Hyperledger Foundation Meetups, 20 Jan 2022

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From YouTube: Script-free, Production-Grade Hybrid Hyperledger Fabric Deployment & Management

Description

A virtual meetup hosted by Hyperledger Dallas on January 20, 2022 featuring Lino Quagliariello, Product Manager and Blockchain expert at MDxBlocks, and Swapnil Daphidale, Senior DevOps and Hyperledger Fabric Expert. Learn how to deploy script-free, production-grade, hybrid Hyperledger Fabric 2.2 networks using only free UI-based tools. Also, learn how to invite organizations, create channels, deploy chaincode, manage certificates, manage peers, and more, all without a single line of the script.

More about the meetup is at: https://www.meetup.com/Hyperledger-Dallas/events/283085184/

A

B

You are now live all right good morning, good afternoon, good evening, everyone, wherever you're joining from, and thank you um for joining us today. uh It gives me great pleasure to introduce our speakers of the day. uh Lino uh quakiarie, hello, correct me. If I'm wrong, um he is a product manager and a blockchain expert at mdx blocks. Lino has been working with enterprise blockchain for the last four years and he's passionate about the space.

B

Please believe me when I say really passionate you can ask him about everything: he'll have something to say, um and he also will be uh joined by swapnil. Swapnil is a senior devops and the hyperledger fabric expert.

B

Today's topic of presentation is script: free production grade hype, hybrid hyperledger, fabric deployment and management, and it gives me actually I'm more excited for this presentation today, uh because uh leno is going to dive right into the tools and show us how things work you know. Typically, our presentations are about a speaker walking us through um information. You know via slides and decks, but I think today we'll see them getting their hands dirty and and real-time deployment.

B

With that, I will open up the floor, but before I do that a quick housekeeping items, if you have any questions, please feel free to put that in the chat. I will be monitoring the questions and we will uh table that towards the end as lino and swapnil have finished their walkthrough, and with that I will open up to lino the floor. Is all yours.

A

Thank you very much giotti. I appreciate the the introduction you got my last name right. That was very, very good, and uh so today we're gonna present a way to deploy hyperledger fabric uh without using any scripts and uh as giotti mentioned I'm joined over here by my colleague um and he's gonna. Do the the demos so he's gonna get the his hands dirty.

A

So the idea of uh synthesis is started when um we thought about a network with you can have networks with a hundred or thousands of companies, and every company has their own their preferred infrastructure. So you can as well have a network like the one you're seeing right now on the screen with a beautiful mix of infrastructure.

A

So when you have a networks and the greater the networks uh more complex, how do you keep every single peer that the organization is responsible for their peers and every single peer up and running uh all the time with scripts? So it becomes overwhelming and uh that's why we created synthesis. That is uh only uses a graphically user interface that you're gonna, see on the demo and connects everybody uh seamlessly.

A

So uh it's just a basic invite and the companies join the network and everything is, is done using a graphical user interface.

A

So just some features.

A

It's important to mention that synthesis is a free tool, uh so you can download as many uh as as you want and uh create your network or create a production grade network. uh It's important to mention that synthesis is a client, so you download the software and install on your infrastructure.

A

So if you have azure you download install in your infrastructure, if you have on-premises you're going to do the same uh so on any cloud you're going to download it install on on your own infrastructure- and this is important because users they have control over their infrastructure on they- have a control over their data. They have control over their security.

A

So synthesis allows for that and that's how synthesis work there is no limits on channels chain calls transactions. Everything is, is unlimited.

A

Synthesis is based on kubernetes and the idea of synthesis is to make uh the experience as easy as possible. So synthesizing includes a auto deploy for kubernetes clusters.

A

We have a specific tools for aws, azure and gcp and on-premises, and if needed on any other cloud, you can use the on-premises to create the kubernetes cluster or, if you have your kubernetes cluster synthesis can connect directly to it.

A

We just thought that would be nice to offer the auto deploy for people that have no experience with kubernetes or leader experience with kubernetes. Also synthesis provides an api to handle any operations with chain codes. We're going to go through that private data collection and hsm, and also as an add-on support.

A

And the model of deployments that synthesis uses is the admin, so the admin is deployed first and the admin invites all the other organizations. So the admin is responsible for the governance management of the network, and with that, with that brief introduction I'll hand over to swapnil.

C

Cool, thank you, hi everyone. So let's just uh jump right into the demo and see how things actually work. So to do that, you would just visit synthesis dot io uh before uh going ahead. I just like to highlight the four steps that we would be basically having. First, we would install a synthesis download. This is an uh dashboard client with which you interact with your network, so you would install it. Then you would deploy an uh hyperledger network. This would consist of the consortium network which would have orders nodes.

C

Then you would invite other organization do these. Invitations would be for the peer organization which would be joining your consortium and then that's it. You would manage everything from a graphical user interface, all further operations like creating chant code and channels and all those things, so you can just naming it to download, and then there are few sign up steps that lino can show you later on. But that's how I mean. Basically, you would just get started.

C

When you, you, basically are logged into our platform, it would land up on this page over here, there's an option to download a client.

C

If you click it, it would actually download a zip file which contains the installer. This installer is compatible uh with linux uh centos as well as ubuntu.

C

You then uh create an virtual machine in your environment, so whatever environment that you have meaning any cloud provider or on-premises for this demo, I have created an uh demo ec2 server on aws consortium demo on this, this is a small ec2 server. I just moved this zip file over there and a random installer.

C

I mean it's just a simple cli everything is available in documentation after the installation is done, you can simply open the ip address and you would be interacting with, and user interface, which looks like this now over here, you can login with the email address the same user and password that you basically used for signing up.

C

Now, basically, you have this client, you need to authenticate with so that I mean this virtual machine or this dashboard is authenticated with your app. Only so just go back to synthesis, launchpad and register your client, you paste your client id, and that should be the registration process just go here and refresh.

C

Yeah now you are basically welcomed with this launch wizard, wherein you would be defining few attributes for your blockchain network.

C

Let's go through it. So, first of all, we uh need to define a name for your blockchain network. uh You can define whatever name that you want, then you can you're asked to give our username and passwords.

C

Then we need to define and certificate authority. This certificate authority is for our order network or the admin network. So I'm just giving a name and some user again. uh My notable username that you want.

C

Let's just support hsm but I'll skip it for now.

C

Then for root certificate authority. Right now we are supporting auto generated roots, ca certificates.

C

Then, uh for communication between network you can have an automatically generated tls certificates.

C

Now you can define order names.

C

Then uh credentials for ad order and how many nodes of orders that you would want to have in your network. So these are actually I college fabric order, notes that would be spawned after we basically proceed ahead.

C

Now here you have two options: synthesis at the back end can create an kubernetes cluster for you and on which it would basically configure all the hyperledger related uh components.

C

Alternative is that if you have your own kubernetes cluster, you can just point it to it authenticate with it, and you can use your own kubernetes cluster as well.

C

Otherwise, synthesis can help you to get started with uh with it, so meaning synthesis would create or deploy and kubernetes cluster. For you.

C

uh Now you can choose any of the supported infrastructures that you want to have. We currently support aws google cloud azure as well as.

D

C

So uh I'm just choosing google cloud for now uh and in demo I can show you more, this uh async cluster name. This would be an actual cluster name for the kubernetes cluster, not the network. So I mean anything that you want to mention. You can do it here then, to get started.

C

You can add a the nodes under this kubernetes cluster, how many nodes and what I type of configurations that you need so in gcp you can define and what, if whatever number of nodes that you want, I am just choosing the default to virtual cpu 7.5 weeks of memory and count as two I mean bare. Minimum two should be fine, the region that you want to have the zone that you want to have.

C

Then now now you need to authenticate this synthesis platform uh with a cloud provider in each and every cloud provider. We do support multi uh various ways in google's uh gcp. uh We have defined some documentation wherein you create and service account. You generate keys for that service account and those keys for service accounts are being used over here.

C

So just navigate to your credentials and you can upload json. That was there for your service account.

C

It uh but it at the back end it just initializing, with your cloud provider with given uh access, if anything, any authentication issues, it can just show you over here, and that should be it. We are ready to roll uh this provisioning would take some time. We definitely should have some quotas available.

