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community.general/plugins/modules/database/misc/redis_info.py

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#!/usr/bin/python
# -*- coding: utf-8 -*-
# Copyright: (c) 2020, Pavlo Bashynskyi (@levonet) <levonet@gmail.com>
# GNU General Public License v3.0+ (see COPYING or https://www.gnu.org/licenses/gpl-3.0.txt)
from __future__ import absolute_import, division, print_function
__metaclass__ = type
DOCUMENTATION = r'''
---
module: redis_info
short_description: Gather information about Redis servers
version_added: '0.2.0'
description:
- Gathers information and statistics about Redis servers.
options:
login_host:
description:
- The host running the database.
type: str
default: localhost
login_port:
description:
- The port to connect to.
type: int
default: 6379
login_password:
description:
- The password used to authenticate with, when authentication is enabled for the Redis server.
type: str
notes:
- Requires the redis-py Python package on the remote host. You can
install it with pip (C(pip install redis)) or with a package manager.
U(https://github.com/andymccurdy/redis-py)
seealso:
2020-06-25 13:34:46 +02:00
- module: community.general.redis
requirements: [ redis ]
author: "Pavlo Bashynskyi (@levonet)"
'''
EXAMPLES = r'''
- name: Get server information
community.general.redis_info:
register: result
- name: Print server information
debug:
var: result.info
'''
RETURN = r'''
info:
description: The default set of server information sections U(https://redis.io/commands/info).
returned: success
type: dict
sample: {
"active_defrag_hits": 0,
"active_defrag_key_hits": 0,
"active_defrag_key_misses": 0,
"active_defrag_misses": 0,
"active_defrag_running": 0,
"allocator_active": 932409344,
"allocator_allocated": 932062792,
"allocator_frag_bytes": 346552,
"allocator_frag_ratio": 1.0,
"allocator_resident": 947253248,
"allocator_rss_bytes": 14843904,
"allocator_rss_ratio": 1.02,
"aof_current_rewrite_time_sec": -1,
"aof_enabled": 0,
"aof_last_bgrewrite_status": "ok",
"aof_last_cow_size": 0,
"aof_last_rewrite_time_sec": -1,
"aof_last_write_status": "ok",
"aof_rewrite_in_progress": 0,
"aof_rewrite_scheduled": 0,
"arch_bits": 64,
"atomicvar_api": "atomic-builtin",
"blocked_clients": 0,
"client_recent_max_input_buffer": 4,
"client_recent_max_output_buffer": 0,
"cluster_enabled": 0,
"config_file": "",
"configured_hz": 10,
"connected_clients": 4,
"connected_slaves": 0,
"db0": {
"avg_ttl": 1945628530,
"expires": 16,
"keys": 3341411
},
"evicted_keys": 0,
"executable": "/data/redis-server",
"expired_keys": 9,
"expired_stale_perc": 1.72,
"expired_time_cap_reached_count": 0,
"gcc_version": "9.2.0",
"hz": 10,
"instantaneous_input_kbps": 0.0,
"instantaneous_ops_per_sec": 0,
"instantaneous_output_kbps": 0.0,
"keyspace_hits": 0,
"keyspace_misses": 0,
"latest_fork_usec": 0,
"lazyfree_pending_objects": 0,
"loading": 0,
"lru_clock": 11603632,
"master_repl_offset": 118831417,
"master_replid": "0d904704e424e38c3cd896783e9f9d28d4836e5e",
"master_replid2": "0000000000000000000000000000000000000000",
"maxmemory": 0,
"maxmemory_human": "0B",
"maxmemory_policy": "noeviction",
"mem_allocator": "jemalloc-5.1.0",
"mem_aof_buffer": 0,
"mem_clients_normal": 49694,
"mem_clients_slaves": 0,
"mem_fragmentation_bytes": 12355480,
"mem_fragmentation_ratio": 1.01,
"mem_not_counted_for_evict": 0,
"mem_replication_backlog": 1048576,
"migrate_cached_sockets": 0,
"multiplexing_api": "epoll",
"number_of_cached_scripts": 0,
"os": "Linux 3.10.0-862.14.4.el7.x86_64 x86_64",
"process_id": 1,
"pubsub_channels": 0,
"pubsub_patterns": 0,
"rdb_bgsave_in_progress": 0,
"rdb_changes_since_last_save": 671,
"rdb_current_bgsave_time_sec": -1,
"rdb_last_bgsave_status": "ok",
"rdb_last_bgsave_time_sec": -1,
"rdb_last_cow_size": 0,
"rdb_last_save_time": 1588702236,
"redis_build_id": "a31260535f820267",
"redis_git_dirty": 0,
"redis_git_sha1": 0,
"redis_mode": "standalone",
"redis_version": "999.999.999",
"rejected_connections": 0,
"repl_backlog_active": 1,
"repl_backlog_first_byte_offset": 118707937,
"repl_backlog_histlen": 123481,
"repl_backlog_size": 1048576,
"role": "master",
"rss_overhead_bytes": -3051520,
"rss_overhead_ratio": 1.0,
"run_id": "8d252f66c3ef89bd60a060cf8dc5cfe3d511c5e4",
"second_repl_offset": 118830003,
"slave_expires_tracked_keys": 0,
"sync_full": 0,
"sync_partial_err": 0,
"sync_partial_ok": 0,
"tcp_port": 6379,
"total_commands_processed": 885,
"total_connections_received": 10,
"total_net_input_bytes": 802709255,
"total_net_output_bytes": 31754,
"total_system_memory": 135029538816,
"total_system_memory_human": "125.76G",
"uptime_in_days": 53,
"uptime_in_seconds": 4631778,
"used_cpu_sys": 4.668282,
"used_cpu_sys_children": 0.002191,
"used_cpu_user": 4.21088,
"used_cpu_user_children": 0.0,
"used_memory": 931908760,
"used_memory_dataset": 910774306,
"used_memory_dataset_perc": "97.82%",
"used_memory_human": "888.74M",
"used_memory_lua": 37888,
"used_memory_lua_human": "37.00K",
"used_memory_overhead": 21134454,
"used_memory_peak": 932015216,
"used_memory_peak_human": "888.84M",
"used_memory_peak_perc": "99.99%",
"used_memory_rss": 944201728,
"used_memory_rss_human": "900.46M",
"used_memory_scripts": 0,
"used_memory_scripts_human": "0B",
"used_memory_startup": 791264
}
'''
import traceback
REDIS_IMP_ERR = None
try:
from redis import StrictRedis
HAS_REDIS_PACKAGE = True
except ImportError:
REDIS_IMP_ERR = traceback.format_exc()
HAS_REDIS_PACKAGE = False
from ansible.module_utils.basic import AnsibleModule, missing_required_lib
from ansible.module_utils._text import to_native
def redis_client(**client_params):
return StrictRedis(**client_params)
# Module execution.
def main():
module = AnsibleModule(
argument_spec=dict(
login_host=dict(type='str', default='localhost'),
login_port=dict(type='int', default=6379),
login_password=dict(type='str', no_log=True),
),
supports_check_mode=True,
)
if not HAS_REDIS_PACKAGE:
module.fail_json(msg=missing_required_lib('redis'), exception=REDIS_IMP_ERR)
login_host = module.params['login_host']
login_port = module.params['login_port']
login_password = module.params['login_password']
# Connect and check
client = redis_client(host=login_host, port=login_port, password=login_password)
try:
client.ping()
except Exception as e:
module.fail_json(msg="unable to connect to database: %s" % to_native(e), exception=traceback.format_exc())
info = client.info()
module.exit_json(changed=False, info=info)
if __name__ == '__main__':
main()