Add redis as storage backend

cmd/agent.go

@@ -52,8 +52,8 @@ Options:
                                   key/value tag pairs to the given node.
   -keyspace=dkron                 The keyspace to use. A prefix under all data is stored
                                   for this instance.
-  -backend=[etcd|consul|zk]       Backend storage to use, etcd, consul or zookeeper. The default
-                                  is etcd.
+  -backend=[etcd|consul|zk|redis] Backend storage to use, etcd, consul, zk (zookeeper) or redis.
+                                  The default is etcd.
   -backend-machine=127.0.0.1:2379 Backend storage servers addresses to connect to. This flag can be
                                   specified multiple times.
   -encrypt                        Key for encrypting network traffic.

dkron/store.go

@@ -9,7 +9,8 @@ import (
 	"github.com/abronan/valkeyrie"
 	"github.com/abronan/valkeyrie/store"
 	"github.com/abronan/valkeyrie/store/consul"
-	etcd "github.com/abronan/valkeyrie/store/etcd/v2"
+	"github.com/abronan/valkeyrie/store/etcd/v2"
+	"github.com/abronan/valkeyrie/store/redis"
 	"github.com/abronan/valkeyrie/store/zookeeper"
 	"github.com/victorcoder/dkron/cron"
 )
@@ -50,6 +51,7 @@ func init() {
 	etcd.Register()
 	consul.Register()
 	zookeeper.Register()
+	redis.Register()
 }
 
 func NewStore(backend string, machines []string, a *Agent, keyspace string, config *store.Config) *Store {

docker-compose.yml

@@ -24,12 +24,18 @@ services:
       - "2181"
     hostname: node1
 
+  redis:
+    image: redis
+    ports:
+      - "6379"
+
   dkron:
     build: .
     depends_on:
       - consul
       - etcd
       - zk
+      - redis
     ports:
       - "8080"
       - "8946"
@@ -43,3 +49,5 @@ services:
     # command: scripts/entrypoint.sh agent -server -backend=etcd -backend-machine=etcd:2379 -join=dkron:8946 -log-level=debug
     # Uncomment to use zk
     # command: scripts/entrypoint.sh agent -server -backend=zk -backend-machine=zk:2181 -join=dkron:8946 -log-level=debug
+    # Uncomment to use redis
+    # command: scripts/entrypoint.sh agent -server -backend=redis -backend-machine=redis:6379 -join=dkron:8946 -log-level=debug

scripts/test-infra/dd-conf/redis.yaml

@@ -0,0 +1,6 @@
+init_config:
+
+instances:
+   -   host: redis0
+       port: 6379
+       timeout: 3

scripts/test-infra/redis

@@ -0,0 +1,31 @@
+#!/usr/bin/env bash
+
+docker service rm redis0
+
+docker service create \
+--name redis0 \
+--network my-net \
+redis
+
+sleep 10
+
+docker service rm dkron-redis0 dkron-redis
+
+docker service create \
+--name dkron-redis0 \
+--network my-net \
+--publish 8090:8080 \
+--container-label beta="0" \
+dkron/dkron:v0.9.3 \
+agent -server -bind=0.0.0.0:8946 -backend=redis -backend-machine=redis0:6379 -join=dkron-redis0:8946 -dog-statsd-addr=dd-agent:8125 -log-level=debug
+
+sleep 5
+
+docker service create \
+--name dkron-redis \
+--network my-net \
+--replicas 5 \
+--publish 8091:8080 \
+--container-label beta="0" \
+dkron/dkron:v0.9.3 \
+agent -server -bind=0.0.0.0:8946 -backend=redis -backend-machine=redis0:6379 -join=dkron-redis0:8946 -dog-statsd-addr=dd-agent:8125 -log-level=debug

website/content/basics/configuration.md

@@ -18,7 +18,7 @@ Settings for dkron can be specified in three ways: Using a `config/dkron.json` c
 
 * `-http-addr` - The address where the web UI will be binded. By default `:8080`
 
-* `-backend` - Backend storage to use, etcd, consul or zk (zookeeper). The default is etcd.
+* `-backend` - Backend storage to use, etcd, consul, zk (zookeeper) or redis. The default is etcd.
 
 * `-backend-machine` - Backend storage servers addresses to connect to. This flag can be specified multiple times. By default `127.0.0.1:2379`