chore: rename default branch master -> main (1/2: code)

.github/workflows/ci.yml

@@ -3,7 +3,7 @@ name: CI
 on:
   push:
     branches:
-      - master
+      - main
   pull_request:
 
 concurrency:

.github/workflows/codeql-analysis.yml

@@ -13,10 +13,10 @@ name: "CodeQL"
 
 on:
   push:
-    branches: [ master ]
+    branches: [ main ]
   pull_request:
     # The branches below must be a subset of the branches above
-    branches: [ master ]
+    branches: [ main ]
   schedule:
     - cron: '34 23 * * 4'
 

.github/workflows/e2e-test.yaml

@@ -3,7 +3,7 @@ name: e2e-test
 on:
   push:
     branches:
-      - master
+      - main
   pull_request:
 
 concurrency:

.github/workflows/operator-release.yml

@@ -151,20 +151,20 @@ jobs:
   sync-release-docs:
     # The steps above only bump version references in the ephemeral checkout
     # used to package the chart - they're never committed back to git, so
-    # master keeps referring to whichever tag was last bumped by hand. This
+    # main keeps referring to whichever tag was last bumped by hand. This
     # job closes that gap for canonical dated releases by opening a PR
-    # against master (direct pushes are blocked by branch protection).
+    # against main (direct pushes are blocked by branch protection).
     runs-on: ubuntu-latest
     needs: [prepare, release-helm]
     if: needs.prepare.outputs.is_canonical == 'true'
     permissions:
       contents: write
       pull-requests: write
     steps:
-      - name: Checkout master
+      - name: Checkout main
         uses: actions/checkout@v6
         with:
-          ref: master
+          ref: main
       - name: Update version references
         run: ./scripts/bump-release-version.sh "${{ needs.prepare.outputs.tag }}"
       - name: Open PR with version bump
@@ -177,9 +177,9 @@ jobs:
             Automated version reference bump for release `${{ needs.prepare.outputs.tag }}`.
 
             ---
-            *Generated by https://github.com/adobe/koperator/blob/master/.github/workflows/operator-release.yml*
+            *Generated by https://github.com/adobe/koperator/blob/main/.github/workflows/operator-release.yml*
           branch: release-docs/${{ needs.prepare.outputs.tag }}
-          base: master
+          base: main
           delete-branch: true
           labels: |
             release

.github/workflows/update-go-deps.yml

@@ -19,7 +19,7 @@ jobs:
       - name: Checkout code
         uses: actions/checkout@v6
         with:
-          ref: master
+          ref: main
           fetch-depth: 0
 
       - name: Set up Go
@@ -68,7 +68,7 @@ jobs:
             Please review the changes and ensure all tests pass before merging.
 
             ---
-            *Generated by https://github.com/adobe/koperator/blob/master/.github/workflows/update-go-deps.yml*
+            *Generated by https://github.com/adobe/koperator/blob/main/.github/workflows/update-go-deps.yml*
           branch: automated/update-go-deps
           delete-branch: true
           labels: |

README.md

@@ -11,12 +11,12 @@
 
 <p align="center">
 
-![Go version](https://img.shields.io/github/go-mod/go-version/adobe/koperator/master)
+![Go version](https://img.shields.io/github/go-mod/go-version/adobe/koperator/main)
 [![Go Report Card](https://goreportcard.com/badge/github.com/adobe/koperator)](https://goreportcard.com/report/github.com/adobe/koperator)
-![CI](https://img.shields.io/github/actions/workflow/status/adobe/koperator/ci.yml?branch=master&label=CI)
-![CI](https://img.shields.io/github/actions/workflow/status/adobe/koperator/codeql-analysis.yml?branch=master&label=CodeQL)
-![Image](https://img.shields.io/github/actions/workflow/status/adobe/koperator/e2e-test.yaml?branch=master&label=E2E)
-![Helm chart](https://img.shields.io/github/actions/workflow/status/adobe/koperator/helm.yml?branch=master&label=Helm%20chart)
+![CI](https://img.shields.io/github/actions/workflow/status/adobe/koperator/ci.yml?branch=main&label=CI)
+![CI](https://img.shields.io/github/actions/workflow/status/adobe/koperator/codeql-analysis.yml?branch=main&label=CodeQL)
+![Image](https://img.shields.io/github/actions/workflow/status/adobe/koperator/e2e-test.yaml?branch=main&label=E2E)
+![Helm chart](https://img.shields.io/github/actions/workflow/status/adobe/koperator/helm.yml?branch=main&label=Helm%20chart)
 
