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fabfile.py
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fabfile.py
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from fabric.contrib.files import exists, append, contains
from fabric.contrib import files
from fabric.api import run, env, sudo, local, cd, settings
from fabric.api import hide, parallel, roles, hosts, serial
from fabric.context_managers import shell_env
from fabric.utils import error
import os
from libcloud.compute.types import Provider
from libcloud.compute.providers import get_driver
import libcloud.security
from prettytable import PrettyTable
def _get_env_value(env_name, default_value):
env_value = os.environ.get(env_name)
if env_value is None:
return default_value
else:
return env_value
def _get_env_array(env_name, default_value, delimiter):
env_value = os.environ.get(env_name)
if env_value is None:
return default_value
else:
return env_value.split(delimiter)
def _get_node_name(node_name_prefix, node_id):
return node_name_prefix + "-" + str(node_id)
env.forward_agent = True
env.use_ssh_config = True
os_user = os.environ["OS_USERNAME"]
os_tenant_name = os.environ["OS_TENANT_NAME"]
os_password = os.environ["OS_PASSWORD"]
os_url = os.environ["OS_AUTH_URL"]+"/tokens"
cluster_num_of_nodes = int(os.environ["LEADS_CLUSTER_NUM_OF_NODES"])
cluster_name = _get_env_value("LEADS_CLUSTER_NAME", "leads-m24-cluster")
cluster_security_group_name = cluster_name + "_internal"
# infinispan - 54200 and 55200
# hadoop - 9000 and 9001 and 50070 (NameNode) and 8088 (resourcemanager)
cluster_port_communication = ['54200', '55200', '22', '9000', '9001', '50070',
'8088', '19888', '10020']
cluster_external_access_sg_name = cluster_name + "_external_access"
cluster_external_access_ports = ['22']
# the openstack primary
cluster_primary_ssh_key = _get_env_value("LEADS_CLUSTER_PRIMARY_SSH_KEY", "wb-new-key")
# injected using cloud-init
# on C&H, the ssh key must be imported to the installation
# otherwise you can
cluster_additinal_ssh_keys = _get_env_array("LEADS_CLUSTER_ADD_SSH_KEYS", [], ',')
node_name_prefix = cluster_name + "-node"
node_flavor = "cloudcompute.s"
image_name = "Ubuntu 14.04 LTS x64"
node_metadata = {"leads_cluster_name": cluster_name}
infinispan_package_url = 'https://object-hamm5.cloudandheat.com:8080/'\
'v1/AUTH_73e8d4d1688f4e1f86926d4cb897091f/infinispan/infinispan-server-7.0.1-SNAPSHOT.tgz?'\
'temp_url_sig=76fcfe3e623edea4642e443ba5ff04e076395b85&'\
'temp_url_expires=1419376046'
hadoop_package_url = 'https://archive.apache.org/dist/hadoop/core/hadoop-2.5.2/hadoop-2.5.2.tar.gz'
hadoop_master_node_id = _get_env_value("LEADS_CLUSTER_HADOOP_MASTER_NODE_ID", 0)
hadoop_master_node = _get_node_name(node_name_prefix, str(hadoop_master_node_id))
hadoop_slave_node_ids = _get_env_array("LEADS_CLUSTER_HADOOP_SLAVE_NODE_IDS", [1], ",")
hadoop_slave_nodes = [_get_node_name(node_name_prefix, s) for s in hadoop_slave_node_ids]
env.roledefs = {
'masters': [hadoop_master_node],
'slaves': hadoop_slave_nodes
}
Driver = get_driver(Provider.OPENSTACK)
os_conn = Driver(os_user, os_password,
ex_tenant_name=os_tenant_name,
ex_force_auth_url=os_url,
ex_force_auth_version='2.0_password')
libcloud.security.VERIFY_SSL_CERT = False
# fabric roles works only on env.host
# for us it is simplier to use env.host_string
def roles_host_string_based(*args):
supported_roles = args
def new_decorator(func):
def func_wrapper(*args, **kwargs):
for role in supported_roles:
role_hosts = [r[1] for r in env.roledefs.items() if r[0] == role][0]