C

The details are provided in documentation once you click finish. It would just go ahead and click create and kubernetes cluster with defined details. It would create an hyperledger network with defined order, nodes, etc, and it would just take some time so I'll just be skipping this step and show you, then the actually created network that I created just before this call.

C

Once that provisioning is done, you would basically be shown this dashboard. I mean this is the same virtual machine that you installed your dashboard, dashboard and once installation is done, you would be welcomed with this dashboard.

C

In my setup, this is the consortium admin again. This is installed in aws. At the back end, I chose aws as in cloud provider and created in kubernetes cluster. It is in managed, eks keybinders cluster.

C

Over here I had chosen one orders nodes. That's why orders are one channels, peers and chain codes. These are the things that I added later on. So in your case, you will just see one order. Only now till this point we have an organization, we just have orders.

C

Now you can go ahead and add more peer organization. Right I mean you can invite another organization say that hey you can connect with me, uh invite them to this consortium, and then you can create channels between them and move ahead with that.

C

So to invite organizations pretty simple, you just go here: click on invite organization, give an organization name whatever email address that you want to invite to.

C

I'm just typing some sample email address and number of peers that this peer organization might have, so you can choose one to win whatever you want to, I'm just choosing one for now and the permissions that you want to set.

C

If this is actually I mean organization or not, can add multiple rows and send invitations for all of them, I'm just sending it so upon receiving in invitation, you would be getting an email and this email would contain all the details uh about how to sign up, and it would be similar a similar visa that we we already had, meaning uh you would also have a new account. I mean this. This organization would have its own account.

C

He would get its own downloadable or, however, whatever we chose from over here, so he would have his own downloadable and his own client.

C

Now, in this case organization, one this I created an ec2 server in aws again I installed a zip file, whatever installer that I have I registered with the same steps and then I would again be welcome with similar wizard, wherein I need to provide same things as whatever mentioned. Instead of orders, hence I mean this time I would just be uh adding a fear name, number of peer nodes and again choosing whatever cloud provider that this organization wants.

C

In this case, this organization is deployed in aws, similar thing I did it for organization 2 as well and over here organization 2, is on google cloud. So, on google slides same thing, I created a virtual machine machine called consortium out to install my downloadable uh and went through the wizard. That's how? Basically, whenever these organizations are ready, you would see status as active. So in my demo my example I had two organizations.

C

One organization is in aws. Second is in google cloud status is active because they are already created.

C

Okay, you can also, when you see what all the peers and anchor nodes are there. Now you have organizations over here now you can create channels between organ and again. You can have any number of organization. You can create channels and install chain codes on those channels to create channels. You can just naming it over. Here again, I have created some sample channel, but here's how you can create new channels and just add channel, give it a huge uh channel name whatever that you want to have.

C

Let's say I have an app channel, I already created just adding it. You can just give a description.

C

You can define attributes for this channel. The orders that we already created would appear over here or data organization.

C

These policies, your I you might already have seen in the config tx file of the name of the profile uh that you we create.

C

Then you can choose any number of organization that should be invited to join this channel. I'm selecting both of the organization.

C

Sorry, this channel is this should be a channel name. I mistakenly added a chance name, so it should be some channel name. Anything is fine.

C

C

Cool now from administrators perspective, you have initiated that uh any I mean this channel should be uh I'm inviting these organizations to join this channel.

C

The same thing uh organization uh in organizations dashboard, you would be basically have and uh all the controls over here, whether you want to approve or join this channel or not both of the organization would receive these notifications that hey admin created in channel 2. Do you want to basically approve and go ahead and join this channel or not? So we can just click on approve at the back end right, approve and move ahead. Similarly, for organization 2 as well, it should appear over there yeah same thing. You approve over here as well.

C

You will sustain progress, it might take few seconds.

C

Okay till then I can continue so basically when these are the channels have approved from both of the organizations.

C

You can, I mean, there's an option over here to create and channel actually create and join time, so this organization would uh join after the channel is created once everything is done, these kind of statuses will be here. Channel status is active and organizations if they have joined or not. If they didn't join, you have an option to retry.

C

If there is failure, you would get an email address, saying whatever the issue is and along with some logs now, you have channels, I mean you, can just click over here and see what channel I mean. What all things like this channel consists of right now. It consists of some chain codes and just click on channel and see what what all settings that you selected for creating the channel see this, or this is also now ready to join.

