Hyperledger Foundation Fabric, 26 Jun 2020

Previous Meeting Next Meeting

⏯

youtube image

►

From YouTube: Hyperledger Fabric (HLF) - First Installation: Hyperledger Sweden Study Circle - 26th June 2020

Description

This video features a presentation from Roland Bole that gives an overview of the first chapter of the Hyperledger Fabric (HLF) Developer Learning Path and show a step-by-step installation of the HLF network.

Download Slides: https://samlinux.at/blog/fabric-01/

----
Hyperledger – Open Source Blockchain Technologies

Hyperledger is an open source community focused on developing a suite of stable frameworks, tools and libraries for enterprise-grade blockchain deployments.
It serves as a neutral home for various distributed ledger frameworks including Hyperledger Besu, Fabric, Sawtooth, Indy, as well as tools like Hyperledger Avalon, Cactus and libraries like Hyperledger Aries, Ursa. Learn more about Hyperledger projects: https://www.hyperledger.org/use

Case Studies: https://www.hyperledger.org/learn/case-studies
Training & Certification: https://www.hyperledger.org/learn/training
Tutorials: https://www.hyperledger.org/use/tutorials
Webinars: https://www.hyperledger.org/learn/webinars
Events: https://www.hyperledger.org/events
Vendor Directory: https://www.hyperledger.org/use/vendor-directory

Subscribe to the Hyperledger Newsletter: https://www.hyperledger.org/newsletter

Follow-us on Twitter @Hyperledger

Learn about Hyperledger Membership: https://www.hyperledger.org/about/join

#Hyperledger #HyperledgerMeetups #Blockchain

A

Over the last weeks, we have learned a lot of different I will happily turbo jets and and other blockchain.

B

Related topics, and now we have reached finally.

C

The last chapter.

A

Of this hyper lecture study circle.

D

The fabric part and.

B

We have divided this part into two sections, so the first section we should be should be focus on the developer side and the second part will be focus on the so for this now we start with the developer part, and since this is the last, the first section about fabric in this series, I will show you.

C

To do it today live session, how to install.

B

Fabric and if you have time enough I can give you a short overview about fabric samples and how you can start the very first Network example and what you can do with this. And how is this example organized and so yeah. And with this in mind, we.

C

Should have a solid foundation.

B

For further examples, and anybody should have a when they run in fabric network, to the study and to learn and that's the reason why I will.

E

First, show you, the installation.

A

B

My exam, so can you see my slides and my here yeah.

F

A

B

We start as a lot of like things that I use to.

A

B

Do so we need some preparation and we have nine steps to go so. The first three steps is.

D

E

Because this is when we use public public.

C

Infrastructure as a service provider like digitalocean, you have to do a little.

B

Bit on security and yeah I will I will go in.

C

This, and also when you use code TP as a state database in this environment, you.

B

Have to take care about your security, because the default installation comes with no country database at me and password, and that would lead to the fact that everybody can access your code.

G

Should be databases.

E

And being a big thing,.

A

I think so, and so we have to do a little bit.

B

Preparation then we have to do the.

G

Installation for hype.

A

Electrophilic so.

B

It's because it's a lot is based on doctrine, so we have to install docker. We have to install compose and for chain code development we can install golang and for the chinese development side we can install no chairs to get.

H

Access to the ledger and.

B

With this, if this is ready, we can install the fabric panels and all docker images which.

A

We and then we can.

B

A

Build your first Network.

B

Script to show if it's running and then I will show you what you can do with this I give you a short.

E

Overview about the example so.

B

The first step, what.

A

I'm going to do so, I use a digital ocean droplet for.

B

This example, so that's only my.

C

Choice, you can do it also in battery box or you can take in other.

E

Infrastructure as a service provider of your choice and.

B

The first thing I appear: they I have this problem and the first thing what we have to do is we have to update our system so, and this is a completely fresh machine so and the reason why I use also digital ocean for this example is because this digital ocean has a good internet connection. So you see this is very fast and I think we need in total, maybe 20 minutes to install all things and.

E

To get started with the example step so I think that's pretty.

B

Fast and so it's also very cool to play a little bit with.

E

This infrastructures and to see how this work and what you can, what you have to do to be secure and so ok.

D

So it takes one minute, I think so.