if env.host_string in role_hosts:
func(*args, **kwargs)
return func_wrapper
return new_decorator
def create_cluster():
external_sec_group = _create_external_access_sg(cluster_external_access_sg_name)
internal_sec_group = _create_cluster_internal_sg(cluster_security_group_name)
sec_groups = [external_sec_group, internal_sec_group]
# create a VM
nodes = []
for i in range(0, cluster_num_of_nodes):
node_name = _get_node_name(node_name_prefix, i)
n = _create_instance(cluster_name, node_name, sec_groups)
nodes.append(n)
n_and_ips = os_conn.wait_until_running(nodes)
_generate_ssh_config(n_and_ips)
_generate_host_file(n_and_ips)
_generate_private_ips_file(n_and_ips)
def _create_external_access_sg(sec_group_name):
sg = _find_sg_by_name(sec_group_name)
if not sg:
sec_group = os_conn.ex_create_security_group(
name=sec_group_name,
description="External access to leads project demo cluster"
)
_create_external_sg_rules(sec_group, cluster_external_access_ports)
else:
assert len(sg) == 1
sec_group = sg[0]
return sec_group
def _find_sg_by_name(sec_group_name):
all_sec_groups = os_conn.ex_list_security_groups()
return [s for s in all_sec_groups if s.name == sec_group_name]
def _create_external_sg_rules(sec_group, ports):
for port in ports:
os_conn.ex_create_security_group_rule(
sec_group,
ip_protocol='tcp',
from_port=port,
to_port=port,
cidr='0.0.0.0/0'
)
def _create_cluster_internal_sg(sec_group_name):
sg = _find_sg_by_name(sec_group_name)
if not sg:
sec_group = os_conn.ex_create_security_group(
name=sec_group_name,
description="Internal for leads project demo cluster")
_create_security_group_rules(sec_group, cluster_port_communication)
else:
assert len(sg) == 1
sec_group = sg[0]
return sec_group
def _create_security_group_rules(sec_group, ports):
for port in ports:
os_conn.ex_create_security_group_rule(
sec_group,
ip_protocol='tcp',
from_port=port,
to_port=port,
source_security_group=sec_group
)
def _create_instance(cluster_name, node_name, sec_groups):
"""
"""
existing_node = _find_node_by_name(cluster_name, node_name)
if not existing_node:
img = _get_image(image_name)
size = _get_flavor(node_flavor)
primary_ssh_key = _get_primary_ssh_key(cluster_primary_ssh_key)
args = {'name': node_name, 'image': img, 'size': size,
'ex_keyname': primary_ssh_key.name, 'ex_security_groups': sec_groups,
'ex_metadata': node_metadata}
if cluster_additinal_ssh_keys:
sec_ssh_key_cloud_init = _get_cloud_init_with_sec_ssh_keys(cluster_additinal_ssh_keys)
args['ex_userdata'] = sec_ssh_key_cloud_init
args['ex_config_drive'] = True
node = os_conn.create_node(**args)
else:
node = existing_node[0]
return node
def _find_node_by_name(cluser_name, node_name):
all_nodes = os_conn.list_nodes()
node = [n for n in all_nodes if n.name == node_name]
assert len(node) == 1 or len(node) == 0
return node
def _get_image(img_name):
all_images = os_conn.list_images()
img = [i for i in all_images if i.name == img_name]
assert len(img) == 1
return img[0]
def _get_flavor(flavor_name):
all_sizes = os_conn.list_sizes()
size = [s for s in all_sizes if s.name == flavor_name]
assert len(size) == 1
return size[0]
def _get_primary_ssh_key(key_name):
return os_conn.get_key_pair(key_name)
def _get_cloud_init_with_sec_ssh_keys(ssh_keys):
cloud_init_content = """#cloud-config
ssh_authorized_keys:"""
for sk in ssh_keys:
cloud_init_content = cloud_init_content + "\n - " + sk
return cloud_init_content
def _generate_ssh_config(nodes):
"""
"""
ssh_gateway = os_url.split(":")[1].replace("/", "").replace('identity', 'ssh').replace('-', '.')
