From 2f374307ceb6cac8db540115f9a13208256e4542 Mon Sep 17 00:00:00 2001 From: Vijay Avuthu Date: Wed, 31 Jan 2018 12:37:55 +0530 Subject: Adding function: are_nodes_online Description : Function to check whether given nodes are online or not Change-Id: I92a40ac1a6bcdbdfb845413902dd0a798c68ed5c Signed-off-by: Vijay Avuthu --- glustolibs-misc/glustolibs/misc/misc_libs.py | 36 ++++++++++++++++++++++++++++ 1 file changed, 36 insertions(+) (limited to 'glustolibs-misc/glustolibs') diff --git a/glustolibs-misc/glustolibs/misc/misc_libs.py b/glustolibs-misc/glustolibs/misc/misc_libs.py index 62b854c10..c8aba410c 100644 --- a/glustolibs-misc/glustolibs/misc/misc_libs.py +++ b/glustolibs-misc/glustolibs/misc/misc_libs.py @@ -373,3 +373,39 @@ def install_arequal(list_of_nodes): g.log.info("arequal-checksum is installed on nodes: %s" % list_of_nodes) return _rc + + +def are_nodes_online(nodes): + """ + check whether nodes are online or not + + Args: + nodes ( str|list ) : Node/Nodes to check whether online or not + + Returns: + tuple : Tuple containing two elements (ret, node_results). + The first element ret is of type 'bool', True if all nodes + are online. False otherwise. + + The second element 'node_results' is of type dictonary and it + contains the node and its corresponding result. If node is online + then the result contains True else False. + """ + + if isinstance(nodes, str): + nodes = [nodes] + + node_results = {} + for node in nodes: + cmd = "ping %s -c1" % node + ret, out, err = g.run_local(cmd) + if ret: + g.log.info("%s is offline" % node) + node_results[node] = False + else: + g.log.info("%s is online" % node) + node_results[node] = True + + ret = all(node_results.values()) + + return ret, node_results -- cgit