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my Redis container is defined as a standard image in my docker_compose.yml

redis:  
  image: redis
  ports:
    - "6379"

I guess it's using standard settings like binding to Redis at localhost. I need to bind it to 0.0.0.0, is there any way to add a local redis.conf file to change the binding and let docker-compose to use it?

thanks for any trick...

very important for anyone reading this, your custom redis.conf file needs to bind 0.0.0.0 -::1 else it wont work no matter which answer you follow below, i tried all of them before writing this – PirateApp May 16, 2022 at 6:06

Alternatively, create a new image based on the redis image with your conf file copied in. Full instructions are at: https://registry.hub.docker.com/_/redis/

However, the redis image does bind to 0.0.0.0 by default. To access it from the host, you need to use the port that Docker has mapped to the host for you which you find by using docker ps or the docker port command, you can then access it at localhost:32678 where 32678 is the mapped port. Alternatively, you can specify a specific port to map to in the docker-compose.yml.

As you seem to be new to Docker, this might all make a bit more sense if you start by using raw Docker commands rather than starting with Compose.

thanks a lot ... I've been thru Docker aw commands before... I'm now learning Compose ... I'll try both suggestions ... – user762579 May 30, 2015 at 22:30 I tried to follow your recommendation. But Redis does not read my config file, and seems to just load its own default conf; for instance, I have required a password inside the conf file, but when the instance runs, there is no password requirement. – Kousha Sep 4, 2015 at 18:19 I did: stackoverflow.com/questions/32404425/… I'd really appreciate if you could help me out – Kousha Sep 4, 2015 at 18:27 It's worth noting that you will still see the warning in the console that you are using the default config file in this case. This threw me, and I spent some time before realising I was actually using my custom config file. – smur89 Dec 19, 2016 at 13:25 @Kousha - See Marcola's answer. You need to set the command as well, or it will fail to load /usr/local/etc/redis/redis.conf on startup. – Stevey Sep 24, 2020 at 1:11

Old question, but if someone still want to do that, it is possible with volumes and command:

command: redis-server /usr/local/etc/redis/redis.conf
volumes:
 - ./redis/redis.conf:/usr/local/etc/redis/redis.conf
                Would this work if the container was on another host? volumes mounts directories on_the_host, right?
– Andreas Wederbrand
                Sep 8, 2016 at 10:41
                Worth noting that redis configuration only allows connections from 127.0.0.1 by default, so if you want to connect from the host for testing purposes, then you need to tweak the options.
– user2964500
                May 6, 2017 at 7:06
                Specify an absolute path mapping in Volumes is safer, like this: volumes:  - ${PWD}/redis/redis.conf:/usr/local/etc/redis/redis.conf
– Jinsong Li
                Nov 8, 2017 at 16:01

Unfortunately with Docker, things become a little tricky when it comes to Redis configuration file, and the answer voted as best (im sure from people that did'nt actually tested it) it DOESNT work.

But what DOES WORK, fast, and without husles is this:

 command: redis-server --bind redis-container-name --requirepass some-long-password --maxmemory 256mb --maxmemory-policy allkeys-lru --appendonly yes

You can pass all the variable options you want in the command section of the yaml docker file, by adding "--" in the front of it, followed by the variable value.

Never forget to set a password, and if possible close the port 6379.

Τhank me later.

PS: If you noticed at the command, i didnt use the typical 127.0.0.1, but instead the redis container name. This is done for the reason that docker assigns ip addresses internally via it's embedded dns server. In other words this bind address becomes dynamic, hence adding an extra layer of security.

