Add ssl support to gearman / gearman_server

Enable SSL support for gearman. We also created an new SSLZuulBaseTest
class to provide a simple way to use SSL end to end where possible. A
future patch will enable support in zookeeper.

Change-Id: Ia8b89bab475d758cc6a021988f8d79ead8836a9d
Signed-off-by: Paul Belanger <pabelanger@redhat.com>
diff --git a/tests/base.py b/tests/base.py
index fae23fe..1fe9739 100755
--- a/tests/base.py
+++ b/tests/base.py
@@ -1359,9 +1359,20 @@
 
     """
 
-    def __init__(self):
+    def __init__(self, use_ssl=False):
         self.hold_jobs_in_queue = False
-        super(FakeGearmanServer, self).__init__(0)
+        if use_ssl:
+            ssl_ca = os.path.join(FIXTURE_DIR, 'gearman/root-ca.pem')
+            ssl_cert = os.path.join(FIXTURE_DIR, 'gearman/server.pem')
+            ssl_key = os.path.join(FIXTURE_DIR, 'gearman/server.key')
+        else:
+            ssl_ca = None
+            ssl_cert = None
+            ssl_key = None
+
+        super(FakeGearmanServer, self).__init__(0, ssl_key=ssl_key,
+                                                ssl_cert=ssl_cert,
+                                                ssl_ca=ssl_ca)
 
     def getJobForConnection(self, connection, peek=False):
         for queue in [self.high_queue, self.normal_queue, self.low_queue]:
@@ -1815,6 +1826,7 @@
     config_file = 'zuul.conf'
     run_ansible = False
     create_project_keys = False
+    use_ssl = False
 
     def _startMerger(self):
         self.merge_server = zuul.merger.server.MergeServer(self.config,
@@ -1872,11 +1884,22 @@
         reload_module(statsd)
         reload_module(zuul.scheduler)
 
-        self.gearman_server = FakeGearmanServer()
+        self.gearman_server = FakeGearmanServer(self.use_ssl)
 
         self.config.set('gearman', 'port', str(self.gearman_server.port))
         self.log.info("Gearman server on port %s" %
                       (self.gearman_server.port,))
+        if self.use_ssl:
+            self.log.info('SSL enabled for gearman')
+            self.config.set(
+                'gearman', 'ssl_ca',
+                os.path.join(FIXTURE_DIR, 'gearman/root-ca.pem'))
+            self.config.set(
+                'gearman', 'ssl_cert',
+                os.path.join(FIXTURE_DIR, 'gearman/client.pem'))
+            self.config.set(
+                'gearman', 'ssl_key',
+                os.path.join(FIXTURE_DIR, 'gearman/client.key'))
 
         gerritsource.GerritSource.replication_timeout = 1.5
         gerritsource.GerritSource.replication_retry_interval = 0.5
@@ -2686,6 +2709,11 @@
     run_ansible = True
 
