Ubuntu-Redis-Stack-Server-Image-and-Containers

Redis Stack Servers with Auto Failover

Create Image and Deploy Containers for Redis Stack Servers (1 Primary and 2 Replicas) with Auto Failover for an IOT Application.

Architectural Diagram

1) Build Image:

 * Build
 sudo docker build --no-cache -t iot/ubuntu-22.04-redis-stack-server-6.2.6-v7:latest .

2) Deploy Containers with Docker Compose:

 * Deploy containers 
 set PWD=%cd% && sudo docker compose -f docker-compose-redis.yml --project-directory $PWD --project-name "iot-app" up -d
 
 * stop and remove containers with related network
 set PWD=%cd% && sudo docker compose -f docker-compose-redis.yml --project-directory $PWD --project-name "iot-app" down
 
 * stop services
 set PWD=%cd% && sudo docker compose -f docker-compose-redis.yml --project-directory $PWD --project-name "iot-app" stop
 
 * start services
 set PWD=%cd% && sudo docker compose -f docker-compose-redis.yml --project-directory $PWD --project-name "iot-app" start
 
 * logs: view output from containers
 set PWD=%cd% && sudo docker compose -f docker-compose-redis.yml --project-directory $PWD --project-name "iot-app" logs 

3) Check Logs From Inside the Host - First Check After Deployment:

 * Redis Nodes
 sudo docker exec -it redis-node1 /bin/bash -c "sudo tail -n 600  /var/log/redis.log"
 sudo docker exec -it redis-node2 /bin/bash -c "sudo tail -n 600  /var/log/redis.log"
 sudo docker exec -it redis-node3 /bin/bash -c "sudo tail -n 600  /var/log/redis.log"
 
 * Sentinel Nodes   
 sudo docker exec -it sentinel-node1 /bin/bash -c "sudo tail -n 600  /var/log/redis/redis-sentinel.log"
 sudo docker exec -it sentinel-node2 /bin/bash -c "sudo tail -n 600  /var/log/redis/redis-sentinel.log"
 sudo docker exec -it sentinel-node3 /bin/bash -c "sudo tail -n 600  /var/log/redis/redis-sentinel.log"

4) Interact with Containers/Connect to Containers:

 * Redis Nodes
 sudo docker exec -it redis-node1 /bin/bash
 sudo docker exec -it redis-node2 /bin/bash
 sudo docker exec -it redis-node3 /bin/bash
 
 * Sentinel Nodes   
 sudo docker exec -it sentinel-node1 /bin/bash
 sudo docker exec -it sentinel-node2 /bin/bash
 sudo docker exec -it sentinel-node3 /bin/bash

5) Connect to Redis and Sentinel Servers Inside the Containers:

 * Redis Nodes
 redis-cli --raw -h localhost -p 6379 --tls --cert /etc/ssl/certs/server.crt --key /etc/ssl/certs/server.key --cacert /etc/ssl/certs/root.crt -a 

 * Sentinel Nodes   
 redis-cli --raw -h localhost -p 26379 --tls --cert /etc/ssl/certs/server.crt --key /etc/ssl/certs/server.key --cacert /etc/ssl/certs/root.crt -a 

6) Check Configuration Information: Run Directly with Bash

 * Redis Nodes
 sudo docker exec -it redis-node1 /bin/bash -c "sudo redis-cli --raw -h localhost -p 6379 --tls --cert /etc/ssl/certs/server.crt --key /etc/ssl/certs/server.key --cacert /etc/ssl/certs/root.crt -a password INFO"
 sudo docker exec -it redis-node2 /bin/bash -c "sudo redis-cli --raw -h localhost -p 6379 --tls --cert /etc/ssl/certs/server.crt --key /etc/ssl/certs/server.key --cacert /etc/ssl/certs/root.crt -a password INFO"
 sudo docker exec -it redis-node3 /bin/bash -c "sudo redis-cli --raw -h localhost -p 6379 --tls --cert /etc/ssl/certs/server.crt --key /etc/ssl/certs/server.key --cacert /etc/ssl/certs/root.crt -a password INFO"

 
 * Sentinel Nodes   
 sudo docker exec -it sentinel-node1 /bin/bash -c "sudo redis-cli --raw -h localhost -p 26379 --tls --cert /etc/ssl/certs/server.crt --key /etc/ssl/certs/server.key --cacert /etc/ssl/certs/root.crt -a password INFO"
 sudo docker exec -it sentinel-node2 /bin/bash -c "sudo redis-cli --raw -h localhost -p 26379 --tls --cert /etc/ssl/certs/server.crt --key /etc/ssl/certs/server.key --cacert /etc/ssl/certs/root.crt -a password INFO"
 sudo docker exec -it sentinel-node3 /bin/bash -c "sudo redis-cli --raw -h localhost -p 26379 --tls --cert /etc/ssl/certs/server.crt --key /etc/ssl/certs/server.key --cacert /etc/ssl/certs/root.crt -a password INFO"

License

Copyright © 2023. MongoExpUser

Licensed under the MIT license.