Apt-cacher

mastigator
(usa Ubuntu)

Enviado em 07/08/2009 - 14:24h

Olá Comunidade Viva o Linux,
Estamos implementando uma distribuição personalizada do ubuntu para uso interno em nossa instituição pública. Já estamos com a distribuição praticamente personalizada com todos pacotes necessários para atender todos os usuários, no entanto um pequeno empecilho nos impede de prosseguir que é a criação de um repositório local.
Dentre as soluções viáveis seguimos da wiki da comunidade instalando o pacote apt-cacher com suas devidas configurações, entretanto não obtivemos sucesso na realização do mesmo. Para melhor esclarecimento fizemos os seguintes passos:
* Primeiramente elegemos uma máquina como servidor, nesta instalamos o apt-cacher com suas devidas configurações;
#################################################################
# This is the config file for apt-cacher. On most Debian systems
# you can safely leave the defaults alone.
#################################################################

# cache_dir is used to set the location of the local cache. This can
# become quite large, so make sure it is somewhere with plenty of space.
cache_dir=/var/cache/apt-cacher

# The email address of the administrator is displayed in the info page
# and traffic reports.
admin_email=root@localhost

# For the daemon startup settings please edit the file /etc/default/apt-cacher.

# Daemon port setting, only useful in stand-alone mode. You need to run the
# daemon as root to use privileged ports (<1024).
daemon_port=3142

# optional settings, user and group to run the daemon as. Make sure they have
# sufficient permissions on the cache and log directories. Comment the settings
# to run apt-cacher as the native user.
group=www-data
user=www-data

# optional setting, binds the listening daemon to specified IP(s). Use IP
# ranges for more advanced configuration, see below.
# daemon_addr=localhost

# If your apt-cacher machine is directly exposed to the Internet and you are
# worried about unauthorised machines fetching packages through it, you can
# specify a list of IPv4 addresses which are allowed to use it and another
# list of IPv4 addresses which aren't.
# Localhost (127.0.0.1) is always allowed. Other addresses must be matched
# by allowed_hosts and not by denied_hosts to be permitted to use the cache.
# Setting allowed_hosts to "*" means "allow all".
# Otherwise the format is a comma-separated list containing addresses,
# optionally with masks (like 10.0.0.0/22), or ranges of addresses (two
# addresses separated by a hyphen, no masks, like '192.168.0.3-192.168.0.56').
allowed_hosts=*
denied_hosts=

# And similarly for IPv6 with allowed_hosts_6 and denied_hosts_6.
# Note that IPv4-mapped IPv6 addresses (::ffff:w.x.y.z) are truncated to
# w.x.y.z and are handled as IPv4.
allowed_hosts_6=fec0::/16
denied_hosts_6=

# This thing can be done by Apache but is much simpler here - limit access to
# Debian mirrors based on server names in the URLs
#allowed_locations=ftp.uni-kl.de,ftp.nerim.net,debian.tu-bs.de

# Apt-cacher can generate usage reports every 24 hours if you set this
# directive to 1. You can view the reports in a web browser by pointing
# to your cache machine with '/apt-cacher/report' on the end, like this:
# http://yourcache.example.com/apt-cacher/report
# Generating reports is very fast even with many thousands of logfile
# lines, so you can safely turn this on without creating much
# additional system load.
generate_reports=1

# Apt-cacher can clean up its cache directory every 24 hours if you set
# this directive to 1. Cleaning the cache can take some time to run
# (generally in the order of a few minutes) and removes all package
# files that are not mentioned in any existing 'Packages' lists. This
# has the effect of deleting packages that have been superseded by an
# updated 'Packages' list.
clean_cache=1

# Apt-cacher can be used in offline mode which just uses files already cached,
# but doesn't make any new outgoing connections by setting this to 1.
offline_mode=0

# The directory to use for apt-cacher access and error logs.
# The access log records every request in the format:
# date-time|client ip address|HIT/MISS/EXPIRED|object size|object name
# The error log is slightly more free-form, and is also used for debug
# messages if debug mode is turned on.
# Note that the old 'logfile' and 'errorfile' directives are
# deprecated: if you set them explicitly they will be honoured, but it's
# better to just get rid of them from old config files.
logdir=/var/log/apt-cacher

# apt-cacher can use different methods to decide whether package lists need to
# be updated,
# A) looking at the age of the cached files
# B) getting HTTP header from server and comparing that with cached data. This
# method is more reliable and avoids desynchronisation of data and index files
# but needs to transfer few bytes from the server every time somebody requests
# the files ("apt-get update")
# Set the following value to the maximum age (in hours) for method A or to 0
# for method B
expire_hours=0

