def get_istio_version() -> str:
"""
Get istio version(e.g. 1.4.5, 1.3.2) from pilot container image
"""
cmd = "kubectl get pod -n istio-system -l istio=pilot -o jsonpath='{.items[0].spec.containers[0].image}'"
imageName = command.run_sync(cmd) # Output Sample: docker.io/istio/pilot:1.4.5
return imageName[imageName.find(":") + 1:] # Extract version such as 1.4.5
def test_gererate(self):
self.load_templates()
ns_name = self.workload.generate(3)
output = command.run_sync("kubectl get svc -n {}".format(ns_name))
self.assertEqual(len(output.splitlines()), 4)
print("Delete workloads. Probably takes a little time.")
self.workload.reset()
def wait(self, namespace, resource, condition, timeout="300s"):
"""
Wait for a specific condition on deployed/deleted resources
"""
# This function use timeout command. because --timeout option in
# <kubectl wait> does not mean process timeout.
# --timeout is interval of sending GET resource to api-server
cmd = "timeout {timeout} kubectl --namespace {namespace} wait {resource} \
--for=condition={condition} --selector={label}".format(
namespace=namespace,
resource=resource,
condition=condition,
label=self.label,
timeout=timeout,
)
command.run_sync(cmd)
def reset(self):
"""
Delete all namespaces generated by this script
"""
self.logger.info("Delete all namespaces that has {} label".format(
self.label))
cmd = "kubectl delete namespace --selector={}".format(self.label)
resp = command.run_sync(cmd)
if resp:
self.logger.debug("Result: {}".format(resp))
def __deploy_manifest(self,
manifest,
namespace=None,
resource_type=None,
resource_name=None):
ns = " --namespace {}".format(namespace) if namespace else ""
cmd = "cat << EOF | kubectl {ns} apply -f -\n{manifest}EOF".format(
ns=ns, manifest=manifest)
try:
resp = command.run_sync(cmd)
except Exception as e:
self.logger.error("Failed to create {} {}".format(
resource_type, resource_name))
raise e
self.logger.info("Deploy {} - {}".format(resource_type, resource_name))
self.logger.debug("Deploy result: {}".format(resp))
def __get_prometheus_port(self):
cmd = "kubectl get svc -n istio-system prometheus -o jsonpath='{.spec.ports[0].port}'"
port = command.run_sync(cmd)
return port
def test_sync(self):
self.assertEqual("abcde", command.run_sync("echo abcde"))