Question 341393 in Docker Question posted in
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docker compose build: failed to solve: changes out of order

dockerfile

FROM openjdk:alpine
ARG JAR_FILE=target/*.jar
COPY ./target/diplomAPI-0.0.1-SNAPSHOT.jar app.jar

ENTRYPOINT ["java", "-jar", "/app.jar"]

docker-compose.yml

version: '3'
services:
  app:
    build:
      context: .
      dockerfile: Dockerfile
    ports:
      - "8080:8080"
    depends_on:
      - db
  db:
    image: postgres
    restart: always
    ports:
      - "5432:5432"
    environment:
      POSTGRES_DB: mobilka
      POSTGRES_USER: postgres
      POSTGRES_PASSWORD: 12345

error code:

PS C:UsersextreIdeaProjectsdiplomAPI> docker-compose build
[+] Building 0.0s (0/0)  docker:default
[+] Building 0.0s (0/0)  docker:defaultr reading preface from client //./pipe/docker_engine: file has already been closed
[+] Building 2.2s (6/7)                                                                                                                                                                                              docker:default
 => [app internal] load build definition from Dockerfile                                                                                                                                                                       0.0s
 => => transferring dockerfile: 180B                                                                                                                                                                                           0.0s 
 => [app internal] load metadata for docker.io/library/openjdk:alpine                                                                                                                                                          2.0s 
 => [app auth] library/openjdk:pull token for registry-1.docker.io                                                                                                                                                             0.0s
 => [app internal] load .dockerignore                                                                                                                                                                                          0.0s
 => => transferring context: 2B                                                                                                                                                                                                0.0s 
 => ERROR [app internal] load build context                                                                                                                                                                                    0.0s 
 => => transferring context: 57B                                                                                                                                                                                               0.0s 
 => [app 1/2] FROM docker.io/library/openjdk:alpine@sha256:1fd5a77d82536c88486e526da26ae79b6cd8a14006eb3da3a25eb8d2d682ccd6                                                                                                    0.0s 
------
 > [app internal] load build context:
------
failed to solve: changes out of order: "target/diplomAPI-0.0.1-SNAPSHOT.jar" ""

The Dockerfile and docker-compose.yml files are in the same folder. The file diplomAPI-0.0.1-SNAPSHOT.jar actually exists and is located in the specified folder.

I attempted deleting a line ARG JAR_FILE=target/*.jar without any improvement.

I attempted to put the Dockerfile and docker-compose.yml in a separate folders and specified this path as the context without any improvement.

Tags:

2

Answers


  1. 0

    The error you’re encountering is due to the inability to find the diplomAPI-0.0.1-SNAPSHOT.jar file during the Docker build process. Here’s a simplified version of your Dockerfile that directly copies the JAR file into the container:

    FROM openjdk:alpine

COPY ./target/diplomAPI-0.0.1-SNAPSHOT.jar /app.jar

ENTRYPOINT ["java", "-jar", "/app.jar"]

    Ensure that the diplomAPI-0.0.1-SNAPSHOT.jar file exists in the target directory relative to your Dockerfile and docker-compose.yml file.

    If the JAR file exists in a different directory, adjust the path accordingly in the COPY command.

    Then, try building your Docker image again using docker-compose build.

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  2. 0

    The failed to solve: changes out of order error message is a bug in docker compose running in Docker Desktop.

    According to the issue, this is resolved by upgrading our downgrading Docker Desktop to a version other than 4.27.1. You could also build with docker build directly, or attempt to disable buildkit with DOCKER_BUILDKIT=0 docker compose build.

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