Can packer use a vsphere template and extend it - packer

I have several images I build in packer for vsphere. You can think of these as base images, like a base linux, and base windows that have minimal required software installed. I then want to have additional images which will be built from the base template and have additional services installed for example
windows_template: base image with some mandatory software
serviceA_template: extends base template but with additional services for service A
serviceB_template: extends base template but with additional services for service B
Is that possible in packer? that I can use a template name as the source instead of having to build again from ISo and install all the minimal software dependencies.

You can use the vsphere-clone builder for this. After your base build produces a VSphere template, you can then use that output artifact as the source for the child Packer template build:
source "vsphere-clone" "this" {
communicator = "none"
host = "esxi-1.vsphere65.test"
insecure_connection = "true"
password = "jetbrains"
template = "alpine" # output base build template specified here
username = "root"
vcenter_server = "vcenter.vsphere65.test"
vm_name = "alpine-clone-${local.timestamp}"
}

Related

Can the ConfigurationAPI in Liferay DXP be used for Plugin sdk portlet?

I have followed given 2 tutorials to use COnfigurationAPI in a Liferay dxp plugins SDK portlet built using Ant/Ivy.
COnfiguration API 1
COnfiguration API 2.
Below is the configuration class used:
package com.preferences.interfaces;
import com.liferay.portal.configuration.metatype.annotations.ExtendedObjectClassDefinition;
import aQute.bnd.annotation.metatype.Meta;
#ExtendedObjectClassDefinition(
category = "preferences",
scope = ExtendedObjectClassDefinition.Scope.GROUP
)
#Meta.OCD(
id = "com.preferences.interfaces.UnsupportedBrowserGroupServiceConfiguration",
name = "UnsupportedBrowser.group.service.configuration.name"
)
public interface UnsupportedBrowserGroupServiceConfiguration {
#Meta.AD(deflt = "", required = false)
public String displayStyle();
#Meta.AD(deflt = "0", required = false)
public long displayStyleGroupId(long defaultDisplayStyleGroupId);
}
Post following the steps,I am getting the below error:
ERROR [CM Configuration Updater (ManagedService Update: pid=[com.preferences.interfaces.UnsupportedBrowserGroupServiceConfiguration])][org_apache_felix_configadmin:97] [org.osgi.service.cm.ManagedService, id=7082, bundle=297//com.liferay.portal.configuration.settings-2.0.15.jar?lpkgPath=C:\dev\Liferay\osgi\marketplace\Liferay Foundation.lpkg]: Unexpected problem updating configuration com.preferences.interfaces.UnsupportedBrowserGroupServiceConfiguration {org.osgi.service.cm.ConfigurationAdmin}={service.vendor=Apache Software Foundation, service.pid=org.apache.felix.cm.ConfigurationAdmin, service.description=Configuration Admin Service Specification 1.2 Implementation, service.id=56, service.bundleid=643, service.scope=bundle}
Caused by: java.lang.IllegalArgumentException: wrong number of arguments
So,does this process need a osgi module as mandatory or can we do it using plusings sdk portlet built using ant as well?
Without disecting the error message Caused by: java.lang.IllegalArgumentException: wrong number of arguments:
The way you build your plugin (Ant, Maven, Gradle, manually) doesn't make a difference, as long as you build a plugin that will be understood by the runtime. aQute.bnd.annotation.metatype.Meta points firmly into the OSGi world, and makes it almost certain that you'll need an OSGi module. You can build this with Ant, of course. Even in Ant you can embed tools like bnd, or you can write the proper Manifest.mf to include in your module manually (just kidding - you don't want to do it manually, but it would work).
Recommendation: Instead of moving everything over: Try to reproduce this with a minimal example in gradle or better Liferay Workspace (which is gradle based), just to get all the automatic wiring in. Check if it makes a difference and compare the generated output from your Ant build process with the workspace output. Pay specific attention to the Manifest.
In order to build the proper Manifest, you want to use bnd - if the Manifest turns out to be your issue: Find a way to embrace bnd - if that's by saying goodby to Ant, or by tweaking your build script remains your decision.

