https://github.com/vbem/k8s-port-forward

An action forward local ports to workloads in Kubernetes.
https://github.com/vbem/k8s-port-forward

actions daemon k8s kubectl kubernetes port-forward workload

Last synced: 3 months ago
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An action forward local ports to workloads in Kubernetes.

• Host: GitHub
• URL: https://github.com/vbem/k8s-port-forward
• Owner: vbem
• License: apache-2.0
• Created: 2022-04-10T05:16:26.000Z (almost 3 years ago)
• Default Branch: main
• Last Pushed: 2023-10-21T07:02:56.000Z (over 1 year ago)
• Last Synced: 2024-10-31T10:46:32.807Z (4 months ago)
• Topics: actions, daemon, k8s, kubectl, kubernetes, port-forward, workload
• Homepage: https://github.com/marketplace/actions/kubernetes-port-forward
• Size: 18.6 KB
• Stars: 5
• Watchers: 2
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE
  • Codeowners: .github/CODEOWNERS

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README

        
# k8s-port-forward

[![Testing](https://github.com/vbem/k8s-port-forward/actions/workflows/test.yml/badge.svg)](https://github.com/vbem/k8s-port-forward/actions/workflows/test.yml)

[![Super Linter](https://github.com/vbem/k8s-port-forward/actions/workflows/linter.yml/badge.svg)](https://github.com/vbem/k8s-port-forward/actions/workflows/linter.yml)

[![GitHub release (latest SemVer)](https://img.shields.io/github/v/release/vbem/k8s-port-forward?label=Release&logo=github)](https://github.com/vbem/k8s-port-forward/releases)

[![Marketplace](https://img.shields.io/badge/GitHub%20Actions-Marketplace-blue?logo=github)](https://github.com/marketplace/actions/kubernetes-port-forward)

## About

This action can be used to [forward](https://kubernetes.io/docs/tasks/access-application-cluster/port-forward-access-application-cluster/) local ports on GitHub runners to workloads in your Kubernetes cluster.

Current implementation is to setup a `kubectl port-forward` daemon in background and immune to hangups, which make local ports on runner available to subsequent steps.

Note that this action follow [official *kubeconfig* authentication methods](https://kubernetes.io/docs/concepts/configuration/organize-cluster-access-kubeconfig/) and you need to sign in your K8s cluster via other actions such as [kubeconfig4sa](https://github.com/marketplace/actions/kubeconfig-for-service-account-sa), or manually set `KUBECONFIG` environment variable for this action in your workflows file.

## Example usage

```yaml

- name: Setup KUBECONFIG

  uses: vbem/kubeconfig4sa@v1

  with:

    server:     https://your-kubeapi-server:6443

    ca-base64:  ${{ secrets.K8S_CA_BASE64 }}

    token:      ${{ secrets.K8S_SA_TOKEN }}

    namespace:  my-namespace

# This action will forward port 8080 on runner to port 80 of your service in Kubernetes!

- name: Setup Kubernetes port-forward daemon

  uses: vbem/k8s-port-forward@v1

  with:

    workload: 'svc/mysvc'

- name: Request a service in Kubernetes

  run: curl localhost:8080

```

![Example](https://repository-images.githubusercontent.com/479920190/ce3b08cc-302b-481e-8447-5f060270d3f5)

## Inputs

ID | Type | Default | Description

--- | --- | --- | ---

`workload` | String | *Required input* | Kubernetes workload `type/name` such as `deploy/mydeploy`, `svc/mysvc` or `po/mypod`

`mappings` | String  | `8080:80` | Ports mappings `[LOCAL_PORT:]REMOTE_PORT [...[LOCAL_PORT_N:]REMOTE_PORT_N]`

`options` | String | `` | Other command-line options, such as `--namespace=myns`

`sleep` | String | `3` | Seconds to wait before action finished

## Outputs

ID | Type | Description

--- | --- | ---

`pid` | String | Process ID of port-forward daemon

`log` | String | Path to port-forward log file