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authorYury Kylulin <yury.kylulin@intel.com>2020-12-10 11:40:29 +0300
committerYury Kylulin <yury.kylulin@intel.com>2020-12-10 12:40:07 +0300
commit919872a6ee1ddfd9105879175a1649c1444be8c3 (patch)
treed76fbe69a233652b9286435078bd4848083b8673 /VNFs/DPPD-PROX/helper-scripts/rapid/rapid_k8s_pod.py
parentd5801e449ca4c7115c2c11bf164bcce7b149917c (diff)
Moving to python 3 for kubernetes scripts
Move to python version 3 in all scripts for kubernetes environment. Streamline file names to match existing libraries. Signed-off-by: Yury Kylulin <yury.kylulin@intel.com> Change-Id: Id875f4240a87ab600b445cb9a7fd97ec1335f88a
Diffstat (limited to 'VNFs/DPPD-PROX/helper-scripts/rapid/rapid_k8s_pod.py')
-rw-r--r--VNFs/DPPD-PROX/helper-scripts/rapid/rapid_k8s_pod.py206
1 files changed, 206 insertions, 0 deletions
diff --git a/VNFs/DPPD-PROX/helper-scripts/rapid/rapid_k8s_pod.py b/VNFs/DPPD-PROX/helper-scripts/rapid/rapid_k8s_pod.py
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index 00000000..b5fc8158
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+++ b/VNFs/DPPD-PROX/helper-scripts/rapid/rapid_k8s_pod.py
@@ -0,0 +1,206 @@
+##
+## Copyright (c) 2019 Intel Corporation
+##
+## Licensed under the Apache License, Version 2.0 (the "License");
+## you may not use this file except in compliance with the License.
+## You may obtain a copy of the License at
+##
+## http://www.apache.org/licenses/LICENSE-2.0
+##
+## Unless required by applicable law or agreed to in writing, software
+## distributed under the License is distributed on an "AS IS" BASIS,
+## WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+## See the License for the specific language governing permissions and
+## limitations under the License.
+##
+
+from os import path
+import time, yaml
+import logging
+from kubernetes import client, config
+
+from rapid_sshclient import SSHClient
+
+class Pod:
+ """Class which represents test pods.
+ For example with traffic gen, forward/swap applications, etc
+ """
+ k8s_CoreV1Api = None
+
+ _log = None
+
+ _name = "pod"
+ _namespace = "default"
+ _nodeSelector_hostname = None
+ _last_status = None
+ _id = None
+ _admin_ip = None
+ _dp_ip = None
+
+ _ssh_client = None
+
+ _sriov_vf = None
+ _sriov_vf_mac = None
+
+ def __init__(self, name, namespace = "default", logger_name = "k8srapid"):
+ self._log = logging.getLogger(logger_name)
+
+ self._name = name
+ self._namespace = namespace
+ self._ssh_client = SSHClient(logger_name = logger_name)
+
+ def __del__(self):
+ """Destroy POD. Do a cleanup.
+ """
+ if self._ssh_client is not None:
+ self._ssh_client.disconnect()
+
+ def create_from_yaml(self, file_name):
+ """Load POD description from yaml file.
+ """
+ with open(path.join(path.dirname(__file__), file_name)) as yaml_file:
+ self.body = yaml.safe_load(yaml_file)
+
+ self.body["metadata"]["name"] = self._name
+
+ if (self._nodeSelector_hostname is not None):
+ if ("nodeSelector" not in self.body["spec"]):
+ self.body["spec"]["nodeSelector"] = {}
+ self.body["spec"]["nodeSelector"]["kubernetes.io/hostname"] = self._nodeSelector_hostname
+ self._log.debug("Creating POD, body:\n%s" % self.body)
+
+ try:
+ self.k8s_CoreV1Api.create_namespaced_pod(body = self.body,
+ namespace = self._namespace)
+ except client.rest.ApiException as e:
+ self._log.error("Couldn't create POD %s!\n%s\n" % (self._name, e))
+
+ def terminate(self):
+ """Terminate POD. Close SSH connection.
+ """
+ if self._ssh_client is not None:
+ self._ssh_client.disconnect()
+
+ try:
+ self.k8s_CoreV1Api.delete_namespaced_pod(name = self._name,
+ namespace = self._namespace)
+ except client.rest.ApiException as e:
+ if e.reason != "Not Found":
+ self._log.error("Couldn't delete POD %s!\n%s\n" % (self._name, e.reason))
+
+ def update_admin_ip(self):
+ """Check for admin IP address assigned by k8s.
