Setting scrutinizer-ci with gcloud - gcloud

Using gcloud in scrutinizer-ci,
I want to automatically deploy to gcp.
There is no information anywhere, but who has something done?

# Create an environment variable for the correct distribution
export CLOUD_SDK_REPO="cloud-sdk-$(lsb_release -c -s)"
# Add the Cloud SDK distribution URI as a package source
echo "deb http://packages.cloud.google.com/apt $CLOUD_SDK_REPO main" | sudo tee -a /etc/apt/sources.list.d/google-cloud-sdk.list
# Import the Google Cloud Platform public key
curl https://packages.cloud.google.com/apt/doc/apt-key.gpg | sudo apt-key add -
# Update the package list and install the Cloud SDK
sudo apt-get -y update && sudo apt-get -y install google-cloud-sdk
#/home/scrutinizer/build/php.info
#vi /home/scrutinizer/build/credential_key.json
gcloud auth activate-service-account --key-file=/home/scrutinizer/build/credential_key.json
thx, I resoled this shell

Related

Is it possible to install postgresql 11 on Ubuntu 14.04?

I'm running on a Ubuntu 14,04 ('trusty') with no possibility to upgrade (a complex website-management platform is dependant upon it), but I'd like to install the latest version of postgresql in parallel... are there any compatibility issues?
Yes, I tried it just now, I followed the guide here: https://gist.github.com/alistairewj/8aaea0261fe4015333ddf8bed5fe91f8
# add postgresql to apt repository
sudo add-apt-repository 'deb http://apt.postgresql.org/pub/repos/apt/ trusty-pgdg main'
# get the signing key and update
wget --quiet -O - https://www.postgresql.org/media/keys/ACCC4CF8.asc | sudo apt-key add -
sudo apt-get update
# install postgresql
sudo apt-get install postgresql-11
# ensure that the server is started by switching to the postgres user
sudo su - postgres
# I didn't do this part since the database was started during install
# and I checked via `psql`
# /usr/lib/postgresql/11/bin/pg_ctl -D /var/lib/postgresql/11/main -l logfile start

Cannot install postgres on Ubuntu (E: Unable to locate package postgresql)

So I'm having this problem where for some reason I can't install any package on my ubuntu system.
I'm currently on Ubuntu 16.10.
terminal install logs
Update:
I've done entered those commands and got this.
after update and apt-cache
What should I do now?
sudo apt-get install wget ca-certificates
wget --quiet -O - https://www.postgresql.org/media/keys/ACCC4CF8.asc | sudo apt-key add -
sudo sh -c 'echo "deb http://apt.postgresql.org/pub/repos/apt/ `lsb_release -cs`-pgdg main" >> /etc/apt/sources.list.d/pgdg.list'
sudo apt-get update
sudo apt-get install postgresql postgresql-contrib
After installing the PostgreSQL database server, by default, it creates a user ‘postgres’ with role ‘postgres’. Also creates a system account with the same name ‘postgres’. So to connect to Postgres server, log in to your system as user postgres and connect database.
sudo su - postgres
psql
First do
sudo apt-get update
You should get no errors upon updating. In case you do, then you might have issues with your firewall, or something blocking you from updating repositories. Check the output carefully.
And then search for the correct (exact!) package name using this command:
apt-cache search postgresql
As a last resort you could add external 3rd Party repository as described in this answer. Just remember to use your distribution name instead of "xenial".
It should work.
$ sudo apt-get install postgresql postgresql-client
If you are getting (E: Unable to locate package postgresql-12) while migrating following step may helps you:
sudo apt-get -y install bash-completion wget
wget --quiet -O - https://www.postgresql.org/media/keys/ACCC4CF8.asc |
sudo apt-key add -
sudo apt-get update
sudo apt-get -y install postgresql-12 postgresql-client-12
sudo systemctl status postgresql
ref:install postgres12 in ubuntu-18.04
Following Commands worked for me: sudo apt-get install wget ca-certificates
wget --quiet -O - https://www.postgresql.org/media/keys/ACCC4CF8.asc | sudo apt-key add -
sudo sh -c 'echo "deb http://apt.postgresql.org/pub/repos/apt/ lsb_release -cs-pgdg main" >> /etc/apt/sources.list.d/pgdg.list'
sudo apt-get update
sudo apt install postgresql-11 libpq-dev

