X-Git-Url: https://code.grnet.gr/git/ganeti-local/blobdiff_plain/318212085b7bcf4bb70a1e9c47d2d7507d2dc35b..bd2475e20f98c9be2bfb14e14d09884014146f90:/lib/ssh.py

diff --git a/lib/ssh.py b/lib/ssh.py
index e891314..7b2e7ed 100644
--- a/lib/ssh.py
+++ b/lib/ssh.py
@@ -52,18 +52,13 @@ def GetUserFiles(user, mkdir=False):
   if not user_dir:
     raise errors.OpExecError("Cannot resolve home of user %s" % user)
 
-  ssh_dir = os.path.join(user_dir, ".ssh")
-  if not os.path.lexists(ssh_dir):
-    if mkdir:
-      try:
-        os.mkdir(ssh_dir, 0700)
-      except EnvironmentError, err:
-        raise errors.OpExecError("Can't create .ssh dir for user %s: %s" %
-                                 (user, str(err)))
+  ssh_dir = utils.PathJoin(user_dir, ".ssh")
+  if mkdir:
+    utils.EnsureDirs([(ssh_dir, constants.SECURE_DIR_MODE)])
   elif not os.path.isdir(ssh_dir):
-    raise errors.OpExecError("path ~%s/.ssh is not a directory" % user)
+    raise errors.OpExecError("Path %s is not a directory" % ssh_dir)
 
-  return [os.path.join(ssh_dir, base)
+  return [utils.PathJoin(ssh_dir, base)
           for base in ["id_dsa", "id_dsa.pub", "authorized_keys"]]
 
 
@@ -75,7 +70,7 @@ class SshRunner:
     self.cluster_name = cluster_name
 
   def _BuildSshOptions(self, batch, ask_key, use_cluster_key,
-                       strict_host_check):
+                       strict_host_check, private_key=None, quiet=True):
     """Builds a list with needed SSH options.
 
     @param batch: same as ssh's batch option
@@ -84,6 +79,8 @@ class SshRunner:
     @param use_cluster_key: if True, use the cluster name as the
         HostKeyAlias name
     @param strict_host_check: this makes the host key checking strict
+    @param private_key: use this private key instead of the default
+    @param quiet: whether to enable -q to ssh
 
     @rtype: list
     @return: the list of options ready to use in L{utils.RunCmd}
@@ -94,11 +91,18 @@ class SshRunner:
       "-oHashKnownHosts=no",
       "-oGlobalKnownHostsFile=%s" % constants.SSH_KNOWN_HOSTS_FILE,
       "-oUserKnownHostsFile=/dev/null",
+      "-oCheckHostIp=no",
       ]
 
     if use_cluster_key:
       options.append("-oHostKeyAlias=%s" % self.cluster_name)
 
+    if quiet:
+      options.append("-q")
+
+    if private_key:
+      options.append("-i%s" % private_key)
+
     # TODO: Too many boolean options, maybe convert them to more descriptive
     # constants.
 
@@ -114,15 +118,21 @@ class SshRunner:
       else:
         options.append("-oStrictHostKeyChecking=no")
 
-    elif ask_key:
-      options.extend([
-        "-oStrictHostKeyChecking=ask",
-        ])
+    else:
+      # non-batch mode
+
+      if ask_key:
+        options.append("-oStrictHostKeyChecking=ask")
+      elif strict_host_check:
+        options.append("-oStrictHostKeyChecking=yes")
+      else:
+        options.append("-oStrictHostKeyChecking=no")
 
     return options
 
   def BuildCmd(self, hostname, user, command, batch=True, ask_key=False,
-               tty=False, use_cluster_key=True, strict_host_check=True):
+               tty=False, use_cluster_key=True, strict_host_check=True,
+               private_key=None, quiet=True):
     """Build an ssh command to execute a command on a remote node.
 
     @param hostname: the target host, string
@@ -135,15 +145,18 @@ class SshRunner:
     @param use_cluster_key: whether to expect and use the
         cluster-global SSH key
     @param strict_host_check: whether to check the host's SSH key at all
+    @param private_key: use this private key instead of the default
+    @param quiet: whether to enable -q to ssh
 
     @return: the ssh call to run 'command' on the remote host.
 
     """
-    argv = [constants.SSH, "-q"]
+    argv = [constants.SSH]
     argv.extend(self._BuildSshOptions(batch, ask_key, use_cluster_key,
-                                      strict_host_check))
+                                      strict_host_check, private_key,
+                                      quiet=quiet))
     if tty:
-      argv.append("-t")
+      argv.extend(["-t", "-t"])
     argv.extend(["%s@%s" % (user, hostname), command])
     return argv
 
@@ -179,7 +192,7 @@ class SshRunner:
       logging.error("File %s does not exist", filename)
       return False
 
-    command = [constants.SCP, "-q", "-p"]
+    command = [constants.SCP, "-p"]
     command.extend(self._BuildSshOptions(True, False, True, True))
     command.append(filename)
     command.append("%s:%s" % (node, filename))
@@ -212,7 +225,7 @@ class SshRunner:
         - detail: string with details
 
     """
-    retval = self.Run(node, 'root', 'hostname')
+    retval = self.Run(node, 'root', 'hostname --fqdn')
 
     if retval.failed:
       msg = "ssh problem"
@@ -221,7 +234,7 @@ class SshRunner:
         msg += ": %s" % output
       else:
         msg += ": %s (no output)" % retval.fail_reason
-      logging.error("Command %s failed: %s" % (retval.cmd, msg))
+      logging.error("Command %s failed: %s", retval.cmd, msg)
       return False, msg
 
     remotehostname = retval.stdout.strip()
@@ -230,7 +243,7 @@ class SshRunner:
       if node.startswith(remotehostname + "."):
         msg = "hostname not FQDN"
       else:
-        msg = "hostname mistmatch"
+        msg = "hostname mismatch"
       return False, ("%s: expected %s but got %s" %
                      (msg, node, remotehostname))