eldondev

eldondev

Lightning Talk: inetd in Go for Docker
Reincarnating a 1980s tech with today's tools.

Eldon
docker.inetd@eldondev.com

* Disclaimer:
This is a lightning talk. 
- It has not been reviewed. 
- There will probably be lies, damn lies, and a demo. 

eldondev

FROM busybox
COPY response.sh .
CMD nc -lp 8000 -e sh response.sh

eldondev

package main

import (
	"fmt"
	"github.com/fsouza/go-dockerclient"
	"io"
	"net"
	"os"
	"os/signal"
	"strconv"

eldondev

echo CPU_FLAGS_X86=\"`grep -of <(sed -n -e '/^#/d' -e 's/^/ /' -e's/-.*//p' /usr/portage/profiles/desc/cpu_flags_x86.desc) /proc/cpuinfo |sort |uniq |xargs  echo`\"

eldondev

FROM stage3
RUN mkdir /build
ADD openssh-6.7p1.tar.gz /build
COPY patch /build/patch
WORKDIR /build/openssh-6.7p1
RUN patch -p1 -l <../patch
RUN ./configure
RUN make 
RUN make install
COPY go /sbin/

eldondev

Throughput may seem like a funny thing to measure on a unix pipe. For many, the PV utility may seem like a toy for bored sysadmins to watch their database dumps get backed up. But the truth is, that unix pipes remain one of my most frequently used tools over the course of the day. Why?
* On *nix systems, they are almost always there.
* They are frequently the first tool that experienced people turn to when diagnosing an issue with a system. For example:
 * Web service misbehaving? Try to curl it.
 * Error in a log file? Grep it!
 * Need to fix a config file? Sed it!
 * Need to find out how big some set of data is, an average, etc? wc + bc are your friends.
* The parts they contain are 
 * many (I will give you $0x1 if you can name all the coreutils) and 
 * composable (we can send sed to grep to sed to awk to ...)

eldondev

# coding: utf-8

# In[23]:

get_ipython().magic('pylab')
import boto.ec2
from pandas import DataFrame
pre_data = {}
for region in boto.ec2.regions():

eldondev

I was interested in writing a little something that I could put in from of wget -m that would ensure that wget would not re-fetch files, even if those files had disappeared from the local host

eldondev