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Ambari python client can be used make use of Ambari APIs.

The first step is to create the Ambari client

Create Ambari client
from ambari_client.ambari_api import  AmbariClient
client = AmbariClient("localhost", 8080, "admin", "admin", version=1)
print client.version
print client.host_url
print"\n"

Some useful methods

  1. Show all clusters in Ambari
    all_clusters = client.get_all_clusters()
    print all_clusters.to_json_dict()
    print all_clusters
  2. Show all hosts in Ambari
    all_hosts = client.get_all_hosts()
    print all_hosts
    print all_hosts.to_json_dict()
    print"\n"

We can also get the information of a specific cluster

  1. Show a specific cluster in Ambari
    cluster = client.get_cluster('test6')
    print cluster
    print cluster.to_json_dict()
    print"\n"
  2. Show all hosts in the cluster
    clusters_hosts = cluster.get_all_hosts()
    print clusters_hosts.to_json_dict()
    print clusters_hosts
    print"\n"
  3. Show a specific host in the cluster
    r01wn01_host = cluster.get_host('r01wn01')
    print r01wn01_host
    print r01wn01_host.clusterRef.cluster_name
    print r01wn01_host.to_json_dict()
    print"\n"
  4. Show all components of a host
    r01wn01_host_comp = r01wn01_host.get_host_components()
    print r01wn01_host_comp
    print r01wn01_host_comp.to_json_dict()
    print"\n"
  5. Show a specific service of a cluster
    nn = r01wn01_host.get_host_component("NAMENODE")
    print nn
    print nn.to_json_dict()
    print nn.clusterRef.cluster_name
    print"\n"
  6. Show all services in the cluster
    serviceList = cluster.get_all_services()
    print serviceList
    print serviceList.to_json_dict()
    print"\n"
  7. Show a specific service of a cluster
    ganglia = cluster.get_service("GANGLIA")
    print  ganglia
    print ganglia.to_json_dict()
    print"\n"
  8. Show all components of a service
    ganglia_comps = ganglia.get_service_components()
    print ganglia_comps
    print ganglia_comps.to_json_dict()
    print"\n"
  9. Show a specific component of a service
    ganglia_comp1 = ganglia.get_service_component('GANGLIA_MONITOR')
    print ganglia_comp1
    print ganglia_comp1.to_json_dict()
    print ganglia_comp1.clusterRef.cluster_name
    print"\n"
  10. Stop a service
    ganglia.stop()
  11. Satrt a service
    ganglia.start()
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