jshen28

## build-swtpm.sh
sudo apt-get install git g++ gcc automake autoconf libtool make gcc libc-dev libssl-dev pkg-config libtasn1-6-dev libjson-glib-dev expect gawk socat libseccomp-dev -y
cd ~
git clone https://github.com/stefanberger/swtpm.git
git clone https://github.com/stefanberger/libtpms.git
cd libtpms
./autogen.sh --prefix=/usr --with-tpm2 --with-openssl
make
sudo make install
cd ../swtpm
./autogen.sh --prefix=/usr

## git pull allow unrelated history.md

      
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                jshen28
                / git pull allow unrelated history.md
            
            
              Created
              October 27, 2018 11:55
            
          
    # from a directory with some stuff 
# but still want to push to an existing repository
git init
git add -A
git commit -m "some rants"

git remote add origin <origin url>
git pull orgin <branch> --allow-unrelated-histories

  
## netlink_demo.c
#include <stdio.h>
#include <unistd.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <memory.h>
#include <linux/types.h>
#include <linux/netlink.h>
#include <linux/rtnetlink.h>

struct nl_req_s {

## Simple vsock setup for QEMU.md

      
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                jshen28
                / Simple vsock setup for QEMU.md
            
            
              Created
              September 30, 2021 14:08
                — forked from mcastelino/Simple vsock setup for QEMU.md
            
              
                using qemu with vsock
              
          
    Simple vsock setup for QEMU

Configuration

Host Kernel:     rawhide  4.13.0-0.rc6.git4.2.fc28.x86_64 (on Fedora 24)
QEMU is mainline built from sources:        QEMU emulator version 2.10.50 (v2.10.0-105-g223cd0e)
Guest: clear-17460-kvm.img (which has vsock support)

  
## ovs-cheat.md

      
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                jshen28
                / ovs-cheat.md
            
            
              Last active
              April 21, 2021 08:14
                — forked from djoreilly/ovs-cheat.md
            
              
                OVS cheat sheet
              
          
    CTL

ovs-vsctl list open_vswitch
ovs-vsctl list interface
ovs-vsctl --columns=ofport,name list Interface
ovs-vsctl --columns=ofport,name --format=table list Interface
ovs-vsctl --format=table --columns=name,mac_in_use find Interface name=br-dpdk1
ovs-vsctl get interface vhub656c3cb-23 name/ofport

  
## running-openstack-nova-with-pypy.md

      
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                / running-openstack-nova-with-pypy.md
            
            
              Created
              April 14, 2021 14:40
                — forked from vishvananda/running-openstack-nova-with-pypy.md
            
              
                Running OpenStack Nova with PyPy
              
          
    Overview

For those that are unfamiliar with the project, PyPy is an implementation of the Python language that features a JIT Compiler. I have noticed a huge performance benefit in some personal projects by switching to PyPy. I have always been curious how it would perform on a large and complex project like OpenStack, but my early experiments ran into massive roadblocks around broken dependencies.
It has been six months since I last looked, so I figured it was time to try it again. Support has come a long way and, now that lxml is working, we are close enough to get a Proof-of-Concept running.  Read on for instructions on running nova with PyPy.
Preparation

Start out with a base ubuntu 12.04 (precise) install and run devstack. I won't go through the details of getting devstack running here, because there are already instructions on the devstack site.

  
## move mount permission denied.md

      
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                / move mount permission denied.md
            
            
              Created
              March 31, 2021 09:14
            
          
    6ee73781-6d8c-40f7-b953-ecf30f4a3309] Failed to build and run instance: libvirt.libvirtError: internal error: Process exited prior to exec: libvirt:  error : Unable to move /dev/termination-log mount to /run/libvirt/qemu/631-instance-0000c3a2.termination-log: Permission denied
2021-03-17 04:19:59.124 1255432 ERROR nova.compute.manager [instance: 6ee73781-6d8c-40f7-b953-ecf30f4a3309] Traceback (most recent call last):
2021-03-17 04:19:59.124 1255432 ERROR nova.compute.manager [instance: 6ee73781-6d8c-40f7-b953-ecf30f4a3309]   File "/var/lib/openstack/lib/python3.8/site-packages/nova/compute/manager.py", line 2394, in _build_and_run_instance
2021-03-17 04:19:59.124 1255432 ERROR nova.compute.manager [instance: 6ee73781-6d8c-40f7-b953-ecf30f4a3309]     self.driver.spawn(context, instance, image_meta,
2021-03-17 04:19:59.124 1255432 ERROR nova.compute.manager [instance: 6ee73781-6d8c-40f7-b953-ecf30f4a3309]   File "/var/lib/openstack/lib/python3.8/site-packages/nova/virt/libvirt/driver.py", line 3753, in s


## route_dump.c
/*
   iflist.c : retrieve network interface information thru netlink sockets

   (c) Jean Lorchat @ Internet Initiative Japan - Innovation Institute

   v1.0 : initial version - Feb 19th 2010

   This file was obtained at the following address :
   http://www.iijlab.net/~jean/iflist.c

## route_dump.c
/*
   iflist.c : retrieve network interface information thru netlink sockets

   (c) Jean Lorchat @ Internet Initiative Japan - Innovation Institute

   v1.0 : initial version - Feb 19th 2010

   This file was obtained at the following address :
   http://www.iijlab.net/~jean/iflist.c

## customize_iso_preseed
ISO_FILE      ?= ubuntu.iso
VM_NAME       ?= vm06
PATH_TO_HDD   ?= $(PWD)/$(VM_NAME).qcow2

.PHONY: mkiso

run: $(VM_NAME).qcow2
	/usr/bin/qemu-system-x86_64 \
    -m 1024 \
    -vnc 0.0.0.0:41 \
	sudo apt-get install git g++ gcc automake autoconf libtool make gcc libc-dev libssl-dev pkg-config libtasn1-6-dev libjson-glib-dev expect gawk socat libseccomp-dev -y
	cd ~
	git clone https://github.com/stefanberger/swtpm.git
	git clone https://github.com/stefanberger/libtpms.git
	cd libtpms
	./autogen.sh --prefix=/usr --with-tpm2 --with-openssl
	make
	sudo make install
	cd ../swtpm
	./autogen.sh --prefix=/usr
	#include <stdio.h>
	#include <unistd.h>
	#include <sys/types.h>
	#include <sys/socket.h>
	#include <memory.h>
	#include <linux/types.h>
	#include <linux/netlink.h>
	#include <linux/rtnetlink.h>

	struct nl_req_s {
	/*
	iflist.c : retrieve network interface information thru netlink sockets

	(c) Jean Lorchat @ Internet Initiative Japan - Innovation Institute

	v1.0 : initial version - Feb 19th 2010

	This file was obtained at the following address :
	http://www.iijlab.net/~jean/iflist.c
	ISO_FILE ?= ubuntu.iso
	VM_NAME ?= vm06
	PATH_TO_HDD ?= $(PWD)/$(VM_NAME).qcow2

	.PHONY: mkiso

	run: $(VM_NAME).qcow2
	/usr/bin/qemu-system-x86_64 \
	-m 1024 \
	-vnc 0.0.0.0:41 \