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Allow environment variables for Tapeti.Cmd connection parameters

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Output connection parameters and their sources to the console
This commit is contained in:
Mark van Renswoude 2021-09-07 15:56:59 +02:00
parent 837f48ebb8
commit f16921d12d
10 changed files with 99 additions and 91 deletions
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21
Tapeti.Cmd/Program.cs
View File

@ -17,6 +17,9 @@ namespace Tapeti.Cmd
.Where(t => t.GetCustomAttribute<ExecutableVerbAttribute>() != null)
.ToArray();
using var consoleWrapper = new ConsoleWrapper();
// ReSharper disable AccessToDisposedClosure
CommandLine.Parser.Default.ParseArguments(args, verbTypes.ToArray())
.WithParsed(o =>
{
@ -28,33 +31,33 @@ namespace Tapeti.Cmd
// Should have been validated by the ExecutableVerbAttribute
Debug.Assert(executer != null, nameof(executer) + " != null");
using var consoleWrapper = new ConsoleWrapper();
executer.Execute(consoleWrapper);
exitCode = 0;
}
catch (Exception e)
{
Console.WriteLine(e.Message);
DebugConfirmClose();
using var consoleWriter = consoleWrapper.GetPermanentWriter();
consoleWriter.WriteLine(e.Message);
DebugConfirmClose(consoleWrapper);
}
})
.WithNotParsed(_ =>
{
DebugConfirmClose();
DebugConfirmClose(consoleWrapper);
});
// ReSharper restore AccessToDisposedClosure
return exitCode;
}
private static void DebugConfirmClose()
private static void DebugConfirmClose(IConsole console)
{
if (!Debugger.IsAttached)
return;
Console.WriteLine("Press any Enter key to continue...");
Console.ReadLine();
using var consoleWriter = console.GetPermanentWriter();
consoleWriter.Confirm("Press any key to continue...");
}
}
}