How to upgrade docker-compose to latest version

I have installed docker-compose using the command
sudo apt install docker-compose
It installed docker-compose version 1.8.0 and build unknown
I need the latest version of docker-compose or at least a version of 1.9.0
Can anyone please let me know what approach I should take to upgrade it or uninstall and re-install the latest version.
I have checked the docker website and can see that they are recommending this to install the latest version'
sudo curl -L https://github.com/docker/compose/releases/download/1.21.0/docker-compose-$(uname -s)-$(uname -m) -o /usr/local/bin/docker-compose
But before that, I have to uninstall the present version, which can be done using the command
sudo rm /usr/local/bin/docker-compose
but this can be used only when the installation was done using curl. I am not sure if the installation was done by curl as I have used
sudo apt install docker-compose
Please let me know what should I do now to uninstall and re-install the docker-compose.
First, remove the old version:
If installed via apt-get
sudo apt-get remove docker-compose
If installed via curl
sudo rm /usr/local/bin/docker-compose
If installed via pip
pip uninstall docker-compose
Then find the newest version on the release page at GitHub or by curling the API and extracting the version from the response using grep or jq (thanks to dragon788, frbl, and Saber Hayati for these improvements):
# curl + grep
VERSION=$(curl --silent https://api.github.com/repos/docker/compose/releases/latest | grep -Po '"tag_name": "\K.*\d')
# curl + jq
VERSION=$(curl --silent https://api.github.com/repos/docker/compose/releases/latest | jq .name -r)
Finally, download to your favorite $PATH-accessible location and set permissions:
DESTINATION=/usr/local/bin/docker-compose
sudo curl -L https://github.com/docker/compose/releases/download/${VERSION}/docker-compose-$(uname -s)-$(uname -m) -o $DESTINATION
sudo chmod 755 $DESTINATION
The easiest way to have a permanent and sustainable solution for the Docker Compose installation and the way to upgrade it, is to just use the package manager pip with:
pip install docker-compose
I was searching for a good solution for the ugly "how to upgrade to the latest version number"-problem, which appeared after you´ve read the official docs - and just found it occasionally - just have a look at the docker-compose pip package - it should reflect (mostly) the current number of the latest released Docker Compose version.
A package manager is always the best solution if it comes to managing software installations! So you just abstract from handling the versions on your own.
If you tried sudo apt-get remove docker-compose and get E: Unable to locate package docker-compose, try this method :
This command must return a result, in order to check it is installed here :
ls -l /usr/local/bin/docker-compose
Remove the old version :
sudo rm -rf docker-compose
Download the last version (check official repo : docker/compose/releases) :
sudo curl -L "https://github.com/docker/compose/releases/download/1.24.0/docker-compose-$(uname -s)-$(uname -m)" -o /usr/local/bin/docker-compose
(replace 1.24.0 if needed)
Finally, apply executable permissions to the binary:
sudo chmod +x /usr/local/bin/docker-compose
Check version :
docker-compose -v
If the above methods aren't working for you, then refer to this answer: https://stackoverflow.com/a/40554985
curl -L "https://github.com/docker/compose/releases/download/1.22.0/docker-compose-$(uname -s)-$(uname -m)" > ./docker-compose
sudo mv ./docker-compose /usr/bin/docker-compose
sudo chmod +x /usr/bin/docker-compose
Based on #eric-johnson's answer, I'm currently using this in a script:
#!/bin/bash
compose_version=$(curl https://api.github.com/repos/docker/compose/releases/latest | jq .name -r)
output='/usr/local/bin/docker-compose'
curl -L https://github.com/docker/compose/releases/download/$compose_version/docker-compose-$(uname -s)-$(uname -m) -o $output
chmod +x $output
echo $(docker-compose --version)
it grabs the latest version from the GitHub api.
Here is another oneliner to install the latest version of docker-compose using curl and sed.
curl -L "https://github.com/docker/compose/releases/download/`curl -fsSLI -o /dev/null -w %{url_effective} https://github.com/docker/compose/releases/latest | sed 's#.*tag/##g' && echo`/docker-compose-$(uname -s)-$(uname -m)" -o /usr/local/bin/docker-compose && chmod +x /usr/local/bin/docker-compose
Do it in three steps. (showing for apt-get installs)
Uninstall the last one. e.g. for apt-get installs
sudo apt-get remove docker-compose
Install the new one (https://docs.docker.com/compose/install/)
sudo curl -L "https://github.com/docker/compose/releases/download/1.29.0/docker-compose-$(uname -s)-$(uname -m)" -o /usr/local/bin/docker-compose
and then
sudo chmod +x /usr/local/bin/docker-compose
Check your version
docker-compose --version
Simple Solution to update docker-compose
This will remove the existing binary of docker-compose and install a new version.
sudo cd /usr/local/bin && sudo rm -rf docker-compose
sudo sudo curl -SL https://github.com/docker/compose/releases/download/v2.2.3/docker-compose-linux-x86_64 -o /usr/local/bin/docker-compose
sudo chmod +x docker-compose
for the latest version visit https://github.com/docker/compose/releases and replace the latest one with v2.1.1
I was trying to install docker-compose on "Ubuntu 16.04.5 LTS" but after installing it like this:
