vbatts

#!/usr/bin/env oo-ruby
=begin
Author: Vincent Batts <vbatts@redhat.com>
Data:  Fri Feb 28 15:42:09 EST 2014
Description: Migration script for https://trello.com/c/q1ro2vDB/408-3-use-proxy-pass-for-virtual-hosts-plugin-instead-of-mod-rewrite
             NOTE: this only applies to setups that are using the vhost plugin, namely OSE
=end

require "find"
require "json"

vbatts

== For a static file-system (not an interactive registry daemon)

-- Overview For use-cases of serving docker images from a registry, that is to be read-only (pull or run, no push). It is necessary to make certain aspects of the index/registry API optional. This way the HTTP GET's made for pulling an image and layers, are provided by a basic file system server and no added logic.

Presently, there are a few custom headers that are expected of the registry, by the docker tool. If the headers are not present, then the pull of the image fails. The functionality that is using these headers ought to have some sane defaults if they are not present.

-- Example Using the attached server (though any http server like httpd or lighttpd would work too), to serve a directory. The directory fetched from http://people.gnome.org/~alexl/v1.tar.gz, looks like:

vbatts

package main

import (
	"compress/gzip"
	"flag"
	"fmt"
	"github.com/dotcloud/docker/image"
	"github.com/dotcloud/docker/utils"
	"io"
	"io/ioutil"

vbatts

Overview

there has been a 1024 byte discrepancy of the tar archive when pushed from a docker daemon to a docker-registry

Usage

$ sh repro.sh

or if you are testing a local build of docker

vbatts

FROM fedora:latest

RUN yum install -y attr golang git docker-registry

# this way we'll set something in a non-standard tar pax header for this image
RUN touch file && setfattr -n user.vbatts -v test ./file && getfattr -d ./file

# 
RUN curl -kL https://github.com/dotcloud/docker/archive/v0.9.1.tar.gz | tar -zx
RUN mkdir -p /gopath/src/github.com/dotcloud && \

vbatts

FROM fedora:20

RUN yum erase -y vim-minimal &&\
        yum groupinstall -y "development tools" && \
        yum install -y --setopt=override_install_langs=en --setopt=tsflags=nodocs \
        yum-utils \
        git \
        golang \
        mercurial \
        bzr \

vbatts

vbatts@jellyroll ~ (master *) $ sudo /home/vbatts/src/docker/docker/bundles/0.10.0-dev/dynbinary/docker-0.10.0-dev -d -g /home/docker -D 2>&1 | grep SUCH
[debug] volumes.go:182 SUCH VOLUMES: map[]
[debug] volumes.go:183 SUCH BIND: map["/repro.sh":{"/home/vbatts/sandbox/reproduction/20140501-rootVolPath/repro.sh" "/repro.sh" "ro"}]
[debug] volumes.go:215 SUCH SRC DIRECTORY: %!q(bool=false)
[debug] volumes.go:288 SUCH CREATE: "/home/docker/devicemapper/mnt/51f485a015ef5882875e5c9801d6a2b85a51ea590577fbcf5d28f7263a81942d/rootfs/repro.sh", %!q(bool=false)
[debug] volumes.go:182 SUCH VOLUMES: map[]
[debug] volumes.go:183 SUCH BIND: map[]
[debug] volumes.go:215 SUCH SRC DIRECTORY: %!q(bool=true)
[debug] volumes.go:288 SUCH CREATE: "/home/docker/devicemapper/mnt/96cced7026d92dd57b7067e2a49400f118b1e4fbbc93a868a1792f63e9024633/rootfs/repro.sh", %!q(bool=true)
[debug] volumes.go:251 SUCH FART: "/home/docker/devicemapper/mnt/96cced7026d92dd57b7067e2a49400f118b1e4fbbc93a868a1792f63e9024633/rootfs/repro.sh"

vbatts

FROM fedora:rawhide  
RUN yum install -y mock && yum clean all
RUN curl -o go1.2.1.linux-386.tar.gz https://go.googlecode.com/files/go1.2.1.linux-386.tar.gz
RUN useradd -m -u 1000 -G wheel,mock build
RUN sed -ri 's/^(%wheel.*)(ALL)$/\1NOPASSWD: \2/' /etc/sudoers
USER build

vbatts

package main

/*
#include <linux/capability.h>

int has_cap_syslog() {
  int ret = 0;
#ifdef CAP_SYSLOG
  ret = 1;
#endif

vbatts

FROM fedora:latest
RUN yum install -y attr
RUN touch file
RUN setcap 'cap_setgid,cap_setuid+ep' ./file && getcap ./file