If your redis container is called "redis" and you execute the command docker inspect -f '{{range .NetworkSettings.Networks}}{{.IPAddress}}{{end}}' redis (for verifying the running container's internal ip address), as far as docker is concerned, the command give in docker file, will be translated internally to something like: redis-server --bind 172.19.0.5 --requirepass some-long-password --maxmemory 256mb --maxmemory-policy allkeys-lru --appendonly yes

This is the correct answer. I messed around with various configurations for the better half of a day and in the end, passing the options in the cmd is the only method that reliably and consistently works and does not require a ton of extra configurations. Only thing is I'll opt to thank you now as opposed to later :-D Thanks! – struensee May 26, 2020 at 21:49 Using requirepass some-long-password in production is a big security issue. ps will list your password and redis-cli will even have a warning that the password is exposed "Warning: Using a password with '-a' or '-u' option on the command line interface may not be safe.". Always use redis.conf in production. – Christos Lytras Jun 29, 2021 at 9:04 image: redis:alpine command: redis-server --include /usr/local/etc/redis/redis.conf volumes: - ./redis/redis.conf:/usr/local/etc/redis/redis.conf

That way, you include the .conf file by docker-compose.yml file and don't need a custom image.

while using it in my project I noticed that I had to also configure the bind key to the container name I was using, as : bind cache or bind [your-container-name] – bessa3301 Aug 4, 2022 at 14:31
  • mount your config /usr/local/etc/redis/redis.conf
  • add command to execute redis-server with your config
  •   redis:
        image: redis:7.0.4-alpine
        restart: unless-stopped
        volumes:
          - ./redis.conf:/usr/local/etc/redis/redis.conf
        command: redis-server /usr/local/etc/redis/redis.conf
        ########################################
        # or using command if mount not work
        ########################################
        command: >
          redis-server --bind 127.0.0.1
          --appendonly no
          --save ""
          --protected-mode yes
    

    It is an old question but I have a solution that seems elegant and I don't have to execute commands every time ;).

    1 Create your dockerfile like this

    #/bin/redis/Dockerfile
    FROM redis
    CMD ["redis-server", "--include /usr/local/etc/redis/redis.conf"]
    

    What we are doing is telling the server to include that file in the Redis configuration. The settings you type there will override the default Redis have.

    2 Create your docker-compose

    redisall:
          build:
            context: ./bin/redis
          container_name: 'redisAll'
          restart: unless-stopped
          ports:
            - "6379:6379"
          volumes:
            - ./config/redis:/usr/local/etc/redis
    

    3 Create your configuration file it has to be called the same as Dockerfile

    //config/redis/redis.conf
    requirepass some-long-password
    appendonly yes
    ################################## NETWORK #####################################
    # By default, if no "bind" configuration directive is specified, Redis listens
    # for connections from all the network interfaces available on the server.
    # It is possible to listen to just one or multiple selected interfaces using
    # the "bind" configuration directive, followed by one or more IP addresses.
    # Examples:
    # bind 192.168.1.100 10.0.0.1
    # bind 127.0.0.1 ::1
    # ~~~ WARNING ~~~ If the computer running Redis is directly exposed to the
    # internet, binding to all the interfaces is dangerous and will expose the
    # instance to everybody on the internet. So by default we uncomment the
    # following bind directive, that will force Redis to listen only into
    # the IPv4 loopback interface address (this means Redis will be able to
    # accept connections only from clients running into the same computer it
    # is running).
    # IF YOU ARE SURE YOU WANT YOUR INSTANCE TO LISTEN TO ALL THE INTERFACES
    # JUST COMMENT THE FOLLOWING LINE.*
    # ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    bind 127.0.0.1
     // and all configurations that can be specified
     // what you put here overwrites the default settings that have the
     container
    

    I had the same problem when using Redis in docker environment that the Redis could not save data to disk on dump.rdb. The problem was the Redis could not read the configurations redis.conf , I solve it by sending the required configurations with the command in docker compose as below :

    redis19:
       image: redis:5.0
       restart: always
       container_name: redis19
       hostname: redis19
       command: redis-server --requirepass some-secret  --stop-writes-on-bgsave-error no --save 900 1 --save 300 10 --save 60 10000
    volumes:
      - $PWD/redis/redis_data:/data
      - $PWD/redis/redis.conf:/usr/local/etc/redis/redis.conf
      - /etc/localtime:/etc/localtime:ro
    

    and it works fine.

    I think it will be helpful i am sharing working code in my local

    redis:
        container_name: redis
        hostname: redis
        image: redis
        command: >
          --include /usr/local/etc/redis/redis.conf
        volumes:
          - ./redis/redis.conf:/usr/local/etc/redis/redis.conf
        ports:
          - "6379:6379"
            

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