Attempt to reduce contention in integ-test-full

.github/workflows/integ-test-cache-cleanup.yml

@@ -21,6 +21,7 @@ env:
 jobs:
   cache-cleanup-full-build:
     strategy:
+      max-parallel: 1
       fail-fast: false
       matrix:
         os: ${{fromJSON(inputs.runner-os)}}
@@ -43,6 +44,7 @@ jobs:
   cache-cleanup-assemble-build:
     needs: cache-cleanup-full-build
     strategy:
+      max-parallel: 1
       fail-fast: false
       matrix:
         os: ${{fromJSON(inputs.runner-os)}}
@@ -65,6 +67,7 @@ jobs:
   cache-cleanup-check-clean-cache:
     needs: cache-cleanup-assemble-build
     strategy:
+      max-parallel: 1
       fail-fast: false
       matrix:
         os: ${{fromJSON(inputs.runner-os)}}

.github/workflows/integ-test-caching-config.yml

@@ -20,6 +20,7 @@ env:
 jobs:
   caching-config-seed-build:
     strategy:
+      max-parallel: 1
       fail-fast: false
       matrix:
         os: ${{fromJSON(inputs.runner-os)}}
@@ -50,6 +51,7 @@ jobs:
   caching-config-verify-build:
     needs: caching-config-seed-build
     strategy:
+      max-parallel: 1
       fail-fast: false
       matrix:
         os: ${{fromJSON(inputs.runner-os)}}
@@ -78,6 +80,7 @@ jobs:
   # Test that build scans are captured when caching is explicitly disabled
   caching-config-cache-disabled:
     strategy:
+      max-parallel: 1
       fail-fast: false
       matrix:
         os: ${{fromJSON(inputs.runner-os)}}
@@ -132,6 +135,7 @@ jobs:
     env:
       GRADLE_BUILD_ACTION_CACHE_KEY_PREFIX: caching-config-write-only-${{ inputs.cache-key-prefix }}
     strategy:
+      max-parallel: 1
       fail-fast: false
       matrix:
         os: ${{fromJSON(inputs.runner-os)}}
@@ -155,6 +159,7 @@ jobs:
       GRADLE_BUILD_ACTION_CACHE_KEY_PREFIX: caching-config-write-only-${{ inputs.cache-key-prefix }}
     needs: caching-config-seed-write-only
     strategy:
+      max-parallel: 1
       fail-fast: false
       matrix:
         os: ${{fromJSON(inputs.runner-os)}}

.github/workflows/integ-test-dependency-graph.yml

@@ -23,11 +23,7 @@ env:
 
 jobs:
   dependency-graph-groovy-upload:
-    strategy:
+    runs-on: "ubuntu-latest"
-      fail-fast: false
-      matrix:
-        os: ${{fromJSON(inputs.runner-os)}}
-    runs-on: ${{ matrix.os }}
     steps:
     - name: Checkout sources
       uses: actions/checkout@v4
@@ -59,11 +55,7 @@ jobs:
         DEPENDENCY_GRAPH_DOWNLOAD_ARTIFACT_NAME: groovy-upload
 
   dependency-graph-kotlin-generate-and-submit:
-    strategy:
+    runs-on: "ubuntu-latest"
-      fail-fast: false
-      matrix:
-        os: ${{fromJSON(inputs.runner-os)}}
-    runs-on: ${{ matrix.os }}
     steps:
     - name: Checkout sources
       uses: actions/checkout@v4
@@ -79,11 +71,7 @@ jobs:
       working-directory: .github/workflow-samples/kotlin-dsl
 
   dependency-graph-multiple-builds:
-    strategy:
+    runs-on: "ubuntu-latest"
-      fail-fast: false
-      matrix:
-        os: ${{fromJSON(inputs.runner-os)}}
-    runs-on: ${{ matrix.os }}
     steps:
     - name: Checkout sources
       uses: actions/checkout@v4

