I'm currently learning Docker, and have made a nice and simple Docker Compose setup. 3 containers, all with their own Dockerfile setup. How could I go about converting this to work on CoreOS so I can setup up a cluster later on?
web:
build: ./app
ports:
- "3030:3000"
links:
- "redis"
newrelic:
build: ./newrelic
links:
- "redis"
redis:
build: ./redis
ports:
- "6379:6379"
volumes:
- /data/redis:/data
taken from https://docs.docker.com/compose/install/
the only thing is that /usr is read only, but /opt/bin is writable and in the path, so:
sd-xx~ # mkdir /opt/
sd-xx~ # mkdir /opt/bin
sd-xx~ # curl -L https://github.com/docker/compose/releases/download/1.3.3/docker-compose-`uname -s`-`uname -m` > /opt/bin/docker-compose
% Total % Received % Xferd Average Speed Time Time Time Current
Dload Upload Total Spent Left Speed
100 403 0 403 0 0 1076 0 --:--:-- --:--:-- --:--:-- 1080
100 7990k 100 7990k 0 0 2137k 0 0:00:03 0:00:03 --:--:-- 3176k
sd-xx~ # chmod +x /opt/bin/docker-compose
sd-xx~ # docker-compose
Define and run multi-container applications with Docker.
Usage:
docker-compose [options] [COMMAND] [ARGS...]
docker-compose -h|--help
Options:
-f, --file FILE Specify an alternate compose file (default: docker-compose.yml)
-p, --project-name NAME Specify an alternate project name (default: directory name)
--verbose Show more output
-v, --version Print version and exit
Commands:
build Build or rebuild services
help Get help on a command
kill Kill containers
logs View output from containers
port Print the public port for a port binding
ps List containers
pull Pulls service images
restart Restart services
rm Remove stopped containers
run Run a one-off command
scale Set number of containers for a service
start Start services
stop Stop services
up Create and start containers
migrate-to-labels Recreate containers to add labels