C

So I can just click on join over here and so that this these organization will individually can join to channel two and just keep it for now.

C

Now, in this example, I have channel created to work on peer organization already joined. I can now go ahead and deploy a chain code on this channel.

C

You just move to this chain code. Section again, a sample chain code is already applied, but here is how you can deploy a new one.

C

So you can even change name select a channel. uh You can select any number of items. Sorry, you can select on a channel from list of channels.

C

Then uh there would be an uh zip file which contains uh your chain code actually with its uh dependencies mentioned, like package.json and all those things. So in my case, I'm just using this app car example.

C

uh Now I've seen supports these chain code, languages javascript and go. uh You can select whatever chain, whatever language that chain code was written in and the version of the language that was used to write the chain code. This is used to resolve dependence. He is in the back end multiplying chain code. This was written in version 8.

C

I just add the description.

C

Now you have an option to execute init method. If your chain code has have some in initialization method, you can mention it over there optionally, my chain code, these five card chain code heads an initialization method called edit laser. So I'm just mentioning over here.

C

Again, though, our channel has both of the organizations on it, you can optionally choose if this chain chain code should be deployed on single, no single organ for single organization or both or all of them, there's an also an option for private data collection. So you can define some uh private data collections over here and have an access level access control over it.

C

Yeah, you just add in channel you will have option to deploy.

C

It will again send some notifications to both of the or the selected organizations that you need to basically approve it from your site as well. It's it's actually kind of voting system.

C

A

It's waiting for april, it's not.

C

Installed, yeah right so on your organizations, this is again odd one in aws. You also have an option to approve the the chain code. Installation from your side. Similarly, an organization to which is in google cloud needs to approve the chain code from his side as well.

C

Might take some time over here.

C

Okay, once the approval is ready again, it would take few seconds to reflect back back to this administration dashboard dashboard.

C

Now I mean approval is ready, uh then uh this this just goes ahead and installs. The channel.

D

C

Chain code, once the installation of the chain code is ready, uh you can invoke it invoke the methods that are defined in chain code and it would actually interact with hyper ledger and underneath and do the blockchain related transactions.

C

You have two options and you can go ahead and invoke and query from this ui that is provided we also support apis so that those using those apis your applications can interact with the hyperledger network that we just deployed I'll just go through uh the step. I mean one way of doing it is just executing it over. Here. You have invoke and query options in my fab card chain code. I think you are also you are also familiar with it. We have some methods defined like query all cars, so I'm just using that.

C

If optionally, I mean, if your method has some arguments, you can provide it over here now. This is actually executing the chain code and getting all the or querying all the uh all the transactions that that were there all the data. That's there.

C

Another method of interacting with this chenco is via apis. Now. uh Api documentation is also again uh mentioned. In our help section we we also have created and postman collection so that you can go ahead and test it so using postman. Basically, we would be interacting with our network and do the chain code operations to do that. First of all, we need to authenticate with our platform right, so we have this uh init api cloud, login method. uh The api call over here.

C

uh The url is the same as the administ admin network that we have so. First of all, we just authenticate with it with our platform and get some kit a barrier token, which would be used for further further transactions. So I'm just mentioning my username password uh and just requesting uh it's in post call requesting and token for it authentication token.

C

Using this, I can just basically copy this barrier token and have my further api calls done. Example, again: query transaction. I if I need to query the transactions in my chain code, which is installed, so I just go to the dashboard chain code. It's here see the details just get this grab this chain code id and use this in my apis, so see api, query transactions and my chain code id.

C

I use the barrier token. That was uh that I, which I received in step one and simply I can initiate or call this api and get the details.

C

This was query or you can also invoke some transaction and have execute the necessary methods that that those were defined in in your chain code. In my case, uh it is in create car. So let me just create car with some uh options. uh Car number is car. 22, it's owned, a cord in blue color and user name is alice.

C

So yeah gen code is invoked now. You can also query the transaction same thing chain code id um the method name, which you defining your chain code in my encode. It was query card and it accepts one argument over here. I can give car id and it can retrieve the transaction that we, the data that we had put on our blockchain application, blockchain network.

C

Okay with this, I would just hand over to lino. Thank you.

