Error while installing tripleo Client Library - openstack

When i try to download tripleo Client using command
yum install -y python-tripleoclient ceph-ansible
On Centos 7.5 , I am getting error curl#60 - "Peer's Certificate has expired."

This has nothing to do with tripleo client itself. You are using some temporary yum repositories which were recycled.
My favorite hacking approach is to use pip to install it:
pip install python-tripleoclient
This is also documented on https://docs.openstack.org/python-tripleoclient/latest/installation.html

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EPEL & Codeready-builder AWS EC2 RHEL8

I am running an EC2 instance with a RHEL8 AMI.
I am looking to install R on the instance and I believe I need the EPEL package and to enable the codeready builder through the following two commands
sudo dnf install -y https://dl.fedoraproject.org/pub/epel/epel-release-latest-8.noarch.rpm
sudo dnf config-manager --set-enabled rhui-codeready-builder-for-rhel-8-rhui-rpms
more info at (https://aws.amazon.com/premiumsupport/knowledge-center/ec2-enable-epel/)
I can download epel (first line) fine but when I run the second line I get the following:
This system is not registered to Red Hat Subscription Management. You can use subscription-manager to register.
Error: No matching repo to modify: rhui-codeready-builder-for-rhel-8-rhui-rpms.
Also when I try to run the following, I get the following:
This system has no repositories available through subscriptions.
and for completeness, this is the error when i try to install R
$sudo yum install -y R
This system is not registered to Red Hat Subscription Management. You can use subscription-manager to register.
Last metadata expiration check: 0:52:36 ago on Mon 04 May 2020 01:17:58 AM UTC.
Error:
Problem: package R-3.6.3-1.el8.x86_64 requires R-devel = 3.6.3-1.el8, but none of the providers can be installed
- package R-devel-3.6.3-1.el8.x86_64 requires R-core-devel = 3.6.3-1.el8, but none of the providers can be installed
- conflicting requests
- nothing provides openblas-devel needed by R-core-devel-3.6.3-1.el8.x86_64
- nothing provides texinfo-tex needed by R-core-devel-3.6.3-1.el8.x86_64
(try to add '--skip-broken' to skip uninstallable packages or '--nobest' to use not only best candidate packages)
Does anyone have any ideas or has solved this same problem?
I worked this out just after writing it...
For anyones reference, it seems AWS had their command written wrongly.
Still download epel package as shown above
sudo dnf install -y https://dl.fedoraproject.org/pub/epel/epel-release-latest-8.noarch.rpm
and instead of the following from AWS website
sudo dnf config-manager --set-enabled rhui-codeready-builder-for-rhel-8-rhui-rpms
You can use
sudo dnf config-manager --set-enabled codeready-builder-for-rhel-8-rhui-rpms
Then go ahead with sudo yum install -y R

php7.0-mcrypt can't install on ubuntu14.04

phpmyadmin show error [ The mcrypt extension is missing. Please check your PHP configuration.] on nginx. My PHP version is PHP 7.0.33-1+ubuntu14.04.1+deb.sury.org+1 (cli).
When I install php7.0-mcrypt, package doesn't exist.How to install php7.0-mcrypt?
As I understand from your message, you're using ubuntu 14.04. I recommend you upgrade your system. You could find this package in some latest reseases.
Or you could install this package manually wget http://cz.archive.ubuntu.com/ubuntu/pool/universe/p/php7.0/php7.0-mcrypt_7.0.33-0ubuntu0.16.04.4_amd64.deb && sudo dpkg -i php7.0-mcrypt_7.0.33-0ubuntu0.16.04.4_amd64.deb. But be careful, you could face some dependency hell and damage your OS.

Installing R packages on Amazon Linux EC2 instance

I am learning to use RSelenium in an EC2 instance, and I found this handy guide on doing so - https://rpubs.com/grahamplace/rselenium-ec2 - however the guide focuses on an Ubuntu instance and I am using an Amazon Linux Instance. In order to install RSelenium, the guide says I must externally (outside of R but ssh'd into my EC2 instance) install the packages xml (XML i think, case sensitive) and RCurl. The guide's relevant lines of code are:
sudo apt-get install r-cran-xml
sudo apt-get install r-cran-RCurl
however, since I'm in an Amazon Linux instance, I tried:
sudo yum install r-cran-xml
sudo yum install r-cran-RCurl
for which I get the following error:
No package r-cran-RCurl available.
Error: Nothing to do
Note: I was successful in installing R on my machine (my instance), and I am able to simply type R to launch R in the EC2 instance.
Note2: install.packages('XML') and install.packages('RCurl') with R launched do not work either.
Any help appreciated with this, thanks!
the amazon linux R package has a different name:
sudo yum install -y R
then you tried (in R) install.packages(c('XML','RCurl')), but the installation failed.
as you discovered and describe in the comment below, you needed to install an additional amazon linux package, libxml2-devel, in order to install.packages('XML') successfully.
this is what I get when I run sudo yum install -y R
No package R available.
Error: Nothing to do
R is available in Amazon Linux Extra topic "R3.4"
To use, run
sudo amazon-linux-extras install R3.4
Learn more at
https://aws.amazon.com/amazon-linux-2/faqs/#Amazon_Linux_Extras

Installing OpenCPU on Amazon Linux instance

I have a an Amazon Linux instance which uses R to write a function to do some data analysis. I now want to call this function using a REST API. It seems that OpenCPU can get the job done for me.
I have found links to install OpenCPU on Ubuntu, but is there an easy to way to install it on Amazon Linux instance.
PS: I tried
sudo yum -y install opencpu
sudo yum -y install opencpu-server
It says no such package available.
I managed to get it installed from this script https://github.com/jeroenooms/opencpu-server/blob/master/rpm/buildscript.sh.
We now have rpm packages for CentOS 6 and 7 at https://archive.opencpu.org/

Missing libz library on RedHat Install

I am setting up a Linux RedHat Server and during installation i use this command
./install.sh --target=/home/admin/Plone --build-python zeo
which shows an error:
Unable to find libz library and headers. These are required to build Python.
Please use your system package or port manager to install libz dev.
(Debian/Ubuntu zlibg-dev)
Exiting now.
Check the dependencies and install them. In your case, I guess:
yum install zlib-devel
Normally you want to install the -devel packages of the required libs. Additionally you should have installed the "Development tools" package
yum groupinstall 'Development Tools'
Search for packages with
yum search package-name
Or for binaries
yum whatprovides wantedBinary

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