How to use localization in Razor Class Library in Asp.Net Core

I have tried to create the Razor Class Library with Asp.Net Core in following project structure:
I have used in my web application these settings for localization in Startup class:
services.AddMvc().SetCompatibilityVersion(CompatibilityVersion.Version_2_1)
.AddViewLocalization(
LanguageViewLocationExpanderFormat.Suffix,
opts => { opts.ResourcesPath = "Resources"; })
.AddDataAnnotationsLocalization();
services.Configure<RequestLocalizationOptions>(
opts =>
{
var supportedCultures = new[]
{
new CultureInfo("en-US"),
new CultureInfo("en")
};
opts.DefaultRequestCulture = new RequestCulture("en");
opts.SupportedCultures = supportedCultures;
opts.SupportedUICultures = supportedCultures;
});
....
var options = app.ApplicationServices.GetService<IOptions<RequestLocalizationOptions>>();
app.UseRequestLocalization(options.Value);
In Index.cshtml:
#using Microsoft.AspNetCore.Mvc.Localization
#inject IViewLocalizer Localizer
<h1>#Localizer["Title"]</h1>
Unfortunately, the result is only string "Title". I can't load these resx files from Razor Class Library.
How can I use the localization in Razor Class Library like above?
UPDATE: This is very similiar use case - https://github.com/aspnet/Localization/issues/328 - that provides some example.
I haven't tried the accepted answer and based on the comments, it seems the OP didn't get it to work. I implemented a pattern similar to the View/Page locator pattern that MVC/Razor Pages uses namely, that resources can be provided in a RCL or separate assembly and use ViewLocalizer and it'll just find the matching resource string from the highest precedence resource. You can read my implementation and see if it might work for you.
https://terryaney.wordpress.com/2021/01/04/migrating-to-net-core-overridable-localization-in-razor-class-libraries/
You appear to have forgotten to configure localization correctly using AddLocalization
Using details provided from documentation
Reference Globalization and localization in ASP.NET Core
Configure localization
Localization is configured in the ConfigureServices method:
services.AddLocalization(options => options.ResourcesPath = "Resources"); //<<< This is required
services
.AddMvc()
.SetCompatibilityVersion(CompatibilityVersion.Version_2_1)
.AddViewLocalization(LanguageViewLocationExpanderFormat.Suffix)
.AddDataAnnotationsLocalization();
AddLocalization Adds the localization services to the services container. The code above also sets the resources path to "Resources".
AddViewLocalization Adds support for localized view files.
AddDataAnnotationsLocalization Adds support for localized DataAnnotations validation messages through IStringLocalizer abstractions.
Localization middleware
The current culture on a request is set in the localization Middleware. The localization middleware is enabled in the Configure method. The localization middleware must be configured before any middleware which might check the request culture (for example, app.UseMvcWithDefaultRoute()).
var supportedCultures = new[] {
new CultureInfo("en-US"),
new CultureInfo("en")
};
app.UseRequestLocalization(new RequestLocalizationOptions{
DefaultRequestCulture = new RequestCulture("en"),
// Formatting numbers, dates, etc.
SupportedCultures = supportedCultures,
// UI strings that we have localized.
SupportedUICultures = supportedCultures;
});
//...other middleware
app.UseMvcWithDefaultRoute();
The path to the resource file shown in the example image follows the path naming convention given that
you are using the ResourcesPath option which was set to "Resources". This should allow the view to find the resource file in the relative path to the "Resources" folder.
An alternative is to not use the ResourcesPath option, and place the .resx file in the same folder as the view, following the naming convention of course.
Base on additional details provided it was indicated that the UI project would be packaged as a nuget package.
Then have the resources files packaged into the nuget package and have them unpacked to the resources folder of the target project when when installed.
The resources need to be in the site root to be available to the view, so you then need to reference all the files in your .nuspec:
<?xml version="1.0"?>
<package>
<metadata>...
</metadata>
<files>
<!-- Add all resource files -->
<file src="Resources\**\*.resx" target="content\Resources" />
</files>
</package>
Reference Creating NuGet packages

