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#
# (c) Jan Gehring <jan.gehring@gmail.com>
#
package Rex::Virtualization::Docker::create;
use v5.14.4;
use warnings;
our $VERSION = '1.16.1'; # VERSION
use Rex::Logger;
use Rex::Commands::Gather;
use Rex::Hardware;
use Rex::Commands::Fs;
use Rex::Helper::Run;
use Rex::Commands::File;
use Rex::File::Parser::Data;
use Rex::Template;
use XML::Simple;
use Data::Dumper;
sub execute {
my ( $class, $name, %opt ) = @_;
my $opts = \%opt;
$opts->{name} = $name;
unless ($opts) {
die("You have to define the create options!");
}
if ( !exists $opts->{"image"} ) {
die("You have to set a base image.");
}
if ( !exists $opts->{"command"} ) {
$opts->{command} = "";
}
my $options = _format_opts($opts);
my @out = i_run "docker run -d $options $opts->{'image'} $opts->{'command'}";
my $id = pop @out;
return $id;
}
sub _format_opts {
my ($opts) = @_;
# -name=""
# Assign the specified name to the container. If no name is specific docker will generate a random name
if ( !exists $opts->{"name"} ) {
die("You have to give a name.");
}
# -m=""
# Memory limit (format: <number><optional unit>, where unit = b, k, m or g)
if ( !exists $opts->{"memory"} ) {
$opts->{"memory"} = '512m';
}
else {
$opts->{memory} = $opts->{memory};
}
# -c=0
# CPU shares (relative weight)
if ( !exists $opts->{"cpus"} ) {
$opts->{"cpus"} = 0;
}
my $str = "--name $opts->{'name'} -m $opts->{'memory'} -c $opts->{'cpus'} ";
# -e=[]
# Set environment variables
if ( exists $opts->{"env"} ) {
$str .= '-e ' . join( '-e ', @{ $opts->{'env'} } ) . ' ';
}
# -h=""
# Container host name
if ( exists $opts->{"hostname"} ) {
$str .= "-h $opts->{'hostname'} ";
}
# -privileged=false
# Give extended privileges to this container
if ( exists $opts->{"privileged"} ) {
$str .= "--privileged $opts->{'privileged'} ";
}
# -p=[]
# Map a network port to the container
if ( exists $opts->{"forward_port"} ) {
$str .= '-p ' . join( '-p ', @{ $opts->{'forward_port'} } ) . ' ';
}
# -expose=[]
# Expose a port from the container without publishing it to your host
if ( exists $opts->{"expose_port"} ) {
$str .= "--expose $opts->{'expose_port'} ";
}
# -dns=[]
# Set custom dns servers for the container
if ( exists $opts->{"dns"} ) {
$str .= '--dns ' . join( '-dns ', @{ $opts->{'dns'} } ) . ' ';
}
# -v=[]:
# Create a bind mount with: [host-dir]:[container-dir]:[rw|ro].
# If "container-dir" is missing, then docker creates a new volume.
if ( exists $opts->{"share_folder"} ) {
$str .= '-v ' . join( '-v ', @{ $opts->{'share_folder'} } ) . ' ';
}
# -volumes-from=""
# Mount all volumes from the given container(s)
if ( exists $opts->{"volumes-from"} ) {
$str .= "--volumes-from \"$opts->{'volumes-from'}\" ";
}
# -lxc-conf=[]
# Add custom lxc options -lxc-conf="lxc.cgroup.cpuset.cpus = 0,1"
if ( exists $opts->{"lxc-conf"} ) {
$str .= "--lxc-conf \"$opts->{'lxc-conf'}\" ";
}
# -link=""
# Add link to another container (name:alias)
if ( exists $opts->{"link"} ) {
$str .= '--link ' . join( '-link ', @{ $opts->{'link'} } ) . ' ';
}
return $str;
}
1;
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