add ideas about remote exec/copy

Signed-off-by: Nico Schottelius <nico@kr.ethz.ch>

doc/dev/logs/2011-10-06.ssh_scp_sudo_chroot

@@ -0,0 +1,45 @@
+Commands needed:
+   conf/cmd/remote_exec
+   conf/cmd/copy
+
+If ! conf/cmd/remote_exec:
+   use builtin
+If ! conf/cmd/copy:
+   use builtin
+
+   -> Depend on session!
+
+Builtin:
+        cdist.exec.run_or_fail(["scp", "-qr", source, 
+                                self.remote_user + "@" + 
+                                self.target_host + ":" + 
+                                destination])
+
+self.remote_prefix = ["ssh", self.remote_user + "@" + self.target_host]
+
+        self.remote_user = remote_user
+        self.remote_prefix = remote_prefix
+
+--------------------------------------------------------------------------------
+What is in a session?
+
+   base_dir
+   target_host
+
+--------------------------------------------------------------------------------
+remote_user 
+   pseudo-static, can be hardcoded again
+--------------------------------------------------------------------------------
+
+Result:
+
+os.environ['__remote_exec'] = ["ssh", "-l", "root" ]
+os.environ['__remote_copy'] = ["scp", "-o" "User=root" ]
+
+args for __remote_exec
+   $1 = hostname
+   $2 - ...  = stuff to be executed in /bin/sh on remote side
+
+args for __remote_copy
+   $1 = file here
+   $2 = hostname:destination