[CE-285] The Cluster part of kubernetes agent

This patch will enable Cello to deploy Fabric clusters
on kubernetes.

Change-Id: I65d1442f8c6913ee2150d801040ef06b95122264
Signed-off-by: luke <[email protected]>

src/agent/__init__.py

@@ -11,12 +11,14 @@
     compose_up, compose_clean, compose_start, compose_stop, compose_restart, \
     setup_container_host, cleanup_host, reset_container_host
 
-from .vsphere.host_operations import VsphereOperation
-
 from .docker.host import DockerHost
 from .docker.cluster import ClusterOnDocker
 
+from .k8s.cluster_operations import K8sClusterOperation
+from .k8s.host_operations import KubernetesOperation
+from .k8s.cluster import ClusterOnKubernetes
 from .k8s.host import KubernetesHost
 
+from .vsphere.host_operations import VsphereOperation
 from .vsphere.host import VsphereHost
 from .vsphere.cluster import ClusterOnVsphere

src/agent/k8s/__init__.py

@@ -1,5 +1,6 @@
-# Copyright IBM Corp, All Rights Reserved.
+# Copyright 2018 (c) VMware, Inc. All Rights Reserved.
 #
 # SPDX-License-Identifier: Apache-2.0
 #
-#  This is for agent that interacts with Kubernetes platform
+#  This is for agent that interacts with Kubernetes platform using
+#  cello-k8s-operator, see github.com/hyperledger/cello-k8s-operator.

src/agent/k8s/cluster.py

@@ -0,0 +1,91 @@
+# Copyright 2018 (c) VMware, Inc. All Rights Reserved.
+# SPDX-License-Identifier: Apache-2.0
+
+import logging
+import os
+import sys
+
+from agent import K8sClusterOperation
+
+sys.path.append(os.path.join(os.path.dirname(__file__), '..', '..'))
+from common import log_handler, LOG_LEVEL
+
+from agent import compose_up, compose_clean, compose_start, compose_stop, \
+    compose_restart
+
+from common import NETWORK_TYPES, CONSENSUS_PLUGINS_FABRIC_V1, \
+    CONSENSUS_MODES, NETWORK_SIZE_FABRIC_PRE_V1
+
+from ..cluster_base import ClusterBase
+
+
+logger = logging.getLogger(__name__)
+logger.setLevel(LOG_LEVEL)
+logger.addHandler(log_handler)
+
+
+class ClusterOnKubernetes(ClusterBase):
+    """ Main handler to operate the cluster in Kubernetes
+
+    """
+    def __init__(self):
+        pass
+
+    def create(self, kube_config, cluster_name, ports_index, nfsServer_ip):
+        try:
+            operation = K8sClusterOperation(kube_config)
+            containers = operation.deploy_cluster(cluster_name,
+                                                  ports_index,
+                                                  nfsServer_ip)
+        except Exception as e:
+            logger.error("Failed to create Kubernetes Cluster: {}".format(e))
+            return None
+        return containers
+
+    def delete(self, kube_config, cluster_name, ports_index, nfsServer_ip):
+        try:
+            operation = K8sClusterOperation(kube_config)
+            operation.delete_cluster(cluster_name, ports_index, nfsServer_ip)
+        except Exception as e:
+            logger.error("Failed to delete Kubernetes Cluster: {}".format(e))
+            return False
+        return True
+
+    def get_services_urls(self, kube_config, cluster_name):
+        try:
+            operation = K8sClusterOperation(kube_config)
+            services_urls = operation.get_services_urls(cluster_name)
+        except Exception as e:
+            logger.error("Failed to get Kubernetes services's urls: {}"
+                         .format(e))
+            return None
+        return services_urls
+
+    def start(self, kube_config, cluster_name, ports_index, nfsServer_ip):
+        try:
+            operation = K8sClusterOperation(kube_config)
+            containers = operation.start_cluster(cluster_name, ports_index,
+                                                 nfsServer_ip)
+        except Exception as e:
+            logger.error("Failed to start Kubernetes Cluster: {}".format(e))
+            return None
+        return containers
+
+    def stop(self, kube_config, cluster_name, ports_index, nfsServer_ip):
+        try:
+            operation = K8sClusterOperation(kube_config)
+            operation.stop_cluster(cluster_name, ports_index, nfsServer_ip)
+        except Exception as e:
+            logger.error("Failed to stop Kubernetes Cluster: {}".format(e))
+            return False
+        return True
+
+    def restart(self, kube_config, cluster_name, ports_index, nfsServer_ip):
+        result = self.stop(kube_config, cluster_name, ports_index,
+                           nfsServer_ip)
+        if result:
+            return self.start(kube_config, cluster_name, ports_index,
+                              nfsServer_ip)
+        else:
+            logger.error("Failed to Restart Kubernetes Cluster")
+            return None