Docker Compose Command-Wrapper (DCC)

The docker compose command wrapper is a shortcut for the command docker compose. On top of that it supports using different docker-compose.yml files depending on the DCC_ENV variable.

It will wrap the docker compose command like this:

docker compose -f docker-compose.yml -f docker-compose.${DCC_ENV}.yml $@

$@: these are all additional parameters you provide the dcc command. For example, assuming the DCC_ENV variable is dev, if you type

dcc up -d

the following command will be executed:

docker compose -f docker-compose.yml -f docker-compose.dev.yml up -d

You can use all docker compose command line arguments documented in the official documentation, except the special commands described below.

It also reads the .env file every time the command is run and, if you are working in a git repository, it sets some git related environment variables such as

• GIT_VERSION=$(git describe --always)
• GIT_BRANCH=$(git rev-parse --abbrev-ref HEAD
• GIT_LASTCOMMITDATE=$(git log -1 --format=%cI)
• GIT_COMMITHASH=$(git rev-parse HEAD)

Special commands

To shorthand often used commands the following shorthands are available:

• ls: lists all containers on the system with their status
• rm: removes all containers on the system
• lg: follow log files
• po: lists the exposed ports of all running containers
• net: show the network infrastructure
• rp: lists the restart policy of all containers
• mt: show mounts
• vol: show volumes
• volbkp: backup a docker volume to tar.gz
• sh: opens an interactive shell (bash) at a certain container
• clean: cleans the docker environment
• --help or any docker compose command: https://docs.docker.com/compose/reference/

Installation

curl -Ls https://raw.githubusercontent.com/ETH-NEXUS/dcc/main/setup.sh | bash

dcc will be installed to ~/.local/bin. Make sure ~/.local/bin is in your PATH.

Troubleshooting

If you encounter the following error...

dcc: error while loading shared libraries: libz.so.1: failed to map segment from shared object

...you can solve it using...

sudo mount /tmp -o remount,exec