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Commited36c68

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committed
kubeconfig module
1 parentf38f392 commited36c68

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4 files changed

+156
-26
lines changed

4 files changed

+156
-26
lines changed

‎cpanfile‎

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requires'Carp';
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requires'JSON';
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requires'YAML::XS';
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requires'DateTime';
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requires'Log::Any';
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requires'Module::Runtime';
@@ -8,6 +9,7 @@ requires 'Module::Find';
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requires'LWP::UserAgent';
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requires'LWP::Protocol::https';
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requires'Class::Accessor';
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requires'MIME::Base64';
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on'test'=>sub {
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requires'Test::Simple';

‎examples/load_kubeconfig.pl‎

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use strict;
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use warningsFATAL=>'all';
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use Kubernetes::Util::KubeConfig;
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use Log::Any::Adapter ('Stdout');
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use Log::Any::Adapter ('Stderr');
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use Net::SSLeay;
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$Net::SSLeay::trace = 2;
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my$kubeconfig = Kubernetes::Util::KubeConfig->load_yaml_file();
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my$api_factory =$kubeconfig->new_api_factory();
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my$corev1_api =$api_factory->get_api('CoreV1');
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my$namespaceList =$corev1_api->list_namespace();
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printf"found%d namespaces:\n",scalar @{$namespaceList->items};
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printf"=====================\n";
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foreachmy$namespace (@{$namespaceList->items}) {
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printf"%s\n",$namespace->metadata->name;
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}

‎examples/ssl_client.pl‎

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This file was deleted.

‎lib/Kubernetes/Util/KubeConfig.pm‎

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packageKubernetes::Util::KubeConfig;
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use strict;
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use warningsFATAL=>'all';
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use Carp;
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use YAML::XSqw(Load LoadFile);
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use MIME::Base64;
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use Kubernetes::ApiClient;
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use Kubernetes::ApiFactory;
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use IO::Socket::SSL;
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use Log::Anyqw($log);
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use IO::Socket::SSL::Utils;
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use base'Exporter';
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our@EXPORT =qw(
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load_yaml_file
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load_yaml
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new_api_factory
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);
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subload_yaml_file {
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my ($self,$yaml_file_path) =@_;
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if (notdefined$yaml_file_path) {
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$log->debugf('Defaulting Kube-Config file path to $HOME/.kube/config');
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$yaml_file_path =$ENV{HOME} .'/.kube/config';
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}
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die"$yaml_file_path doesn't exist!"ifnot-e$yaml_file_path;
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my$kubeconfig = LoadFile($yaml_file_path);
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bless$kubeconfig=>$self;
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$kubeconfig->validate;
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return$kubeconfig;
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}
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subload_yaml {
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my ($self,$yaml_str) =@_;
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if (notdefined$yaml_str) {
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returnundef;
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}
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my$kubeconfig = Load($yaml_str);
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bless$kubeconfig=>$self;
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$kubeconfig->validate;
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return$kubeconfig;
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}
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subvalidate {
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my ($self) =@_;
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if (notdefined$self->{apiVersion} ||$self->{apiVersion}ne'v1') {
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die"Invalid Kube-Config content: ('apiVersion' is not 'v1')";
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}
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if (notdefined$self->{kind} ||$self->{kind}ne'Config') {
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die"Invalid Kube-Config content: ('kind' is not 'v1')";
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}
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if (notdefined$self->{contexts}) {
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die"Invalid Kube-Config content: missing 'contexts' section";
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}
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if (notdefined$self->{clusters}) {
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die"Invalid Kube-Config content: missing 'clusters' section";
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}
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if (notdefined$self->{users}) {
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die"Invalid Kube-Config content: missing 'users' section";
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}
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if (notdefined$self->{'current-context'}) {
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die"Invalid Kube-Config content: missing 'current-context' section";
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}
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}
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subnew_api_factory {
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my ($self) =@_;
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my$context_name =$self->{'current-context'};
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my$cluster_name;
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my$user_name;
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foreachmy$ctx (@{$self->{contexts}}) {
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if ($context_nameeq$ctx->{name}) {
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$cluster_name =$ctx->{context}->{cluster};
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$user_name =$ctx->{context}->{user};
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}
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}
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my$current_cluster;
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foreachmy$cluster (@{$self->{clusters}}) {
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if ($cluster_nameeq$cluster->{name}) {
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$current_cluster =$cluster;
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}
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}
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my$current_user;
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foreachmy$user (@{$self->{users}}) {
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if ($user_nameeq$user->{name}) {
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$current_user =$user;
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}
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}
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my%ssl_opts;
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my$skip_tls_verify =$current_cluster->{cluster}->{'insecure-skip-tls-verify'};
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if (defined$skip_tls_verify &&$skip_tls_verify == 1) {
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$ssl_opts{verify_hostname} = 0;
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$ssl_opts{SSL_verify_mode} = IO::Socket::SSL::SSL_VERIFY_NONE;
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}else {
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# print Dumper($current_cluster);
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$ssl_opts{SSL_ca} = [PEM_string2cert(decode_base64($current_cluster->{cluster}->{'certificate-authority-data'}))];
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$ssl_opts{SSL_use_cert} = 1;
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}
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$ssl_opts{SSL_cert} = PEM_string2cert(decode_base64($current_user->{user}->{'client-certificate-data'}));
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$ssl_opts{SSL_key} = PEM_string2key(decode_base64($current_user->{user}->{'client-key-data'}));
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return Kubernetes::ApiFactory->new(
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base_url=>$current_cluster->{cluster}->{server},
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ssl_opts=> \%ssl_opts,
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);
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}
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1;

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