Cakephp 3: React/zmq library namespace

I am working on on the basic tutorial on using ratchet mentioned here http://socketo.me/docs/push.
I have created a test setup for the tutorial that works flawlessly. However, when I am trying to integrate the setup with CakePHP 3 I am running into problems. The ratchet and ZMQ servers are independent just the way mentioned in the tutorial. Only the following piece of code needs to move into CakePHP 3 controllers:
$context = new ZMQContext();
$socket = $context->getSocket(ZMQ::SOCKET_PUSH, 'my pusher');
$socket->connect("tcp://localhost:5555");
$socket->send(json_encode($entryData));
This code basically submits new data to ZMQ queue for forwarding to ratchet. If I place the same 4 lines in a plain PHP file outside CakePHP 3 codebase it works. When I place the same four lines inside APP\Controller\SamplesController it says the class APP\Controller\ZMQContext not found.
CakePHP 3 docs mention that vendor libraries installed via composer will be automatically available through autoloader. I have installed React\ZMQ library via following command:
php composer require react/zmq
I have tried accessing the class via following namespaces but none of them have worked:
ZMQContext ( Class 'App\Controller\ZMQContext' not found )
\ZMQContext ( Class 'App\Controller\ZMQ' not found )
React\ZMQ\ZMQContext ( Class 'App\Controller\React\ZMQ\ZMQContext' not found )
\React\ZMQ\ZMQContext ( Class 'React\ZMQ\ZMQContext' not found )
Probably missing out on some namespace concept in PHP but my understanding is that if ZMQContext is available in a normal PHP file through global namespace, then it should also be available within CakePHP 3 via \ZMQContext.
I have following questions:
How can I push data to ZMQ Queue within my CakePHP 3 APP ?
APP::path() & APP::classname() seems to work only for classes within the CakePHP 3 application. How to check path for a particular vendor library class ?
How to autoload vendor library classes correctly ? (I do not wish to require/require_once them as it will needed to be done for each controller that wants to publish data via ratchet)
Is the assumption about accessing global namespace via \CLASSNAME wrong ?
My second attempt at accessing vendor library class at \ZMQContext resolved to App\Controller\ZMQ. How is that possible when it should have attempted within root namespace ?
ZMQContext is not part of react/zmq library so does it mean it part of default php bindings for libzmq ?
This was a simple typo problem:
$context = new \ZMQContext();
$socket = $context->getSocket(\ZMQ::SOCKET_PUSH, 'my pusher');
$socket->connect("tcp://localhost:5555");
$socket->send(json_encode($entryData));
The second namespace specification in second line was missing.

Configuration management in builds without source controlled config transformations

Given a configuration named "Data:ConnectionString" in appsettings.json file (ASP.NET Core application), how do I override this in the build? By overriding it can either be that there is a step which changes the value in appsettings.json before compilation during build, or that I override the parameter when using "dotnet test", or something else.
More info:
I have a ASP.NET Core application with standard configuration in appsettings.json. I do not want any connection string or sensitive data checked in the source control.
I am building my application using Visual Studio Team Service (cloud TFS). There is a step where tests are executed, and I want these tests to run against a remote service for which I do not want to check in the credentials.
There are a number of extensions available on http://marketplace.visualstudio.com that will help you without any complicated ness.
https://marketplace.visualstudio.com/items?itemName=YodLabs.VariableTasks
I like the Variable Tasks Pack that comes with:
Set Variable Set a variable value and optionally apply a transformation to it.
Set Variables with Credential Sets the username/password from an existing service endpoint
Set Variable from JSON Extracts a value from JSON using JSONPath
Set Variable from XML Extracts a value from XML using XPath
Update Build Number Allows you to change a build number
Increment Version Increments a semver version number
Super easy... You can also just search for "json" or "variable" to find other options...
Most popular ways:
Use app secrets
Use scripts section in your project.json. You have 4 events -
precompile, postcompile, prepublish, postpublish
You can set the an environmental variable ASPNETCORE_ENVIRONMENT in the build to something like "Test". Create an appsettings.json file named appsettings.Test.Json. Then when you are setting up your configuration in Startup.cs do something like...
var builder = new ConfigurationBuilder()
.SetBasePath(env.ContentRootPath)
.AddJsonFile("appsettings.json", optional: true, reloadOnChange: true)
.AddJsonFile($"appsettings.{env.EnvironmentName}.json", optional: true);
When the environmental variable is set to TEST, you new appsettings file will be loaded and can set the connection string to whatever you want.

