How do I set a password for redis?

[ddzyan]

sudo docker run \
> -p 6379:6379 \
> -v $PWD/data:/data \
> --requirepass "__@picker-redis" \
> --name redis \
> -d redis:3.2 redis-server --appendonly yes
unknown flag: --requirepass
See 'docker run --help'.

[tao12345666333]

You made the wrong position of the parameter.

You should do it, like this:

sudo docker run \
> -p 6379:6379 \
> -v $PWD/data:/data \
> --name redis \
> -d redis:3.2 redis-server --appendonly yes  --requirepass "__@picker-redis" 

[ddzyan]

You made the wrong position of the parameter.

You should do it, like this:

sudo docker run \
> -p 6379:6379 \
> -v $PWD/data:/data \
> --name redis \
> -d redis:3.2 redis-server --appendonly yes  --requirepass "__@picker-redis" 

Thank you, I will try

[brunowego]

Sharing this for other users:

Volume

docker volume create redis-data

Running

docker run -d \
  -h redis \
  -e REDIS_PASSWORD=redis \
  -v redis-data:/data \
  -p 6379:6379 \
  --name redis \
  --restart always \
  redis:5.0.5-alpine3.9 /bin/sh -c 'redis-server --appendonly yes --requirepass ${REDIS_PASSWORD}'

Remove

docker rm -f redis
docker volume rm redis-data

[jrichardsz]

This worked for me

docker run --name redis -d -p 6379:6379 redis redis-server --requirepass "SUPER_SECRET_PASSWORD"

[stevecho-dift]

This worked for me

docker run --name redis -d -p 6379:6379 redis redis-server --requirepass "SUPER_SECRET_PASSWORD"

This worked for me

docker run --name redis -d -p 6379:6379 redis redis-server --requirepass "SUPER_SECRET_PASSWORD"

Thanks mate. It worked for me too!

[CenkCamkiran]

--requirepass

Thanks mate!

[antonioGabrielGomes]

You made the wrong position of the parameter.

You should do it, like this:

sudo docker run \
> -p 6379:6379 \
> -v $PWD/data:/data \
> --name redis \
> -d redis:3.2 redis-server --appendonly yes  --requirepass "__@picker-redis" 

Do you know if is possible update an container redis with this --requirepass ?

[yosifkit]

Do you know if is possible update an container redis with this --requirepass ?

It might be technically possible but I don't know of a container runtime that will restart a container with a new CMD.

With docker run, you need to stop and remove the old container and then start a new one with the new argument. Many tools like kubernetes or compose do this when you apply updated yaml config and then it deploys updated containers (they remove the old containers and replace them with new containers with the updated runtime configuration). Be sure to use a volume (or equivalent) for any important on-disk save state to have the new container able to pick up where the other stopped.

[wget]

For those wanting a syntax à-la Docker Compose v2, here you are:

  nextcloud-prod-redis:
    image: redis:7-alpine
    container_name: nextcloud-prod-redis
    hostname: nextcloud-prod-redis
    environment:
      - REDIS_PASSWORD=<cf. your password manager>
    volumes:
      - "/srv/cloud.example.org/data/redis:/data"
    networks:
      - nextcloud-prod-network
    command: /bin/sh -c 'redis-server --appendonly yes --requirepass $${REDIS_PASSWORD}'
    restart: always

The trick here was to double the $ character in order to avoid Docker Compose from interpreting it.

[hahuaz]

For docker-compose.yml leave the username empty in the Redis URL.

redis:
  image: redis:latest
  container_name: redis
  command: /bin/sh -c "redis-server --requirepass redis"
  ports:
    - 6379:6379
express:
  stdin_open: true
  environment:
    - REDIS_URL=redis://:redis@redis:6379 # {service}://{username}:{password}@{host}:{port}
  build:
    context: .
    dockerfile: Dockerfile
  container_name: express-app
  depends_on:
    - redis
  ports:
    - "3000:3000"
  volumes:
    - ./:/app # enable reloading

[steelbrain]

There's a downside to doing it this way. Anyone doing a docker ps can see the password

[jrichardsz]

There's a downside to doing it this way. Anyone doing a docker ps can see the password

Anyone with access to the docker container will be able to see any secret no matter if it is encrypted with a DarkHold algorithm.