# Apt-cacher can pass all its requests to an external http proxy like
# Squid, which could be very useful if you are using an ISP that blocks
# port 80 and requires all web traffic to go through its proxy. The
# format is 'hostname:port', eg: 'proxy.example.com:8080'.
#http_proxy=proxy.example.com:8080

# Use of an external proxy can be turned on or off with this flag.
# Value should be either 0 (off) or 1 (on).
use_proxy=0

# External http proxy sometimes need authentication to get full access. The
# format is 'username:password'.
#http_proxy_auth=proxyuser:proxypass

# Use of external proxy authentication can be turned on or off with this flag.
# Value should be either 0 (off) or 1 (on).
use_proxy_auth=0

# This sets the interface to use for the upstream connection.
# Specify an interface name, an IP address or a host name.
# If unset, the default route is used.
#interface=

# Rate limiting sets the maximum bandwidth in bytes per second to use
# for fetching packages. Syntax is fully defined in 'man wget'.
# Use 'k' or 'm' to use kilobits or megabits / second: eg, 'limit=25k'.
# Use 0 or a negative value for no rate limiting.
limit=0

# Debug mode makes apt-cacher spew a lot of extra debug junk to the
# error log (whose location is defined with the 'logdir' directive).
# Leave this off unless you need it, or your error log will get very
# big. Acceptable values are 0 or 1.
debug=0

# To enable data checksumming, install libberkeleydb-perl and set this option
# to 1. Then wait until the Packages/Sources files have been refreshed once
# (and so the database has been built up). You can also nuke them in the cache
# to trigger the update.
# checksum=1

# Print a 410 (Gone) HTTP message with the specified text when accessed via
# CGI. Useful to tell users to adapt their sources.list files when the
# apt-cacher server is being relocated (via apt-get's error messages while
# running "update")
#cgi_advise_to_use = Please use http://cacheserver:3142/ as apt-cacher access URL
#cgi_advise_to_use = Server relocated. To change sources.list, run perl -pe "s,/apt-cacher\??,:3142," -i /etc/apt/sources.list

# Server mapping - this allows to hide real server names behind virtual paths
# that appear in the access URL. This method is known from apt-proxy. This is
# also the only method to use FTP access to the target hosts. The syntax is
# simple, the part of the beginning to replace, followed by a list of mirror
# urls, all space separated. Multiple profile are separated by semicolons
# Note that you need to specify all target servers in the allowed_locations
# options if you make use of it. Also note that the paths should not overlap
# each other. FTP access method not supported yet, maybe in the future.
# path_map = debian ftp.uni-kl.de/pub/linux/debian ftp2.de.debian.org/debian ; ubuntu archive.ubuntu.com/ubuntu ; security security.debian.org/debian-security ftp2.de.debian.org/debian-security

# Permitted package files - this is a perl regular expression which matches all
# package-type files (files that are uniquely identified by their filename).
# The default is:
#package_files_regexp = (?:\.deb|\.rpm|\.dsc|\.tar\.gz|\.diff\.gz|\.udeb|index\.db-.+\.gz|\.jigdo|\.template)$

# Permitted Index files - this is the perl regular expression which matches all
# index-type files (files that are uniquely identified by their full path and
# need to be checked for freshness).
#The default is:
#index_files_regexp = (?:Index|Packages\.gz|Packages\.bz2|Release|Release\.gpg|Sources\.gz|Sources\.bz2|Contents-.+\.gz|pkglist.*\.bz2|release|release\..*|srclist.*\.bz2|Translation-.+\.bz2)$


* Em outra, no caso o cliente, configuramos o arquivo sources.list apontando como repositório a máquina servidora;

########################################################################################
GNU nano 2.0.9 Arquivo: /etc/apt/sources.list

## Major bug fix updates produced after the final release of the
## distribution.
deb http://rodi:3142/br.archive.ubuntu.com/ubuntu/ jaunty-updates main restrict$

## N.B. software from this repository is ENTIRELY UNSUPPORTED by the Ubuntu
## team. Also, please note that software in universe WILL NOT receive any
## review or updates from the Ubuntu security team.
deb http://rodi:3142/br.archive.ubuntu.com/ubuntu/ jaunty universe
deb http://rodi:3142/br.archive.ubuntu.com/ubuntu/ jaunty-updates universe

## N.B. software from this repository is ENTIRELY UNSUPPORTED by the Ubuntu
## team, and may not be under a free licence. Please satisfy yourself as to
## your rights to use the software. Also, please note that software in
## multiverse WILL NOT receive any review or updates from the Ubuntu
## security team.
deb http://rodi:3142/br.archive.ubuntu.com/ubuntu/ jaunty multiverse
############################################################################################

Ao tentar executar o apt-get update na estação do cliente o mesmo não executa devidamente travando logo no início da seguinte forma:

romulus:/home/embrapa# apt-get update
Obter:1 http://rodi jaunty Release.gpg [189B]
Obter:2 http://rodi jaunty/main Translation-pt_BR [256kB]
Obter:3 http://rodi jaunty/main Translation-pt_BR [256kB]
4% [3 Translation-pt_BR 12288/256kB 4%]

Gostaria de saber se alguém da comunidade já se esbarrou com este problema e até mesmo sabe a solução para o mesmo.
Agradeço pela atenção e aguardo uma resposta.

shivaisis
(usa Ubuntu)

Enviado em 16/08/2009 - 19:43h

Olá amigo do VOL!
olha só o grande problema do repositório local é a criação do sources.list (que parece ser o seu caso), mas primeiramente verificou se o apt-cacher está rodando? o apache também está rodando?
você pode verificar se o apache está rodando, digitando no navegador o seguinte http://localhost/apt-cacher, dessa forma você já pode verificar a configuração do apt-cacher. Se não correr tudo vem verifique se foi criado o link simbólico do apt-cacher no apache, caso não tenha, crie você mesmo. Depois verifique se os pacotes estão no cache se estiverem, crie nos clientes um soucers.list da forma como fiz abaixo, na verdade este é o que uso na minha rede, ele é para o ubuntu 8.10, mas o formato vale para qualquer um.

deb http://xx.xx.xxx.xx/apt-cacher/br.archive.ubuntu.com/ubuntu/ intrepid main restricted
deb-src http://xx.xx.xxx.xx/apt-cacher/br.archive.ubuntu.com/ubuntu/ intrepid main restricted
deb http://xx.xx.xxx.xx6/apt-cacher/br.archive.ubuntu.com/ubuntu/ intrepid-updates main restricted
deb-src http://xx.xx.xxx.xx6/apt-cacher/br.archive.ubuntu.com/ubuntu/ intrepid-updates main restricted
deb http://xx.xx.xxx.xx/apt-cacher/br.archive.ubuntu.com/ubuntu/ intrepid universe
deb-src http://xx.xx.xxx.xx/apt-cacher/br.archive.ubuntu.com/ubuntu/ intrepid universe
deb http://xx.xx.xxx.xx/apt-cacher/br.archive.ubuntu.com/ubuntu/ intrepid-updates universe
deb-src http://xx.xx.xxx.xx/apt-cacher/br.archive.ubuntu.com/ubuntu/ intrepid-updates universe
deb http://xx.xx.xxx.xx/apt-cacher/br.archive.ubuntu.com/ubuntu/ intrepid multiverse
deb-src http://xx.xx.xxx.xx/apt-cacher/br.archive.ubuntu.com/ubuntu/ intrepid multiverse
deb-src http://xx.xx.xxx.xx/apt-cacher/br.archive.ubuntu.com/ubuntu/ intrepid-updates multiverse
deb http://xx.xx.xxx.xx/apt-cacher/security.ubuntu.com/ubuntu intrepid-security main restricted
deb-src http://xx.xx.xxx.xxx/apt-cacher/security.ubuntu.com/ubuntu intrepid-security main restricted
deb http://xx.xx.xxx.xx/apt-cacher/security.ubuntu.com/ubuntu intrepid-security universe
deb-src http://xx.xx.xxx.xxx/apt-cacher/security.ubuntu.com/ubuntu intrepid-security universe
deb http://xx.xx.xxx.xx/apt-cacher/security.ubuntu.com/ubuntu intrepid-security multiverse

valeu, boa sorte!

aDe
(usa Slackware)

Enviado em 04/08/2010 - 14:33h

nao sei se ainda tem esse problema, mas só complementando o que nosso amigo lhe respondeu ate o ubuntu 9.10 vc pode utilizar no sources.list como ele citou, mas na ersão 10 c tem q ao inves de
http://xxx.xxx.xxx.xxx/apt-cacher/br.archie.... vc deve usar a porta referente ao apt-cacher que se nao foi mudado a padrão é 3142 que deve estar liberado em seu firewall portanto
http://xxx.xxx.xxx.xxx:3142/br.archive.ubuntu....