Installer adapters

This tool might be used by any project in OPNFV
to retrieve information about the deployed
OpenStack nodes.
It is python based and using paramiko.

It can:
  - get info about deployment
  - get the info about the nodes (ip, mac, ...)
  - stablish ssh connection even with ProxyCommand option
  - run remote commands
  - scp to/from nodes (i.e. fetch credentials from controller)

Added FuelAdapter as an example.

JIRA: RELENG-149
JIRA: RELENG-150

Change-Id: I49d8be96d754e0950e337aa2f88172341446fdd4
Signed-off-by: jose.lausuch <jose.lausuch@ericsson.com>

1 files changed, 130 insertions, 0 deletions

diff --git a/utils/installer-adapter/SSHUtils.py b/utils/installer-adapter/SSHUtils.py
new file mode 100644
index 000000000..9c92a3be1
--- /dev/null
+++ b/utils/installer-adapter/SSHUtils.py
@@ -0,0 +1,130 @@
+##############################################################################
+# Copyright (c) 2015 Ericsson AB and others.
+# Author: Jose Lausuch (jose.lausuch@ericsson.com)
+# All rights reserved. This program and the accompanying materials
+# are made available under the terms of the Apache License, Version 2.0
+# which accompanies this distribution, and is available at
+# http://www.apache.org/licenses/LICENSE-2.0
+##############################################################################
+
+
+import paramiko
+from scp import SCPClient
+import time
+import RelengLogger as rl
+
+
+class SSH_Connection:
+
+    def __init__(self,
+                 host,
+                 user,
+                 password,
+                 use_system_keys=True,
+                 private_key=None,
+                 use_proxy=False,
+                 proxy_host=None,
+                 proxy_user=None,
+                 proxy_password=None,
+                 timeout=10):
+        self.host = host
+        self.user = user
+        self.password = password
+        self.use_system_keys = use_system_keys
+        self.private_key = private_key
+        self.use_proxy = use_proxy
+        self.proxy_host = proxy_host
+        self.proxy_user = proxy_user
+        self.proxy_password = proxy_password
+        self.timeout = timeout
+        paramiko.util.log_to_file("paramiko.log")
+        self.logger = rl.Logger("SSHUtils").getLogger()
+
+    def connect(self):
+        client = paramiko.SSHClient()
+        if self.use_system_keys:
+            client.load_system_host_keys()
+        elif self.private_key:
+            client.load_host_keys(self.private_key)
+        else:
+            client.load_host_keys('/dev/null')
+
+        client.set_missing_host_key_policy(paramiko.AutoAddPolicy())
+
+        t = self.timeout
+        proxy = None
+        if self.use_proxy:
+            proxy_command = 'ssh -o UserKnownHostsFile=/dev/null '
+            '-o StrictHostKeyChecking=no %s@%s -W %s:%s' % (self.proxy_user,
+                                                            self.proxy_host,
+                                                            self.host, 22)
+            proxy = paramiko.ProxyCommand(proxy_command)
+            self.logger.debug("Proxy command: %s" % proxy_command)
+        while t > 0:
+            try:
+                self.logger.debug(
+                    "Trying to stablish ssh connection to %s..." % self.host)
+                client.connect(self.host,
+                               username=self.user,
+                               password=self.password,
+                               look_for_keys=True,
+                               sock=proxy,
+                               pkey=self.private_key,
+                               timeout=self.timeout)
+                self.logger.debug("Successfully connected to %s!" % self.host)
+                return client
+            except:
+                time.sleep(1)
+                t -= 1
+
+        if t == 0:
+            return None
+
+    def scp_put(self, local_path, remote_path):
+        client = self.connect()
+        if client:
+            scp = SCPClient(client.get_transport())
+            try:
+                scp.put(local_path, remote_path)
+                client.close()
+                return 0
+            except Exception, e:
+                self.logger.error(e)
+                client.close()
+                return 1
+        else:
+            self.logger.error("Cannot stablish ssh connection.")
+
+    def scp_get(self, local_path, remote_path):
+        client = self.connect()
+        if client:
+            scp = SCPClient(client.get_transport())
+            try:
+                scp.get(remote_path, local_path)
+                client.close()
+                return 0
+            except Exception, e:
+                self.logger.error(e)
+                client.close()
+                return 1
+        else:
+            self.logger.error("Cannot stablish ssh connection.")
+            return 1
+
+    def run_remote_cmd(self, command):
+        client = self.connect()
+        if client:
+            try:
+                stdin, stdout, stderr = client.exec_command(command)
+                out = ''
+                for line in stdout.readlines():
+                    out += line
+                err = stderr.readlines()
+                client.close()
+                return out, err
+            except:
+                client.close()
+                return 1
+        else:
+            self.logger.error("Cannot stablish ssh connection.")
+            return 1