Added etcd and etcdv3

Appraisals

@@ -98,6 +98,14 @@ appraise "droplet_kit" do
   gem "faraday"
 end
 
+appraise "etcd" do
+  gem "etcd"
+end
+
+appraise "etcdv3" do
+  gem "etcdv3"
+end
+
 appraise "elasticsearch" do
   gem "elasticsearch"
 end

README.md

@@ -159,6 +159,8 @@ Other
 - [active_shipping](#active_shipping)
 - [carrot2](#carrot2)
 - [docker-api](#docker-api)
+- [etcd](#etcd)
+- [etcdv3](#etcdv3)
 - [fastimage](#fastimage)
 - [geocoder](#geocoder)
 - [graphql-client](#graphql-client)
@@ -1503,6 +1505,34 @@ Connect timeout not configurable
 
 Raises `Docker::Error::TimeoutError`
 
+### etcd
+
+```ruby
+client = Etcd.client(read_timeout: 1)
+```
+
+Connect timeout not configurable
+
+Default: 60s read timeout
+
+Raises
+
+- `Net::ReadTimeout` on read timeout
+
+### etcdv3
+
+```ruby
+Etcdv3.new(command_timeout: 1)
+```
+
+or
+
+```ruby
+conn.get(key, timeout: 1)
+```
+
+Raises `GRPC::DeadlineExceeded`
+
 ### fastimage
 
 ```ruby

gemfiles/etcd.gemfile

@@ -0,0 +1,7 @@
+# This file was generated by Appraisal
+
+source "https://rubygems.org"
+
+gem "appraisal"
+gem "minitest"
+gem "etcd"

gemfiles/etcd.gemfile.lock

@@ -0,0 +1,24 @@
+GEM
+  remote: https://rubygems.org/
+  specs:
+    appraisal (2.3.0)
+      bundler
+      rake
+      thor (>= 0.14.0)
+    etcd (0.3.0)
+      mixlib-log
+    minitest (5.14.1)
+    mixlib-log (3.0.8)
+    rake (13.0.1)
+    thor (1.0.1)
+
+PLATFORMS
+  ruby
+
+DEPENDENCIES
+  appraisal
+  etcd
+  minitest
+
+BUNDLED WITH
+   2.1.4

gemfiles/etcdv3.gemfile

@@ -0,0 +1,7 @@
+# This file was generated by Appraisal
+
+source "https://rubygems.org"
+
+gem "appraisal"
+gem "minitest"
+gem "etcdv3"

gemfiles/etcdv3.gemfile.lock

@@ -0,0 +1,29 @@
+GEM
+  remote: https://rubygems.org/
+  specs:
+    appraisal (2.3.0)
+      bundler
+      rake
+      thor (>= 0.14.0)
+    etcdv3 (0.10.2)
+      grpc (~> 1.17)
+    google-protobuf (3.12.4)
+    googleapis-common-protos-types (1.0.5)
+      google-protobuf (~> 3.11)
+    grpc (1.30.2)
+      google-protobuf (~> 3.12)
+      googleapis-common-protos-types (~> 1.0)
+    minitest (5.14.1)
+    rake (13.0.1)
+    thor (1.0.1)
+
+PLATFORMS
+  ruby
+
+DEPENDENCIES
+  appraisal
+  etcdv3
+  minitest
+
+BUNDLED WITH
+   2.1.4

test/etcd_test.rb

@@ -0,0 +1,19 @@
+require_relative "test_helper"
+
+class EtcdTest < Minitest::Test
+  def test_connect
+    skip "No open timeout"
+
+    client = Etcd.client(host: connect_host, read_timeout: 1)
+    assert_timeout(Net::OpenTimeout) do
+      client.get("/nodes/n1")
+    end
+  end
+
+  def test_read
+    client = Etcd.client(host: read_host, port: read_port, read_timeout: 1)
+    assert_timeout(Net::ReadTimeout) do
+      client.get("/nodes/n1")
+    end
+  end
+end

test/etcdv3_test.rb

@@ -0,0 +1,24 @@
+require_relative "test_helper"
+
+class EtcdTest < Minitest::Test
+  def test_connect
+    conn = Etcdv3.new(endpoints: "http://#{connect_host}:2379", command_timeout: 1)
+    assert_timeout(GRPC::DeadlineExceeded) do
+      conn.get("test")
+    end
+  end
+
+  def test_read
+    conn = Etcdv3.new(endpoints: read_url, command_timeout: 1)
+    assert_timeout(GRPC::DeadlineExceeded) do
+      conn.get("test")
+    end
+  end
+
+  def test_request
+    conn = Etcdv3.new(endpoints: "http://#{connect_host}:2379")
+    assert_timeout(GRPC::DeadlineExceeded) do
+      conn.get("test", timeout: 1)
+    end
+  end
+end