explain why docker run has different behavior.

No errors are surfaced by docker or docker-compose.

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