A

Thank you shot new, so.

A

Because, as you saw with the swap new, uh you saw the the platform but to register it's very simple: just go to synthesis dot, io click on download and when you click download. Now it's going to ask you to register and you're going to see after registration you're going to see this screen and just follow the steps that swapping you described to be able to deploy, install synthesis and deploy hyperledger fabric.

A

We have the knowledge base called help, synthesis dot, io here so you're going to see many articles. I suggest you start with this article over here, which is uh synthesis. 101.

A

That's gonna just uh go step by step how to proceed and point to the other articles. That may be helpful.

A

And as a roadmap, because I imagine everybody's wants to know what's coming for synthesis, we are finishing uh external intermediate ca. uh You saw the deployments that that's not ready. I should be ready in the next month and then we have this list. One of them and as I saw there, is one question about orders.

A

Today we deploy only the order on the admin network, but uh soon we're gonna have as many other orders distributed as uh needed, and many other features, as you can see over here,.

A

Before we open for questions, I just want to thank everybody for your time. This is going to be a community driven uh project.

A

What I mean is whatever the community requests you're going to be implementing, and if anybody works in a educational institution uh we like to work closely with educational institutions in a way that uh students can have the network ready for them to start playing uh with uh with hyperledger fabric.

A

The idea over here for synthesis is to remove the complexity of the infrastructure level infrastructure layer, so everybody can focus on the business outcome on the architecture of the the blockchain network, the architecture of the smart contracts um and in um please feel free to open a ticket on knowledgebase or email me directly.

A

This is my email, lina census.io, please feel free to send me an email connect to me on linkedin and for everybody that is uh listening to us, that has a passion for our hyperledger fabric and hyperledger environment ecosystem and want to join us and help us. Please send me an email, too, okay, and with that uh we are going to open four questions.

B

Thank you lino. That was a wonderful presentation, so I have to say: I've been working with fabric since it's 1.2 version, and I wish this was around then around 2017 2018..

B

um It took away a lot of challenges of coding in and using the cli, and I I don't know how you know if you thought of security, but this process and this tool takes away so many security complexities. When it comes to building the infrastructure layer, um I can name like five. On top of my mind, you know even to begin with, like that developer insider threat takes gets taken away, and so there are a lot of benefit security benefits also for using tools such as this.

B

So let me jump into the chat questions I have. um I have a few but I'll table them towards the end, um our guests first. So first question is from suresh um again you know um everyone, please feel free to unmute yourself and ask your question, or since you put it in the chat, I'm also happy to do. Whichever way you know works best for you, I'm I'm happy to do both um so first question in the chat was from suresh he's asking: do we have an mfa option enabled for admin account.

A

C

You nope right now we don't have mfa, enabled for uh our dashboards. uh Definitely we can work on it.

D

It is just uh uh sorry this is just to you know, see. uh Where do we evolve from a platform standpoint? It looks like an integrator, so a couple of features are like you know, basics when it comes to integrating or adding networks. One is the management of security, so just posing it to understand.

D

Is there something in pipeline or you know? Is that easy to do it um just for learning purpose? And then you know, I hope all the questions are taken supportively here.

A

Sure let me address that when we develop develop synthesis, we develop the all the basic features, as you can see, um and the idea is everybody can can deploy and work and test, but each deployment is going to have different needs and, of course, we are hoping to customize that at any given time.

A

So we have our roadmap, but if, if anybody wants on a specific that has a specific need, just contact me, you can can contact me through the website through my email, and we can discuss that. Okay, but uh again, these type of questions, this type of interactions is important to us for us to manage our roadmap, so if not customizing to a specific need. Definitely, if you have this request request many times it's going to be it's going to take priority in our roadmap and one thing about synthesis too. This is pure hyperlager fabric.

A

That is nothing that we created, that is proprietary. Everything is pure hyperledger fabric.

B

Good to know soon, as you have a few um other questions, would you like to continue and ask them.

D

Jodi I have background noise. Would you mind going through not.

B

D

B

Let me wrap up suraj's question so when it comes to adding organizations of a permission blockchain, how does the organization manage their resources or is there a primary admin who will manage the resources.

