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Onboarding the .Net CD Agent

These steps outline the onboarding steps needed on the environment, with the CD agent, added to each component that builds up the Application Under Test.

Configuration steps

  1. Download an Agent Token from the dashboard and make it available to each component configured with our agent.

    • This can be done by placing it in a file accessible to the agent or through an environment variable directly or through a secret manager.

  2. Download the CD agent and make it available to each component by copying it in, downloading it during startup, or mounting an external volume containing the agent. Please refer to the dedicated section below for details.

  3. Create an “Integration Build Lab ID” entry of type “CD only” in the dashboard for the tested application (see picture on the right).

    • Do so in the settings of the SeaLights dashboard, under 'Cockpit & Onboarding → Integration Build Labs → CD Only'

    • The lab ID from this integration build entry needs to be provided to the CD agent through an environment variable.

  4. Add the CD agent to your environment to attach it as a Profiler to your Application Under Test.

  5. Set the relevant parameters and/or environment variables to be used (See samples below)

When the application is up and running and the Sealights CD Agent configured, you can see it is properly running from the Cockpit -> Live Agents Monitor screen.

Agent’s Parameters Reference

Mandatory parameters

Property (CLI)

Required

Description

Env variable

JSON

--appName

Yes

Name of the target application

SL_GENERAL_APPNAME

"general": {
  "appName": ""
}

--branchName

Yes

The source branch of the application

SL_GENERAL_BRANCHNAME

"general": {
  "branchName": ""
}

--buildName

Yes

The build label/version of the current artefact

SL_GENERAL_BUILDNAME

"general": {
  "buildName": ""
}

--labId

Yes

CD-only lab id

SL_LABID, SL_SESSION_LABID

"general": {
  "labId": ""
}

--binDir

Yes

Path to the scanned folder where all binary files are located

SL_SCAN_BINDIR

"general": {
  "binDir": ""
}

--includeNamespace

Yes

Comma-separated list of namespaces to include in the scan.
Supports wildcard (* = any string, ? = any character) characters.

SL_SCAN_INCLUDENAMESPACES

"general": {
  "includeNamespaces": ""
}

Optional parameters

These parameters may be required due to your specific configuration or environment’s limitations (e.g., proxy).

Property

Description

--excludeNamespace

Comma-separated list of namespaces to exclude from the scan. Supports wildcard (* = any string, ? = any character) characters.

Default value: System.*, Microsoft.*

SL_SCAN_EXCLUDENAMESPACES

--include

Comma-separated list of files to include in scan. Supports wildcard (* = any string, ? = any character) characters.

Default value: *.dll,*.exe

SL_SCAN_INCLUDEFILES

--exclude

Comma-separated list of files to exclude from the scan. Supports wildcard (* = any string, ? = any character) characters.
Default value: System.", "Microsoft.

SL_SCAN_EXCLUDEFILES

--includedAssemblies

Comma-separated list of assemblies to include. Supports wildcard (* = any string, ? = any character) characters.

SL_SCAN_INCLUDEASSEMBLIES

--excludedAssemblies

Comma-separated list of assemblies to exclude from the scan. Supports wildcard (* = any string, ? = any character) characters.

Default value: mscorlib, System., Microsoft.

SL_SCAN_EXCLUDEASSEMBLIES

--srcRootDir

Source root directory, where all paths will be made relative to

SL_SCAN_SRCROOTDIR

"scan": {
  "srcRootDir": ""
}

--target

The name of the target application that will be started

SL_PROFILER_TARGET

--targetArgs

Arguments to be passed to the target process

SL_PROFILER_TARGETARGS

--workingDir

The path to the working directory

SL_PROFILER_WORKINGDIR

Logging parameters

To enable logs, you can set the following parameters

Parameter (CLI)

Description

Env variable

JSON

--profilerLogLevel

Log level. Default and Recommended value is 6

  • 0=None

  • 3=Errors

  • 4=Warnings

  • 6=Info (Light Debug)

  • 7=Debug(Full)

SL_PROFILER_LOGLEVEL

"profiler": {
  "logLevel": 6
}

--profilerLogDir

Enables logging profiler data to file. Requires LogLevel to be specified.

SL_PROFILER_LOGDIRECTORY

"profiler": {
  "logDirectory": ""
}

Sample Commands

Downloading the agent

The different available options to download the agent are documented in a dedicated central page: https://sealights.atlassian.net/l/cp/g0omvaoL

For example, you can use the following commands to automate the process

Linux

wget -nv -O sealights-dotnet-agent-linux.tar.gz https://agents.sealights.co/dotnetcore/latest/sealights-dotnet-agent-linux-self-contained.tar.gz
mkdir sl-dotnet-agent && tar -xzf ./sealights-dotnet-agent-linux.tar.gz --directory ./sl-dotnet-agent
echo "[Sealights] .NetCore Agent version is: `cat ./sl-dotnet-agent/version.txt`"

Windows

iwr -OutFile sealights-dotnet-agent.zip -UseBasicParsing -Uri https://agents.sealights.co/dotnetcore/latest/sealights-dotnet-agent-windows-self-contained.zip
Expand-Archive .\sealights-dotnet-agent.zip -DestinationPath sl-dotnet-agent -Force
Write-Output "[Sealights] .NetCore Agent version is: $(Get-Content .\sl-dotnet-agent\version.txt)"

Configuration commands

Simple Web App

This simple use case illustrates how to collect coverage with the CD agent from a web application started without parameters.

.\net6.0\SL.DotNet.exe cdAgent --appName "TestApp" --branchName "main" --buildName "$(Get-Date -Format "yyyy-MM-dd-HH-mm-ss")" --labId "integ_main_integration_TestApp_Integration" \
    --binDir "WeatherApi\bin\Debug\net6.0" --includeNamespace "WeatherApi*" \
    --target "WeatherApi\bin\Debug\net6.0\WeatherApi.exe" --workingDir "WeatherApi\bin\Debug\net6.0"  \
    --identifyMethodsByFqn
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