Microservices and Container Management with NGINX Plus and Mesosphere DC/OS

Microservices and Container Management with NGINX Plus and Mesosphere DC/OSApril 20, 2016

MORE INFORMATION AT NGINX.COM

Christopher StetsonChief Architect,Professional Services NGINX

Ben HorowitzTechnical Architect,Professional Services NGINX


Agenda

• NGINX Microservices Reference Architecture• Mesosphere DC/OS

• Docker Image CI/CD• Developer UI• Robust Networking Options

• Warts & All• Conclusion


NGINX Microservices

Reference Architecture


NGINX = Microservices


Microservices Architecture• Docker containers• Polyglot services• 12-Factor App(-esque)

design

IMAGE TK – ANDY CREATING


Value of MSA

• Provide customers with a microservices blueprint

• Test out NGINX and NGINX Plus features for microservices

• Understand the microservices ecosystem


Mesosphere DC/OS


Docker Image CI/CD


Typical CI/CD• Developers submit code

to the Version Control System (VCS)

• Continuous integration (CI) server grabs code, builds, tests, and deploys

• Critical process for microservices


Bake vs. Fry• Bake: create a durable

artifact that is deployed throughout system

• Fry: build artifact as needed for each environment

• Docker images could be ultimate baked good


Docker Image CI/CD• Commit to VCS• CI/CD creates image and

deploys to repo• Tests are conducted

against image


DC/OS Repo Support• Most systems only

support public repo (DockerHub)

• Include repo credentials in app definition JSON file

• forcePullImage to avoid local image caching

"container": { "type": "DOCKER", "docker": { "image": "docker.io/<docker-image>", "forcePullImage": true, "network": "BRIDGE", "portMappings": [ { "containerPort": 443, "hostPort": 0, "protocol": "tcp" } ]

} }, "uris": [ "https://s3.amazonaws.com/docker_credentials.gz" ]}


Robust UI/UX


Developer’s Swiss Army Knife

• Nice web UI• Solid CLI• Robust API


Beauty Is More than Skin-Deep• Overview of system• Monitoring of apps• Configuration and

management


Not Just A Pretty Face• The CLI is a critical piece

of software• How you manage and

deploy your apps• Monitoring features


API to Do Even More• API provides all data and

capabilities of Marathon• Mesos also has an API

for more fundamental actions

• Fully scriptable system


Robust Networking

Options


DC/OS Unopinionated


Proxy Model• Simple networking model• Good for flat APIs or

simple apps• Round-robin DNS

interservice connection


Router Mesh Model• NGINX Plus as the proxy • NGINX Plus running on

hosts and providing intraservice connectivity

• Intelligent load balancing with active health checks


Fabric Model• NGINX Plus running in

each container• DNS service discovery• Persistent SSL/TLS

connections• Health checks provide

circuit-breaker pattern


Warts & All


Not All Cookies and Cream• Cached Docker images• Confusing nomenclature• Useful features not

implemented in UI − for example, logging


Conclusion

Microservices and Container Management with NGINX Plus and Mesosphere DC/OS

Software

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