allow to use one central cfg file on NFS

base.py

@@ -24,7 +24,7 @@
 import sys
 import json
 import os
-from os.path import expanduser, basename, exists
+from os.path import expanduser, basename, exists, isdir
 import subprocess
 import time
 import re
@@ -69,8 +69,12 @@ def printTable(headers, items, printfunc, minlen=0, rjust=False):
 def get_config():
     parser = ConfigParser(interpolation=None)
     parser.optionxform = str
-    parser.read(expanduser('~/servicemanager.cfg'))
-    return parser
+    cfgfiles = '/sq_sw/linse/servicemanager.cfg', expanduser('~/servicemanager.cfg')
+    for cfgfile in cfgfiles:
+        if isdir(cfgfile):
+            parser.read(cfgfile)
+            return parser
+    raise FileNotFoundError(f'can not find cfg file in {cfgfiles}')
 
 
 class ServiceManager:
@@ -85,10 +89,10 @@ class ServiceManager:
     USAGE = None
     main_ins = None
     single_ins = None
+    is_remote = False
 
     def __init__(self):
         self.env = {}
-        self.remote_hosts = {}
         self.commands = {}
         # self.revcmd = {}
         self.info = {}
@@ -136,12 +140,12 @@ class ServiceManager:
             value = value.replace('<INS>', ins)
             return ':'.join(expanduser(p % dict(ins=ins)) for p in value.split(':'))
 
+        this_ins = os.environ.get('Instrument') or basename(expanduser('~'))
         for ins in parser.sections():
             section = dict(parser[ins])
-            if ins == 'MAIN':
-                ins = self.main_ins = os.environ.get('Instrument') or basename(expanduser('~'))
-            if 'REMOTE_HOST' in section:
-                self.remote_hosts[ins] = section['REMOTE_HOST']
+            if ins == this_ins:
+                self.main_ins = this_ins
+            self.is_remote = socket.gethostname().split('.')[0] != section.get('host')
             command = section.get('%s_command' % self.group)
             self.revcmd[command] = self.group
             nr = section.get(self.group)
@@ -151,7 +155,7 @@ class ServiceManager:
                 env = {k: get_subs(section, k, ins, nr) for k in section if k.isupper()}
                 result[ins] = services
                 self.env[ins] = env
-                cmd =  command.replace('~', expanduser('~'))
+                cmd = command.replace('~', expanduser('~'))
                 if cmd.startswith('PY '):
                     cmd = env.get('PY', 'python3') + cmd[2:]
                 self.commands[ins] = cmd
@@ -239,7 +243,7 @@ class ServiceManager:
         if ins not in self.info:
             raise KeyError("don't know %r" % ins)
         sp_ins = ' ' + ins if ins != self.main_ins else ''
-        if ins in self.remote_hosts:
+        if self.is_remote:
             return
         if not self.get_procs().get(ins, {}).get(service):
             startcmd = '%s start%s' % (self.group, sp_ins)
@@ -302,10 +306,15 @@ class ServiceManager:
         if not ins:
             raise UsageError('need instance')
         env = self.env[ins]
-        startdir = env.get('%s_ROOT' % gr, '')
-        if startdir not in sys.path:
-            sys.path.insert(0, startdir)
-        return startdir, env
+        start_dir_path = env.get('%s_ROOT' % gr, '')
+        for start_dir in start_dir_path.split(':'):
+            if isdir(start_dir):
+                break
+        else:
+            raise FileNotFoundError(f'can not find any of {start_dir_path}')
+        if start_dir not in sys.path:
+            sys.path.insert(0, start_dir)
+        return start_dir, env
 
     def do_start(self, ins, service=None, cfg='', restart=False, wait=False, logger=None, opts=''):
         if not ins:
@@ -336,7 +345,7 @@ class ServiceManager:
             service_ports = self.get_ins_info(ins)
         except (KeyError, ValueError):
             raise UsageError('do not know %r' % ins)
-        if ins in self.remote_hosts:
+        if self.is_remote:
             raise UsageError('can not start, %s is running on a remote host' % self.group)
         services = list(service_ports) if service is None else [service]
         if restart: