ilivessevili

#!/bin/bash
#
# Generates client and server certificates used to enable HTTPS
# remote authentication to a Docker daemon.
#
#     See http://docs.docker.com/articles/https/
#
# To start the Docker Daemon:
#
#     sudo docker -d                 \

ilivessevili

Error: Execution of '/usr/bin/apt-get -q -y -o DPkg::Options::=--force-confold install glance-api' returned 100: Reading package lists...
Building dependency tree...
Reading state information...
You might want to run 'apt-get -f install' to correct these:
The following packages have unmet dependencies:
 openstack-dashboard-cloudbase-theme : Depends: openstack-dashboard (= 1:2015.1.0-0ubuntu1~cloud0) but 1:2015.1.1-0ubuntu1~cloud2 is to be installed
E: Unmet dependencies. Try 'apt-get -f install' with no packages (or specify a solution).

Error: /Stage[main]/Glance::Api/Package[glance-api]/ensure: change from purged to present failed: Execution of '/usr/bin/apt-get -q -y -o DPkg::Options::=--force-confold install glance-api' returned 100: Reading package lists...
Building dependency tree...

ilivessevili

sudo su
echo 'UseDNS no' >> /etc/ssh/sshd_config
service ssh restart

ilivessevili

import os

1GB = 1024*1024*1024 # 1GB 
with open('large_file', 'wb') as fout:
    fout.write(os.urandom(1GB)) 

ilivessevili

##using fallocate
fallocate -l 100G large_file.img

##using xfs
xfs_mkfile 10240m 10Gigfile

## using dd
#kilobytes
dd if=/dev/zero of=filename bs=1 count=0 seek=200K

ilivessevili

#!/bin/bash
sync
echo 1 > /proc/sys/vm/drop_caches
echo 2 > /proc/sys/vm/drop_caches
echo 3 > /proc/sys/vm/drop_caches

ilivessevili

ip route add default via my-gateway ip route del default

ip route del 0/0

while ip route del default; do :; done

ilivessevili

Add a new harddisk
/dev/sdb
Create partition
Sudo fdisk /dev/sdb
Command (m for help): m
Command action
   a   toggle a bootable flag
   b   edit bsd disklabel
   c   toggle the dos compatibility flag
   d   delete a partition

ilivessevili

ovs-dpctl show -s
ovs-ofctl show, dump-ports, dump-flows, add-flow, mod-flows, del-flows
ovsdb-tools show-log -m
ovs-vsctl
  show - show the ovsdb
  bridge -  add-br, list-br, del-br, br-exists.
  port   -  list-ports, add-port, del-port, add-bond, port-to-br.
  interface -  list-ifaces, iface-to-br
  ovs-vsctl list/set/get/add/remove/clear/destroy table record column [value], tables like "bridge", "controller","interface","mirror","netflow","open_vswitch","port","qos","queue","ssl","sflow".

ilivessevili

==rabbitmq-plugins enable rabbitmq_management==

root@openstack:~# rabbitmq-plugins enable rabbitmq_management
The following plugins have been enabled:
  mochiweb
  webmachine
  rabbitmq_web_dispatch
  amqp_client
  rabbitmq_management_agent
  rabbitmq_management