add bundle:redis, add redis support to pretalx

bundles/redis/files/redis.conf

@@ -0,0 +1,50 @@
+activerehashing yes
+aof-load-truncated yes
+aof-rewrite-incremental-fsync yes
+appendfilename "appendonly.aof"
+appendfsync everysec
+appendonly ${node.metadata.get('redis', {}).get('appendonly', "no")}
+auto-aof-rewrite-min-size 64mb
+auto-aof-rewrite-percentage 100
+bind ${node.metadata.get('redis', {}).get('bind', "127.0.0.1")}
+client-output-buffer-limit normal 0 0 0
+client-output-buffer-limit pubsub 32mb 8mb 60
+client-output-buffer-limit slave 256mb 64mb 60
+daemonize yes
+databases 16
+dbfilename dump.rdb
+dir /var/lib/redis
+hash-max-ziplist-entries 512
+hash-max-ziplist-value 64
+hll-sparse-max-bytes 3000
+hz 10
+latency-monitor-threshold 0
+list-max-ziplist-entries 512
+list-max-ziplist-value 64
+logfile /var/log/redis/redis-server.log
+loglevel notice
+lua-time-limit 5000
+no-appendfsync-on-rewrite no
+notify-keyspace-events ""
+pidfile /var/run/redis/redis-server.pid
+port 6379
+rdbchecksum yes
+rdbcompression yes
+repl-disable-tcp-nodelay no
+repl-diskless-sync no
+repl-diskless-sync-delay 5
+save 300 10
+save 60 10000
+save 900 1
+set-max-intset-entries 512
+slave-priority 100
+slave-read-only yes
+slave-serve-stale-data yes
+slowlog-log-slower-than 10000
+slowlog-max-len 128
+stop-writes-on-bgsave-error yes
+tcp-backlog 511
+tcp-keepalive 0
+timeout 0
+zset-max-ziplist-entries 128
+zset-max-ziplist-value 64