Add specs for the new functionalitydocker

Signed-off-by: Tim Smith <tsmith@chef.io>

3 files changed, 120 insertions, 0 deletions

diff --git a/spec/unit/plugins/darwin/virtualization_spec.rb b/spec/unit/plugins/darwin/virtualization_spec.rb
index fbf509ed..44d57d08 100644
--- a/spec/unit/plugins/darwin/virtualization_spec.rb
+++ b/spec/unit/plugins/darwin/virtualization_spec.rb
@@ -29,6 +29,7 @@ describe Ohai::System, "Darwin virtualization platform" do
     allow(plugin).to receive(:ioreg_exists?).and_return(false)
     allow(plugin).to receive(:vboxmanage_exists?).and_return(false)
     allow(plugin).to receive(:fusion_exists?).and_return(false)
+    allow(plugin).to receive(:docker_exists?).and_return(false)
   end
 
   describe "when detecting OS X virtualization" do
@@ -37,6 +38,14 @@ describe Ohai::System, "Darwin virtualization platform" do
       expect(plugin[:virtualization]).to eq({ "systems" => {} })
     end
 
+    it "should set docker host if docker exists" do
+      allow(plugin).to receive(:docker_exists?).and_return(true)
+      plugin.run
+      expect(plugin[:virtualization][:system]).to eq("docker")
+      expect(plugin[:virtualization][:role]).to eq("host")
+      expect(plugin[:virtualization][:systems][:docker]).to eq("host")
+    end
+
     it "should set vmware host if /Applications/VMware\ Fusion.app exists" do
       allow(plugin).to receive(:fusion_exists?).and_return(true)
       plugin.run
diff --git a/spec/unit/plugins/docker_spec.rb b/spec/unit/plugins/docker_spec.rb
new file mode 100644
index 00000000..e524d7a9
--- /dev/null
+++ b/spec/unit/plugins/docker_spec.rb
@@ -0,0 +1,100 @@
+#
+# Copyright:: 2018 Chef Software, Inc.
+# License:: Apache License, Version 2.0
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+require_relative "../../spec_helper.rb"
+
+docker_output = <<EOF
+{"ID":"KZET:VDFN:2V2G:JS5Z:HAKO:SOGI:AFSZ:HDMT:GVEM:V2NT:DUSW:J3Z6","Containers":11,"ContainersRunning":0,"ContainersPaused":0,"ContainersStopped":11,"Images":30,"Driver":"overlay2","DriverStatus":[["Backing Filesystem","extfs"],["Supports d_type","true"],["Native Overlay Diff","true"]],"SystemStatus":null,"Plugins":{"Volume":["local"],"Network":["bridge","host","ipvlan","macvlan","null","overlay"],"Authorization":null,"Log":["awslogs","fluentd","gcplogs","gelf","journald","json-file","logentries","splunk","syslog"]},"MemoryLimit":true,"SwapLimit":true,"KernelMemory":true,"CpuCfsPeriod":true,"CpuCfsQuota":true,"CPUShares":true,"CPUSet":true,"IPv4Forwarding":true,"BridgeNfIptables":true,"BridgeNfIp6tables":true,"Debug":true,"NFd":21,"OomKillDisable":true,"NGoroutines":39,"SystemTime":"2018-02-15T19:12:40.214106068Z","LoggingDriver":"json-file","CgroupDriver":"cgroupfs","NEventsListener":2,"KernelVersion":"4.9.60-linuxkit-aufs","OperatingSystem":"Docker for Mac","OSType":"linux","Architecture":"x86_64","IndexServerAddress":"https://index.docker.io/v1/","RegistryConfig":{"AllowNondistributableArtifactsCIDRs":[],"AllowNondistributableArtifactsHostnames":[],"InsecureRegistryCIDRs":["127.0.0.0/8"],"IndexConfigs":{"docker.io":{"Name":"docker.io","Mirrors":[],"Secure":true,"Official":true}},"Mirrors":[]},"NCPU":4,"MemTotal":2095816704,"GenericResources":null,"DockerRootDir":"/var/lib/docker","HttpProxy":"docker.for.mac.http.internal:3128","HttpsProxy":"docker.for.mac.http.internal:3129","NoProxy":"","Name":"linuxkit-025000000001","Labels":[],"ExperimentalBuild":true,"ServerVersion":"17.12.0-ce","ClusterStore":"","ClusterAdvertise":"","Runtimes":{"runc":{"path":"docker-runc"}},"DefaultRuntime":"runc","Swarm":{"NodeID":"","NodeAddr":"","LocalNodeState":"inactive","ControlAvailable":false,"Error":"","RemoteManagers":null},"LiveRestoreEnabled":false,"Isolation":"","InitBinary":"docker-init","ContainerdCommit":{"ID":"89623f28b87a6004d4b785663257362d1658a729","Expected":"89623f28b87a6004d4b785663257362d1658a729"},"RuncCommit":{"ID":"b2567b37d7b75eb4cf325b77297b140ea686ce8f","Expected":"b2567b37d7b75eb4cf325b77297b140ea686ce8f"},"InitCommit":{"ID":"949e6fa","Expected":"949e6fa"},"SecurityOptions":["name=seccomp,profile=default"]}
