ConnectionClosedIssueReproduction: A C# repository from raimana

This project is a minimal reproduction of the following issues:

It has 2 durable functions looping through a function/activity that's listing files from an SFTP site, the number of iterations is defined by the MaxIterations setting.

One durable function uses WinSCP, and the other uses SSH.NET.

How to Run Locally

Add the following local.settings.json substituting environment variables with the appropriate values:

{
    "IsEncrypted": false,
    "Values": {
        "AzureWebJobsStorage": "UseDevelopmentStorage=true",
        "FUNCTIONS_WORKER_RUNTIME": "dotnet-isolated",

        // Cron expressions for WinSCP & SSH.NET Orchestrator time trigger
        "WinScpSchedule": "0 0 0 * * *",
        "SshNetSchedule": "0 0 0 * * *",

        // Max number of iterations, connecting and listing files from the SFTP server
        "MaxIterations": 300,

        // The SFTP directory to list files from
        "SftpDirectory": "/home/sftp-lab",

        "SftpSettings:Host": "",
        "SftpSettings:Port": 22,
        "SftpSettings:Username": "",
        "SftpSettings:Password": "", // Only required if using Password authentication mode
        "SftpSettings:AuthMode": "PrivateKey", // Valid values: "PrivateKey", "Password"
        "SftpSettings:PrivateKeyPpkFormat": "", // WinSCP uses the PPK format 
        "SftpSettings:PrivateKeyRsaFormat": "", // SshNet uses the RSA Classic format, does NOT support the new Open SSH format
        "SftpSettings:PrivateKeyPassPhrase": "" // Only required if the private key is encrypted
    }
}

Azure Deployment (if using provided ARM template)

Prerequisites

Key Vault Instance
App Insights Instance

Key Vault Secrets

SftpTestPrivateKeyPpkFormat
SftpTestPrivateKeyRsaFormat
SftpTestPrivateKeyPassPhrase

ARM Template Parameters

See parameters in ./ArmTemplates/azuredeploy.parameters.json

How to Trigger the Orchestrators Manually

SSH.NET Orchestrator

# Azure
curl --location 'https://{INSERT FUNCTION NAME HERE}.azurewebsites.net/admin/functions/SshNetTimeTrigger' \
--header 'x-functions-key: {INSERT FUNCTION KEY HERE}' \
--header 'Content-Type: application/json' \
--data '{ "input": ""}'

# Local
curl --location 'http://localhost:7071/admin/functions/SshNetTimeTrigger' \
--header 'Content-Type: application/json' \
--data '{ "input": ""}'

WinSCP Orchestrator

# Azure
curl --location 'https://{INSERT FUNCTION NAME HERE}.azurewebsites.net/admin/functions/WinScpTimeTrigger' \
--header 'x-functions-key: {INSERT FUNCTION KEY HERE}' \
--header 'Content-Type: application/json' \
--data '{ "input": ""}'

# Local
curl --location 'http://localhost:7071/admin/functions/WinScpTimeTrigger' \
--header 'Content-Type: application/json' \
--data '{ "input": ""}'

raimana/ConnectionClosedIssueReproduction