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Verify Hyperledger Composer Prerequisites on Ubuntu
How to verify Hyplerledger Composer Prerequisites on Ubuntu? You can use the following commands to verify Hyplerledger Composer Prerequisites on Ubuntu: 1. Verify Docker Engine: $ docker --version Docker version 18.09.2, build 6247962 $ ps -e | grep dockerd 17939 ? 00:39:58 dockerd 2. Verify Docker ...
2021-05-04, 799🔥, 0💬

CTO Language Primitive Data Types
What are CTO Language Primitive Data Types? CTO Language Primitive Data Types built-in system data types that you can use them to build new data types Currently, there are 6 primitive data types supported: String - Represets a string of Unicode characters. Double - Represets a double precision (64-b...
2021-06-19, 791🔥, 0💬

View "console.log()" Output in Playground
How to view "console.log()" Output in Hyperledger Composer Playground? If you use "console.log()" to print out debug information in your transaction process functions, you can follow this tutorial to see the "console.log()" in Hyperledger Composer Playground. 1. Add the following CTO modeling file t...
2021-06-05, 787🔥, 0💬

Basic Sample Business Network - SampleEvent
How to view SampleEvent emitted from Basic Sample Business Network? You can follow this tutorial to view SampleEvent emitted from Basic Sample Business Network. Since SampleEvent is generated by the SampleTransaction process, it is recorded as a child object to the SampleTransaction record. 1. Open ...
2020-12-15, 787🔥, 0💬

Install Hyperledger Fabric on UBuntu
How to install Hyplerledger Fabric on Ubuntu? You can follow this tutorial to install Hyplerledger Fabric on Ubuntu. 1. Download the Hyplerledger Fabric Dev Environment package: $ mkdir fabric-dev-servers $ cd fabric-dev-servers $ curl -O https://raw.githubusercontent. com/hyperledger/composer-tools...
2021-04-04, 784🔥, 0💬

Peer Containers Not Joined to Channel
Can I stop Peer Containers That Are Not Joined to Channel? Yes. You can stop Peer Containers That Are Not Joined to Channel. For example, you have 1 channel, "mychannel", and 4 peers. You know that only 2 of them are joined to the channel. You can stop the other peer containers. 1. List all peer con...
2020-07-07, 782🔥, 0💬

Versions of Hyplerledger Composer Environment
How many versions do I have with my Hyplerledger Composer development environment? The installation package fabric-dev-servers.tar.gz actually provides 3 versions of Hyplerledger Composer development environment. You can them in the "fabric-scripts" sub-directory: $ cd fabric-dev-servers $ ls -l fab...
2020-07-22, 781🔥, 0💬

"microsoft/windowsservercore" - Windows Base Image
What is the Windows Base Image, "microsoft/windowsservercore"? If you want to build any Docker images for Windows platform, you should take a look at the Windows base image first. 1. Search for Windows related images: C:\fyicenter&gt; docker search windows microsoft/windowsservercore The officia...
2022-12-15, 776🔥, 0💬

"shell" Format vs. "exec" Format
What is the differences between "shell" format and "exec" format when writing instructions in Dockerfile for Windows images? There are several differences between "shell" format and "exec" format when writing instructions in Dockerfile for Windows images. 1. The "shell" format is simple to use. But ...
2021-11-30, 768🔥, 0💬

Building Docker Images for Windows
Where to find tutorials on Building Docker Images for Windows? Here is a list of tutorials to answer many frequently asked questions compiled by FYIcenter.com team on Building Docker Images for Windows. "microsoft/windowsservercore" - Windows Base Image "microsoft/windowsservercore:l atestnot found"...
2023-01-30, 767🔥, 0💬

Build a Dummy Windows Image
How to do a dummy image from the "microsoft/dotnet-samples" Docker image? If you want play with the "microsoft/dotnet-samples" Docker image, you should build a dummy Docker image using it as the base. 1. Create a Dockerfile to define the new image: C:\fyicenter&gt; type DummyImage FROM microsoft...
2022-02-02, 767🔥, 0💬

ERROR(PKG-005) - Mimetype Has Extra Field
How to fix the "ERROR(PKG-005) - The mimetype file has an extra field of length 28 ..." error? When you validate a EPUB 2.0 package with EpubCheck, you may see the following error: C:\fyicenter&gt; java -jar epubcheck.jar Error-Mimetype-Not-First-2.0.e pubValidating using EPUB version 2.0.1 rule...
2022-11-04, 755🔥, 0💬

