Minor changes

clusterman/__main__.py

@@ -18,6 +18,9 @@ def main():
     # List
     node_cmd_list=node_subparsers.add_parser("list")
     node_cmd_list.add_argument("-g", "--group" ,help="Group to list")
+    # Exec
+    node_cmd_list=node_subparsers.add_parser("exec")
+    node_cmd_list.add_argument("cmd",help="Command to run",nargs=argparse.REMAINDER)
     
     ##### Frontend commands #####
     target_frontend = subparsers.add_parser("frontend")
@@ -54,6 +57,8 @@ def main():
                 node.ls(args.group)
             else:
                 node.ls()
+        elif args.command == "exec":
+            node.exec(args.cmd)
         else:
             target_node.print_help(sys.stderr)
             sys.exit(1)  

clusterman/commands/frontend.py

@@ -1,28 +1,24 @@
 import os, json, re
+from datetime import datetime
 from clusterman.config import CONF
-from clusterman.commands.node import get_node_in_group
+import clusterman.commands.node as node
 
 def info():
-    nodes=None
+    nodes=node.get_node_list()
-    if os.path.exists(CONF.NODE_FILE):
-        with open(CONF.NODE_FILE) as f:
-            nodes=json.load(f)
-
     cache=None
     if os.path.exists(CONF.CACHE_FILE):
         with open(CONF.CACHE_FILE) as f:
             cache=json.load(f)
 
     # Node 
-    print("Node count: ",end="")
+    print("Node count: "+str(len(nodes)))
-    print("NA") if nodes==None else print(len(nodes))
 
     # Groups
     print("Node groups: ",end="")
     if len(CONF["cluster"]["groups"]) > 0:
         content=list()
         for group in CONF["cluster"]["groups"].keys():
-            content.append("{}({})".format(group,len(get_node_in_group(group))))
+            content.append("{}({})".format(group,len(node.get_node_in_group(group))))
         print(", ".join(content))
     else:
         print("NA")
@@ -31,7 +27,8 @@ def info():
     # Cache
     print("Last node scan: ",end="")
     if cache!=None and "last_scan" in CONF["cache"]:
-        print(CONF["cache"]["last_scan"])
+        dt=datetime.fromtimestamp(int(CONF["cache"]["last_scan"]), tz=None)
+        print(dt)
     else:
         print("NA")
 

clusterman/commands/node.py

@@ -1,16 +1,20 @@
 import os, json, time, re, sys, subprocess
 from clusterman.config import CONF
 
-
+def get_node_list():
-def get_node_in_group(group):
     nodes_path=CONF.NODE_FILE
-    nodes=None
     if os.path.exists(nodes_path):
         with open(nodes_path) as f:
             nodes=json.load(f)
+            return nodes
+    return list()
+
+
+def get_node_in_group(group):
+    nodes=get_node_list()
     # Search
     ingroup=list()
-    if nodes is not None and group in CONF["cluster"]["groups"]:
+    if len(nodes) > 0 and group in CONF["cluster"]["groups"]:
         patterns=[re.compile(pattern) for pattern in CONF["cluster"]["groups"][group]]
         for node in nodes:
             for pattern in patterns:
@@ -18,16 +22,11 @@ def get_node_in_group(group):
                     ingroup.append(node)
                     break;
     return ingroup
-        
-    
 
 def ls(group=None):
     nodes_path=CONF.NODE_FILE
-    nodes=None
+    nodes=get_node_list()
-    if os.path.exists(nodes_path):
+    if len(nodes)<=0:
-        with open(nodes_path) as f:
-            nodes=json.load(f)
-    else:
         print("Please perform a scan before")
         exit(0)
     # Print nodes
@@ -88,3 +87,9 @@ def check(timeout):
             print("Success: All nodes are reachable")
         else:
             print("Error: Some of your nodes are not reachable")
+
+def exec(command):
+    print(["ssh", "-i", CONF["ssh_key_path"], command])
+    for ip in get_node_list():
+        print("----- Node {} -----".format(ip))
+        subprocess.run(["ssh", "-i", CONF["ssh_key_path"],"root@"+ip, " ".join(command)])