85
Tapeti.Cmd/Verbs/BaseConnectionOptions.cs
View File

@ -1,22 +1,93 @@
using CommandLine;
using System;
using CommandLine;
using RabbitMQ.Client;
using Tapeti.Cmd.ConsoleHelper;
namespace Tapeti.Cmd.Verbs
{
public class BaseConnectionOptions
{
[Option('h', "host", HelpText = "Hostname of the RabbitMQ server.", Default = "localhost")]
[Option('h', "host", HelpText = "(Default: localhost) Hostname of the RabbitMQ server. Can also be set using the TAPETI_HOST environment variable.")]
public string Host { get; set; }
[Option("port", HelpText = "AMQP port of the RabbitMQ server.", Default = 5672)]
public int Port { get; set; }
[Option("port", HelpText = "(Default: 5672) AMQP port of the RabbitMQ server. Can also be set using the TAPETI_PORT environment variable.")]
public int? Port { get; set; }
[Option('v', "virtualhost", HelpText = "Virtual host used for the RabbitMQ connection.", Default = "/")]
[Option('v', "virtualhost", HelpText = "(Default: /) Virtual host used for the RabbitMQ connection. Can also be set using the TAPETI_VIRTUALHOST environment variable.")]
public string VirtualHost { get; set; }
[Option('u', "username", HelpText = "Username used to connect to the RabbitMQ server.", Default = "guest")]
[Option('u', "username", HelpText = "(Default: guest) Username used to connect to the RabbitMQ server. Can also be set using the TAPETI_USERNAME environment variable.")]
public string Username { get; set; }
[Option('p', "password", HelpText = "Password used to connect to the RabbitMQ server.", Default = "guest")]
[Option('p', "password", HelpText = "(Default: guest) Password used to connect to the RabbitMQ server. Can also be set using the TAPETI_PASSWORD environment variable.")]
public string Password { get; set; }
public ConnectionFactory CreateConnectionFactory(IConsole console)
{
var consoleWriter = console.GetPermanentWriter();
consoleWriter.WriteLine("Using connection parameters:");
var factory = new ConnectionFactory
{
HostName = GetOptionOrEnvironmentValue(consoleWriter, " Host : ", Host, "TAPETI_HOST", "localhost"),
Port = GetOptionOrEnvironmentValue(consoleWriter, " Port : ", Port, "TAPETI_PORT", 5672),
VirtualHost = GetOptionOrEnvironmentValue(consoleWriter, " Virtual host : ", VirtualHost, "TAPETI_VIRTUALHOST", "/"),
UserName = GetOptionOrEnvironmentValue(consoleWriter, " Username : ", Username, "TAPETI_USERNAME", "guest"),
Password = GetOptionOrEnvironmentValue(consoleWriter, " Password : ", Password, "TAPETI_PASSWORD", "guest", true)
};
consoleWriter.WriteLine("");
return factory;
}
private static string GetOptionOrEnvironmentValue(IConsoleWriter consoleWriter, string consoleDisplayName, string optionValue, string environmentName, string defaultValue, bool hideValue = false)
{
string GetDisplayValue(string value)
{
return hideValue
? "<hidden>"
: value;
}
if (!string.IsNullOrEmpty(optionValue))
{
consoleWriter.WriteLine($"{consoleDisplayName}{GetDisplayValue(optionValue)} (from command-line)");
return optionValue;
}
var environmentValue = Environment.GetEnvironmentVariable(environmentName);
if (!string.IsNullOrEmpty(environmentValue))
{
consoleWriter.WriteLine($"{consoleDisplayName}{GetDisplayValue(environmentValue)} (from environment variable)");
return environmentValue;
}
consoleWriter.WriteLine($"{consoleDisplayName}{GetDisplayValue(defaultValue)} (default)");
return defaultValue;
}
private static int GetOptionOrEnvironmentValue(IConsoleWriter consoleWriter, string consoleDisplayName, int? optionValue, string environmentName, int defaultValue)
{
if (optionValue.HasValue)
{
consoleWriter.WriteLine($"{consoleDisplayName}{optionValue} (from command-line)");
return optionValue.Value;
}
var environmentValue = Environment.GetEnvironmentVariable(environmentName);
if (!string.IsNullOrEmpty(environmentValue) && int.TryParse(environmentValue, out var environmentIntValue))
{
consoleWriter.WriteLine($"{consoleDisplayName}{environmentIntValue} (from environment variable)");
return environmentIntValue;
}
consoleWriter.WriteLine($"{consoleDisplayName}{defaultValue} (default)");
return defaultValue;
}
}
}

10
Tapeti.Cmd/Verbs/BindQueueVerb.cs
View File

@ -35,15 +35,7 @@ namespace Tapeti.Cmd.Verbs
var consoleWriter = console.GetPermanentWriter();
var bindings = BindingParser.Parse(options.Bindings);
var factory = new ConnectionFactory
{
HostName = options.Host,
Port = options.Port,
VirtualHost = options.VirtualHost,
UserName = options.Username,
Password = options.Password
};
var factory = options.CreateConnectionFactory(console);
using var connection = factory.CreateConnection();
using var channel = connection.CreateModel();

10
Tapeti.Cmd/Verbs/DeclareQueueVerb.cs
View File

@ -37,15 +37,7 @@ namespace Tapeti.Cmd.Verbs
// Parse early to fail early
var bindings = BindingParser.Parse(options.Bindings);
var factory = new ConnectionFactory
{
HostName = options.Host,
Port = options.Port,
VirtualHost = options.VirtualHost,
UserName = options.Username,
Password = options.Password
};
var factory = options.CreateConnectionFactory(console);
using var connection = factory.CreateConnection();
using var channel = connection.CreateModel();

10
Tapeti.Cmd/Verbs/ExportVerb.cs
View File

@ -40,15 +40,7 @@ namespace Tapeti.Cmd.Verbs
public void Execute(IConsole console)
{
var consoleWriter = console.GetPermanentWriter();
var factory = new ConnectionFactory
{
HostName = options.Host,
Port = options.Port,
VirtualHost = options.VirtualHost,
UserName = options.Username,
Password = options.Password
};
var factory = options.CreateConnectionFactory(console);
using var messageSerializer = GetMessageSerializer(options);
using var connection = factory.CreateConnection();
using var channel = connection.CreateModel();