A

And then I installed some you.

B

F

B

Program so for a moment, I think the only the only important program.

D

Is a tree so that's useful because we.

B

Can inspect for with us.

A

For the structures and.

B

Looking into some folders and see what.

F

Median mother and.

G

We should also set our time zone because I'm from from Europe from Austria, so we set our time zone and we can track. We find so there's a very less to do.

B

G

Think you one minute my installation should be ready.

F

F

F

So we keep here, there's a phone settings.

F

D

Ain't it and that's the next step. We install the trim package and.

E

E

Set up the timezone and you see the time in.

D

My case is called so. The first step is.

E

It's done and we have a very system.

H

Because this is a public infrastructure as.

A

A service table so at this moment I have a public.

H

B

This public ID can be accessed from any and to do a basic security stuff. We can use tool which.

D

Is pre-installed which comes clean start in the Ubuntu.

C

18 installation, it's a.

B

Tool called uncomplicated firewall and we.

E

Can set some basic settings, we deny our incoming requests and we set the rule also to allow.

A

Upcoming settings I think that's basically also a default value and the only thing but.

C

I need is, we allow SSH to communicate with this.

E

Server and then we look what we have added and.

E

F

As I said, each.

E

Part and then with this we can enable defile, so.

F

E

Status, we can check okay, fire was active and only part 22 should be available from the outside.

A

So these are the basics, basic steps which you should do when.

E

You're back on a public.

A

Server so with this we have done.

H

All our preparation and because and then we can install the fabric related part, so fabric is.

A

Built on docker and this.

G

Because of this, we have to install.

C

First, doctor, environment, the docker environment and all these commands here are from the official documentation and we.

D

Can copy this command and install.

G

In these requirements.

D

So we add the official tree be cheeky and we.

E

Add something to our repository to the at repository and with.

D

This jacket, everything is right and then.

E

We can, we can use the.

H

Command up get installed and we also installed three packages. The.

C

Docker Community Edition, the docker Community Edition CLI, and this.

D

Container I will record.

D

D

D

Okay, so and then we can check the local version.

C

And you see doc, aberration 19 is installed on this machine.

D

If you want, you can.

E

Run the classic hello world example of toca. What to see if doctor is really working.

E

And you'll see it works so hello from da card and you.

D

Can see also the.

C

Image, you call dr. images, you see all installed images.

E

On your machine- and you see the doctor, one command.

C

E

Was looking for this for this image and because.

B

C

The image the machine is new and the image wasn't installed. It's pretty image from the docker.

E

Repository and one and then you see this again.

A

So, okay, that's all about the.

C

Installation of dakka dakka should be fine and running the next important part.

D

Is docker compose and.

A

G

Also very easy to install.

C

The documentation, the official documentation, is also here on the dock home page.

B

You can use you have to use the curl command for this, and the curl command is the.

D

Default installed on this Punto 18, so we.

F

See this and we have to set the proper.

E

Write for the docker composer, that's it and then we can check again.

D

Docker compose version and we see doctor.

E

Compost, compost version 125.

D

C

So that's not the newest version. I think version is.

G

126, but in my tests, I tested these installations with this version and it's the reason why I chose 25 so.

H

Docker compose should also installed.

A

And the next step is that docker.

B

And fabric is built in go and then we are going to use going.

A

H

Train code- and we can do it in go, but we can do it also in.

A

Other languages, so in nutrients or Java, but I, think the fabric has.

H

A primary language for every part and I think.

A

For the chain code, development, its go.

G

But that's only my interpretation.

C

I'm not sure if this is right or not, and on the other side we have for the client.

A

User is the defending.

F

C

Thank you, and always for the client side. When we talking about the client.

A

Then we trying to access the letter with no Trias and I think node.js is also the default client for access.

E

The lettre applications and.

D

It's the reason why we try this install to install this here. Ok,.

B

So to install go on this machine.

G

E

G

The same steps, so we have to adopt the EPS repository and then we can install goal and one cried so.

C

And that's important according to the documentation, so the official documentation for.

G

C

Yeah go version. One point: twelve is.

D

Required for this.

G

So, as you can see, it's very simple to follow these instructions and- and there is no problem, I think so it's very easy to install the steps and.

F

It should also be very fast to do this.

