CI test deployment.py: auto-pull missing images if necessary

ci-scripts/tests/README.md

@@ -11,11 +11,15 @@ start with
     python tests/iperf-analysis.py -v
     python tests/ping-iperf.py -v
 
-It will indicate if all tests passed. It assumes that these images are present:
+It will indicate if all tests passed. `tests/deployment.py` requires these
+images to be present:
 
 - `oai-ci/oai-nr-ue:develop-12345678`
 - `oai-ci/oai-gnb:develop-12345678`
 
+It will try to download `oaisoftwarealliance/oai-{gnb,nr-ue}:develop`
+automatically and retag the images.
+
 # test-runner test
 
 This is not a true test, because the results need to be manually inspected. To

ci-scripts/tests/deployment.py

@@ -15,9 +15,24 @@ import cls_oai_html
 import cls_oaicitest
 import cls_containerize
 import ran
+import cls_cmd
 
 class TestDeploymentMethods(unittest.TestCase):
+	def _pull_image(self, cmd, image):
+		ret = cmd.run(f"docker inspect oai-ci/{image}:develop-12345678")
+		if ret.returncode == 0: # exists
+			return
+		ret = cmd.run(f"docker pull oaisoftwarealliance/{image}:develop")
+		self.assertEqual(ret.returncode, 0)
+		ret = cmd.run(f"docker tag oaisoftwarealliance/{image}:develop oai-ci/{image}:develop-12345678")
+		self.assertEqual(ret.returncode, 0)
+		ret = cmd.run(f"docker rmi oaisoftwarealliance/{image}:develop")
+		self.assertEqual(ret.returncode, 0)
+
 	def setUp(self):
+		with cls_cmd.getConnection("localhost") as cmd:
+			self._pull_image(cmd, "oai-gnb")
+			self._pull_image(cmd, "oai-nr-ue")
 		self.html = cls_oai_html.HTMLManagement()
 		self.html.testCaseId = "000000"
 		self.ci = cls_oaicitest.OaiCiTest()