A

um So I can take this question. um Everything is agreed when we have a a private network with the admin. So um when you talk about I'll have three four five years so everybody's gonna agree, they need the resources for that. Of course, uh you can have more than that, but that's a agreed beforehand.

A

uh The the number of resources and also you can always use out scaling if you want to you're using kubernetes. So you can use that feature too. I don't know if I answer your question.

D

Yeah, I think you did you know, because when we add organizations right so the the purpose of this hyperledger is like you know, decentralized permission is like you know, um everyone can do anything or the visibility is there from a transaction standpoint, but um uh onboarding and or that is an initial step right, probably like attaching a domain to the mind and post that um you know there may be a lot of changes within the organization layer. So uh that's where I was thinking you know.

D

If um if it needs to be handled separately or probably you know, we may have plans to do it later. That.

A

That's that's a good question. Let me let me add something to my answer. So at any given time. Let's say that uh you invite an organization and- and the architecture asks for two peers- and uh you authorize your organization to have two peers, but then things change. So the organization now needs two more peers. uh It's just a simple request.

A

uh The organization sends a request to the to the admin and as soon as the admin approves the organization.

A

Automatically can spin spins more to more peer notes, make sense.

D

A

It's very dynamic: uh it's not the first configuration that can change. That is gonna change right uh in the real world, so we cover that it's just a request. The same way. There are many requests. We didn't cover everything on this presentation but, for example, let's say organization one wants the organization to to join it. Can it may suggest to the administrator to invite that company? So there are a lot of features that we didn't cover on this presentation, but that is an interaction.

A

What I mean, that is interaction amongst the organizations and the organizations and the admin uh within the system not outside within the system. But uh what you're gonna see in the real life is both right. uh You can make a request, but it may email or call the admin and and to move forward the process.

D

Yeah thanks lynn,.

B

And the follow-up question is: how are roles and permissions managed? Is it supposed to be done on the hyperledger code.

A

I'll stop in you.

C

Okay, so roles and permissions uh whatever users that we created, we had few options over there to select if they are admin or not uh anything beyond that. Yes, it should be hyperledger code.

D

For example, so swapnil it is like you know, pii or, like you know, some information which uh you know organization a does not want to show to the overall network. So um so that will be done on the code. Is it.

C

um Would that be the private data collection feature.

D

uh Yeah pretty much, it sounds like it. That's why I have like you know uh what is covered in the private um data collection feature.

C

Yeah uh lino, if you can just brief about private data collections,.

A

Yeah, the private data collection, uh we implemented the the exactly what uh the hyperledger feature. So, if you have a channel where you want only a few of the organizations to see something, you just create that when you deploy the chain code, you just create that as a private data collection, and this data is going to be only for the the organizations you select.

D

A

Answer your question follow up.

D

Yes, yes, it does it does you know uh one follow-up to that. You know answer right. um Let's say if there is an auditor or a regulator who needs access for a specific period of time, uh as part of you know their validation or auditing purpose.

D

So uh is there anywhere we can, uh you know, uh provide and controlled access to what they need to see, because in the end of the day they want to look at every transaction and log right and you know, specify duration, so that it kind of um you know goes away at a at one point of time.

A

Yeah, I suggest that uh to be done using the api and querying the the ledger and having the access on the application layer. um I don't know if that would work for you.

A

I I think uh to give up access to the ledger with certificate and everything would be rather complex, um and but we are open to to discuss that. I don't know if swapping you has any any other ideas.

C

Yeah not right now I'm going to discuss videos about it.

A

But suraj uh we don't have a feature for uh auditing other than the the access to to the chain uh to the ledger. But uh if you have anything, any suggestions uh that uh you know uh we are hoping to to to discuss with you and.

D

Sure, surely no about the roles right, it's like you know. How do we categorize the rules and uh how do we.

A

Yeah, because because uh you can all you can handle that through the infrastructure layer you can handle that uh through the application layer, so we can, we can discuss doing that on a hyperledger level. uh Definitely us.

B

Right moving on to the next question from team grinch are the networks of synthesis interoperable with fabric organizations that were set up without synthesis.

A

That's a very good question, and this is on the roadmap right now and considering that synthesis is free. um uh Ev every organization must use synthesis right now in a network, uh but uh for the sake of uh flexibility in considering that is a distributed network. um This is a net. This is the next step, so this first step what we have. We have a free tool that can connect to any cloud and on-premises, and on top of that we deploy the kubernetes cluster.