B

G

Important part when we install go so we have to set the go path here and for this we can.

D

Put this to our profile file.

G

E

To load this profile new and then we can, and you see we have installed go version so.

G

Yeah, it's for the go installation and the second part is there. Our next part is the nutrients part. So no.

A

Chess is supported with two versions: I think.

G

The one version is ten.

G

And now we install.

D

Nutrients, ten to current release of ten, so you can also use this.

C

Declared command and we display command load file down the notes.

E

Was set up and we can give this file access rights, then we can install.

E

You can execute this fight and- and you see the absolute positive we will update it, and now we can.

E

D

Good note, Ria's and.

E

You see, we will use 10 21 and we know Russian. We see no 21 invincible.

A

So all these steps from the official documentation.

D

From the side and yeah.

A

So the next part with this we should have installed all their preparation.

G

Which we need to install finally, the free week.

D

Images and for.

A

D

A new directory and call it fabric and switch into this directory, and then we can use the curl command to install.

H

To load all the.

A

Docker images- and this is one point.

G

C

Have to use when we are going to use one for six version so.

G

And for this we have to because they are the.

H

2.0 version and.

C

When you use the command without the, it is the last.

G

Parameters here.

H

Then you will install the the current version. The 2.0 version. 2.1 version depends on on that.

A

What is really the the last last version, which is published so and.

C

To get a specific version, we.

H

G

Set these three parameters here and the parameters stands for for.

H

Specific position and the first the first part here is the ferry question. So when we want fabric 1 4 6, then it must be the first part here. The second part is for the fabric certified Authority and the third.

C

Part here is for third-party docker images, and third-party docker images is something like health, Kazuki, / culture.

D

So we have to do this.

A

And in this step also, the fabric samples will be cloned from the official paper and.

D

So that could take it's now. Some minutes.

E

Until all docker images are.

D

E

You can see it's really fast and that's the reason why I use in public infrastructure provider, because of their really good internet connections.

C

E

If I will do it at home, then.

H

And the current release now is.

G

1 4 7 so, but for today I have seen that there's a new version. It's not the six one. Four six! It's.

D

One four: seven mystic current version.

F

F

C

All images are downloaded, we can check it and we.

H

Can we should put also the path to the, for example, spin directory.

G

To our profile that we can.

E

That we don't have problems with with.

A

The path and after.

C

This till is I think the last step. Yes.

G

The last step is to install the fabric, see a pie noise and with.

A

This pie, Mary's, we are able to, in the administrative part for.

H

Example, we can access the favorite CH server and we can interact.

D

57 so I think we can also install this and then but.

A

It's a work for later. We.

E

Will not use it today.

H

D

Have everything in storage? Now it's very icy, so we can use then being called docker images and you can see all.

E

Images are downloaded, so we can see coach DP, we can see Kafka's who keep tears, orders and so on. So.

F

Yeah and now with this.

F

D

Yeah, as you can see, I use BIM the.

C

I-44 this, but you can also use nano if.

A

D

It's something of your choice, but.

E

I think we is a little bit easier to use for me. So that's the reason why I use VI to edit some good but.

A

From what development I use, maybe.

C

I show this a little bit later or next. Saturday I use Visual Studio code with developer remote extension and with.

H

This I can connect to the fabric 22 the server and.

C

Then I can work in research to decode and I. Can edit.

G

All the files- and it's a little bit easier to do this but I know for the exam you have to be used with.

E

The VI 1 mono and yeah.

F

D

It's ok so and now we are going to.

E

Install it do the last part, the three weeks er see.

G

C

Oil, these oils, these steps are also from the official documentation and.

F

E

These are some requirements, dependencies for Ubuntu and.

A

G

Misters command go, get, we will install, the binary is for ferric, CN server and ferric see see a client.

A

E

G

Takes I think you can set in the web.

C

Also parameter, then, you will see here the output.

E

Takes a one or two minutes to download these, these files and.

D

When it's done, we can track if.

F

G

If the fabric panels are installed so the.

A

The default installation path.

H

Is in your home directory and in the go fat in the goal directory.

G

And the goals get github.com, this will really default directory where all these packages will be installed.

D

And if the tree command, we can inspect this.