+EOF
+
+expected_output = {
+  "version_string" => "17.12.0-ce",
+  "version" => "17.12.0",
+  "runtimes" => {
+    "runc" => {
+      "path" => "docker-runc",
+    },
+  },
+  "root_dir" => "/var/lib/docker",
+  "containers" => {
+    "total" => 11,
+    "running" => 0,
+    "paused" => 0,
+    "stopped" => 11,
+  },
+  "plugins" => {
+    "Volume" => [
+      "local",
+    ],
+    "Network" => %w{
+bridge
+host
+ipvlan
+macvlan
+null
+overlay},
+    "Authorization" => nil,
+    "Log" => [
+      "awslogs",
+      "fluentd",
+      "gcplogs",
+      "gelf",
+      "journald",
+      "json-file",
+      "logentries",
+      "splunk",
+      "syslog",
+    ],
+  },
+  "networking" => {
+    "ipv4_forwarding" => true,
+    "bridge_nf_iptables" => true,
+    "bridge_nf_ipv6_iptables" => true,
+  },
+  "swarm" => {
+    "NodeID" => "",
+    "NodeAddr" => "",
+    "LocalNodeState" => "inactive",
+    "ControlAvailable" => false,
+    "Error" => "",
+    "RemoteManagers" => nil,
+  },
+}
+
+describe Ohai::System, "plugin docker" do
+  let(:plugin) { get_plugin("docker") }
+
+  context "if the machine does not have docker installed" do
+    it "should not create a docker attribute" do
+      plugin[:virtualization] = Mash.new
+      plugin[:virtualization][:systems] = Mash.new
+      plugin.run
+      expect(plugin).not_to have_key(:docker)
+    end
+  end
+
+  context "if the machine has docker installed" do
+    it "should create a docker attribute with correct data" do
+      plugin[:virtualization] = Mash.new
+      plugin[:virtualization][:systems] = Mash.new
+      plugin[:virtualization][:systems][:docker] = "host"
+      allow(plugin).to receive(:shell_out).with("docker info --format '{{json .}}'").and_return(mock_shell_out(0, docker_output, ""))
+      plugin.run
+      expect(plugin).to have_key(:docker)
+      expect(plugin[:docker]).to eq(expected_output)
+    end
+  end
+end
diff --git a/spec/unit/plugins/linux/virtualization_spec.rb b/spec/unit/plugins/linux/virtualization_spec.rb
index 57357b58..613319bb 100644
--- a/spec/unit/plugins/linux/virtualization_spec.rb
+++ b/spec/unit/plugins/linux/virtualization_spec.rb
@@ -45,6 +45,7 @@ describe Ohai::System, "Linux virtualization platform" do
     # default the which wrappers to nil
     allow(plugin).to receive(:which).with("lxc-version").and_return(nil)
     allow(plugin).to receive(:which).with("lxc-start").and_return(nil)
+    allow(plugin).to receive(:which).with("docker").and_return(nil)
     allow(plugin).to receive(:nova_exists?).and_return(false)
   end
 
@@ -85,6 +86,16 @@ describe Ohai::System, "Linux virtualization platform" do
     end
   end
 
+  describe "when we are checking for docker" do
+    it "sets docker host if docker binary exists" do
+      allow(plugin).to receive(:which).with("docker").and_return(true)
+      plugin.run
+      expect(plugin[:virtualization][:system]).to eq("docker")
+      expect(plugin[:virtualization][:role]).to eq("host")
+      expect(plugin[:virtualization][:systems][:docker]).to eq("host")
+    end
+  end
+
   describe "when we are checking for openstack" do
     it "sets openstack host if nova binary exists" do
       allow(plugin).to receive(:nova_exists?).and_return("/usr/bin/nova")