Add permissions to all GitHub actions

.github/workflows/generate-code-coverage.yaml

@@ -14,6 +14,11 @@
 
 name: Generate Code Coverage
 on: [pull_request]
+
+permissions:
+  contents: read
+# upload-artifact does not need write permissions as it relies on an undocumented token
+# https://github.com/actions/upload-artifact/issues/197#issuecomment-832279436
 
 jobs:
   cover-base:

.github/workflows/govulncheck.yaml

@@ -17,6 +17,10 @@ on:
   pull_request:
     branches:
       - 'release-*'
+
+permissions:
+  contents: read
+
 jobs:
   govulncheck:
     runs-on: ubuntu-latest

.github/workflows/helm-chart-release.yaml

@@ -21,6 +21,10 @@ on:
     paths:
       - "charts/**/Chart.yaml"
 
+permissions:
+  contents: write # Create new release to host chart artifacts
+  pages: write # Publish chart to pages
+
 jobs:
   release:
     runs-on: ubuntu-latest

.github/workflows/output-code-coverage.yaml

@@ -17,6 +17,10 @@ on:
   workflow_run:
     workflows: [Generate Code Coverage]
     types: [completed]
+
+permissions:
+  contents: read
+  pull-requests: write # Create/update comment on PRs
 
 jobs:
   output-code-coverage:

.github/workflows/release.yaml

@@ -18,6 +18,10 @@ on:
     # Sequence of patterns matched against refs/tags
     tags:
       - "v*" # Push events to matching v*, i.e. v1.0, v20.15.10
+
+permissions:
+  contents: write # Create releases
+
 jobs:
   build:
     name: Release

.github/workflows/trivy-containers.yaml

@@ -20,6 +20,10 @@ on:
   schedule:
     - cron: '0 */24 * * *'
 
+permissions:
+  contents: read
+  security-events: write # Update findings in security tab
+
 jobs:
   build-matrix:
     runs-on: ubuntu-latest

.github/workflows/trivy.yaml

@@ -18,6 +18,10 @@ on:
     branches:
       - master
   pull_request:
+
+permissions:
+  contents: read
+  security-events: write # Update findings in security tab
 
 jobs:
   build:

.github/workflows/unit-tests.yaml

@@ -18,6 +18,9 @@ on:
     branches:
       - master
   pull_request:
+
+permissions:
+  contents: read
 
 jobs:
   buildx: