Liquibase update fails inside docker compose

I'm trying to set up a postgres db in docker container updated by liquibase, but run into strange errors.

Here is the docker compose:

version: '3.8'

services:
  db:
    image: postgres:15-alpine
    container_name: transactions-db
    environment:
      POSTGRES_USER: root
      POSTGRES_PASSWORD: root
      POSTGRES_DB: transactions
    ports:
      - "5432:5432"
    volumes:
      - postgres-data:/var/lib/postgresql/data

  liquibase:
    container_name: liquibase-container
    image: liquibase/liquibase
    command: update
    environment:
      LIQUIBASE_COMMAND_CHANGELOG_FILE: /liquibase/db.changelog/migrations.yml
      LIQUIBASE_COMMAND_DRIVER: org.postgresql.Driver
      LIQUIBASE_COMMAND_URL: jdbc:postgresql://host.docker.internal:5432/transactions
      LIQUIBASE_COMMAND_USERNAME: root
      LIQUIBASE_COMMAND_PASSWORD: root
      LIQUIBASE_COMMAND_DEFAULT_SCHEMA_NAME: public
      LIQUIBASE_SEARCH_PATH: /liquibase
    volumes:
      - ./src/main/resources/db.changelog:/liquibase/db.changelog

volumes:
  postgres-data:

And here is the error:

ERROR: Exception Details
liquibase-container  | ERROR: Exception Primary Class:  ChangeLogParseException
liquibase-container  | ERROR: Exception Primary Reason:  /liquibase/db.changelog/migrations.yml does not exist
liquibase-container  | ERROR: Exception Primary Source:  4.32.0
liquibase-container  | 
liquibase-container  | Unexpected error running Liquibase: /liquibase/db.changelog/migrations.yml does not exist

I do have migrations.yml as well as some SQL files it refers to present in src/main/resources/db.changelog thats why I'm mounting the volume

I also tried mounting a single file migrations.yml ending same error

According to the Liquibase documentation for Docker the volume in the Liquibase image for mounting your local changelog directory is /liquibase/changelog and not /liquibase/db.changelog but when I tried setting that I still got the same error.

After looking through DEBUG logs I noticed it is expecting LIQUIBASE_COMMAND_CHANGELOG_FILE to be a relative path to the changelog file from the /liquibase directory on the container.

When I set LIQUIBASE_COMMAND_CHANGELOG_FILE: changelog/migrations.yml the update executed as expected. My working config is below

services:
  db:
    image: postgres:15-alpine
    container_name: transactions-db
    environment:
      POSTGRES_USER: root
      POSTGRES_PASSWORD: root
      POSTGRES_DB: transactions
    ports:
      - "5432:5432"
    volumes:
      - postgres-data:/var/lib/postgresql/data

  liquibase:
    container_name: liquibase-container
    image: liquibase/liquibase
    command: update
    environment:
      LIQUIBASE_COMMAND_CHANGELOG_FILE: changelog/migrations.yml
      LIQUIBASE_COMMAND_DRIVER: org.postgresql.Driver
      LIQUIBASE_COMMAND_URL: jdbc:postgresql://host.docker.internal:5432/transactions
      LIQUIBASE_COMMAND_USERNAME: root
      LIQUIBASE_COMMAND_PASSWORD: root
      LIQUIBASE_COMMAND_DEFAULT_SCHEMA_NAME: public
      LIQUIBASE_LOG_LEVEL: DEBUG
    volumes:
      - ./src/main/resources/db.changelog/:/liquibase/changelog/

volumes:
  postgres-data: