SIMPLE SOLUTIONS

REX::COMMANDS::PKG(3PM) - Linux man page online | Library functions

Install/Remove Software packages.

Chapter
2018-02-01
Rex::Commands::Pkg(3pm) User Contributed Perl Documentation Rex::Commands::Pkg(3pm)

NAME

Rex::Commands::Pkg - Install/Remove Software packages

DESCRIPTION

With this module you can install packages and files.

SYNOPSIS

pkg "somepkg", ensure => "present"; pkg "somepkg", ensure => "latest", on_change => sub { say "package was updated."; service someservice => "restart"; }; pkg "somepkg", ensure => "absent";

EXPORTED FUNCTIONS

pkg($package, %options) Since: 0.45 Use this resource to install or update a package. This resource will generate reports. pkg "httpd", ensure => "latest", # ensure that the newest version is installed (auto-update) on_change => sub { say "package was installed/updated"; }; pkg "httpd", ensure => "absent"; # remove the package pkg "httpd", ensure => "present"; # ensure that some version is installed (no auto-update) pkg "httpd", ensure => "2.4.6"; # ensure that version 2.4.6 is installed pkg "apache-server", # with a custom resource name package => "httpd", ensure => "present"; install($type, $data, $options) The install function can install packages (for CentOS, OpenSuSE and Debian) and files. If you need reports, please use the pkg() resource. installing a package (This is only supported on CentOS, OpenSuSE and Debian systems.) task "prepare", "server01", sub { install package => "perl"; # or if you have to install more packages. install package => [ "perl", "ntp", "dbus", "hal", "sudo", "vim", ]; }; installing a file This is deprecated since 0.9. Please use File file instead. task "prepare", "server01", sub { install file => "/etc/passwd", { source => "/export/files/etc/passwd", owner => "root", group => "root", mode => 644, }; }; installing a file and do something if the file was changed. task "prepare", "server01", sub { install file => "/etc/httpd/apache2.conf", { source => "/export/files/etc/httpd/apache2.conf", owner => "root", group => "root", mode => 644, on_change => sub { say "File was modified!"; } }; }; installing a file from a template. task "prepare", "server01", sub { install file => "/etc/httpd/apache2.tpl", { source => "/export/files/etc/httpd/apache2.conf", owner => "root", group => "root", mode => 644, on_change => sub { say "File was modified!"; }, template => { greeting => "hello", name => "Ben", }, }; }; This function supports the following hooks: before This gets executed before everything is done. The return value of this hook overwrite the original parameters of the function-call. before_change This gets executed right before the new package is installed. This hook is only available for package installations. If you need file hooks, you have to use the file() function. after_change This gets executed right after the new package was installed. This hook is only available for package installations. If you need file hooks, you have to use the file() function. after This gets executed right before the install() function returns. remove($type, $package, $options) This function will remove the given package from a system. task "cleanup", "server01", sub { remove package => "vim"; }; update_system This function does a complete system update. For example apt-get upgrade or yum update. task "update-system", "server1", sub { update_system; }; If you want to get the packages that where updated, you can use the on_change hook. task "update-system", "server1", sub { update_system on_change => sub { my (@modified_packages) = @_; for my $pkg (@modified_packages) { say "Name: $pkg->{name}"; say "Version: $pkg->{version}"; say "Action: $pkg->{action}"; # some of updated, installed or removed } }; }; Options for update_system update_metadata Set to TRUE if the package metadata should be updated. Since 1.5 default to FALSE if possible. Before 1.5 it depends on the package manager. update_package Set to TRUE if you want to update the packages. Default is TRUE. dist_upgrade Set to TRUE if you want to run a dist-upgrade if your distribution supports it. Default is FALSE. installed_packages This function returns all installed packages and their version. task "get-installed", "server1", sub { for my $pkg (installed_packages()) { say "name : " . $pkg->{"name"}; say " version: " . $pkg->{"version"}; } }; is_installed This function tests if $package is installed. Returns 1 if true. 0 if false. task "isinstalled", "server01", sub { if( is_installed("rex") ) { say "Rex is installed"; } else { say "Rex is not installed"; } }; update_package_db This function updates the local package database. For example, on CentOS it will execute yum makecache. task "update-pkg-db", "server1", "server2", sub { update_package_db; install package => "apache2"; }; repository($action, %data) Add or remove a repository from the package manager. For Debian: If you have no source repository, or if you don't want to add it, just remove the source parameter. task "add-repo", "server1", "server2", sub { repository "add" => "repository-name", url => "http://rex.linux-files.org/debian/squeeze", key_url => "http://rex.linux-files.org/DPKG-GPG-KEY-REXIFY-REPO" distro => "squeeze", repository => "rex", source => 1; }; To specify a key from a file use key_file => '/tmp/mykeyfile'. To use a keyserver use key_server and key_id. For ALT Linux: If repository is unsigned, just remove the sign_key parameter. task "add-repo", "server1", "server2", sub { repository "add" => "altlinux-sisyphus", url => "ftp://ftp.altlinux.org/pub/distributions/ALTLinux/Sisyphus", sign_key => "alt", arch => "noarch, x86_64", repository => "classic"; }; For CentOS, Mageia and SuSE only the name and the url are needed. task "add-repo", "server1", "server2", sub { repository add => "repository-name", url => 'http://rex.linux-files.org/CentOS/$releasever/rex/$basearch/'; }; To remove a repository just delete it with its name. task "rm-repo", "server1", sub { repository remove => "repository-name"; }; You can also use one call to repository to add repositories on multiple platforms: task "add-repo", "server1", "server2", sub { repository add => myrepo => { Ubuntu => { url => "http://foo.bar/repo", distro => "precise", repository => "foo", }, Debian => { url => "http://foo.bar/repo", distro => "squeeze", repository => "foo", }, CentOS => { url => "http://foo.bar/repo", }, }; }; package_provider_for $os => $type; To set another package provider as the default, use this function. user "root"; group "db" => "db[01..10]"; package_provider_for SunOS => "blastwave"; task "prepare", group => "db", sub { install package => "vim"; }; This example will install vim on every db server. If the server is a Solaris (SunOS) it will use the blastwave Repositories.
perl v5.26.1 2018-02-01 Rex::Commands::Pkg(3pm)
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