Bash helper script to automate docker-compose.yml file detection

dcp.sh

#!/usr/bin/env bash
#
# Use as a drop-in replacement for docker-compose that will automatically find your docker-compose.yml file.
# Author : Vincent Paré

function dcp {
    local candidates=()
    
    if [ -n "$DCP_COMPOSE" ]; then
        candidates+=("$DCP_COMPOSE")
    fi
    
    if [ -f ".dcp" ]; then
        candidates+=("$(cat .dcp)")
    fi
    
    candidates+=(
        docker-compose.yml
        docker-compose.yml.dist
        docker*/docker-compose.yml
        docker*/docker-compose.yml.dist
    )
    
    local candidate
    for candidate in "${candidates[@]}"; do
        if [ -f "$candidate" ]; then
            local composeFile=$candidate
            break
        fi
    done
    
    if [ -z "$composeFile" ]; then
        >&2 echo "Didn't find any docker compose file"
        return 1
    fi
    
    >&2 echo "Using $(ls -1 "$composeFile")"
    docker-compose -f "$composeFile" "$@"
}

dcp "$@"

zREADME.md

Use this to avoid to explicitly provide the compose file location to docker-compose if you don't use the default (./docker-compose.yml). This tool search for a docker compose file at predefined locations, or using the DCP_COMPOSE or the .dcp file in the working directory. It can also be used as a lazy/short alias for docker-compose.

You can use it either as a function by putting it into ~/.bashrc, or as a shell script.

Install

curl -Lo /usr/local/bin/dcp https://gist.github.com/vincepare/fb6aeb4f99ff19b474c00f4e61699113/raw/dcp.sh && chmod +x /usr/local/bin/dcp

OR :

wget -O /usr/local/bin/dcp https://gist.github.com/vincepare/fb6aeb4f99ff19b474c00f4e61699113/raw/dcp.sh && chmod +x /usr/local/bin/dcp

Example

Start a docker app :

dcp up -d

Stop a docker app :

dcp stop