 
+class SSLZuulTestCase(ZuulTestCase):
+    """ZuulTestCase but with an but using SSL when possible"""
+    use_ssl = True
+
+
 class ZuulDBTestCase(ZuulTestCase):
     def setup_config(self):
         super(ZuulDBTestCase, self).setup_config()
diff --git a/tests/fixtures/gearman/README.rst b/tests/fixtures/gearman/README.rst
new file mode 100644
index 0000000..a3921ea
--- /dev/null
+++ b/tests/fixtures/gearman/README.rst
@@ -0,0 +1,21 @@
+Steps used to create our certs
+
+# Generate CA cert
+$ openssl req -new -newkey rsa:2048 -nodes -keyout root-ca.key -x509 -days 3650 -out root-ca.pem -subj "/C=US/ST=Texas/L=Austin/O=OpenStack Foundation/CN=gearman-ca"
+
+# Generate server keys
+$ CLIENT='server'
+$ openssl req -new -newkey rsa:2048 -nodes -keyout $CLIENT.key -out $CLIENT.csr -subj "/C=US/ST=Texas/L=Austin/O=OpenStack Foundation/CN=nodepool-$CLIENT"
+$ openssl x509 -req -days 3650 -in $CLIENT.csr -out $CLIENT.pem -CA root-ca.pem -CAkey root-ca.key -CAcreateserial
+
+
+# Generate client keys
+$ CLIENT='client'
+$ openssl req -new -newkey rsa:2048 -nodes -keyout $CLIENT.key -out $CLIENT.csr -subj "/C=US/ST=Texas/L=Austin/O=OpenStack Foundation/CN=gearman-$CLIENT"
+$ openssl x509 -req -days 3650 -in $CLIENT.csr -out $CLIENT.pem -CA root-ca.pem -CAkey root-ca.key -CAcreateserial
+
+
+# Test with geard
+# You'll need 2 terminal windows
+geard --ssl-ca root-ca.pem --ssl-cert server.pem --ssl-key server.key -d
+openssl s_client -connect localhost:4730 -key client.key -cert client.pem -CAfile root-ca.pem
diff --git a/tests/fixtures/gearman/client.csr b/tests/fixtures/gearman/client.csr
new file mode 100644
index 0000000..fadb857
--- /dev/null
+++ b/tests/fixtures/gearman/client.csr
@@ -0,0 +1,17 @@
+-----BEGIN CERTIFICATE REQUEST-----
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+-----END CERTIFICATE REQUEST-----
diff --git a/tests/fixtures/gearman/client.key b/tests/fixtures/gearman/client.key
new file mode 100644
index 0000000..656cfc7
--- /dev/null
+++ b/tests/fixtures/gearman/client.key
@@ -0,0 +1,28 @@
+-----BEGIN PRIVATE KEY-----
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+-----END PRIVATE KEY-----
diff --git a/tests/fixtures/gearman/client.pem b/tests/fixtures/gearman/client.pem
new file mode 100644
index 0000000..aac9d8d
--- /dev/null
+++ b/tests/fixtures/gearman/client.pem
@@ -0,0 +1,20 @@
+-----BEGIN CERTIFICATE-----
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+-----END CERTIFICATE-----
diff --git a/tests/fixtures/gearman/root-ca.key b/tests/fixtures/gearman/root-ca.key
new file mode 100644
index 0000000..3db94c3
--- /dev/null
+++ b/tests/fixtures/gearman/root-ca.key
@@ -0,0 +1,28 @@
+-----BEGIN PRIVATE KEY-----
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+-----END PRIVATE KEY-----
diff --git a/tests/fixtures/gearman/root-ca.pem b/tests/fixtures/gearman/root-ca.pem
new file mode 100644
index 0000000..defedd6
--- /dev/null
+++ b/tests/fixtures/gearman/root-ca.pem
@@ -0,0 +1,22 @@
+-----BEGIN CERTIFICATE-----
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+-----END CERTIFICATE-----
diff --git a/tests/fixtures/gearman/root-ca.srl b/tests/fixtures/gearman/root-ca.srl
new file mode 100644
index 0000000..0ce584a
--- /dev/null
+++ b/tests/fixtures/gearman/root-ca.srl
@@ -0,0 +1 @@
+E728FD6D449AFED8
diff --git a/tests/fixtures/gearman/server.csr b/tests/fixtures/gearman/server.csr
new file mode 100644
index 0000000..bbb03d2
--- /dev/null
+++ b/tests/fixtures/gearman/server.csr
@@ -0,0 +1,17 @@
+-----BEGIN CERTIFICATE REQUEST-----
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+-----END CERTIFICATE REQUEST-----
diff --git a/tests/fixtures/gearman/server.key b/tests/fixtures/gearman/server.key
new file mode 100644
index 0000000..c1707b0
--- /dev/null
+++ b/tests/fixtures/gearman/server.key
@@ -0,0 +1,28 @@
+-----BEGIN PRIVATE KEY-----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+-----END PRIVATE KEY-----
diff --git a/tests/fixtures/gearman/server.pem b/tests/fixtures/gearman/server.pem
new file mode 100644
index 0000000..1c85fad
--- /dev/null
+++ b/tests/fixtures/gearman/server.pem
@@ -0,0 +1,20 @@
+-----BEGIN CERTIFICATE-----
+MIIDRTCCAi0CCQDnKP1tRJr+1zANBgkqhkiG9w0BAQsFADBiMQswCQYDVQQGEwJV
+UzEOMAwGA1UECAwFVGV4YXMxDzANBgNVBAcMBkF1c3RpbjEdMBsGA1UECgwUT3Bl
+blN0YWNrIEZvdW5kYXRpb24xEzARBgNVBAMMCmdlYXJtYW4tY2EwHhcNMTcwNjE0
+MTQwNjM1WhcNMjcwNjEyMTQwNjM1WjBnMQswCQYDVQQGEwJVUzEOMAwGA1UECAwF
+VGV4YXMxDzANBgNVBAcMBkF1c3RpbjEdMBsGA1UECgwUT3BlblN0YWNrIEZvdW5k
+YXRpb24xGDAWBgNVBAMMD25vZGVwb29sLXNlcnZlcjCCASIwDQYJKoZIhvcNAQEB
+BQADggEPADCCAQoCggEBALOgqRpq5M0FGvLVjlgI0bfwivFbQAflM/ld1MX+r5C7
+Wn2idGwAKJJlfxhgCj/LqNVtndYqKFV9UhDD3Gs9MKgDQDAy0jx+IrvRjBK4aDqC
+oEEKvw1c5pixgUmTZWT7y62U1KYtiVxJMplHQduFY2aMf2WPlaeAvRc9JtyiiC29
+633bXXWoZ8FmuD7zoHdcmHb/o8Ku71ia5+qWigWiDtDhCjoGfPsOH6HZCO0OYZIX
+PR1D0+o/wmCHctJ9ZGTlOuMay2EqzNFNkJANJdzVdzACp87bV658/2hOl9zTNN0A
+4LW2yl0//rfaroHQZ/yxIScykqbC4ZQffPZkJjoNITUCAwEAATANBgkqhkiG9w0B
+AQsFAAOCAQEAlqcjSBG96JnKcSlw4ntxJiSGja5iuMi3yVpQS8G3ak6i8eGYlqMH
+SCWC96ZfXr/KjVyF3AsD554e54pEAywcFLH4QzZoceWc5L2etfTCa9cInQsiNpvV
+CfvVADRX4Ib7ozb4MJFJFy5OWnhPO6CcknA2KdTergKIichBmR0LvuUZEblwHOcg
+HAwxpZirNofs/i+aXnIgKAIC97WY1S+8SL5cEfdR0Sd9SpbCLVgSdyGhxm0NE2ls
+38jQhwYIVkpYYJd/jsyGtiHCDT4rkSEJlRWYfLXfSkyjtiERASqs/NEgrnbkgp/l
+Sa2wc5cjntNzls2ey7bkpZbgwOvGQVjS7w==
+-----END CERTIFICATE-----
diff --git a/tests/unit/test_scheduler.py b/tests/unit/test_scheduler.py
index 839007d..1124beb 100755
--- a/tests/unit/test_scheduler.py
+++ b/tests/unit/test_scheduler.py
@@ -35,12 +35,36 @@
 import zuul.model
 
