Rollout multiple times a daemonset using --revision key
Change-Id: I3e43a32fd1234df166b421422ee80d8923a92caf
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@ -28,6 +28,7 @@ class TestDaemonsetsUpdates():
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from_nginx_image = 'nginx:1.10'
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to_nginx_image = 'nginx:1.11'
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to_nginx_image_1_12 = 'nginx:1.12'
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def get_nginx_spec(self):
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"""Create specification for DaemonSet with Nginx containers
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@ -122,6 +123,19 @@ class TestDaemonsetsUpdates():
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"DaemonSet {0} has image {1} while expected {2}"
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.format(nginx_ds.name, nginx_ds_image, nginx_image))
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def check_nginx_revision_image(self, config, underlay,
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revision, nginx_image):
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cmd = "kubectl rollout history daemonset/nginx " \
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"--revision {} | grep Image".format(revision)
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nginx_revision_image = underlay.check_call(cmd,
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host=config
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)['stdout_str'].replace(
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'\t', '').split(
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":", 1)[1]
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assert nginx_revision_image == nginx_image, (
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"revision {0} has image {1} while expected {2}".format(
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revision, nginx_revision_image, nginx_image))
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@pytest.mark.revert_snapshot(ext.SNAPSHOT.k8s_deployed)
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@pytest.mark.fail_snapshot
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@pytest.mark.snapshot_needed
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@ -471,3 +485,168 @@ class TestDaemonsetsUpdates():
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self.from_nginx_image),
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timeout=2 * 60
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)
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@pytest.mark.revert_snapshot(ext.SNAPSHOT.k8s_deployed)
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@pytest.mark.fail_snapshot
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@pytest.mark.snapshot_needed
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def test_daemonset_multirollout_rollingupdate_revision(self,
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config,
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k8scluster,
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show_step,
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underlay):
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"""Rollout a daemonset using updateStrategy type: RollingUpdate and
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--to-revision argument
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Scenario:
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1. Deploy k8s using fuel-ccp-installer
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2. Create a DaemonSet for nginx with image version 1_10 and
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update strategy RollingUpdate
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3. Wait until nginx pods are created and become 'ready'
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4. Check that the image version in the nginx pods is 1_10
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Check that the image version in the nginx daemonset is 1_10
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5. Change nginx image version to 1_11 using YAML
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6. Check that the image version in the nginx daemonset
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is updated to 1_11
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Wait for ~120 sec that the image version in the nginx pods
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is changed to 1_11
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7. Change nginx image version to 1_12 using YAML
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8. Check that the image version in the nginx daemonset
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is updated to 1_12.
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Wait for ~120 sec that the image version in the nginx pods
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is changed to 1_12 .
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9. Get the revision #1 and check that there are the image
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version 1_10
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10. Get the revision #2 and check that there are the image
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version 1_11
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11. Get the revision #3 and check that there are the image
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version 1_12
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12. Rollback the nginx daemonset to revision #1:
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kubectl rollout undo daemonset/nginx --to-revision=1
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13. Check that the image version in the nginx daemonset
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is updated to 1_10
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Wait for ~120 sec that the image version in the nginx pods
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is changed to 1_10
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14. Rollback the nginx daemonset:
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kubectl rollout undo daemonset/nginx
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15. Check that the image version in the nginx daemonset
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is updated to 1_12
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Wait for ~120 sec that the image version in the nginx pods
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is changed to 1_12
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Duration: 3000 seconds
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"""
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# STEP #1
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show_step(1)
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k8sclient = k8scluster.api
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assert k8sclient.nodes.list() is not None, "Can not get nodes list"
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# STEP #2
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show_step(2)
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nginx_spec = self.get_nginx_spec()
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nginx_spec['spec']['template']['spec']['containers'][0][
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'image'] = self.from_nginx_image
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k8sclient.daemonsets.create(body=nginx_spec)
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# STEP #3
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show_step(3)
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time.sleep(3)
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self.wait_nginx_pods_ready(k8sclient)
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# STEP #4
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show_step(4)
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self.check_nginx_pods_image(k8sclient, self.from_nginx_image)
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self.check_nginx_ds_image(k8sclient, self.from_nginx_image)
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# STEP #5
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show_step(5)
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nginx_spec['spec']['template']['spec']['containers'][0][
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'image'] = self.to_nginx_image
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k8sclient.daemonsets.update(body=nginx_spec,
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name=nginx_spec['metadata']['name'])
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# STEP #6
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show_step(6)
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# DaemonSet should have new image version
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self.check_nginx_ds_image(k8sclient, self.to_nginx_image)
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# Pods should have new image version
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helpers.wait_pass(
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lambda: self.check_nginx_pods_image(
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k8sclient,
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self.to_nginx_image),
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timeout=2 * 60)
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# STEP #7
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show_step(7)
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nginx_spec['spec']['template']['spec']['containers'][0][
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'image'] = self.to_nginx_image_1_12
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k8sclient.daemonsets.update(body=nginx_spec,
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name=nginx_spec['metadata']['name'])
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# STEP #8
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show_step(8)
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# DaemonSet should have new image version
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self.check_nginx_ds_image(k8sclient, self.to_nginx_image_1_12)
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# Pods should have new image version
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helpers.wait_pass(
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lambda: self.check_nginx_pods_image(
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k8sclient,
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self.to_nginx_image_1_12),
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timeout=2 * 60)
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# STEP #9
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show_step(9)
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self.check_nginx_revision_image(config=config.k8s.kube_host,
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underlay=underlay,
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revision="1",
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nginx_image=self.from_nginx_image)
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# STEP #10
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show_step(10)
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self.check_nginx_revision_image(config=config.k8s.kube_host,
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underlay=underlay,
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revision="2",
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nginx_image=self.to_nginx_image)
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# STEP #11
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show_step(11)
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self.check_nginx_revision_image(config=config.k8s.kube_host,
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underlay=underlay,
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revision="3",
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nginx_image=self.to_nginx_image_1_12)
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# STEP #12
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show_step(12)
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cmd = "kubectl rollout undo daemonset/nginx --to-revision=1"
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underlay.check_call(cmd,
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host=config.k8s.kube_host)
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# STEP #13
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show_step(13)
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self.check_nginx_ds_image(k8sclient, self.to_nginx_image)
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# Pods should have old image version
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helpers.wait_pass(
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lambda: self.check_nginx_pods_image(
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k8sclient,
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self.from_nginx_image),
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timeout=2 * 60
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)
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# STEP #14
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show_step(14)
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cmd = "kubectl rollout undo daemonset/nginx"
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underlay.check_call(cmd,
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host=config.k8s.kube_host)
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# STEP #15
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show_step(15)
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self.check_nginx_ds_image(k8sclient, self.from_nginx_image)
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# Pods should have new image version
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helpers.wait_pass(
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lambda: self.check_nginx_pods_image(
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k8sclient,
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self.to_nginx_image_1_12),
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timeout=2 * 60
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)
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