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[Intro Music]

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Alright, as usually I hope that

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you solved this challenge yourself,

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and you were able to create two

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containers redis and redis-commander

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in separate custom bridge

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network called 'redis'; and you were

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able to connect from redis-commander

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to redis using graphical user

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interface. Now, let me do that

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together with you. And first of

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all, let me go to VS Code. and let

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me create here a new folder inside

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of the containers folder, and that

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folder name will be 'redis', like so.

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And here inside let me create a new

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file commands.txt, similarly

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as we did for previous cases, when

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we have launched multiple

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containers in the same network. And

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here first command will be

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CREATE NEW CUSTOM NETWORK, 'docker

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network create', and name of the

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network will be 'redis'. Next, LAUNCH

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REDIS CONTAINER, and let me launch

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it in this custom 'redis' network,

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and I'll give it a custom name

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'redis', 'docker run \',

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'--name redis'. Next comes

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network, '--network

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redis'. Also, let me run this

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container in background, and the

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image name will be 'redis'. And

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that's probably all what I need for

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'redis' container. But if I will

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require something else, I'll edit

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later. Great. Let's next

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launch redis-commander,

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LAUNCH REDIS-COMMANDER CONTAINER, and

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I'll launch it using same command

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'docker run \'. Let's give it

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name, '--name redis-

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commander', like this. Next comes

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network, we will create this

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container in the same redis

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network, '--network redis \',

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I'll also run this container in

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background. And here will be the

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name of the image. Let me go to

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Google Chrome and click on this

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image, 'rediscommander\

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redis-commander',

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let me copy this name from here, and

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paste here, like so. Also, let

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me scroll down here, and somewhere

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in those settings, you may find

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default port, it is 8081. But of

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course, if you need you are able to

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adjust this port number. Let me go

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back to VS Code, and here let me

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add the port mapping, '-p',

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and external port I'll use same as

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internal; 8081, and internal

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will be 8081, like this. But

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now let me quickly tell you a few

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words about redis-commander.

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Actually it is available as you see

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here as Docker Image, but it is also

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available as NPM package for Node.js,

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because actually redis-

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commander is written in Node.js,

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and you may read this information

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here, and you are able to install it

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either using npm or use

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container, here it is; and we are

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actually using it as a container.

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Let me scroll down here, and let me

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show you which environment

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variables we should use for this

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container. Here you see a set of

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environment variables, and here a

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set of additional environment

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variables like REDIS_PORT,

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REDIS_HOST; and now let's set

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only single environment variable,

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REDIS_HOST, and as a value, we will

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specify simply 'redis' as the name of

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the redis container. Alright, let

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me copy REDIS_HOST environment

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variable here, and go back to

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configuration of this container,

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and let me add environment variable

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'-e REDIS_HOST=

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redis', like this. And it seems that

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that's all what I will need in

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order to start this container. But

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again, I haven't done it before and

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if I miss something I'll add

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additional configuration parameters

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here later on. For now that's it.

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Let me save this, and let me copy

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first command, 'docker network create

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redis', and go to terminal in order

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to start those containers. All

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right, 'docker network create redis',

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network was created, next let's

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start redis container like this.

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Let me copy this command. Container

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was started. Let's go back to

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redis-commander. Let me copy this

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command, go back to terminal, and

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start redis-commander. Recap

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that we have not yet pulled redis-

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commander image and that's why now

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Docker is pulling it. Alright,

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Pull was completed, and it seems

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that both containers should be now

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up and running. Let me have a look

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at them, 'docker ps', and yes, there

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are two containers up. And now I

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could try access redis-commander

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graphical user interface from a

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local computer using port 8081 in

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web browser. Let me go there, and

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here type localhost:8081, like

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this. And I'm in, and here you

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actually see connection to Redis

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server. Let me make it a bit

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smaller like this, and let's try to

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add new key, click on this

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button, Add New Key', key will be,

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let's say, key2, and the value

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will be, 'Good day', like so. And

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here, let's click OK, Save

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actually, and it seems that new key

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was added. Let me verify that,

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you are able to expand this here,

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and I'll see key2 here on the

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list. Let me click on key2, and

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I'll get its value here. And that

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means that the redis-commander is

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working, and now it communicates

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correctly with Redis server. And

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notice that we have not specified

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any authentication parameters either

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for Redis server or for redis-

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commander; and we have simply looked

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into redis-commander without any

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username and password. But for the

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sake of this challenge that's

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pretty fine, and actually all what

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you need to do in the redis-

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commander container, you need to

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specify an environment variable

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called REDIS_HOST, and in our case,

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it is set to name of 'redis'

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container and recap that because

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those containers are running in a

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separate custom network, this name

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redis will be resolved by Docker

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Host to IP address of redis

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container, this container. That's all

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guys for this challenge. And now

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let me quickly stop those

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containers. I don't need them

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anymore. 'docker stop 47', 'docker

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stop ef', and 'docker container

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prune', Yes. All right. That's all

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guys for this lesson, and I'll see

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you next where we will explore

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another Docker Image. I'll see you

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next. Bye-Bye.

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[no audio]