chore: make production ready (#5)

Changes:

- Update deployment instructions in `README.md` to use the helm
  repository
- Add more badges
- Fix typo found by `misspell`
- Update `appVersion` in helm chart to point to the latest tag

Author: martinohmann

README.md

@@ -1,6 +1,8 @@
 # pod-image-swap-webhook
 
 [![Build Status](https://github.com/Bonial-International-GmbH/pod-image-swap-webhook/actions/workflows/ci.yml/badge.svg)](https://github.com/Bonial-International-GmbH/pod-image-swap-webhook/actions/workflows/ci.yml)
+[![Go Report Card](https://goreportcard.com/badge/github.com/Bonial-International-GmbH/pod-image-swap-webhook)](https://goreportcard.com/report/github.com/Bonial-International-GmbH/pod-image-swap-webhook)
+![License](https://img.shields.io/github/license/Bonial-International-GmbH/pod-image-swap-webhook)
 
 A mutating webhook that patches Pod container images based on configuration
 rules. For example, if you want to transparently proxy image pulls through an
@@ -22,6 +24,13 @@ Of course this webhook also works without Harbor.
 
 The helm chart provided in this repository can be used to deploy the webhook.
 
+First, add the helm repository:
+
+```sh
+helm repo add pod-image-swap-webhook \
+  https://bonial-international-gmbh.github.io/pod-image-swap-webhook
+```
+
 Create a `values.yaml` and add a `webhookConfig` section with the desired
 replacement configuration, for example:
 
@@ -39,13 +48,15 @@ webhookConfig:
       replacement: registry.example.org/docker.io
 ```
 
-You can find documentation for all available configuration fields in
-[`config.sample.yaml`](config.sample.yaml).
+You can find documentation for all available `webhookConfig` fields in
+[`config.sample.yaml`](config.sample.yaml). For more helm configuration options
+have a look into the [`values.yaml`
+defaults](charts/pod-image-swap-webhook/values.yaml).
 
 Finally use helm to install the webhook:
 
 ```sh
-helm upgrade pod-image-swap-webhook charts/pod-image-swap-webhook \
+helm upgrade pod-image-swap-webhook pod-image-swap-webhook/pod-image-swap-webhook \
   --install --namespace kube-system --values values.yaml
 ```
 

charts/pod-image-swap-webhook/Chart.yaml

@@ -2,5 +2,5 @@ apiVersion: v2
 name: pod-image-swap-webhook
 description: A webhook that replaces Pod images based on configuration values
 type: application
-version: 0.0.1
-appVersion: "v0.0.1"
+version: 0.0.2
+appVersion: "v0.0.2"

pkg/admission/handler.go

@@ -100,7 +100,7 @@ func (h *PodImageHandler) patchContainer(container corev1.Container) corev1.Cont
 }
 
 // normalizeImage normalizes images from dockerhub to their long form.
-// Dockerhub images without namespace are prefixed with `docker.io/libary`,
+// Dockerhub images without namespace are prefixed with `docker.io/library`,
 // namespaced images are prefixed with `docker.io/`. Images that already start
 // with `docker.io/` or any other registry domain are left untouched.
 //