template = """
Host {0}
Hostname {1}
ProxyCommand ssh forward@{2} nc -q0 %h %p
Port 22
User ubuntu
"""
cluster_ssh_config = ""
for n in nodes:
entry = template.format(n[0].name, n[0].private_ips[0], ssh_gateway)
cluster_ssh_config = cluster_ssh_config + entry + "\n"
with open("cluster_ssh_config", 'w') as f:
f.write(cluster_ssh_config)
f.write("\n")
return "./cluster_ssh_config"
def _generate_host_file(n_and_ips):
c_hosts = [n[0].name for n in n_and_ips]
with open("cluster_hosts", 'w') as f:
f.write(",".join(c_hosts))
def _generate_private_ips_file(n_and_ips):
private_ips = [n[0].private_ips[0] for n in n_and_ips]
with open("cluster_private_ips", 'w') as f:
f.write(",".join(private_ips))
@parallel
def install_infinispan():
"""
"""
_install_jdk()
if not exists("infinispan.tgz"):
run("wget '" + infinispan_package_url+"' -O infinispan.tgz")
run("echo '" + infinispan_package_url+"' > infinispan.INFO")
if not exists("infinispan-server-7.0.1-SNAPSHOT"):
run("tar zxvf infinispan.tgz")
content = _get_infinispan_config()
tmp_file = _save_tmp_infinispan_config_file(content)
_upload_with_scp(
tmp_file,
"infinispan-server-7.0.1-SNAPSHOT/standalone/configuration/infinispan-config.xml"
)
_install_initd_script()
def _install_jdk():
sudo("sudo apt-get update")
sudo("sudo apt-get install -yyf openjdk-7-jdk")
def _get_infinispan_config():
"""
"""
with open("templates/infinispan-config_template.xml", "r") as f:
infinispan_config_template = f.read()
config = infinispan_config_template.replace("@NODE_IP@", env.host)
cluster_private_ips = _get_cluster_private_ips()
config = config.replace("@TCPPING.initial_hosts@", cluster_private_ips)
return config
def _get_cluster_private_ips():
with open("cluster_private_ips", 'r') as f:
private_ips = f.read().split(",")
result = [p_i + "[55200]" for p_i in private_ips]
result = ",".join(result)
return result
def _save_tmp_infinispan_config_file(content):
tmp_file_name = "tmp_" + env.host + "infinispan-config.xml"
with open(tmp_file_name, "w") as f:
f.write(content)
return tmp_file_name
def _install_initd_script():
_upload_with_scp(
"templates/infinispan-server_template.sh",
"infinispan-server-7.0.1-SNAPSHOT/infinispan-server.sh"
)
sudo("cp ~/infinispan-server-7.0.1-SNAPSHOT/infinispan-server.sh /etc/init.d/infinispan-server")
sudo("chmod 755 /etc/init.d/infinispan-server")
sudo("chown root:root /etc/init.d/infinispan-server")
sudo("sudo update-rc.d infinispan-server defaults")
sudo("sudo update-rc.d infinispan-server enable")
def _upload_with_scp(what, where):
with hide('running', 'stdout'):
local("scp -F {0} {1} {2}:{3}".format(env.ssh_config_path, what, env.host_string, where))
@parallel
def start_infinispan_service():
sudo("sudo service infinispan-server start", pty=True)
@parallel
def stop_infinispan_service():
sudo("sudo service infinispan-server stop", pty=True)
@parallel
def deploy_additioanl_ssh_keys():
authorized_file = "~/.ssh/authorized_keys"
for k in cluster_additinal_ssh_keys:
if not contains(authorized_file, k.strip()):
append(authorized_file, "\n")
append(authorized_file, k.strip())
@roles_host_string_based('masters', 'slaves')
@parallel
def install_hadoop():
"""
"""
pkg_file_name = _get_hadoop_pkg_name(hadoop_package_url)
dir_name = _get_hadoop_name(hadoop_package_url)
if not exists(pkg_file_name):
run("wget '{0}' -O {1}".format(hadoop_package_url, pkg_file_name))
if not exists(dir_name):
run("tar zxvf {0}".format(pkg_file_name))
hadoop_home = "/home/ubuntu/{0}".format(dir_name)
_hadoop_configure(hadoop_home)
def _get_hadoop_pkg_name(url):
return url.split("/")[-1]
def _get_hadoop_name(url):
pkg_file_name = _get_hadoop_pkg_name(url)
return pkg_file_name[:-len('.tar.gz')]