+ """
+ try:
+ pod = self.k8s_CoreV1Api.read_namespaced_pod_status(name = self._name, namespace = self._namespace)
+ self._admin_ip = pod.status.pod_ip
+ except client.rest.ApiException as e:
+ self._log.error("Couldn't update POD %s admin IP!\n%s\n" % (self._name, e))
+
+ def wait_for_start(self):
+ """Wait for POD to start.
+ """
+ self._log.info("Waiting for POD %s to start..." % self._name)
+ while True:
+ self.get_status()
+ if (self._last_status == "Running" or self._last_status == "Failed"
+ or self._last_status == "Unknown"):
+ break
+ else:
+ time.sleep(3)
+
+ self.update_admin_ip()
+
+ return self._last_status
+
+ def ssh_run_cmd(self, cmd):
+ """Execute command for POD via SSH connection.
+ SSH credentials should be configured before use of this function.
+ """
+ self._ssh_client.run_cmd(cmd)
+
+ def get_name(self):
+ return self._name
+
+ def get_admin_ip(self):
+ return self._admin_ip
+
+ def get_dp_ip(self):
+ return self._dp_ip
+
+ def get_dp_mac(self):
+ return self._sriov_vf_mac
+
+ def get_dp_pci_dev(self):
+ return self._sriov_vf
+
+ def get_id(self):
+ return self._id
+
+ def get_status(self):
+ """Get current status fro the pod.
+ """
+ try:
+ pod = self.k8s_CoreV1Api.read_namespaced_pod_status(name = self._name,
+ namespace = self._namespace)
+ except client.rest.ApiException as e:
+ self._log.error("Couldn't read POD %s status!\n%s\n" % (self._name, e))
+
+ self._last_status = pod.status.phase
+ return self._last_status
+
+ def get_sriov_dev_mac(self):
+ """Get assigned by k8s SRIOV network device plugin SRIOV VF devices.
+ Return 0 in case of sucessfull configuration.
+ Otherwise return -1.
+ """
+ self._log.info("Checking assigned SRIOV VF for POD %s" % self._name)
+ ret = self._ssh_client.run_cmd("cat /opt/rapid/k8s_sriov_device_plugin_envs")
+ if ret != 0:
+ self._log.error("Failed to check assigned SRIOV VF!"
+ "Error %s" % self._ssh_client.get_error())
+ return -1
+
+ cmd_output = self._ssh_client.get_output().decode("utf-8").rstrip()
+ self._log.debug("Environment variable %s" % cmd_output)
+
+ # Parse environment variable
+ cmd_output = cmd_output.split("=")[1]
+ self._sriov_vf = cmd_output.split(",")[0]
+ self._log.debug("Using first SRIOV VF %s" % self._sriov_vf)
+
+ self._log.info("Getting MAC address for assigned SRIOV VF %s" % self._sriov_vf)
+ self._ssh_client.run_cmd("sudo /opt/rapid/port_info_app -n 4 -w %s" % self._sriov_vf)
+ if ret != 0:
+ self._log.error("Failed to get MAC address!"
+ "Error %s" % self._ssh_client.get_error())
+ return -1
+
+ # Parse MAC address
+ cmd_output = self._ssh_client.get_output().decode("utf-8").rstrip()
+ self._log.debug(cmd_output)
+ cmd_output = cmd_output.splitlines()
+ for line in cmd_output:
+ if line.startswith("Port 0 MAC: "):
+ self._sriov_vf_mac = line[12:]
+
+ self._log.debug("MAC %s" % self._sriov_vf_mac)
+
+ def set_dp_ip(self, dp_ip):
+ self._dp_ip = dp_ip
+
+ def set_id(self, pod_id):
+ self._id = pod_id
+
+ def set_nodeselector(self, hostname):
+ """Set hostname on which POD will be executed.
+ """
+ self._nodeSelector_hostname = hostname
+
+ def set_ssh_credentials(self, user, rsa_private_key):
+ """Set SSH credentials for the SSH connection to the POD.
+ """
+ self.update_admin_ip()
+ self._ssh_client.set_credentials(ip = self._admin_ip,
+ user = user,
+ rsa_private_key = rsa_private_key)