sudo curl -L "https://github.com/docker/compose/releases/download/1.26.0/docker-compose-$(uname -s)-$(uname -m)" -o /usr/local/bin/docker-compose
I was getting:
-bash: /usr/local/bin/docker-compose: Permission denied
and while I was using it with sudo I was getting:
sudo: docker-compose: command not found
So here's the steps that I took and solved my problem:
sudo curl -L "https://github.com/docker/compose/releases/download/1.26.0/docker-compose-$(uname -s)-$(uname -m)" -o /usr/local/bin/docker-compose
sudo ln -sf /usr/local/bin/docker-compose /usr/bin/docker-compose
sudo chmod +x /usr/bin/docker-compose
use this from command line: sudo curl -L "https://github.com/docker/compose/releases/download/1.22.0/docker-compose-$(uname -s)-$(uname -m)" -o /usr/local/bin/docker-compose
Write down the latest release version
Apply executable permissions to the binary:
sudo chmod +x /usr/local/bin/docker-compose
Then test version:
$ docker-compose --version
If you installed with pip, to upgrade you can just use:
pip install --upgrade docker-compose
or as Mariyo states with pip3 explicitly:
pip3 install --upgrade docker-compose
Using latest flag in url will redirect you to the latest release of the repo
As OS name is lower case in github's filename, you should convert uname -s to lower case using sed -e 's/\(.*\)/\L\1/'.
sudo curl -L "https://github.com/docker/compose/releases/latest/download/docker-compose-$(uname -s|sed -e 's/\(.*\)/\L\1/')-$(uname -m)" -o /usr/local/bin/docker-compose && sudo chmod +x /usr/local/bin/docker-compose
On mac (also working on ubuntu):
sudo curl -L "https://github.com/docker/compose/releases/download/<release-version>/docker-compose-$(uname -s)-$(uname -m)" -o /usr/local/bin/docker-compose
sudo chmod +x /usr/local/bin/docker-compose
NOTE: write the as here:
https://github.com/docker/compose/releases
Use,
$ sudo curl -L "https://github.com/docker/compose/releases/download/1.24.0/docker-compose-$(uname -s)-$(uname -m)" -o /usr/local/bin/docker-compose && sudo chmod +x /usr/local/bin/docker-compose
$ docker-compose -v
Docker Engine and Docker Compose Plugin
Since Microsoft took over Docker they worked on porting docker-compose to their Docker Engine CLI plugins. For future support and updates I would recommend using docker compose plugin (Notice the missing dash) which can be install via the docker-compose-plugin package. The following instructions assume that you are using Ubuntu as Distro or any Distro thats using apt as package manager.
Installation Preparations
Update your mirrors:
sudo apt-get update
Make sure the following packages are installed:
sudo apt-get install \
ca-certificates \
curl \
gnupg \
lsb-release
After that add the official Docker GPG Key:
sudo mkdir -p /etc/apt/keyrings
curl -fsSL https://download.docker.com/linux/ubuntu/gpg | sudo gpg --dearmor -o /etc/apt/keyrings/docker.gpg
And finally add the the stable repository:
echo \
"deb [arch=$(dpkg --print-architecture) signed-by=/etc/apt/keyrings/docker.gpg] https://download.docker.com/linux/ubuntu \
$(lsb_release -cs) stable" | sudo tee /etc/apt/sources.list.d/docker.list > /dev/null
Also make sure Docker Engine and other needed dependencies are installed:
sudo apt-get install docker-ce docker-ce-cli containerd.io
Installation of docker compose plugin
sudo apt-get install docker-compose-plugin
Any future updates of the plugin are easily applied via apt.
For further reference take a look at the official installation instructions of Docker Engine and Docker Compose.
After a lot of looking at ways to perform this I ended up using jq, and hopefully I can expand it to handle other repos beyond Docker-Compose without too much work.
# If you have jq installed this will automatically find the latest release binary for your architecture and download it
curl --silent "https://api.github.com/repos/docker/compose/releases/latest" | jq --arg PLATFORM_ARCH "$(echo `uname -s`-`uname -m`)" -r '.assets[] | select(.name | endswith($PLATFORM_ARCH)).browser_download_url' | xargs sudo curl -L -o /usr/local/bin/docker-compose --url
On ubuntu desktop 18.04.2, I have the 'local' removed from the path when using the curl command to install the package and it works for me. See above answer by Kshitij.
In my case, using Windows + WSL2 with Ubuntu 20.04, was necessary only this:
sudo apt update
and then:
sudo apt upgrade
Centos/RHEL
Follow my answer below if you're using Centos7 with an x86-64 architecture. This answer is also available in my github.
Stop Your Docker Containers
I noticed other answers did not talk about stopping your docker containers/images instances before attempting to upgrade gracefully. Assumptions are inevitable but can be costly. Onward we go!
Options to update Docker-Compose
There are 2 options to upgrade docker-compose if you first downloaded and installed docker-compose using the Curl command.
Using Curl, jq package, and Github's direct URL to the docker-compose repository.
Using Curl, Sed, and Github's direct URL to the docker-compose repository.
Note: some of the commands below require "sudo" privileges.
Demonstration
The script below was saved to a file called "update_docker_compose.sh". You need to give this file executable permissions.
Like so:
chmod +x update_docker_compose.sh
"docker_docker_compose.sh" file content:
#!/bin/bash
# author: fullarray (stackoverflow user)
# Contribution shared on: stackoverflow.com
# Contribution also available on: github.com
# date: 06112022
# Stop current docker container running
docker stop containerID