def _hadoop_configure(hadoop_home):
hadoop_master_priv_ip = get_node_private_ip(hadoop_master_node)
_hadoop_heap_configure(hadoop_home)
_hadoop_change_map_red_site(hadoop_home, hadoop_master_node)
_hadoop_change_core_site(hadoop_home, hadoop_master_priv_ip)
_hadoop_change_yarn_site(hadoop_home, hadoop_master_node)
_hadoop_change_HDFS_site(hadoop_home, hadoop_master_node)
_hadoop_change_masters(hadoop_home, hadoop_master_node)
_hadoop_change_slaves(hadoop_home, env.roledefs['slaves'])
_hadoop_prepare_etc_host()
def get_node_private_ip(node_name):
ns = _find_node_by_name(cluster_name, node_name)
if not ns:
error("No node is running with name {0}!".format(node_name))
else:
node = ns[0]
return node.private_ips[0]
@roles_host_string_based('masters', 'slaves')
def _hadoop_heap_configure(hadoop_home, new_heap_size=1000, old_heap_size=2000):
"""
Le Quoc Do - SE Group TU Dresden contribution
"""
filename = hadoop_home + '/etc/hadoop/hadoop-env.sh'
before = 'HADOOP_HEAPSIZE=' + str(new_heap_size)
after = 'HADOOP_HEAPSIZE=' + str(old_heap_size)
files.sed(filename, before, after, limit='')
files.uncomment(filename, 'HADOOP_HEAPSIZE')
@roles_host_string_based('masters', 'slaves')
def _hadoop_change_map_red_site(hadoop_home, master, map_task='8', reduce_task='6'):
"""
Based on input from Le Quoc Do - SE Group TU Dresden contribution
"""
before = '<configuration>'
after = """
<configuration>
<property>
<name>mapred.job.tracker</name>
<value>{0}:9001</value>
</property>
<property>
<name>mapred.map.tasks</name>
<value>{1}</value>
</property>
<property>
<name>mapred.reduce.tasks</name>
<value>{2}</value>
</property>
<property>
<name>mapred.system.dir</name>
<value>{3}/hdfs/mapreduce/system</value>
</property>
<property>
<name>mapred.local.dir</name>
<value>{3}/hdfs/mapreduce/local</value>
</property>
<property>
<name>mapreduce.framework.name</name>
<value>yarn</value>
</property>
""".format(master, map_task, reduce_task, hadoop_home)
with cd(hadoop_home + '/etc/hadoop/'):
run('cp mapred-site.xml.template mapred-site.xml')
filename = 'mapred-site.xml'
files.sed(filename, before, after.replace("\n", "\\n"), limit='')
@roles_host_string_based('masters', 'slaves')
def _hadoop_change_core_site(hadoop_home, master_ip):
"""
Based on input from Le Quoc Do - SE Group TU Dresden contribution
"""
content = """
<configuration>
<property>
<name>hadoop.tmp.dir</name>
<value>{0}/hdfs</value>
</property>
<property>
<name>fs.defaultFS</name>
<value>hdfs://{1}:9000</value>
</property>
<property>
<name>fs.default.name</name>
<value>hdfs://{1}:9000</value>
</property>
<property>
<name>mapred.job.tracker</name>
<value>{1}:9001</value>
</property>
</configuration>""".format(hadoop_home, master_ip)
filename = 'core-site.xml'
with cd(hadoop_home + '/etc/hadoop/'):
run("rm -f {0}; touch {0}".format(filename))
files.append(filename, content)
@roles_host_string_based('masters', 'slaves')
def _hadoop_change_yarn_site(hadoop_home, master):
filename = 'yarn-site.xml'
content = """
<configuration>
<property>
<name>yarn.nodemanager.aux-services</name>
<value>mapreduce_shuffle</value>
</property>
</configuration>"""
with cd(hadoop_home + '/etc/hadoop/'):
run("rm -f {0}; touch {0}".format(filename))
files.append(filename, content)
@roles_host_string_based('masters', 'slaves')
def _hadoop_change_HDFS_site(hadoop_home, master, replica='1', xcieversmax='10096'):
"""
Based on input from Le Quoc Do - SE Group TU Dresden contribution
"""
filename = 'hdfs-site.xml'
content = """
<configuration>
<property>
<name>dfs.name.dir</name>
<value>file://{0}/hdfs/name</value>
</property>
<property>
<name>dfs.data.dir</name>
<value>file://{0}/hdfs/data</value>
</property>
<property>
<name>dfs.replication</name>