 from tests.base import (
+    SSLZuulTestCase,
     ZuulTestCase,
     repack_repo,
     simple_layout,
 )
 
 
+class TestSchedulerSSL(SSLZuulTestCase):
+    tenant_config_file = 'config/single-tenant/main.yaml'
+
+    def test_jobs_executed(self):
+        "Test that jobs are executed and a change is merged"
+
+        A = self.fake_gerrit.addFakeChange('org/project', 'master', 'A')
+        A.addApproval('code-review', 2)
+        self.fake_gerrit.addEvent(A.addApproval('approved', 1))
+        self.waitUntilSettled()
+        self.assertEqual(self.getJobFromHistory('project-merge').result,
+                         'SUCCESS')
+        self.assertEqual(self.getJobFromHistory('project-test1').result,
+                         'SUCCESS')
+        self.assertEqual(self.getJobFromHistory('project-test2').result,
+                         'SUCCESS')
+        self.assertEqual(A.data['status'], 'MERGED')
+        self.assertEqual(A.reported, 2)
+        self.assertEqual(self.getJobFromHistory('project-test1').node,
+                         'label1')
+        self.assertIsNone(self.getJobFromHistory('project-test2').node)
+
+
 class TestScheduler(ZuulTestCase):
     tenant_config_file = 'config/single-tenant/main.yaml'