# Remove current docker network running
docker rm containerID
# Remove image of target application(s)
docker image rm imageID
# Delete either dangling (unatagged images) docker containers or images or network
docker system prune -f
# This step depends on the jq package.
# Uncomment jq package installation command below if using Centos7 x86-64.
# sudo yum install jq
# Declare variable to get latest version of docker-compose from github repository
compose_version=$(curl https://api.github.com/repos/docker/compose/releases/latest | jq .name -r)
# Declare variable to target installation directory
target_install_dir='/usr/local/bin/docker-compose'
# Get OS and build (assumes Linux Centos7 and x86_64)
get_local_os_build=$(uname -s)-$(uname -m)
# Execute curl command to carry download and installation operation
curl -L https://github.com/docker/compose/releases/download/$compose_version/docker-compose-$get_local_os_build -o $target_install_dir
# Use chmod to modify permissions to target installation directory (to make it executable)
chmod +x $target_install_dir
# Print docker-compose version to terminal to verify upgrade
$(docker-compose --version)
Edit the script with variables specific to your environment
The script above has a few variables you need to edit with values specific to your docker environment. For instance, you need to replace container ID and image ID with the values that the following commands output.
docker ps
and
docker images output
Once you finalize creating the file (including the edits). Switch to the directory that contains the file. For example, if you created the file in /home/username/script/update_docker_compose.sh
cd /home/username/script
Last, run the script by executing the following
./update_docker_compose.sh
Option 2
Create a script file name "update_docker_compose.sh"
Edit the file and add the following content:
#!/bin/bash
# author: fullarray (stackoverflow user)
# Contribution shared on: stackoverflow.com
# Contribution also available on: github.com
# date: 06112022
# Stop current docker container running
docker stop containerID
# Remove current docker network running
docker rm containerID
# Remove image of target application(s)
docker image rm imageID
# Delete either dangling (unatagged images) docker containers or images or network
docker system prune -f
# Declare variable to target installation directory
target_install_dir='/usr/local/bin/docker-compose'
# Get OS and build (assumes Linux Centos7 and x86_64)
get_local_os_build=$(uname -s)-$(uname -m)
# Execute curl and sed command to carry out download and installation operation
# compose_latest_version=$(curl -L "https://github.com/docker/compose/releases/download/`curl -fsSLI -o /dev/null -w %{url_effective} https://github.com/docker/compose/releases/latest | sed 's#.*tag/##g' && echo`/docker-compose-$get_local_os_build") -o $target_install_dir
# Use chmod to modify permissions to target installation directory (to make it executable)
chmod +x $target_install_dir
# Print docker-compose version to terminal to verify upgrade
$(docker-compose --version)
Edit the script with variables specific to your environment
The script above also has a few variables you need to edit with values specific to your docker environment. For instance, you need to replace container ID and image ID with the values that the following commands output.
docker ps
and
docker images output
Once you finalize creating the file (including the edits). Switch to the directory that contains the file. For example, if you created the file in /home/username/script/update_docker_compose.sh
cd /home/username/script
Last, run the script by executing the following
./update_docker_compose.sh
This is the method of installing docker compose version 2.12.x
Update debian package manager
# apt-get update
# apt-get install docker-compose-plugin
Then install the plugin manualy
DOCKER_CONFIG=${DOCKER_CONFIG:-$HOME/.docker}
mkdir -p $DOCKER_CONFIG/cli-plugins
curl -SL https://github.com/docker/compose/releases/download/v2.12.2/docker-compose-linux-x86_64 -o $DOCKER_CONFIG/cli-plugins/docker-compose
Give permisson of execution of file
chmod +x $DOCKER_CONFIG/cli-plugins/docker-compose
Last test the installation
docker compose version
// Docker Composer Version v2.12.2
If you have homebrew you can also install via brew
$ brew install docker-compose
This is a good way to install on a Mac OS system
Most of these solutions are outdated or make you install old version.
To install the latest
sudo apt install jq
DOCKER_COMPOSE_VERSION=$(curl --silent https://api.github.com/repos/docker/compose/releases/latest | jq .name -r)
sudo curl -L "https://github.com/docker/compose/releases/download/$DOCKER_COMPOSE_VERSION/docker-compose-$(uname -s)-$(uname -m)" -o /usr/local/bin/docker-compose
sudo chmod +x /usr/local/bin/docker-compose
Well, my case was pretty weird. I am using wsl2, and Docker Desktop (Windows 11). I stop getting this error after rename the folder "docker" to "config-dev-server" and update de Dockerfile like this this:
COPY ./docker/apache/apache2.conf /etc/apache2/apache2.conf
to
COPY ./config-dev-server/apache/apache2.conf /etc/apache2/apache2.conf
With a newer Docker Desktop for Mac 3.3.0, you don't need to install Docker Compose as a seperate package. Docker Compose comes as a first class citizen installed with Docker by default. Check out the below CLI:
docker compose version
Docker Compose version 2.0.0-beta.1%