<value>{1}</value>
</property>
<property>
<name>dfs.datanode.max.xcievers</name>
<value>{2}</value>
</property>
</configuration>
""".format(hadoop_home, replica, xcieversmax)
with cd(hadoop_home + '/etc/hadoop/'):
run("rm -f {0}; touch {0}".format(filename))
files.append(filename, content)
@roles_host_string_based('masters', 'slaves')
def _hadoop_change_masters(hadoop_home, master):
"""
Le Quoc Do - SE Group TU Dresden contribution
"""
filename = 'masters'
with cd(hadoop_home + '/etc/hadoop'):
run("rm -f masters; touch masters")
files.append(filename, master)
@roles_host_string_based('masters', 'slaves')
def _hadoop_change_slaves(hadoop_home, slaves):
"""
Le Quoc Do - SE Group TU Dresden contribution
"""
filename = 'slaves'
before = 'localhost'
after = ''
for slave in slaves:
after = after + slave + '\\n'
with cd(hadoop_home + '/etc/hadoop'):
files.sed(filename, before, after, limit='')
@roles_host_string_based('masters', 'slaves')
def _hadoop_prepare_etc_host():
with open('cluster_hosts', 'r') as f:
c_hostnames = f.read().split(',')
with open('cluster_private_ips', 'r') as f:
c_priv_ips = f.read().split(',')
for i in range(0, len(c_hostnames)):
entry = c_priv_ips[i] + " " + c_hostnames[i]
if not files.contains('/etc/hosts', entry):
files.append('/etc/hosts', entry, use_sudo=True)
def _get_hadoop_home():
return "/home/ubuntu/{0}".format(_get_hadoop_name(hadoop_package_url))
@roles_host_string_based('masters', 'slaves')
@serial
def start_hadoop_service():
"""
Hadoop: start service
"""
_hadoop_command_namenode("start")
_hadoop_command_datanode("start")
_hadoop_command_resource_mgmt("start")
_hadoop_command_node_manager("start")
def _command_hadoop_service(command):
hadoop_home = _get_hadoop_home()
with cd(hadoop_home):
run("./sbin/{0}-yarn.sh".format(action))
@roles_host_string_based('masters')
def _hadoop_command_namenode(action):
_execute_hadoop_command('$HADOOP_PREFIX/sbin/hadoop-daemon.sh --config $HADOOP_CONF_DIR'
' --script hdfs ' + action + ' namenode')
def _execute_hadoop_command(cmd):
hadoop_home = _get_hadoop_home()
with shell_env(JAVA_HOME='/usr/lib/jvm/java-7-openjdk-amd64',
HADOOP_PREFIX=hadoop_home,
HADOOP_CONF_DIR=hadoop_home + "/etc/hadoop",
HADOOP_YARN_HOME=hadoop_home):
run(cmd)
@roles_host_string_based('masters')
def _hadoop_command_datanode(action):
_execute_hadoop_command('$HADOOP_PREFIX/sbin/hadoop-daemon.sh --config $HADOOP_CONF_DIR'
' --script hdfs ' + action + ' datanode')
@roles_host_string_based('masters')
def _hadoop_command_resource_mgmt(action):
_execute_hadoop_command('$HADOOP_YARN_HOME/sbin/yarn-daemon.sh'
' --config $HADOOP_CONF_DIR ' + action + ' resourcemanager')
@roles_host_string_based('masters', 'slaves')
def _hadoop_command_node_manager(action):
_execute_hadoop_command('$HADOOP_YARN_HOME/sbin/yarn-daemon.sh'
' --config $HADOOP_CONF_DIR ' + action + ' nodemanager')
@serial
def stop_hadoop_service():
"""
Hadoop: stop service
"""
_hadoop_command_namenode("stop")
_hadoop_command_datanode("stop")
_hadoop_command_resource_mgmt("stop")
_hadoop_command_node_manager("stop")
@roles_host_string_based('masters')
def hadoop_format():
hadoop_home = _get_hadoop_home()
with settings(warn_only=True):
with cd(hadoop_home):
with shell_env(JAVA_HOME='/usr/lib/jvm/java-7-openjdk-amd64',
HADOOP_PREFIX=hadoop_home):
run('echo "Y" | bin/hdfs namenode -format')
run('bin/hdfs datanode -regular')
def show_running_leads_clusters():
"""
"""
x = PrettyTable(["Cluster name", "Node name", "Node UUID"])
for inst in os_conn.list_nodes():
md = os_conn.ex_get_metadata(inst)
if "leads_cluster_name" in md:
row = []
row.append(md["leads_cluster_name"])
row.append(inst.name)
row.append(inst.id)
x.add_row(row)
print x