G

As you can see here, the D parameter is only for the rectory, so all files are left and the L is also useful, with the element that you can.

C

E

The level D deep of the wake receive operation when you look into inspect some.

F

E

Now we should have to dig Oh.

H

Base directory and.

D

When we try this trick command now- and you see this workshop so and that's.

C

The reason why I have installed around the first step, the three.

E

Program because.

C

Of this, it's very useful to see the folder structures here and.

H

A

Also useful, when it comes to the crypto material, when we.

E

Look which code to material is available for peers or orders and so on, and so you will have a good overview of things so.

D

Then we have this also to the path.

D

And then when then, we can check for the client.

C

D

E

Auto-Completion.

C

E

Working so the path must be set correctly and when.

D

We can check, we can see one four, six and I.

D

Think we are ready so.

H

I think these are the steps to install fabric installation so from scratch. So when.

G

We look back so they are and you see these are the steps so beyond. We have.

H

Some basic operations to secure.

A

Our droplet and you update the operating system. Then.

G

We have some steps for the favor culated Park, but and now we are ready to use fabric.

A

As a blockchain, and for this.

E

There is in the ferric directory.

D

A

Installed the fabric samples, this step is done during.

E

The installation of the.

F

C

In during the installation of the docker images and in.

A

This in disturb also the favored examples are installed and when we.

D

Put into this, and we can see.

E

The folder structure, which we know yeah.

F

A

C

Everything is installed and now we can try if.

D

A

Fabric is working and for this I will use the pinatas Network script so.

H

That stood comes with.

C

The basic installation and you can find a lot of documentation about this script and.

H

How this is working and, of course, you can learn.

C

A lot from this script and the combination and what you can.

A

Do with this, but.

H

When you install this the first time, there is a kind of.

C

Organization and Betty Ford there will be a organization which have one line in this organization and.

H

To organ to another organizations, and what one can walk to and every organization will have two tiers yeah here: 0 and P R 1, and also in the arc 2, we will have p 0 and P 1, and the default chain code, which is installed by this example, is the example under line 0 to chain code. This is a simple chain code where we can switch two values between the characters: a and P and.

G

The endorsement policy is set.

H

That said in this way, so because it's important when you try to test.

B

It and then you try to tear.

A

Down one organization, for example, and.

H

Then, when you try to invoke a chain a transaction, then it will not work because of this endorsement policy so to to understand what happened in this example.

A

It's useful when you.

H

Do when you create an overview of this and that's what.

D

Is here so, but we can, with the.

H

Script, we can.

B

H

Certified Authority for the organization 1 and also for the organization, and we can also start select couch DBS as a state as a state database.

C

A

Database and we will also have a la CLI container with.

H

And with this container, we can interact with this.

A

Blockchain Center, so this is this is the big picture and when we first try this example so.

A

We can I will do it with the Snooks camera multiplexer, so this should be also installed by default.

A

H

This command this looks new and the parameter s.

B

H

Can create a new session and this session is called fair work and with this command the session is created. We.

D

Have also attached this session- and we see here this green field.

A

G

When we in this smooth.

D

Session we can use multiple.

H

Panels and just to create new panels, we can split the existing panel and to do to do this, we have to set different commands so in all commands.

C

Start start with control with.

D

The control key and B and then you.

H

Have another key so to split the current panel in two panels, then we have to use the quote.

D

And we can do this control V and fold, and you see now we have two.

H

Panels in one session so but you as you can see, I have only one terminal session, so I don't have.

A

I turn on Mac or something like this. That's only one one session.

D

H

Can split this in.

C

How its on time and how it sent away and also Nevada, currently and.

A

H

Jump between what to switch between these two panels, you can use another command, so also the you can. You have to use also control and P and crew.

D

So and you see 0 0 1 and this is 0 1 and then you are here. We call this one to demonstrators.

F

D

F

G

And when we want to leave this yeah, we.

D

Can make this command control, P, D, Phi, D, Tech, PD,.

G

And now we are outside from this session.

D

And we've smokes LS, you can see there's one session.

H

You can have night with sessions here and we have. This is our session and the favorite session and.

A

With this, with this system, you.

B

Can have different screens so and.

G

You can organize it for your personal need.

H

And you can switch from one.

G

Section to another section and.

H

G

When we are going to attach.

