Redis-Sentinel integration for Flask
Project description
Flask-Redis-Sentinel provides support for connecting to Redis using Sentinel and also supports connecting to Redis without it.
Supports Python 2.7 and 3.3+
Licensed using Apache License 2.0
Installation
Install with pip:
pip install Flask-Redis-Sentinel
Basic usage
from flask_redis_sentinel import SentinelExtension
redis_sentinel = SentinelExtension()
redis_connection = redis_sentinel.default_connection
# Later when you create application
app = Flask(...)
redis_sentinel.init_app(app)
You can configure Redis connection parameters using REDIS_URL Flask configuration variable with redis+sentinel URL scheme:
redis+sentinel://localhost:26379[,otherhost:26379,...]/mymaster/0 redis+sentinel://localhost:26379[,otherhost:26379,...]/mymaster/0?socket_timeout=0.1 redis+sentinel://localhost:26379[,otherhost:26379,...]/mymaster/0?sentinel_socket_timeout=0.1 redis+sentinel://:sentinel-secret-password@localhost:26379[,otherhost:26379,...]/mymaster/0?sentinel_socket_timeout=0.1
The extension also supports URL schemes as supported by redis-py for connecting to an instance directly without Sentinel:
redis://[:password]@localhost:6379/0 rediss://[:password]@localhost:6379/0 unix://[:password]@/path/to/socket.sock?db=0
Flask-And-Redis style config variables are also supported for easier migration, but the extension will log a DeprecationWarning:
REDIS_HOST = 'localhost' REDIS_PORT = 6379 REDIS_DB = 0
In case both REDIS_URL and other variables are present, the URL is used.
Creating multiple connection pools using a single Sentinel cluster
from flask_redis_sentinel import SentinelExtension
redis_sentinel = SentinelExtension()
master1 = redis_sentinel.master_for('service1')
master2 = redis_sentinel.master_for('service2')
slave1 = redis_sentinel.slave_for('service1')
Accessing redis-py’s Sentinel instance
from flask_redis_sentinel import SentinelExtension
from flask import jsonify, Flask
app = Flask('test')
redis_sentinel = SentinelExtension(app=app)
@app.route('/')
def index():
slaves = redis_sentinel.sentinel.discover_slaves('service1')
return jsonify(slaves=slaves)
Change log
v2.0.0
Connections are now thread-local to avoid race conditions after Redis master failover
Removed support for REDIS_{HOST, PORT, DB} config variables
v1.0.0
Moved URL handling code to a separate library, redis_sentinel_url
Backward-incompatible change:
# Old redis+sentinel://host:port/service?slave=true
Should now be written as:
# New redis+sentinel://host:port/service?client_type=slave
v0.2.0
Use config variables other than REDIS_{HOST, PORT, DB} even if REDIS_URL is used
Minor refactoring
v0.1.0
Initial release
Project details
Download files
Download the file for your platform. If you're not sure which to choose, learn more about installing packages.
Source Distribution
Built Distribution
File details
Details for the file Flask-Redis-Sentinel-2.0.1.tar.gz
.
File metadata
- Download URL: Flask-Redis-Sentinel-2.0.1.tar.gz
- Upload date:
- Size: 8.3 kB
- Tags: Source
- Uploaded using Trusted Publishing? No
File hashes
Algorithm | Hash digest | |
---|---|---|
SHA256 | a17ef135f607f1531fd80a283368ef5f11ecf5a4237b48fd192549e8c8998f02 |
|
MD5 | e8ffb50624f727f7720a139c5bfadf9f |
|
BLAKE2b-256 | 7f11ab88b51564ea413c94c5a6b31df6b2f5b074d54c2952496734bf73bb0130 |
File details
Details for the file Flask_Redis_Sentinel-2.0.1-py2.py3-none-any.whl
.
File metadata
- Download URL: Flask_Redis_Sentinel-2.0.1-py2.py3-none-any.whl
- Upload date:
- Size: 6.8 kB
- Tags: Python 2, Python 3
- Uploaded using Trusted Publishing? No
File hashes
Algorithm | Hash digest | |
---|---|---|
SHA256 | 0deb2bef4977144a008bae2457c931ff8b1f3f97dce94c09003ed360e39f89a4 |
|
MD5 | e48ec6fddcdbc9bd0f7a39d3e725d0ee |
|
BLAKE2b-256 | 2a60a19904c7342ac87f0343e6b3476fcaaf62015eb5443e1424d6830359552f |