1 files changed, 89 insertions, 0 deletions
diff --git a/glances/exports/elasticsearch/__init__.py b/glances/exports/elasticsearch/__init__.py
new file mode 100644
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+++ b/glances/exports/elasticsearch/__init__.py
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+# -*- coding: utf-8 -*-
+#
+# This file is part of Glances.
+#
+# SPDX-FileCopyrightText: 2022 Nicolas Hennion <nicolas@nicolargo.com>
+#
+# SPDX-License-Identifier: LGPL-3.0-only
+#
+
+"""ElasticSearch interface class."""
+
+import sys
+from datetime import datetime
+
+from glances.logger import logger
+from glances.exports.export import GlancesExport
+
+from elasticsearch import Elasticsearch, helpers
+
+
+class Export(GlancesExport):
+
+    """This class manages the ElasticSearch (ES) export module."""
+
+    def __init__(self, config=None, args=None):
+        """Init the ES export IF."""
+        super(Export, self).__init__(config=config, args=args)
+
+        # Mandatory configuration keys (additional to host and port)
+        self.index = None
+
+        # Load the ES configuration file
+        self.export_enable = self.load_conf(
+            'elasticsearch', mandatories=['scheme', 'host', 'port', 'index'], options=[]
+        )
+        if not self.export_enable:
+            sys.exit(2)
+
+        # Init the ES client
+        self.client = self.init()
+
+    def init(self):
+        """Init the connection to the ES server."""
+        if not self.export_enable:
+            return None
+
+        try:
+            es = Elasticsearch(hosts=['{}://{}:{}'.format(self.scheme, self.host, self.port)])
+        except Exception as e:
+            logger.critical(
+                "Cannot connect to ElasticSearch server %s://%s:%s (%s)" % (self.scheme, self.host, self.port, e)
+            )
+            sys.exit(2)
+
+        if not es.ping():
+            logger.critical("Cannot ping the ElasticSearch server %s://%s:%s" % (self.scheme, self.host, self.port))
+            sys.exit(2)
+        else:
+            logger.info("Connected to the ElasticSearch server %s://%s:%s" % (self.scheme, self.host, self.port))
+
+        return es
+
+    def export(self, name, columns, points):
+        """Write the points to the ES server."""
+        logger.debug("Export {} stats to ElasticSearch".format(name))
+
+        # Generate index name with the index field + current day
+        index = '{}-{}'.format(self.index, datetime.utcnow().strftime("%Y.%m.%d"))
+
+        # Create DB input
+        # https://elasticsearch-py.readthedocs.io/en/master/helpers.html
+        actions = []
+        dt_now = datetime.utcnow().isoformat('T')
+        action = {
+            "_index": index,
+            "_id": '{}.{}'.format(name, dt_now),
+            "_type": 'glances-{}'.format(name),
+            "_source": {"plugin": name, "timestamp": dt_now},
+        }
+        action['_source'].update(zip(columns, [str(p) for p in points]))
+        actions.append(action)
+
+        logger.debug("Exporting the following object to elasticsearch: {}".format(action))
+
+        # Write input to the ES index
+        try:
+            helpers.bulk(self.client, actions)
+        except Exception as e:
+            logger.error("Cannot export {} stats to ElasticSearch ({})".format(name, e))