2023-02-07 12:19:01 +11:00

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# Redis
<a href="https://youtu.be/L3zp347cWNw" title="redis-intro"><img src="https://i.ytimg.com/vi/L3zp347cWNw/hqdefault.jpg" width="20%" alt="redis-intro" /></a>
## Docker
Docker image over [here](https://hub.docker.com/_/redis)
## Running redis
```
docker network create redis
docker run -it --rm --name redis --net redis -p 6379:6379 redis:6.0-alpine
```
## Configuration
Redis configuration documentation [here](https://redis.io/topics/config)
Starting Redis with a custom config
```
cd .\storage\redis\
docker run -it --rm --name redis --net redis -v ${PWD}/config:/etc/redis/ redis:6.0-alpine redis-server /etc/redis/redis.conf
```
## Security
Redis should not be exposed to public.
Always use a strong password in `redis.conf`
```
requirepass SuperSecretSecureStrongPass
```
## Persistence
Redis Persistence Documentation [here](https://redis.io/topics/persistence)
```
docker volume create redis
cd .\storage\redis\
docker run -it --rm --name redis --net redis -v ${PWD}/config:/etc/redis/ -v redis:/data/ redis:6.0-alpine redis-server /etc/redis/redis.conf
```
## Redis client application
An example application that reads a key from Redis, increments it and writes it back to Redis.
```
cd .\storage\redis\applications\client\
# start go dev environment
docker run -it -v ${PWD}:/go/src -w /go/src --net redis -p 80:80 golang:1.14-alpine
go build client.go
# start the app
./client
# build the container
docker build . -t aimvector/redis-client:v1.0.0
```
Run our application
```
cd .\storage\redis\applications\client\
docker build . -t aimvector/redis-client:v1.0.0
docker run -it --net redis `
-e REDIS_HOST=redis `
-e REDIS_PORT=6379 `
-e REDIS_PASSWORD="SuperSecretSecureStrongPass" `
-p 80:80 `
aimvector/redis-client:v1.0.0
```
## Redis Replication and High Availability
Lets move on to the [clustering](./clustering/readme.md) secion.