sup

Stack Up

Stack Up is a simple deployment tool that performs given set of commands on multiple hosts in parallel. It reads Supfile, a YAML configuration file, which defines networks (groups of hosts), commands and targets.

Demo

Demo using the following Supfile:

Installation

$ go get -u github.com/pressly/sup/cmd/sup

Usage

$ sup [OPTIONS] NETWORK TARGET/COMMAND [...]

Options

Network

A group of hosts on which COMMAND will be invoked in parallel.

# Supfile

networks:
    production:
        hosts:
            - api1.example.com
            - api2.example.com
            - api3.example.com
    staging:
        hosts:
            - stg1.example.com

$ sup production COMMAND will invoke COMMAND on all production hosts in parallel.

$ sup staging TARGET will invoke TARGET on the staging host.

Target

An alias to run multiple COMMANDS.

# Supfile

targets:
    deploy:
        - build
        - pull
        - migrate-db-up
        - stop-rm-run
        - health
        - slack-notify
        - airbrake-notify

$ sup production deploy will invoke build, pull, migrate-db-up, stop-rm-run and slack-notify commands sequentially on all production hosts.

Command

A shell command (or set of commands) to be run remotely.

# Supfile

commands:
    restart:
        desc: Restart example Docker container
        run: sudo docker restart example
    tail-logs:
        desc: Watch tail of Docker logs from all hosts
        run: sudo docker logs --tail=20 -f example
    exec:
        desc: Exec into Docker container on all hosts
        stdin: true
        run: sudo docker exec -i example bash
    bash:
        desc: Interactive Bash on all hosts
        stdin: true
        run: bash

$ sup production restart will restart all production example Docker containers in parallel.

$ sup production tail-logs will tail Docker logs from all production example containers in parallel.

$ sup production exec will Docker Exec into all production Docker containers and run interactive shell.

$ sup production bash will run interactive shell on all production hosts.

Supfile

See example Supfile.

Basic structure

# Supfile
---
version: 0.3

# Global environment variables
env:
  NAME: api
  IMAGE: example/api

networks:
  local:
    hosts:
      - localhost
  staging:
    hosts:
      - stg1.example.com
  production:
    hosts:
      - api1.example.com
      - api2.example.com

commands:
  echo:
    desc: Print some env vars
    run: echo $NAME $IMAGE $SUP_NETWORK
  date:
    desc: Print OS name and current date/time
    run: uname -a; date

targets:
  all:
    - echo
    - date

Default environment variables

• $SUP_NETWORK - Name of the NETWORK that the command was originally issued against.
• $SUP_USER - Name of user who issued the command.
• $SUP_TIME - Date and time of the original command line invocation.

Development

fork it..

$ make tools
$ make build

License

Licensed under the MIT License.