chore: enable non-interactively mode for UBI9 image (#2814)

* chore: enable non-interactively mode for UBI9 image

* chore: maximize build space for the integration tests

Author: afdesk

.github/workflows/build.yaml

@@ -119,6 +119,18 @@ jobs:
     runs-on: ubuntu-latest
     timeout-minutes: 30
     steps:
+      - name: Maximize build space
+        uses: AdityaGarg8/remove-unwanted-software@v5
+        with:
+          remove-android: 'true'
+          remove-dotnet: 'true'
+          remove-haskell: 'true'
+          remove-codeql: 'true'
+          remove-docker-images: 'true'
+          remove-large-packages: 'true'
+          remove-cached-tools: 'true'
+          remove-swapfile: 'true'
+
       - name: Checkout code
         uses: actions/checkout@v4
 

build/trivy-operator/Dockerfile.ubi9

@@ -3,7 +3,9 @@
 
 FROM registry.access.redhat.com/ubi9/ubi-minimal@sha256:34880b64c07f28f64d95737f82f891516de9a3b43583f39970f7bf8e4cfa48b7
 
-RUN microdnf install shadow-utils
+# Install shadow-utils non-interactively and clean up package metadata to keep image small
+RUN microdnf -y install shadow-utils \
+    && microdnf clean all
 RUN useradd -u 10000 trivyoperator
 WORKDIR /opt/bin/
 COPY trivy-operator /usr/local/bin/trivy-operator