173 lines
6 KiB
Plaintext
173 lines
6 KiB
Plaintext
---
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description: |-
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Consul is a highly available and distributed service discovery and KV
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store designed with support for the modern data center to make distributed
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systems and configuration easy.
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---
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<header>
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<div class="container hero">
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<div class="row">
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<div class="col-md-offset-2 col-md-8">
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<%= inline_svg "logo-hashicorp.svg", height: 120, class: "logo" %>
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<h1>Service Discovery and Configuration Made Easy</h1>
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<a class="button primary" href="/intro/index.html">Get Started</a>
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<a class="button" href="/downloads.html">Download <%= latest_version %></a>
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</div>
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</div>
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</div>
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</header>
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<section id="features" class="marketing pink">
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<div class="container">
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<div class="row">
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<div class="col-md-6">
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<div class="row">
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<div class="col-sm-3 feature-icon">
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<%= inline_svg "feature-discovery.svg", width: 100 %>
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</div>
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<div class="col-sm-9">
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<h2>Service Discovery</h2>
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<p>
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Consul makes it simple for services to register themselves and to
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discover other services via a DNS or HTTP interface. Register external
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services such as SaaS providers as well.
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</p>
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</div>
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</div>
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</div>
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<div class="col-md-6">
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<div class="row">
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<div class="col-sm-3 feature-icon">
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<%= inline_svg "feature-health.svg", width: 100 %>
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</div>
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<div class="col-sm-9">
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<h2>Failure Detection</h2>
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<p>
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Pairing service discovery with health checking prevents routing
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requests to unhealthy hosts and enables services to easily provide
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circuit breakers.
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</p>
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</div>
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</div>
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</div>
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</div>
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<div class="row">
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<div class="col-md-6">
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<div class="row">
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<div class="col-sm-3 feature-icon">
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<%= inline_svg "feature-multi.svg", width: 100 %>
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</div>
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<div class="col-sm-9">
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<h2>Multi Datacenter</h2>
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<p>
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Consul scales to multiple datacenters out of the box with no
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complicated configuration. Look up services in other datacenters, or
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keep the request local.
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</p>
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</div>
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</div>
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</div>
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<div class="col-md-6">
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<div class="row">
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<div class="col-sm-3 feature-icon">
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<%= inline_svg "feature-config.svg", width: 85 %>
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</div>
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<div class="col-sm-9">
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<h2>KV Storage</h2>
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<p>
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Flexible key/value store for dynamic configuration, feature flagging,
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coordination, leader election and more. Long poll for near-instant
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notification of configuration changes.
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</p>
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</div>
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</div>
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</div>
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</div>
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</div>
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</section>
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<section id="simple" class="marketing">
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<div class="container">
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<div class="row">
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<div class="col-md-12">
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<h2>DNS Query Interface</h2>
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<p>
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Look up services using Consul's built-in DNS server. Support
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existing infrastructure without any code change.
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</p>
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</div>
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</div>
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<div class="row">
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<div class="col-md-12">
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<div class="terminal">
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<span class="circle"></span>
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<span class="circle"></span>
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<span class="circle"></span>
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<div class="terminal-content">
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<span><span class="text-pink">admin@hashicorp.com:</span> dig web-frontend.service.consul. ANY</span>
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<span>; <<>> DiG 9.8.3-P1 <<>> web-frontend.service.consul. ANY</span>
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<span>;; global options: +cmd</span>
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<span> </span>
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<span>;; Got answer:</span>
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<span>;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 29981</span>
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<span>;; flags: qr aa rd ra; QUERY: 1, ANSWER: 2, AUTHORITY: 0, ADDITIONAL: 0</span>
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<span> </span>
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<span>;; QUESTION SECTION:</span>
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<span>;web-frontend.service.consul. IN ANY</span>
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<span> </span>
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<span>;; ANSWER SECTION:</span>
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<span>web-frontend.service.consul. 0 IN A <span class="text-pink">10.0.3.83</span></span>
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<span>web-frontend.service.consul. 0 IN A <span class="text-pink">10.0.1.109</span></span>
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</div>
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</div>
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</div>
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</div>
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<div class="row">
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<div class="col-md-12">
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<h2>Key Value Storage</h2>
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<p>
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Consul provides a hierarchical key/value store with a simple HTTP API.
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Managing configuration has never been simpler.
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</p>
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</div>
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</div>
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<div class="row">
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<div class="col-md-12">
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<div class="terminal">
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<span class="circle"></span>
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<span class="circle"></span>
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<span class="circle"></span>
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<div class="terminal-content">
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<span><span class="text-pink">admin@hashicorp:</span> consul kv put foo bar</span>
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<span>Success! Data written to: foo</span>
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<span><span class="text-pink">admin@hashicorp:</span> consul kv get foo</span>
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<span>bar</span>
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<span><span class="text-pink">admin@hashicorp:</span> consul kv get -detailed foo</span>
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<span>CreateIndex 5</span>
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<span>Flags 0</span>
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<span>Key foo</span>
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<span>LockIndex 0</span>
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<span>ModifyIndex 5</span>
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<span>Session -</span>
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<span>Value bar</span>
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<span><span class="text-pink">admin@hashicorp:</span> consul kv delete foo</span>
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<span>Success! Deleted key: foo</span>
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</div>
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</div>
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</div>
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</div>
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</div>
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</section>
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<section id="cta" class="marketing">
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<div class="container">
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<div class="row">
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<a class="button primary" href="/intro/index.html">Read the Introduction</a>
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</div>
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</div>
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</section>
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