Docker returns "json: cannot unmarshal string into Go value of type []string"

Question

I'm new to docker. I tried to launch an image with:

fig up -d --allow-insecure-ssl

But I get the following error message:

json: cannot unmarshal string into Go value of type []string

And I can't figure out how to fix it.

My fig.yml:

configrepo:
  image: docker-registry.backbasecloud.com/backbase/engage-configuration:latest
  environment:
    - SERVICE_NAME=configuration
  ports:
      - "8788:8080"

configserver:
  image: docker-registry.backbasecloud.com/backbase/engage-configserver:latest
  environment:
    SERVICE_NAME: configserver
  ports:
    - "8888:8888"
  links:
    - configrepo:configrepo
  dns: 172.17.42.1

docker version

Client version: 1.6.2
Client API version: 1.18
Go version (client): go1.4.2
Git commit (client): 7c8fca2
OS/Arch (client): darwin/amd64
Server version: 1.8.2
Server API version: 1.20
Go version (server): go1.4.2
Git commit (server): 0a8c2e3
OS/Arch (server): linux/amd64

fig --version

fig 1.0.1

Any ideas why I'm getting this error?

Answer 1

First, fig has long been migrated to docker compose.
Second, docker 1.6.2 is not the newest release of docker.

So before chasing that bug too much (in light of issues like 1638):

• update to docker compose and docker 1.8.2
• check your entrypoint in your docker-compose.yml: true should be /bin/true for instance.