This example shows how to automate:
Terraform does not have Ansible provisioner so we'll use local-exec provisioner for Ansible.
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You cannot create image from a volume in-use. Volume status must be "available" to create image. So:
1. stop instance
2. create snapshoot
3. create new volume from snapshoot
4. convert volume and upload image to the glance
5. download image (optional)
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This post shows how to switch Horizon to HTTPS.
Before start you should have working OpenStack Horizon through HTTP.
My setup:
OS: CentOS 7.3
OpenStack: Newton
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This posts shows working kubernetes setup on CentOS 7.2.1511. Some steps are not covered in other articles on the internet.
Current Kubernetes release version 1.2.0-0.13 in the CentOS default repositories.
All your kubernetes nodes will be in 3 different subnets at the same time:
Each server has 1 Ethernet adapter. Example configuration:
This post shows process of moving MediaWiki to multiple docker containers setup with MySQL master-slave replication.
I'll skip MediaWiki setup. Focus on docker and MySQL replication.
OS: CentOS 6.5
Compile MPICH.
yum install gcc gcc-gfortran gcc-c++
mkdir /lustre/software
cd /lustre/software/
wget http://www.mpich.org/static/downloads/3.1.4/mpich-3.1.4.tar.gz
tar xzf mpich-3.1.4.tar.gz
cd mpich-3.1.4
./configure --prefix=/lustre/software/mpich3/
make
make install
Install compiler
sudo yum install gcc gcc-gfortran gcc-c++
Compile and install MPICH
wget http://www.mpich.org/static/downloads/3.1.3/mpich-3.1.3.tar.gz
tar xzf mpich-3.1.3.tar.gz
mkdir mpich_install
cd mpich-3.1.3
./configure --prefix=/home/pavlo/mpich_install/
make
make install
LVM is not supported by Rocks. But it is possible with additional manual work
OS: Rocks 6
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Contents
0. Intro
HPL is a portable implementation of HPLinpack used to provide data for the Top500 list http://www.top500.org/ .
To get best result in flops, I have tried different combinations: linear algebra libraries + MPI library + compiler.
I have used Intel CPUs and I got best results with MKL + Intel MPI + icc.
Below I'll show how to compile and run LINPACK benchmark with different libraries.
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OS: SUSE Linux Enterprise Server 10.2 (x86_64)
SF_HS version: 5.0MP3
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OS: CentOS 5.4 as XEN guests
Command line installation and configuration
Disable SELinux abd Firewall:
system-config-securitylevel-tui