SRV resolver
Helper to get record from SRV address according to RFC2782.
Features
- support of record weights and priorities
- check service availability at specific port
- random record selector
- cache with ttl support
Install
The package can be installed simply by using pip:
pip install srvresolverExample
from srvresolver.srv_resolver import SRVResolver
# get all records
SRVResolver.resolve('_service._tcp.example.com')
# get one random record with working connection
SRVResolver.resolve_random('_service._tcp.example.com')
# get first available server
SRVResolver.resolve_first('_service._tcp.example.com')Adds
Resolver with DNS cache
This one uses cache implemented in dnspython module.
from srvresolver.srv_resolver_cached import SRVResolverCached
# get all records
SRVResolverCached.resolve('_service._tcp.example.com')
# same but don't do dns request, load from cache if not expired
SRVResolverCached.resolve('_service._tcp.example.com')Postgres SRV record resolver
Extract postgres records from SRV and check whether master or slave. Requires psycopg2
from srvresolver.postgres_resolver import PostgresResolver
# get random working slave record
PostgresResolver.get_slave('_postgresql._tcp.example.com', username, password)
# get random working master record
PostgresResolver.get_master('_postgresql._tcp.example.com', username, password)
