Unable to parse the docker-compose.yml with env var.

[pratikid]

Description:

Error is generated while trying to parse docker-compose.yml along with environment variables.

We are using certain components of laradock to run containers with required components. To keep the yaml file up-to-date with the repository, we tried to parse docker-compose.yml with Symfony Yaml components for further modification.

Laravel code for parsing yaml:

use Symfony\Component\Yaml\Yaml;

$value = Yaml::parseFile('docker-compose.yml');
dd($value);

After executing above code below output is obtained:
OUTPUT

^ array:4 [▼
  "version" => "3"
  "networks" => array:2 [▶]
  "volumes" => array:23 [▶]
  "services" => array:85 [▶]
]

Further steps:

1. We renamed env-example to .env
2. Stored the output of docker-compose config to docker-compose.yml
   • docker-compose config command display output of yaml file with environment variables loaded.

   docker-compose config > docker-compose.yml

3. Tried to parse the docker-compose.yml again with environment variables loaded. [Generated Error]

Expected Behavior:

Output as mentioned above, along with the environment variables loaded inside array.

Context information:

Output of git rev-parse HEAD

9d68a48c3e22f83520acb1cd4c72de9dcf7e91fb

Output of docker version

Client: Docker Engine - Community
 Version:           19.03.9
 API version:       1.40
 Go version:        go1.13.10
 Git commit:        9d988398e7
 Built:             Fri May 15 00:25:27 2020
 OS/Arch:           linux/amd64
 Experimental:      false

Server: Docker Engine - Community
 Engine:
  Version:          19.03.9
  API version:      1.40 (minimum version 1.12)
  Go version:       go1.13.10
  Git commit:       9d988398e7
  Built:            Fri May 15 00:24:05 2020
  OS/Arch:          linux/amd64
  Experimental:     false
 containerd:
  Version:          1.2.13
  GitCommit:        7ad184331fa3e55e52b890ea95e65ba581ae3429
 runc:
  Version:          1.0.0-rc10
  GitCommit:        dc9208a3303feef5b3839f4323d9beb36df0a9dd
 docker-init:
  Version:          0.18.0
  GitCommit:        fec3683

Output of docker-compose version

docker-compose version 1.25.5, build 8a1c60f6
docker-py version: 4.1.0
CPython version: 3.7.5
OpenSSL version: OpenSSL 1.1.0l  10 Sep 2019

System info: CentOS 7

Kernel release: 3.10.0-1062.18.1.el7.x86_64
Architecture: x86_64
Operating System: CentOS Linux release 7.7.1908 (Core)

Steps to reproduce the issue:

Basic Laravel setup with Yaml Component to parse docker-compose.yml with the environment loaded.

1. Configure Laravel/Symfony framework with Yaml Component(Symfony).
2. Keep docker-compose.yml and env-example(renamed to .env) in the same directory.
3. Execute docker-compose config and store the output in another yaml file "docker-compose.yml".
4. Parse file using Yaml Component.
   • Sample code

   use Symfony\Component\Yaml\Yaml;
   dd(Yaml::parseFile('docker-compose.yml'));

5. Error generated:

   Unable to parse the YAML string: Malformed inline YAML string: "'external_url ''http://localhost''" at line 277 (near "GITLAB_OMNIBUS_CONFIG: 'external_url ''http://localhost''").

Additional info:

PFA docker-compose.yml (environment var loaded)
docker-compose.yml.txt

• Parse the docker-compose.yml file along with the environment variables into a PHP or other lang object.
  This will generate error near loading environment variable GITLAB_OMNIBUS_CONFIG

[stale]

Hi 👋 this issue has been automatically marked as stale 📌 because it has not had recent activity 😴. It will be closed if no further activity occurs. Thank you for your contributions ❤️.

[stale]

Hi again 👋 we would like to inform you that this issue has been automatically closed 🔒 because it had not recent activity during the stale period. We really really appreciate your contributions, and looking forward for more in the future 🎈.