11
Tapeti.Cmd/Verbs/ImportVerb.cs
View File

@ -54,16 +54,7 @@ namespace Tapeti.Cmd.Verbs
public void Execute(IConsole console)
{
var consoleWriter = console.GetPermanentWriter();
var factory = new ConnectionFactory
{
HostName = options.Host,
Port = options.Port,
VirtualHost = options.VirtualHost,
UserName = options.Username,
Password = options.Password
};
using var messageSerializer = GetMessageSerializer(options);
var factory = options.CreateConnectionFactory(console); using var messageSerializer = GetMessageSerializer(options);
using var connection = factory.CreateConnection();
using var channel = connection.CreateModel();
var rateLimiter = RateLimiterFactory.Create(console, options.MaxRate, options.BatchSize, options.BatchPauseTime);

11
Tapeti.Cmd/Verbs/PurgeVerb.cs
View File

@ -37,16 +37,7 @@ namespace Tapeti.Cmd.Verbs
return;
}
var factory = new ConnectionFactory
{
HostName = options.Host,
Port = options.Port,
VirtualHost = options.VirtualHost,
UserName = options.Username,
Password = options.Password
};
using var connection = factory.CreateConnection();
var factory = options.CreateConnectionFactory(console); using var connection = factory.CreateConnection();
using var channel = connection.CreateModel();
var messageCount = channel.QueuePurge(options.QueueName);

10
Tapeti.Cmd/Verbs/RemoveQueueVerb.cs
View File

@ -41,15 +41,7 @@ namespace Tapeti.Cmd.Verbs
return;
}
var factory = new ConnectionFactory
{
HostName = options.Host,
Port = options.Port,
VirtualHost = options.VirtualHost,
UserName = options.Username,
Password = options.Password
};
var factory = options.CreateConnectionFactory(console);
uint messageCount;
try

12
Tapeti.Cmd/Verbs/ShovelVerb.cs
View File

@ -61,15 +61,7 @@ namespace Tapeti.Cmd.Verbs
public void Execute(IConsole console)
{
var sourceFactory = new ConnectionFactory
{
HostName = options.Host,
Port = options.Port,
VirtualHost = options.VirtualHost,
UserName = options.Username,
Password = options.Password
};
var sourceFactory = options.CreateConnectionFactory(console);
using var sourceConnection = sourceFactory.CreateConnection();
using var sourceChannel = sourceConnection.CreateModel();
@ -78,7 +70,7 @@ namespace Tapeti.Cmd.Verbs
var targetFactory = new ConnectionFactory
{
HostName = !string.IsNullOrEmpty(options.TargetHost) ? options.TargetHost : options.Host,
Port = options.TargetPort ?? options.Port,
Port = options.TargetPort ?? options.Port ?? 5672,
VirtualHost = !string.IsNullOrEmpty(options.TargetVirtualHost) ? options.TargetVirtualHost : options.VirtualHost,
UserName = !string.IsNullOrEmpty(options.TargetUsername) ? options.TargetUsername : options.Username,
Password = !string.IsNullOrEmpty(options.TargetPassword) ? options.TargetPassword : options.Password

10
Tapeti.Cmd/Verbs/UnbindQueueVerb.cs
View File

@ -35,15 +35,7 @@ namespace Tapeti.Cmd.Verbs
var consoleWriter = console.GetPermanentWriter();
var bindings = BindingParser.Parse(options.Bindings);
var factory = new ConnectionFactory
{
HostName = options.Host,
Port = options.Port,
VirtualHost = options.VirtualHost,
UserName = options.Username,
Password = options.Password
};
var factory = options.CreateConnectionFactory(console);
using var connection = factory.CreateConnection();
using var channel = connection.CreateModel();