start redis-server on debian/ubuntu boot
for some reason the service does not start when i run the container.
here my simplified Dockerfile
FROM debian # this solves an issue described here: # http://askubuntu.com/questions/365911/why-the-services-do-not-start-at-installation RUN sed -i -e s/101/0/g /usr/sbin/policy-rc.d # install redis-server RUN apt-get update && apt-get install -y redis-server # updates init script (redundant) RUN update-rc.d redis-server defaults # ping google to keep the container running in foreground CMD ["ping", "google.com"]
can anybody explain me why this is not working and how this should be done right?
One Solution collect form web for “start redis-server on debian/ubuntu boot”
So a docker container is like a full OS but has some key differences. It’s not going to run a full init system. It’s designed and intended to run a single process tree. While you can run a supervisor such as runit et al within a container, you are really working against the grain of docker and all the tooling and documentation is going to lead you away from using containers like VMs and toward the harmony of 1 process/service per container.
So redis isn’t starting because the
ping command is literally the only process running in your container.
there will be other foreground services running on that other container which will connect to the redis db.
Don’t do it this way. Really. Everything will be easier when you put 1 process in each container and connect them via network links.