├── remove_docker_redis_cluster.sh
├── README.md
└── provision_docker_redis_cluster.sh


/remove_docker_redis_cluster.sh:
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1 | #!/bin/bash
2 | sudo docker rm -f redis_0
3 | sudo docker rm -f redis_1
4 | 
5 | sudo docker rm -f sentinel_0
6 | sudo docker rm -f sentinel_1
7 | sudo docker rm -f sentinel_2
8 | 


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/README.md:
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 1 | docker-rediscluster
 2 | ===================
 3 | 
 4 | Sets up a disposable redis cluster for testing sentinel failover.
 5 | 
 6 | Topology
 7 | --------
 8 | 
 9 | redis_0 - master
10 | 
11 | redis_1 - slave of redis_0
12 | 
13 | sentinel_0
14 | 
15 | sentinel_1
16 | 
17 | sentinel_2
18 | 
19 | The sentinels are configured with a "testing" instance with the following properties -
20 | 
21 | ```
22 | down-after-milliseconds 1000
23 | failover-timeout 1000
24 | parallel-syncs 1
25 | ```
26 | 
27 | Set up
28 | ------
29 | 
30 | Install the redis-cli maybe using apt-get install redis-server
31 | 
32 | ```
33 | docker pull redis
34 | docker pull joshula/redis-sentinel
35 | ```
36 | 
37 | Run
38 | ---
39 | 
40 | provision_docker_redis_cluster.sh
41 | 
42 | Remove cluster
43 | --------------
44 | 
45 | remove_docker_redis_cluster.sh
46 | 
47 | Play with it
48 | ------------
49 | 
50 | Attach to a sentinel
51 | 
52 | ```
53 | sudo docker attach sentinel_1
54 | ```
55 | 
56 | Pause/Unpause redis instances
57 | 
58 | ```
59 | sudo docker pause redis_0
60 | sudo docker unpause redis_0
61 | ```
62 | 
63 | 


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/provision_docker_redis_cluster.sh:
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 1 | #!/bin/bash
 2 | 
 3 | DOCKER_IP=$(ifconfig docker0 | grep 'inet addr:' | cut -d: -f2  | awk '{ print $1}')
 4 | 
 5 | echo "DOCKER IP : $DOCKER_IP"
 6 | 
 7 | # create two redis instances
 8 | sudo docker run --name redis_0 -t -d -i redis:2.8 
 9 | sudo docker run --name redis_1 -t -d -i redis:2.8 
10 | 
11 | #get master ip
12 | REDIS_0_IP=$(sudo docker inspect --format '{{ .NetworkSettings.IPAddress }}' redis_0)
13 | REDIS_1_IP=$(sudo docker inspect --format '{{ .NetworkSettings.IPAddress }}' redis_1)
14 | 
15 | echo "REDIS_0_IP : $REDIS_0_IP"
16 | echo "REDIS_1_IP : $REDIS_1_IP"
17 | 
18 | # start up the sentinels
19 | sudo docker run --name sentinel_0 -d -p 26379:26379 joshula/redis-sentinel --sentinel announce-ip $DOCKER_IP --sentinel announce-port 26379
20 | sudo docker run --name sentinel_1 -d -p 26378:26379 joshula/redis-sentinel --sentinel announce-ip $DOCKER_IP --sentinel announce-port 26378
21 | sudo docker run --name sentinel_2 -d -p 26377:26379 joshula/redis-sentinel --sentinel announce-ip $DOCKER_IP --sentinel announce-port 26377
22 | 
23 | #get sentinel ips
24 | SENTINEL_0_IP=$(sudo docker inspect --format '{{ .NetworkSettings.IPAddress }}' sentinel_0)
25 | SENTINEL_1_IP=$(sudo docker inspect --format '{{ .NetworkSettings.IPAddress }}' sentinel_1)
26 | SENTINEL_2_IP=$(sudo docker inspect --format '{{ .NetworkSettings.IPAddress }}' sentinel_2)
27 | 
28 | echo "SENTINEL_0_IP : $SENTINEL_0_IP"
29 | echo "SENTINEL_1_IP : $SENTINEL_1_IP"
30 | echo "SENTINEL_2_IP : $SENTINEL_2_IP"
31 | 
32 | redis-cli -h $REDIS_1_IP -p 6379 slaveof $REDIS_0_IP 6379
33 | 
34 | redis-cli -p 26379 sentinel monitor testing $REDIS_0_IP 6379 2
35 | redis-cli -p 26379 sentinel set testing down-after-milliseconds 1000
36 | redis-cli -p 26379 sentinel set testing failover-timeout 1000
37 | redis-cli -p 26379 sentinel set testing parallel-syncs 1
38 | 
39 | redis-cli -p 26378 sentinel monitor testing $REDIS_0_IP 6379 2
40 | redis-cli -p 26378 sentinel set testing down-after-milliseconds 1000
41 | redis-cli -p 26378 sentinel set testing failover-timeout 1000
42 | redis-cli -p 26378 sentinel set testing parallel-syncs 1
43 | 
44 | redis-cli -p 26377 sentinel monitor testing $REDIS_0_IP 6379 2
45 | redis-cli -p 26377 sentinel set testing down-after-milliseconds 1000
46 | redis-cli -p 26377 sentinel set testing failover-timeout 1000
47 | redis-cli -p 26377 sentinel set testing parallel-syncs 1


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