`docker compose run -e FOO` does not set FOO

[jamshid]

Description

docker compose run is not compatible with docker run and docker-compose run in passing the value of an exported environment variable with plain -e FOO. It requires the variable be set explicitly like -e FOO=${FOO}.

Steps to reproduce the issue:

1. Using following docker-compose.yml:

services:
  test:
    image: alpine
    command: env

2. See docker compose behave differently from docker-compose:

% export FOO=foo

% docker compose run -e FOO test       
PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin
HOSTNAME=50098a50e8f7
TERM=xterm
HOME=/root

% docker-compose run -e FOO test
Creating simple_test_run ... done
PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin
HOSTNAME=52b3e29bb74d
TERM=xterm
FOO=foo
HOME=/root

Describe the results you received:

above
Describe the results you expected:
above

Output of docker version:

Client: Docker Engine - Community
 Cloud integration: 1.0.12
 Version:           20.10.5
 API version:       1.41
 Go version:        go1.13.15
 Git commit:        55c4c88
 Built:             Tue Mar  2 20:13:00 2021
 OS/Arch:           darwin/amd64
 Context:           default
 Experimental:      true

Server: Docker Engine - Community
 Engine:
  Version:          20.10.5
  API version:      1.41 (minimum version 1.12)
  Go version:       go1.13.15
  Git commit:       363e9a8
  Built:            Tue Mar  2 20:15:47 2021
  OS/Arch:          linux/amd64
  Experimental:     true
 containerd:
  Version:          1.4.4
  GitCommit:        05f951a3781f4f2c1911b05e61c160e9c30eaa8e
 runc:
  Version:          1.0.0-rc93
  GitCommit:        12644e614e25b05da6fd08a38ffa0cfe1903fdec
 docker-init:
  Version:          0.19.0
  GitCommit:        de40ad0
 Kubernetes:
  Version:          Unknown
  StackAPI:         Unknown

Output of docker info:

Client:
 Context:    default
 Debug Mode: false
 Plugins:
  app: Docker App (Docker Inc., v0.9.1-beta3)
  buildx: Build with BuildKit (Docker Inc., v0.5.1-docker)
  scan: Docker Scan (Docker Inc., v0.6.0)

Server:
 Containers: 41
  Running: 28
  Paused: 0
  Stopped: 13
 Images: 187
 Server Version: 20.10.5
 Storage Driver: overlay2
  Backing Filesystem: extfs
  Supports d_type: true
  Native Overlay Diff: true
 Logging Driver: json-file
 Cgroup Driver: cgroupfs
 Cgroup Version: 1
 Plugins:
  Volume: local
  Network: bridge host ipvlan macvlan null overlay weaveworks/net-plugin:latest_release
  Log: awslogs fluentd gcplogs gelf journald json-file local logentries splunk syslog
 Swarm: active
  NodeID: tc29os4as78dj8equuf69ziv5
  Is Manager: true
  ClusterID: qm7qjt5ky6wf24930sb9slgo7
  Managers: 1
  Nodes: 1
  Default Address Pool: 10.0.0.0/8  
  SubnetSize: 24
  Data Path Port: 4789
  Orchestration:
   Task History Retention Limit: 5
  Raft:
   Snapshot Interval: 10000
   Number of Old Snapshots to Retain: 0
   Heartbeat Tick: 1
   Election Tick: 10
  Dispatcher:
   Heartbeat Period: 5 seconds
  CA Configuration:
   Expiry Duration: 3 months
   Force Rotate: 0
  Autolock Managers: false
  Root Rotation In Progress: false
  Node Address: 192.168.65.3
  Manager Addresses:
   192.168.65.3:2377
 Runtimes: runc io.containerd.runc.v2 io.containerd.runtime.v1.linux
 Default Runtime: runc
 Init Binary: docker-init
 containerd version: 05f951a3781f4f2c1911b05e61c160e9c30eaa8e
 runc version: 12644e614e25b05da6fd08a38ffa0cfe1903fdec
 init version: de40ad0
 Security Options:
  seccomp
   Profile: default
 Kernel Version: 5.10.25-linuxkit
 Operating System: Docker Desktop
 OSType: linux
 Architecture: x86_64
 CPUs: 8
 Total Memory: 37.22GiB
 Name: docker-desktop
 ID: IRQM:32WY:Q75C:LM2N:74ES:Q6HH:6NZK:5UBS:XFXD:LNCB:CUHX:Q533
 Docker Root Dir: /var/lib/docker
 Debug Mode: true
  File Descriptors: 286
  Goroutines: 340
  System Time: 2021-04-16T02:15:35.489285797Z
  EventsListeners: 3
 HTTP Proxy: http.docker.internal:3128
 HTTPS Proxy: http.docker.internal:3128
 Registry: https://index.docker.io/v1/
 Labels:
 Experimental: true
 Insecure Registries:

Additional environment details (AWS ECS, Azure ACI, local, etc.):
latest Docker for Mac 3.3.0