Revise Business Network Source Code
How to manage revisions of my Business Network? You can follow this tutorial to learn how to manage revisions of my Business Network properly. 1. Do not delete NBA files. They contains copies of source files of your business network. You should keep them as backups. $ cd tutorial-network $ ls -l *.b...
2020-12-26, 746🔥, 0💬

Docker Data Storage - Volume Mounts
How to create a new Volume mount to a Docker container? Volume mounts are stored in a part of the host filesystem which is managed by Docker (/var/lib/docker/volumes/ on Linux). Non-Docker processes should not modify this part of the filesystem. Volumes are the best way to persist data in Docker. Be...
2021-08-15, 702🔥, 0💬

Docker Data Storage - Multiple Mounts
How to create multiple mounts to a Docker container? Some times you may need to create multiple mounts to a new Docker container. This can be done by using "--mount" options as shown in this tutorial. 1. Run a new Docker container with 2 bind mounts: fyicenter# docker run \ --mount type=bind,source=...
2021-08-15, 697🔥, 0💬

Upgrade/Downgrade Python in Conda on nvidia/cuda Docker
How to Upgrade or Downgrade Python in Conda on nvidia/cuda Docker? If you need to run a specific version of Python, you can Upgrade or Downgrade Python Conda on nvidia/cuda Docker as shown in this tutorial. 1. Attach a terminal to the running docker. fyicenter# docker exec -it my_cuda /bin/bash (bas...
2023-02-21, 695🔥, 1💬

Install Docker CE on CentOS
Where to find tutorials on Docker CE (Community Edition) on CentOS systems? Here is a list of tutorials to answer many frequently asked questions compiled by FYIcenter.com team as Introduction to Docker CE (Community Edition) on CentOS systems. Install Docker CE on CentOS with YUM Install Docker CE ...
2023-03-17, 685🔥, 0💬

Managing Data Storage in Docker
Where to find tutorials on Managing Data Storage in Docker? Here is a list of tutorials to answer many frequently asked questions compiled by FYIcenter.com team on Managing Data Storage in Docker. Types of Docker Data Storage Docker Data Storage - "tmpfs" Mounts Docker Data Storage - Volume Mounts D...
2023-02-19, 680🔥, 0💬

Hello-3.2.epub - EPUB 3.2 Simple Demonstration
How to build a simple EPUB file to demonstrate some EPUB 3.2 features? You can follow this tutorial to build a simple EPUB file to demonstrate some EPUB 3.2 features Create 5 required files and place them according to the following structure: ├── mimetype ├── META-INF │   └── container.xml ├─...
2022-02-09, 676🔥, 0💬

Change Data with PyMySQL Package
How to make data changes to MySQL database with PyMySQL package? Making data changes to MySQL database with PyMySQL package requires to run INSERT, UPDATE or DELETE SQL statements with an established connection. By default, changes are not committed until you call the con.commit() method explicitly....
2021-09-09, 676🔥, 0💬

NVIDIA GPU Server Docker Image
Where to find tutorials on NVIDIA GPU Server Docker Image? Here is a list of tutorials to answer many frequently asked questions compiled by FYIcenter.com team on NVIDIA GPU Server Docker Image. What Is NVIDIA CUDA Docker Image "docker pull nvidia/cuda" - Download Docker Image Install Miniconda3 on ...
2023-03-07, 665🔥, 0💬

Install Miniconda3 on nvidia/cuda Docker
How to install Miniconda3 on nvidia/cuda Docker? If you want to run Miniconda3 to manage different versions of Python applications, you can follow this tutorial to install it on the nvidia/cuda Docker. 1. Start nvidia/cuda Docker and let it run for a long time, so we can attach a terminal to it at a...
2023-03-07, 665🔥, 0💬

Build My Java Image with "openjdk"
How to build My Java Docker Image with "openjdk" If you want build your own Java Docker image with "openjdk", you can following this tutorial. 1. Create a Java program, Hello.java: C:\fyicenter&gt; type Hello.java class Hello { public static void main(String[] a) { System.out.println("Hello worl...
2021-11-30, 665🔥, 0💬

Python Modules for MySQL Database
Where to find tutorials on Python modules for MySQL database? Here is a list of tutorials to answer many frequently asked questions compiled by FYIcenter.com team on Python modules for MySQL database. MySQL Database Server Connection Information "mysql.connector" Module by mysql.com Change Data with...
2021-11-13, 664🔥, 0💬

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