Docker is an open-source project to easily create lightweight, portable, self-sufficient containers from any application.
0
votes
0answers
75 views
Why should I use a Dockerfile instead of a batch script?
I'm new to Docker and feeling my way around. My plan is to build a typical web app using Nginx+Rails+Postgress, all of which will be in the one container. I'm not (currently) doing anything complex ...
1
vote
0answers
60 views
Should mongoDB be run in a cluster?
I'm trying to implement an architecture that's similar to the coreos's production architecture (shown below)
Should I run the database as a central service or one or more of the workers?
I figured ...
0
votes
1answer
25 views
When deploying a production app using docker, should I still use volumes or should I use add in the dockerfile?
I've been working on this little rails app with docker for a while and I'm finally ready to move it into production but I'm not sure what the best practice is for deploying a Docker app.
When ...
2
votes
1answer
63 views
Library OSes vs Unikernels
My understanding of a Hypervisor & Virtual Machines is that the hypervisor is a program (either running on top of a host OS, or running bare metal as the host) that leverages binary-compatible ...
1
vote
2answers
108 views
Virtual machines versus containers, what use cases are suited to each? [closed]
I hear a fair amount of people using Docker these days, and I am wondering where they execl compared to virtual machines, and when a virtual machine would be a more suitable choice.
4
votes
2answers
2k views
docker-izing a classical db-based webapp - single or multiple containers?
I have a classic Java webapp. It is composed of a database (PostgreSQL), a servlet container (Tomcat) and my code (deployed on Tomcat as a *.war file).
I want to package/deploy it using Docker ...
4
votes
1answer
242 views
Continuous Integration using Docker
One of the main advantages of Docker is the isolated environment it brings, and I want to leverage that advantage in my continuous integration workflow.
A "normal" CI workflow goes something like ...
7
votes
1answer
474 views
Doesn't dockerfile initial configuration defeat one of the key arguments of docker?
I'm very excited about Docker, if you're a developer in a big project you've suffered too much at the machine hands of environments and multi-platforms.
One of the key selling points of Docker is ...