PowerShell Core in Debian Docker Container Error

I'm new to Docker and am trying to create a Docker image with Raspbian base and PowerShell Core installed.
EDIT: Updated Dockerfile to include libicu52 package, which resolved the main error: lack of libpsl-native or dependencies not available. Changed CMD parameters and now have a different error.
Here is my Dockerfile:
# Download the latest RPi3 Debian image
FROM resin/raspberrypi3-debian:latest
# Update the image and install prerequisites
RUN apt-get update && apt-get install -y \
wget \
libicu52 \
libunwind8 \
&& apt-get clean
# Grab the latest tar.gz
RUN wget https://github.com/PowerShell/PowerShell/releases/download/v6.0.0-rc.2/powershell-6.0.0-rc.2-linux-arm32.tar.gz
# Make folder to put PowerShell
RUN mkdir ~/powershell
# Unpack the tar.gz file
RUN tar -xvf ./powershell-6.0.0-rc.2-linux-arm32.tar.gz -C ~/powershell
# Run PowerShell
CMD pwsh -v
New error:
hostname: you must be root to change the host name
/bin/sh: 1: pwsh: not found
How do I resolve these errors?
Thanks in advance!
Instead of downloading from source and extracting it in your container, I'd recommend using the official apt installer packages for your Dockerfile from Microsoft's official Debian repository as described at:
https://learn.microsoft.com/en-us/powershell/scripting/setup/installing-powershell-core-on-macos-and-linux?view=powershell-6#debian-9
So transforming that to Dockerfile format:
# Install powershell related system components
RUN apt-get install -y \
gnupg curl apt-transport-https \
&& apt-get clean
# Import the public repository GPG keys
RUN curl https://packages.microsoft.com/keys/microsoft.asc | sudo apt-key add -
# Register the Microsoft's Debian repository
RUN sh -c 'echo "deb [arch=amd64] https://packages.microsoft.com/repos/microsoft-debian-stretch-prod stretch main" > /etc/apt/sources.list.d/microsoft.list'
# Install PowerShell
RUN apt-get update \
&& apt-get install -y \
powershell
# Start PowerShell
CMD pwsh
Alternatively you can also try to start from one of the original Microsoft docker Linux images, but of course then you need to solve then the raspberry installation for yourself:
https://hub.docker.com/r/microsoft/powershell/tags/