A

So this is the first step. Next step is to connect to uh any other organization. That is not using synthesis, but has the uh you know respect the same version, this all the governance of the network to be able to join.

B

Wonderful um next question is from jigma bora who's asking do you support node.js for chain code.

A

Yes and that's a question to swap in you, I saw that uh we we named javascript, but it's actually node.js subtitle.

C

Yes, yes, we do support node.js and yeah. That example were not node.js version. 8.

A

Okay, so yes, actually, uh we may need to correct that when you select the version is node.js or go. Those are the two we support currently but, of course, we're gonna add more. The roadmap has uh external chain codes as uh one feature, so we're we're. Gonna add with the with time we're gonna add more features like this.

C

Yeah, I got a quick question. This is joomla again sorry to interrupt, but do you.

A

Do you what happens if an organization goes away.

B

Like it doesn't want to participate in, you know in in the network anymore, for whatever reason business reason. So how do you take care of that.

A

Yeah today, today, you're not taking care of that that's a part of uh to implement and that usually, when, when organizations are participating, uh the way to uh move this organization out of the network depends a lot on the on the consortium. What the consortium decides to do.

A

So it's you trying to figure out a generic way to do that, uh but that's going to be very technical, you just remove the the you you're not going to take care of admin stuff, it's just the technical part of removing the the organization, uh and let me ask so only swapping you swapping you uh are we do we allow to remove organization right now or we are working on that.

C

No, we are working on that. Removing network would mean that uninstalling chain codes are removing that organization from any channels that that organization had participated in.

A

Yeah we are, we are currently working on that so right now we don't have the feature we should have the feature in the next month.

A

Thank you sure.

B

Right next question is, so is the first org the only order and the controller of a ca certificate authority.

C

Okay, actually yeah, so the first organization right now is order, uh but as uh as I, as lino already mentioned, we would be having a distributed order. So other organization can be ordered and about ca in real world scenario, every organization, be it peer, org or the order, would have its own ca.

C

So, in our case as well order organization has its own ca. Peer organization would definitely has its own ca.

B

Okay, okay, so does the synthesis tool support vm failover? That is one vm from a fabric network.

C

B

Another vm can take over.

C

Sure to provide the same service sure so the vm that I was showing you uh wherein we installed the dashboard.

C

uh It's just uh for us to interact with uh the basically with the fabric network that we have, even if it goes down it won't cause any issues in the fabric network, meaning in the peer nodes and order nodes that that are already running. Those are simply separately running on in kubernetes cluster and in kubernetes. The failover is already handled.

C

So even if the vm fails over shuts down or if you haven't, if you just destroyed or there's some hardware degradation, you can just install the downloadable package in new virtual machine. Do the registration uh step again! It's just adding that registering uh with your client id and everything should be there, because most of the things are already in kubernetes.

B

Got it um um suresh in the best interest of time I'll come back to your remainder questions just to be fair to other members, um so the next question is from how do you handle chain core events.

C

uh Need more details? What kind of chain code events.

B

Would you like to unmute yourself and um ask the question.

B

um He seems to have left. Okay. Next question is from rodrigo. Can you tell us about a successful use case.

A

You can tell about many successful user cases. One one I can mention is a few distribution so, where blockchain again, blockchain doesn't work by itself right uh blockchain. At the end of the day, you're gonna use with uh iot, you may use rpa you're gonna use a lot of integration, and in this case we use a iot devices of flow to measure the amount of fuel that went to a gas station. But everything started at the refinery in houston and move to all the way to mexico.

A

Together. Stations in mexico, but blockchain is, is pretty much only the data repository there's a lot that is done on routing, there's a lot of done with iot, but that's that's a user case. The other user case is provenance and we have provenance all over the place right. We have prominence again in oil and gas when you talk about pipes moving and that there are some very, very specialized bolts for um when you have all your exploration, especially.

A

Any type of oil: well, you need specialized bolts, so you need to control that through the process, you need to know exactly how many times it was tested or if it was reconditioned. So that's another one. You see that with food uh we are. We are now working a project. I cannot open many details, but um is on agriculture, so it starts from the seed and goes all the way to the seed becoming a a cooking.

