Dabbling in Docker

Transcript

1. Dabbling in Docker Aidan Feldman January 25, 2016
2. Dabbling in Docker Agenda 1 What Docker does 2 Why it’s useful 3 How to use it 4 Challenges
3. Dabbling in Docker Agenda 1 What Docker does 2 Why it’s useful 3 How to use it 4 Challenges
4. kinda like Vagrant/AMIs 4
5. How it works code 5 docker build Dockerfile image docker run container
6. Dabbling in Docker Agenda 1 What Docker does 2 Why it’s useful 3 How to use it 4 Challenges
7. why it’s useful • specific dependency versions • sandboxing…without a full VM per app • dev-prod parity • “works on my machine” • complex architectures 7
8. Dabbling in Docker Agenda 1 What Docker does 2 Why it’s useful 3 How to use it 4 Challenges
9. How it works code 9 docker build Dockerfile image docker run container
10. Dockerfiles FROM <base image> COPY <source> <destination> ENV <key> <value> WORKDIR <path> RUN <command> EXPOSE <port> CMD <start> 10
11. Building 1. Open Docker Quickstart Terminal 1. `docker-machine ls` 2. `cd <dir>` 3. `docker build -t <imagename> .` 4. `docker images` 11
12. Running • `docker run -p <external>:<internal> <imagename>` • `docker-machine ip default` • `docker ps` 12
13. Examples • JSONP • Node onbuild • Node • C2 (pull request) 13
14. Multiple components • apps • databases • queues • microservices 14
15. JSONProxy example 15
16. Dabbling in Docker Agenda 1 What Docker does 2 Why it’s useful 3 How to use it 4 Challenges
17. Challenges • Development workflow • Compose not production-ready yet • Another Thing • Persistence • Secrets 17
18. Thanks! Aidan Feldman