Bridging Past, Present, and Future infrastructure with Consul

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Bridging Past, Present, and Future Infrastructure with Consul https://unsplash.com/photos/-a4tzI2fNW8 Photo by Rita Morais

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@anubhavm Anubhav Mishra Developer Advocate, HashiCorp

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@anubhavm Anubhav Mishra Developer Advocate, HashiCorp has stickers

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PROVISION, SECURE AND RUN ANY INFRASTRUCTURE Nomad Consul Vault Vagrant Packer Terraform Consul Enterprise Terraform Enterprise Vault Enterprise PRODUCT SUITE OSS TOOL SUITE RUN Applications SECURE Application Infrastructure PROVISION Infrastructure FOR INDIVIDUALS FOR TEAMS Nomad Enterprise

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Why?

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-/+ Change

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SERVER MONOLITHIC APP DATABASE CACHE

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SERVER MONOLITHIC APP DATABASE CACHE www.webscale.com yoda.webscale.com cache1.webscale.com randomtest1.webscale.com

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SERVER MONOLITHIC APP DATABASE CACHE CACHE CACHE SERVER SERVER MONOLITHIC APP MONOLITHIC APP SERVER MONOLITHIC APP

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SERVER MONOLITHIC APP DATABASE CACHE

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SERVER MICROSERVICE DATABASE MONOLITHIC APP

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SERVER MICROSERVICES DATABASES CLUSTER MANAGER MONOLITHIC APP

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SERVER MICROSERVICES DATABASES CLUSTER MANAGER www.webscale.com yoda.webscale.com app-xww123.webscale.com db-analyticsx123.webscale.com MONOLITHIC APP

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Copyright © 2017 HashiCorp @anubhavm  -/+ Change !19 Abstractions Datacenters Physical/Virtual machines Servers IP addresses, DNS Monolithic applications Platform Containers Services Service discovery Microservices

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Challenges Service Discovery Common Interface Runtime Conﬁguration

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Copyright © 2017 HashiCorp @anubhavm  Consul Cluster !34 CLIENT CLIENT CLIENT CLIENT CLIENT CLIENT SERVER SERVER SERVER REPLICATION REPLICATION RPC RPC LAN GOSSIP SERVER SERVER SERVER REPLICATION REPLICATION WAN GOSSIP

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Copyright © 2017 HashiCorp Terminal !45 Via DNS Discovery $ dig backend.service.consul # ... ;; QUESTION SECTION: ;backend.service.consul. IN A ;; ANSWER SECTION: backend.service.consul.0 IN A 10.0.5.69 backend.service.consul.0 IN A 10.0.5.34 backend.service.consul.0 IN A 10.0.5.138

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Copyright © 2017 HashiCorp Terminal !46 Via DNS Load Balancing $ dig backend.service.consul # ... ;; QUESTION SECTION: ;backend.service.consul. IN A ;; ANSWER SECTION: backend.service.consul.0 IN A 10.0.5.69 backend.service.consul.0 IN A 10.0.5.34 backend.service.consul.0 IN A 10.0.5.138

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Copyright © 2017 HashiCorp Terminal !47 Via DNS Load Balancing $ dig backend.service.consul # ... ;; QUESTION SECTION: ;backend.service.consul. IN A ;; ANSWER SECTION: backend.service.consul.0 IN A 10.0.5.69 backend.service.consul.0 IN A 10.0.5.138 backend.service.consul.0 IN A 10.0.5.34

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Copyright © 2017 HashiCorp Terminal !48 Via HTTP Discovery $ curl http://localhost:8500/v1/health/service/backend [ { "Node": { "ID": "071d5055-6afa-c457-1194-1a070d15e35f", "Node": "abd28dac", "Address": "10.0.5.52", "Datacenter": "dc1", }, "Service": { "ID": "backend-01", "Service": "backend", "Port": 80, }, # ... } ]

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Copyright © 2017 HashiCorp Terminal !53 Via HTTP Key-Value Store $ curl http://localhost:8500/v1/kv/hello [ { "LockIndex": 0, "Key": "hello", "Flags": 0, "Value": "d29ybGQ=", "CreateIndex": 7, "ModifyIndex": 7 } ]