Not all pre-reqs install correctly for Hyperledger Composer

I've been following the Hyperledger Composer tutorial. I managed to install Ubuntu 16.04 on Hyper-V on my Windows 10 Enterprise. I then started on the following pre-req installation instructions:
https://hyperledger.github.io/composer/installing/installing-prereqs.html
I ran the prereqs-ubuntu.sh script. It ran fine with no errors. I examined the logs and saw that it had successfully installed npm 5.6.0, node 8.9.4, docker 17.12.x, docker composer 1.13.x, and Python 2.7.12.
However, when I run run $ sudo npm --version
it tells me that the npm command is not found
Same with $ sudo node --version
Not found...?!
Why would that be when the log clearly shows that npm and node where successfuly installed?!
Well, what I did and managed through:
--> install nodejs and npm:
sudo snap install node --classic --channel=8
so you get the latest node8.
--> then to solve "sudo" problem with node specify the npm prefix:
npm config set prefix ~/.node_modules
add the following to .bash_profile
export PATH=$HOME/.node_modules/bin:$PATH
Now the packages will install into your user directory and no permissions will be harmend.
--> install nvm (to get exactly node 8.9 version on the next step):
curl -o- https://raw.githubusercontent.com/creationix/nvm/v0.33.11/install.sh | bash
or
wget -qO- https://raw.githubusercontent.com/creationix/nvm/v0.33.11/install.sh | bash
Verify:
node -v nvm
which should output 'nvm' if the installation was successful.
--> get and set node 8.9 version:
nvm install v8.9.0
nvm use 8.9.0
--> reset PATHs:
echo export PATH="$HOME/npm/bin:$PATH" >> ~/.bashrc
npm config set prefix ~/npm
echo "export NODE_PATH=$NODE_PATH:/home/$USER/npm/lib/node_modules" >> ~/.bashrc && source ~/.bashrc
--> at this stage the docker previous setup shall be destroyed:
docker kill $(docker ps -q)
docker rm $(docker ps -aq)
docker rmi $(docker images dev-* -q)
--> Installing the rest of prereqs:
sudo apt-add-repository -y ppa:git-core/ppa
sudo apt-get update
# install git
sudo apt-get install -y git
# Ensure that CA certificates are installed
sudo apt-get -y install apt-transport-https ca-certificates
# Add Docker repository key to APT keychain
curl -fsSL https://download.docker.com/linux/ubuntu/gpg | sudo apt-key add -
# Update package lists
sudo apt-get update
# Verifies APT is pulling from the correct Repository
sudo apt-cache policy docker-ce
# Install Docker
echo "# Installing Docker"
sudo apt-get -y install docker-ce
# Add user account to the docker group
sudo usermod -aG docker $(whoami)
# Install docker compose
echo "# Installing Docker-Compose"
sudo curl -L "https://github.com/docker/compose/releases/download/1.13.0/docker-compose-$(uname -s)-$(uname -m)" \
-o /usr/local/bin/docker-compose
sudo chmod +x /usr/local/bin/docker-compose
# Install unzip, required to install hyperledger fabric.
sudo apt-get -y install unzip
--> now you can install Fabric dev. env. (assuming the rest of prereq components stand available):
npm install -g composer-cli
etc.
I think you need to log out and close the shell. And then restart with the new session, as the shell stores your session.
Also, after installation, the use of sudo is not recommended as mentioned on IBM hyperledger website.