A

You know: output, output for cooking um and every step of the way, including government control, because the government is involved, so you have, you need to be able to track back and show that that specific seed has this genetic composition and and and the end result is pure. So that's that's another example that uh we have.

B

Awesome um next question is: when will um when will the supporting supporting of multiple or distributor order nodes be available?.

A

I should be available in about, I would say two months or three max: uh we've been working on that already. So um what we? What we learned about hyper niger fabric is nothing is simple.

A

Nothing is, is very straightforward. So there's always you know some surprises here and there, especially when you work with kubernetes, so you're doing uh a hybrid. uh You know mixed infrastructure and using kubernetes, and it's very tricky. So when I say two to three months is because we are used to have some surprises with hyperledger fabric, where uh pretty much. uh We cannot find an answer anywhere. So we need to figure that out so I'll, say two to three months, so you're going to have that ready.

B

I second you on that. It is quite complex. um Next question is: does it have a kubernetes operator like as in? Why not use an existing kubernetes operators for hyperledger for day two operations.

C

Yes, so we are using helm, charts uh to deploy all these things like order, nodes appear nodes and whatever uh workflows that we have, we are not using communities operators for data operations. uh Basically, this kubernetes clusters are again created in your environment, so in case of aws, it will be case cluster in case of google cloud. It could be gke so from day to operations perspective, it's your environment and you own the environment.

C

So you can just go ahead and maintain uh the kubernetes based operator of whatever data operation that you have it scaling or upgrading versions, etc.

A

And it's important to add that if you have your kubernetes cluster, let's say you use open shift or you deploy your own aks.

A

uh It's easy to connect to those you just offer another level of you know we deploy kubernetes for you to just to be able to help those organizations that don't have the the resources or knowledge to do so.

B

All right, the next question is about use cases which you've already answered. uh Another one is a follow-up on the kubernetes. uh If you use bezoo operator.

C

As I mentioned, we use charts instead of operators.

B

Got it okay, and that marks the end of the questions on the chat we have about two minutes. um I had left behind suresh's questions.

B

So it would be a great use case or a demo when you compare the manual effort versus synthesis spanning nodes and monitoring. Consumption appears to be a challenge. Any plans for bringing in a central, hybrid infra monitoring, gui.

A

I I may I don't know if you can clearly understood the question, but there are so many tools out there that you can connect to to the network I see is splunk. Has a beautiful tool uh to monitor the hyperledger so.

A

We don't want to compete with splunk on that. I believe uh the the tool that they offer is very, very complete and specific for hyperledger fabric, so we offer only the basic information for for the network and our goal is as hyperledger fabric specialists is to be able to offer more on the hyperledger fabric side, instead of offering on the dashboard side that other people they are doing really. Well, I don't know if that answer the question.

D

Leno uh you know I did not mean to ask about synthetic or transaction monitoring uh elements. You know which pretty much splunk has really good dashboards. uh I I'm talking about you know as the network deployment and you know, number of nodes gets added. um The question is about the consumption because you know because of cloud, and you know auto scaling and infrastructure as a code practice, we keep spanning instances right at one point. It has to go down. uh It normally happens.

D

uh You know uh as part of your load balancing efforts, but I was just you know, trying to see um apart from uh the dashboards within aws or gcp. Is there a way we look at the current active nodes that consumption in that angle? Not a transactional or you know synthetic anchor.

A

Okay, something new: do you have an answer for that.

C

No, we don't have that information on synthesis dashboards.

D

B

All right um we are at the top of the hour and in the best interest of you, know our presenter speaker's time. In respect of that, um I don't see any more questions so lino any last words from you.

A

uh We are, we are always we always welcome.

A

uh You know, suggestions and new features, and we are very uh also flexible and open uh if anybody have any issues, uh we're gonna be more than happy to address that right away, and I count on everybody to to collaborate for us to to improve adoption of hyperledger fabric and again, thank you for our time. I hope we deliver value to you today and giotti and hyperledger foundation. I really appreciate this opportunity.

B

Yeah. Thank you. Thank you. Thanks. Everyone for joining.

D

C

Bye, bye thanks bye.