Mesos + Consul = Developer Happiness (JUG)

Talk given to the Chicago Java User Group on March 15, 2016

Transcript

1. Mesos + Consul Developer Happiness 1 — Chicago JUG, March 15 2016
2. Hello I'm Brian Hicks I do computer stuff brian@aster.is // @brianhicks 2 — Chicago JUG, March 15 2016
3. 3 — Chicago JUG, March 15 2016
4. Demo 4 — Chicago JUG, March 15 2016
5. Service discovery and configuration made easy. Distributed, highly available, and datacenter- aware. — consul.io 5 — Chicago JUG, March 15 2016
6. Services (and DNS) 6 — Chicago JUG, March 15 2016
7. Query a Service Over HTTP $ curl localhost:8500/v1/catalog/service/marathon [{ "Address": "10.0.113.214", "Node": "batman-control-01", "ServiceAddress": "", "ServiceID": "marathon", "ServiceName": "marathon", "ServicePort": 18080, "ServiceTags": ["marathon"] }] 7 — Chicago JUG, March 15 2016
8. DNS $ dig +short www.google.com 216.58.216.206 8 — Chicago JUG, March 15 2016
9. SRV Records $ dig +short marathon.service.consul 10.0.113.214 10.0.220.54 10.0.131.25 $ dig +short marathon.service.consul SRV 1 1 18080 batman-control-02.node.batman.consul 1 1 18080 batman-control-03.node.batman.consul 1 1 18080 batman-control-01.node.batman.consul 9 — Chicago JUG, March 15 2016
10. Service Definition { "name": "marathon", "tags": [ "marathon", "dc-ord" ], "port": 18080, "check": { "script": "curl http://127.0.0.1:18080/ping", "interval": "10s" } } 10 — Chicago JUG, March 15 2016
11. Registering the Service $ curl http://localhost:8500/v1/agent/service/register \ -d @marathon.json 11 — Chicago JUG, March 15 2016
12. Q&A 12 — Chicago JUG, March 15 2016
13. K/V Store (AKA configuration) 13 — Chicago JUG, March 15 2016
14. Getting and Setting $ curl -X PUT -d world http://localhost:8500/v1/kv/hello true $ curl -X GET http://localhost:8500/v1/kv/hello [{ "CreateIndex": 223, "Flags": 0, "Key": "hello", "LockIndex": 0, "ModifyIndex": 223, "Value": "d29ybGQ=" }] 14 — Chicago JUG, March 15 2016
15. Check and Set $ curl -X PUT -d chicago http://localhost:8500/v1/kv/hello?cas=223 true $ curl -X PUT -d world http://localhost:8500/v1/kv/hello?cas=1 false 15 — Chicago JUG, March 15 2016
16. Watches HTTP/1.1 200 OK Content-Type: application/json X-Consul-Index: 226 X-Consul-Knownleader: true X-Consul-Lastcontact: 0 Date: Tue, 15 Mar 2016 16:24:45 GMT Content-Length: 96 $ curl http://localhost:8500/v1/kv/hello?index=226 16 — Chicago JUG, March 15 2016
17. Consul-Template This project provides a convenient way to populate values from Consul into the filesystem using the consul-template daemon. — github.com/hashicorp/consul-template 17 — Chicago JUG, March 15 2016
18. Haproxy Template global maxconn {{or (key "service/haproxy/maxconn") 256}} debug defaults mode http timeout connect {{or (key "service/haproxy/timeouts/connect") "5000ms"}} timeout client {{or (key "service/haproxy/timeouts/client") "50000ms"}} timeout server {{or (key "service/haproxy/timeouts/server") "50000ms"}} {{range services}} frontend {{.Name}} bind *:{{key (printf "ports/%s" .Name)}} {{range service .Name}} server {{.Node}} {{.Address}}:{{.Port}}{{end}} {{end}} 18 — Chicago JUG, March 15 2016
19. Q&A 19 — Chicago JUG, March 15 2016
20. Mantl’s ethos is to focus a community around an end to end solution, not around an individual component; designed to solve business and team challenges, one glue, improved by the community, tested everywhere. — mantl.io 20 — Chicago JUG, March 15 2016
21. Thank You! 21 — Chicago JUG, March 15 2016
22. Colophon → White Rabbit by Houser Wolf Licensed CC BY-ND 2.0 → Eggs. Plenty of them. by Alex Barth Licensed CC BY 2.0 → I got that feeling by Josep Ma. Rosell Licensed CC BY 2.0 22 — Chicago JUG, March 15 2016