La cloud de Google: Kubernetes

Charla introductoria sobre Kubernetes que di en una Docker Meetup en Mendoza, Argentina

Transcript

1. La cloud de Google: Kubernetes Pablo Fredrikson - Lead SRE @ Invision @pablokbs
2. Pablo Fredrikson @pablokbs • Professional Nerd • 12 años con Linux / Open Source • Lead SRE @ Invision
3. docker: básico FROM alpine:3.6 ENV PYTHON_VERSION 3.6.3 RUN set -ex \ && apk add --no-cache --virtual .fetch-deps \ gnupg \ libressl \ tar \ xz \ \ && wget -O python.tar.xz "https://www.python.org/ftp/python/${PYTHON_VERSION}/Python-$PYTHON_VERSION.tar.xz" ... CMD ["python3"]
4. docker: básico $ docker run -it pablokbs/python3 hello-world.py Hello world :)
5. docker: complejo - nginx-proxy $ docker run -d -p 80:80 -v /var/run/docker.sock:/tmp/docker.sock:ro jwilder/nginx-proxy $ docker run -e VIRTUAL_HOST=foo.bar.com pablokbs/myweb
6. docker: complejo - nginx-proxy interwebz nginx-proxy my_app VIRTUAL_HOST= foo.example.com my_other_app VIRTUAL_HOST= bar.example.com foo.example.com docker.d
7. docker: complejo - nginx-proxy $ docker run -d -P 80:80 \ -v /var/run/docker.sock:/tmp/docker.sock:ro \ -v /root/docker/ssl/pablokbs.com/:/etc/nginx/certs/ \ jwilder/nginx-proxy $ docker run -d -p 80:80 \ -e VIRTUAL_HOST=www.pablokbs.com,pablokbs.com \ -e DEBUG=false \ -e ENVIRONMENT=production \ -v /root/docker/web/mycode/:/var/www/pablokbs_code/ \ pablokbs/myweb
8. Solución! docker-compose $ cat docker-compose.yml nginx: image: jwilder/nginx-proxy ports: - "80:80" - "443:443" volumes: - /var/run/docker.sock:/tmp/docker.sock:ro - /root/docker/ssl/pablokbs.com/:/etc/nginx/certs/ myweb: image: pablokbs/myweb expose: - "80" environment: - VIRTUAL_HOST=www.pablokbs.com,pablokbs.com - DEBUG=false - ENVIRONMENT=production
9. Solución! docker-compose $ docker-compose up -d Creating docker_nginx_1 … done docker_web_1 is up-to-date $ docker-compose ps Name Command State Ports ------------------------------------------------------------------------------------------------------- docker_nginx_1 /app/docker-entrypoint.sh Up 0.0.0.0:80 -> 80/tcp docker_web_1 /myapp.sh Up 80 ->80/tcp
10. Solución! docker-compose + +
11. Mascotas vs. Ganado Rambo Alberta, Lucrecia, Susana (?)
12. Borg / Kubernetes https://landing.google.com/sre/book.html
13. Kubernetes en 5 minutos Servicios de cluster de Kubernetes API worker K worker K worker K deployment pod1: - container1 - container2 replicas: 3 pod2: - container3 replicas: 2 p1r1 p2r1 p1r2 p1r3 p2r2
14. Kubernetes en 5 minutos Servicios de cluster de Kubernetes API worker K worker K worker K deployment pod1: - container1 - container2 replicas: 3 pod2: - container3 replicas: 2 p1r1 p2r1 p1r2 p1r3 p2r2 p1r2
15. Demo
16. ¿Preguntas? @pablokbs @InvisionApp