D

This this session, we can use the command.

C

T marks and then short a version of the word attached and.

D

The parameter T and the name of the session, and now we are in this session and as.

C

You can see we have indeed the H top screen.

G

And here the normal screen.

H

So so that's how you can create with marks.

G

A new session now you can split it and how you.

D

Can leave it and how you can we attach a to this session.

E

F

A

The first Network example so for this we switch into this director and.

F

E

The help command you can see all so.

A

G

That's a problem, so you you cannot.

H

Floor with a mouse to scroll in this work session,.

C

You have to use also a command.

D

Control P and it.

A

Depends a little bit on the.

H

Machine I think so I.

G

H

G

A

On the Mac, you have to.

E

You have to use the key control key.

D

And the FN key and the error top and down- and in this way you can.

E

Scroll here and you see it on the white top.

F

Here the position so in screen itself and to.

D

Leave this this kind of mode, you have.

E

To to press escape now it's gone here, then you can use.

F

Your command so.

G

As you can see here, you will have a lot of docker.

C

Composer files.

A

And they come in different flavors.

G

And you can do a lot with this squid and.

A

But everything is done.

H

I think in two steps the first step is to create the article.

G

The network route to material and.

A

The second step is to start the network and to.

H

D

Crypto material we can use the build.

A

Your first Network spirit which the tree from which they come and generate, and when we do this in this way, then this works and you will create a channel which is called my channel. And when you want the other channel a name channel, then you have to take.

H

G

Parameter C for channel and you can give the channel your own name so.

D

Now we try this.

G

And you see all the crypto material is now created.

D

A

You see so the crypto config folder.

C

Shows you that you have one order, one order, one in the organ organization: that's called example.com and you.

H

Have to peer organizations, and this organization are.

G

Called art one.

E

Example of common talk to example.com.

D

And with the tree command, you can inspect.

F

E

How is the structure from this folders.

D

A

D

Will don't look too much in.

C

This configuration and in this.

G

H

A

Because we are here as a developer and the developer point of view is a little bit different from the administrator point of view and but one requirement to develop fabric.

H

Instil a fabric application is to have running favorite Network and that's the reason by we doing. We need the installation, so we have to test our application. We have to test our train code and that's the reason why we should familiar with the build your first Network examples and.

D

Then we can start.

A

The network- and this is basically done with.

H

The app parameter with the up command and we have to call also BC parameter with the channel.

D

And when we do this.

E

But the network will now.

F

H

As you can see, there.

E

The channels, the docker images are started, the channels the channel is created. The Ottawa has started the organization's.

H

Started and the chain code.

A

Will be installed and the chain code will be also tested, and it's. This takes a minutes and.

A

With this basic setup, we.

H

Can use the CLI container to interact.

A

With this example,.

A

And in this way,.

C

You can play your first round with fabric and you can look. How is this working and.

E

Can try to understand how what is going on and yeah.

A

I think I think the examples are very good. You can learn a lot from this examples and you can also switch to the.

F

Centers on github.

A

Find this examples.

H

Here but when we go to github you.

G

Have to be careful, because this is the master.

C

A

New master punch this.

G

Is the latest punch, so what we need is the release 1.4, so we have to switch over to the 1.4 and.

G

This is basically the version which we have installed now, but I think.

D

This is one for seven and.

G

And here you can see also.

F

G

Explicit explanation, studies.

F

And now so all good and.

H

It seems to work so now we can look dr. PS.

D

We can see okay, a lot of container are running.

E

Compared to our.

F

F

G

We can see here the CLA container, this warning, we see the Ottawa is running this one. So.

E

We see piano, Bhagwan is running the PS running, we see Pierre one organ part, one is one and.

H

The same for the organization to PM oil p0.

D

And p1- and here you see.

A

H

Code container, so chain code is running in own.

C

Container- and this is called a chain code.

H

Container and you can see through the installations for the script- the chain code example co2 with the name. My train code is installed and you.

A

C

That's installed on one piano.

D

Park to piano and a2 p1, but not on one.

H

A

That's it's a little bit interesting and when we try to white note rails application, then we will have a little bit problems with this configuration.

H

C

The node.js application used in the.

H

Gateway class and discovery service, and this discovery service is looking for. They appear one in.

