smijar

import java.io.File;
import java.io.FileInputStream;
import java.io.StringWriter;
import java.security.KeyStore;

import javax.net.ssl.SSLContext;

import org.apache.commons.io.IOUtils;
import org.apache.http.HttpEntity;

smijar

centos 7 setup-rename NIC to eth0

http://ask.xmodulo.com/change-network-interface-name-centos7.html

- This is achieved by editing /etc/default/grub and adding "net.ifnames=0" to GRUB_CMDLINE_LINUX variable.

- Then run this command to regenerate GRUB configuration with updated kernel parameters.
$ sudo grub2-mkconfig -o /boot/grub2/grub.cfg

- cat /sys/class/net/*/address

smijar

yum update

https://docs.docker.com/engine/installation/linux/centos/

yum install -y yum-utils
yum-config-manager     --add-repo     https://download.docker.com/linux/centos/docker-ce.repo
yum makecache fast
yum install docker-ce
docker

smijar

# install epel-release on centos
yum -y install epel-release
yum -y update

# install python-pip from epel
yum -y install python-pip

# Verify using:
pip -V

smijar

docker-compose up --force-recreate

smijar

rsync -avz --exclude ./docker-volumes . <user>@<ip-address>:/user/<remote-folder>/

smijar

# To disable firewalld, run the following command as root:
systemctl disable firewalld

# To stop firewalld, run the following command as root:
systemctl stop firewalld

# start firewalld
systemctl start firewalld

# status

smijar

How I can see the used space / free space on a compute node with local storage?
vgdisplay cinder-volumes
or 
pvdisplay

smijar

# provide an alias to the host local loopback
sudo ifconfig lo0 alias 172.20.123.1

# check alias
ifconfig|more

# ping alias from within docker
docker run -it --rm busybox ping 172.20.123.1

# check that the host services are accessible from the aliased IP

smijar

export INTERNAL_DOCKER_HOST="tcp://$(docker run --rm busybox ip route show | grep ^default | cut -f3 -d ' '):2375"