Monodroid: Where should I put configuration settings?

From Miguel de Icaza:
We use a library profile that is better suited for mobile devices, so we removed features that are not necessary (like the entire System.Configuration stack, just like Silverlight does).
After years of .NET development, I'm accustomed to storing configuration settings in web.config and app.config files.
When using Mono for Android, where should I put my configuration settings?
If it matters, I'd like to store different configuration settings for different build configurations as well.
I would probably recommend using shared preferences and compilation symbols to manage different configurations. Below is an example of how you can use a preferences file to add or change keys based on the compilation symbols. Additionally, you could create a separate preferences file that is only available for a particular configuration. Because these keys are not available on all configurations, make sure to always perform checks for them before using.
var prefs = this.GetSharedPreferences("Config File Name", FileCreationMode.Private);
var editor = prefs.Edit();
#if MonoRelease
editor.PutString("MyKey", "My Release Value");
editor.PutString("ReleaseKey", "My Release Value");
#else
editor.PutString("MyKey", "My Debug Value");
editor.PutString("DebugKey", "My Debug Value");
#endif
editor.PutString("CommonKey", "Common Value");
editor.Commit();
We have had exactly the same problem in our current project.
My first impulse was to put the configuration in a sqlite key-value table but then my internal customer reminded me the main reason for a configuration file - it should support simple editing.
So instead we created an XML file and put it there:
string documentsPath = Environment.GetFolderPath(Environment.SpecialFolder.Personal);
And access it using these properties:
public string this[string key]
{
get
{
var document = XDocument.Load(ConfigurationFilePath);
var values = from n in document.Root.Elements()
where n.Name == key
select n.Value;
if(values.Any())
{
return values.First();
}
return null;
}
set
{
var document = XDocument.Load(ConfigurationFilePath);
var values = from n in document.Root.Elements()
where n.Name == key
select n;
if(values.Any())
{
values.First().Value = value;
}
else
{
document.Root.Add(new XElement(key, value));
}
document.Save(ConfigurationFilePath);
}
}
}
via a singleton class we call Configuration so for .NET developers it is very similar to using the app.config files. Might not be the most efficient solution but it gets the job done.
there's a Xamarin centric AppSetting reader: https://www.nuget.org/packages/PCLAppConfig
pretty useful for continuous delivery (so a deployment server such as octopus allows to alter your config file for each environment with values stored on the cd server)
there's a Xamarin centric AppSetting reader available at https://www.nuget.org/packages/PCLAppConfig
it is pretty useful for continuous delivery;
use as per below:
1) Add the nuget package reference to your pcl and platforms projects.
2) Add a app.config file on your PCL project, then as a linked file on all your platform projects. For android, make sure to set the build action to 'AndroidAsset', for UWP set the build action to 'Content'. Add you settings keys/values: <add key="config.text" value="hello from app.settings!" />
3) Initialize the ConfigurationManager.AppSettings on each of your platform project, just after the 'Xamarin.Forms.Forms.Init' statement, that's on AppDelegate in iOS, MainActivity.cs in Android, App in UWP/Windows 8.1/WP 8.1:
ConfigurationManager.Initialise(PCLAppConfig.FileSystemStream.PortableStream.Current);
3) Read your settings : ConfigurationManager.AppSettings["config.text"];
ITNOA
Maybe PCLAppConfig is help you to create and read from app.config in Xamarin.Forms PCL Project or other Xamarin projects.
For different configuration in different build mode such as release and debug you can use Configuration Transform on app.config.