G

Work one and sometimes.

H

There's an error so, but we can adopt the script that.

G

We have also the chain code installed and pr1 org, one that.

E

This that this problem will not happen.

D

H

Now this works so, but we can use also.

A

Our locker commands to see it a little bit in a more compact way, so.

C

As I've mentioned, every dacha is heavily used in.

B

Fabric, so you have to be fair with.

A

C

But you don't need so much commands from Dhaka, but you need a few commands and there are good doctor cheat sheets. I want Internet. So when you google, for Daugherty sheets, you will find a lot of documentation to this and then with this commands you can you.

A

Know the this a a good reference and you can learn.

D

From these commands so now this is running.

A

F

D

Okay, this is code rickety so because of the time I will jump here to to test something. So, okay.

A

G

System is running so, but now how we can interact with this boosters.

A

Blockchain and for.

D

This we can use the new light container and when we, when we try to go into a theory like container, you have to use this command so with the docker exact command.

H

We can switch into a.

G

One on container the IT parameter here it. It means that this this session is interactive, so it means.

H

That you stay in this session, then you can say the container which.

A

We will exact and then the command.

H

Which we will exit in this container so and what we need this as a command aligned and with this.

A

Command, this is a basic command to access.

G

C

Docker container, and with this we can switch into this container and.

H

C

H

Can see here we are not inside the.

G

Cli container and.

H

This container is a toolset container with which is prepared to interact with the booster doctrine so and when we are going when we try to create now our.

G

Blockchain, so we want to know the value of a.

H

Value of P, then you have to use the query command so and when you start with this, so it's important to understand which chain code is installed and how this chain code is working so that you can play with this. So in the favorite example sound samples. There are a lot of chain code examples so and when you install this, you have first I think it's a good idea to to analyze the chain code itself that you know. What is what.

A

Is the aim of this chain what do, but what you can do with this chain and.

H

Then you can play with this mr. six numbers so and.

F

G

Clearly, the the lettre.

H

We have to use a command and this command is called peer, training code, query and it's pretty straightforward and with the C command you can say which channel you can query in my script, I have used.

G

Something sometimes environment variables to reduce the amount of.

F

G

To reduce the length of the power-ups and so on, so you can hear use this environment this variable or you can wait also.

A

Chain one and then.

H

You have to call the name of the train code, so we have to say which channel, which chain code and which come on yeah- and you see this is a C in uppercase, and this is in lowercase and.

A

H

Is the command and the command is query and query a so, but this depends really on the chain code so and it's so important to understand, trusted wrinkle.

D

Okay, now so we can.

C

Check it, this is also in one command print.

G

End so you can see your environment variables on.

E

E

And you see, we have an environment. Variable channel name is like Gen 1.

D

So, and with this, we can call peer trained.

C

F

G

And you see, the value is.

F

There and we create, be you see this.

H

And that's how you can create this lecture and.

D

With this command print n webcore.

C

You can see some important commands and not.

H

Command environment variables, so our favorite.

B

Environment, where variables will.

H

B

H

Front disco, which.

A

H

You have to look at least variables.

C

Because these are parts to your genes.

H

To the certificates and so on.

A

H

A

A

And we, and now we aren't clear, 0 org, one example.com, so this this is the default.

C

Configuration these are default environment variables because in the docker compose a file there, this.

H

Environment where variables are set so and when, when we try to create the arc to, then we have to change this variables to.

C

The proper path or the arc to.

G

H

In and in this example, we.

G

H

G

The work one with work to in this variables and.

H

G

Then we can query PLC or to and can check if the if the value is also on the second.

H

A

Now the time is one.

F

Consumer issues and you can accent.

F

E

Like container and with.

C

The commander control 3d touch. You can.

H

Exit this session, but.

C

The network is running, but you can inspect the network as well in this pose. So without the.

G

H

Then you can see also here that the network is running and you can also use the CLI command from this position.

A

And you don't have to use the multiplexer for.

G

This, but it's useful when you menu, wants to have this split view or when you have background task which is running, and you don't want to when you.

C

Lose your SSH SSH connection, then the task we want. We run in the.

H

Back so I think we.

A

Are done with this all so I have to.

H

Say, thank you. I hope that you have that.

A

You did you've learned something in this session and.