Azure/azure-functions-core-tools

Kubernetes Deploy - Invalid URI exception when only hostname populated in LoadBalancer

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#3,215 opened on Dec 2, 2022

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area: kubernetesbuggood first issue

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Description

When deploying using the func kubernetes deploy command on local k8s (Docker Desktop), an Invalid URI: The hostname could not be parsed exception is thrown due to a null LoadBalancer Ingress IP address here: https://github.com/Azure/azure-functions-core-tools/blob/v4.x/src/Azure.Functions.Cli/Kubernetes/KubernetesHelpers.cs#L440 This occurs because only hostname is populated, and not the expected IP address.

 status:
  loadBalancer:
    ingress:
    - hostname: localhost

A fix to allow either IP address or hostname appears to have been made for the KNative platform, but was not ported to KubernetesHelpers. See https://github.com/Azure/azure-functions-core-tools/pull/1222

Contributor guide

Research direction
Inspect the KubernetesHelpers.cs file and port the fix from the KNative platform to handle hostname as well as IP address in LoadBalancer ingress.
Tech stack
csharp
Domain
backenddevops
Issue type
Bug
DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
2
Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.
1-3 hours
Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.
Fresh
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
Clear
Prerequisites
GitC#
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
75