 
 </p>
@@ -114,10 +114,10 @@ You can deploy Koperator using a Helm chart from GitHub Container Registry (OCI)
 1. Install the Koperator `CustomResourceDefinition` resources (adjust the version number to the Koperator release you want to install). This is performed in a separate step to allow you to uninstall and reinstall Koperator without deleting your already installed custom resources.
 
 ```sh
-kubectl apply -f https://raw.githubusercontent.com/adobe/koperator/refs/heads/master/config/base/crds/kafka.banzaicloud.io_cruisecontroloperations.yaml
-kubectl apply -f https://raw.githubusercontent.com/adobe/koperator/refs/heads/master/config/base/crds/kafka.banzaicloud.io_kafkaclusters.yaml
-kubectl apply -f https://raw.githubusercontent.com/adobe/koperator/refs/heads/master/config/base/crds/kafka.banzaicloud.io_kafkatopics.yaml
-kubectl apply -f https://raw.githubusercontent.com/adobe/koperator/refs/heads/master/config/base/crds/kafka.banzaicloud.io_kafkausers.yaml
+kubectl apply -f https://raw.githubusercontent.com/adobe/koperator/refs/heads/main/config/base/crds/kafka.banzaicloud.io_cruisecontroloperations.yaml
+kubectl apply -f https://raw.githubusercontent.com/adobe/koperator/refs/heads/main/config/base/crds/kafka.banzaicloud.io_kafkaclusters.yaml
+kubectl apply -f https://raw.githubusercontent.com/adobe/koperator/refs/heads/main/config/base/crds/kafka.banzaicloud.io_kafkatopics.yaml
+kubectl apply -f https://raw.githubusercontent.com/adobe/koperator/refs/heads/main/config/base/crds/kafka.banzaicloud.io_kafkausers.yaml
 ```
 
 2. Install Koperator into the `kafka` namespace using the OCI Helm chart from GitHub Container Registry. Use `--skip-crds` since the CRDs were already installed in the previous step - without it, Helm's own CRD install can conflict with the `kubectl apply` above ([#265](https://github.com/adobe/koperator/issues/265)):
@@ -147,7 +147,7 @@ helm install kafka-operator ./kafka-operator/ --namespace=kafka --create-namespa
 1. Create the Kafka cluster using the `KafkaCluster` custom resource. The quick start uses a minimal custom resource, but there are other examples in the same directory.
 
 ```sh
-kubectl create -n kafka -f https://raw.githubusercontent.com/adobe/koperator/master/config/samples/simplekafkacluster.yaml
+kubectl create -n kafka -f https://raw.githubusercontent.com/adobe/koperator/main/config/samples/simplekafkacluster.yaml
 ```
 
 1. Verify that the Kafka cluster has been created.
@@ -209,7 +209,7 @@ For detailed documentation on the Koperator project, see the [Koperator document
 We use GitHub to track issues and accept contributions.
 If you would like to raise an issue or open a pull request, please refer to our [contribution guide](./CONTRIBUTING.md).
 
-If you use Koperator in a production environment, we encourage you to add yourself to the list of production [adopters](https://github.com/adobe/koperator/blob/master/ADOPTERS.md).
+If you use Koperator in a production environment, we encourage you to add yourself to the list of production [adopters](https://github.com/adobe/koperator/blob/main/ADOPTERS.md).
 
 ## Community
 

charts/kafka-operator/README.md

@@ -13,10 +13,10 @@ Before installing the chart, you must first install the Koperator CustomResource
 This is performed in a separate step to allow you to easily uninstall and reinstall Koperator without deleting your installed custom resources.
 
 ```bash
-kubectl apply -f https://raw.githubusercontent.com/adobe/koperator/refs/heads/master/config/base/crds/kafka.banzaicloud.io_cruisecontroloperations.yaml
-kubectl apply -f https://raw.githubusercontent.com/adobe/koperator/refs/heads/master/config/base/crds/kafka.banzaicloud.io_kafkaclusters.yaml
-kubectl apply -f https://raw.githubusercontent.com/adobe/koperator/refs/heads/master/config/base/crds/kafka.banzaicloud.io_kafkatopics.yaml
-kubectl apply -f https://raw.githubusercontent.com/adobe/koperator/refs/heads/master/config/base/crds/kafka.banzaicloud.io_kafkausers.yaml
+kubectl apply -f https://raw.githubusercontent.com/adobe/koperator/refs/heads/main/config/base/crds/kafka.banzaicloud.io_cruisecontroloperations.yaml
+kubectl apply -f https://raw.githubusercontent.com/adobe/koperator/refs/heads/main/config/base/crds/kafka.banzaicloud.io_kafkaclusters.yaml
+kubectl apply -f https://raw.githubusercontent.com/adobe/koperator/refs/heads/main/config/base/crds/kafka.banzaicloud.io_kafkatopics.yaml
+kubectl apply -f https://raw.githubusercontent.com/adobe/koperator/refs/heads/main/config/base/crds/kafka.banzaicloud.io_kafkausers.yaml
 ```
 
 To install the chart from the OCI registry. Use `--skip-crds` since the CRDs were already installed in the

renovate.json

@@ -1,7 +1,7 @@
 {
   "$schema": "https://docs.renovatebot.com/renovate-schema.json",
   "forkProcessing": "enabled",
-  "baseBranchPatterns": ["master", "gh-pages"],
+  "baseBranchPatterns": ["main", "gh-pages"],
   "extends": [
     ":dependencyDashboard",
     ":ignoreUnstable",
@@ -70,9 +70,9 @@
       "matchManagers": [
         "gomod"
       ],
-      "matchBaseBranches": ["master"],
+      "matchBaseBranches": ["main"],
       "enabled": false,
-      "description": "Disable Go module updates on master - handled by automated workflow: .github/workflows/update-go-deps.yml. gh-pages' go.mod is Hugo Modules (theme deps like docsy), not app code, so it stays enabled there."
+      "description": "Disable Go module updates on main - handled by automated workflow: .github/workflows/update-go-deps.yml. gh-pages' go.mod is Hugo Modules (theme deps like docsy), not app code, so it stays enabled there."
     },
     {
       "matchCategories": [