Higher Order Infrastructure - Microservices on the Docker Swarm

on YouTube ↗36m

" summary

A polyglot voting app is built and deployed across five DigitalOcean hosts provisioned with Docker Machine, using Docker Swarm for cluster management and Consul for discovery. Services: Python vote API (writes to Redis), Java worker (moves votes to PostgreSQL), Node.js results UI; nginx-proxy detects containers with VIRTUAL_HOST from a single docker-compose.yml and updates routes. Labels constrain placement so DB lands on a DB node and web on service nodes. Scaling adds a new service node and spins up four more result containers; routing and logs update and the demo works.

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" chapters (10)

1. 0:00Introduction
2. 1:17Docker brought to the average software developer
3. 3:13The advent of the Docker orchestration ecosystem
4. 7:25Components of the orchestration puzzle
5. 13:11Creating a machine part of the Swarm
6. 16:55In Digital Ocean UI
7. 17:26Swarm comes with strategies and filters
8. 20:05docker-compose.yml a declarative way to define services
9. 23:00Setting up the Reverse Proxy
10. 31:08Docker orchestration ecosystem has greatly matured

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