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[BUG] Building a service image fails for service extending a definition from different directory #10798

@stekycz

Description

@stekycz

Description

I am trying to start a service that extends another service in different location when the base service has its build definition with context ./relative-path-to-context.

I am getting the following error.

unable to prepare context: path "./relative-path-to-context" not found

I would expect the path to be resolved relative to the file with base service definitions rather than to the file that extends the base service.

Steps To Reproduce

  1. Prepare a base service
  • ./base/docker-compose.yml
    services:
      foo:
        image: foo
        build: ./foo
  • ./base/foo/Dockerfile
    FROM node:latest
    RUN touch foo.txt
  1. Extend the base service (from a composition file in different location)
  • ./custom/docker-compose.yml
    services:
      foo:
        extends:
          file: ../base/docker-compose.yml
          service: foo
  1. Run docker compose build in ./custom
  2. See the error
unable to prepare context: path "./foo" not found

Compose Version

Docker Compose version v2.19.1

Docker Environment

Client:
 Version:    24.0.2
 Context:    desktop-linux
 Debug Mode: false
 Plugins:
  buildx: Docker Buildx (Docker Inc.)
    Version:  v0.11.0
    Path:     .../.docker/cli-plugins/docker-buildx
  compose: Docker Compose (Docker Inc.)
    Version:  v2.19.1
    Path:     .../.docker/cli-plugins/docker-compose
  dev: Docker Dev Environments (Docker Inc.)
    Version:  v0.1.0
    Path:     .../.docker/cli-plugins/docker-dev
  extension: Manages Docker extensions (Docker Inc.)
    Version:  v0.2.20
    Path:     .../.docker/cli-plugins/docker-extension
  init: Creates Docker-related starter files for your project (Docker Inc.)
    Version:  v0.1.0-beta.6
    Path:     .../.docker/cli-plugins/docker-init
  sbom: View the packaged-based Software Bill Of Materials (SBOM) for an image (Anchore Inc.)
    Version:  0.6.0
    Path:     .../.docker/cli-plugins/docker-sbom
  scan: Docker Scan (Docker Inc.)
    Version:  v0.26.0
    Path:     .../.docker/cli-plugins/docker-scan
  scout: Command line tool for Docker Scout (Docker Inc.)
    Version:  0.16.1
    Path:     .../.docker/cli-plugins/docker-scout

Server:
 Containers: 0
  Running: 0
  Paused: 0
  Stopped: 0
 Images: 8
 Server Version: 24.0.2
 Storage Driver: overlay2
  Backing Filesystem: extfs
  Supports d_type: true
  Using metacopy: false
  Native Overlay Diff: true
  userxattr: false
 Logging Driver: json-file
 Cgroup Driver: cgroupfs
 Cgroup Version: 2
 Plugins:
  Volume: local
  Network: bridge host ipvlan macvlan null overlay
  Log: awslogs fluentd gcplogs gelf journald json-file local logentries splunk syslog
 Swarm: inactive
 Runtimes: io.containerd.runc.v2 runc
 Default Runtime: runc
 Init Binary: docker-init
 containerd version: 3dce8eb055cbb6872793272b4f20ed16117344f8
 runc version: v1.1.7-0-g860f061
 init version: de40ad0
 Security Options:
  seccomp
   Profile: builtin
  cgroupns
 Kernel Version: 5.15.49-linuxkit-pr
 Operating System: Docker Desktop
 OSType: linux
 Architecture: x86_64
 CPUs: 4
 Total Memory: 7.773GiB
 Name: docker-desktop
 ID: bc6a0a07-c70f-4c27-99a5-863c7ee5b8d8
 Docker Root Dir: /var/lib/docker
 Debug Mode: false
 HTTP Proxy: http.docker.internal:3128
 HTTPS Proxy: http.docker.internal:3128
 No Proxy: hubproxy.docker.internal
 Experimental: true
 Insecure Registries:
  hubproxy.docker.internal:5555
  127.0.0.0/8
 Live Restore Enabled: false

Anything else?

I have observed the same behaviour on version 2.19.0 but it worked on version 2.18.1.

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