Add add-host support.

fixtures.sh

@@ -20,6 +20,8 @@ docker run -d --name runlike_fixture1 \
     --device=/dev/null:/dev/null:r \
     --label com.example.group="one" \
     --label com.example.environment="test" \
+    --add-host hostname2:127.0.0.2 \
+    --add-host hostname3:127.0.0.3 \
     --log-driver=fluentd \
     --log-opt fluentd-async-connect=true \
     --log-opt tag=docker.runlike \

runlike/__init__.py

@@ -1 +1 @@
-__version__ = "0.5.0"
+__version__ = "0.5.1"

runlike/inspector.py

@@ -150,6 +150,10 @@ def parse_log(self):
                 log_options.add('--log-opt %s=%s' % (key, value))
         self.options += list(log_options)
 
+    def parse_extra_hosts(self):
+        hosts = self.get_fact("HostConfig.ExtraHosts") or []
+        self.options += ['--add-host %s' % host for host in hosts]
+
     def format_cli(self):
         self.output = "docker run "
 
@@ -181,6 +185,7 @@ def format_cli(self):
         self.parse_devices()
         self.parse_labels()
         self.parse_log()
+        self.parse_extra_hosts()
 
         stdout_attached = self.get_fact("Config.AttachStdout")
         if not stdout_attached:

test_runlike.py

@@ -95,6 +95,13 @@ def test_one_label(self):
     def test_labels_not_present(self):
         self.dont_expect_substr('--label', 3)
 
+    def test_extra_hosts(self):
+        self.expect_substr('--add-host hostname2:127.0.0.2 \\', 1)
+        self.expect_substr('--add-host hostname3:127.0.0.3 \\', 1)
+
+    def test_extra_hosts_not_present(self):
+        self.dont_expect_substr('--add-host', 2)
+
     def test_log_driver_default_no_opts(self):
         self.dont_expect_substr('--log-driver', 2)
         self.dont_expect_substr('--log-opt', 2)