.github/workflows/integ-test-dependency-submission.yml

@@ -24,6 +24,7 @@ env:
 jobs:
   dependency-submission-groovy-generate-and-upload:
     strategy:
+      max-parallel: 1
       fail-fast: false
       matrix:
         os: ${{fromJSON(inputs.runner-os)}}
@@ -46,6 +47,7 @@ jobs:
   dependency-submission-groovy-restore-cache:
     needs: [dependency-submission-groovy-generate-and-upload]
     strategy:
+      max-parallel: 1
       fail-fast: false
       matrix:
         os: ${{fromJSON(inputs.runner-os)}}
@@ -67,6 +69,7 @@ jobs:
   dependency-submission-groovy-download-and-submit:
     needs: [dependency-submission-groovy-generate-and-upload]
     strategy:
+      max-parallel: 1
       fail-fast: false
       matrix:
         os: ${{fromJSON(inputs.runner-os)}}
@@ -86,6 +89,7 @@ jobs:
 
   dependency-submission-kotlin-generate-and-submit:
     strategy:
+      max-parallel: 1
       fail-fast: false
       matrix:
         os: ${{fromJSON(inputs.runner-os)}}
@@ -103,6 +107,7 @@ jobs:
 
   dependency-submission-multiple-builds:
     strategy:
+      max-parallel: 1
       fail-fast: false
       matrix:
         os: ${{fromJSON(inputs.runner-os)}}
@@ -148,6 +153,7 @@ jobs:
 
   dependency-submission-multiple-builds-upload:
     strategy:
+      max-parallel: 1
       fail-fast: false
       matrix:
         os: ${{fromJSON(inputs.runner-os)}}
@@ -299,6 +305,7 @@ jobs:
 
   dependency-submission-custom-report-dir-submit:
     strategy:
+      max-parallel: 1
       fail-fast: false
       matrix:
         os: ${{fromJSON(inputs.runner-os)}}

.github/workflows/integ-test-provision-gradle-versions.yml

@@ -23,6 +23,7 @@ jobs:
   # Each build verifies that it is executed with the expected Gradle version.
   provision-gradle:
     strategy:
+      max-parallel: 1
       fail-fast: false
       matrix:
         os: ${{fromJSON(inputs.runner-os)}}

.github/workflows/integ-test-restore-configuration-cache.yml

@@ -25,6 +25,7 @@ jobs:
     env:
       GRADLE_BUILD_ACTION_CACHE_KEY_JOB: restore-cc-groovy
     strategy:
+      max-parallel: 1
       fail-fast: false
       matrix:
         os: ${{fromJSON(inputs.runner-os)}}
@@ -57,6 +58,7 @@ jobs:
       GRADLE_BUILD_ACTION_CACHE_KEY_JOB_EXECUTION: ${{github.sha}}_1
     needs: restore-cc-seed-build-groovy
     strategy:
+      max-parallel: 1
       fail-fast: false
       matrix:
         os: ${{fromJSON(inputs.runner-os)}}
@@ -98,6 +100,7 @@ jobs:
       GRADLE_BUILD_ACTION_CACHE_KEY_JOB_EXECUTION: ${{github.sha}}_2
     needs: restore-cc-verify-build-groovy
     strategy:
+      max-parallel: 1
       fail-fast: false
       matrix:
         os: ${{fromJSON(inputs.runner-os)}}
@@ -138,6 +141,7 @@ jobs:
       GRADLE_BUILD_ACTION_CACHE_KEY_JOB_EXECUTION: ${{github.sha}}_x
     needs: restore-cc-seed-build-groovy
     strategy:
+      max-parallel: 1
       fail-fast: false
       matrix:
         os: ${{fromJSON(inputs.runner-os)}}
@@ -169,6 +173,7 @@ jobs:
     env:
       GRADLE_BUILD_ACTION_CACHE_KEY_JOB: restore-cc-kotlin
     strategy:
+      max-parallel: 1
       fail-fast: false
       matrix:
         os: ${{fromJSON(inputs.runner-os)}}
@@ -201,6 +206,7 @@ jobs:
       GRADLE_BUILD_ACTION_CACHE_KEY_JOB_EXECUTION: ${{github.sha}}_1
     needs: restore-cc-seed-build-kotlin
     strategy:
+      max-parallel: 1
       fail-fast: false
       matrix:
         os: ${{fromJSON(inputs.runner-os)}}
@@ -233,6 +239,7 @@ jobs:
       GRADLE_BUILD_ACTION_CACHE_KEY_JOB_EXECUTION: ${{github.sha}}_2
     needs: restore-cc-modify-build-kotlin
     strategy:
+      max-parallel: 1
       fail-fast: false
       matrix:
         os: ${{fromJSON(inputs.runner-os)}}

.github/workflows/integ-test-restore-gradle-home.yml

@@ -21,6 +21,7 @@ env:
 jobs:
   restore-gradle-home-seed-build:
     strategy:
+      max-parallel: 1
       fail-fast: false
       matrix:
         os: ${{fromJSON(inputs.runner-os)}}
@@ -43,6 +44,7 @@ jobs:
   restore-gradle-home-dependencies-cache:
     needs: restore-gradle-home-seed-build
     strategy:
+      max-parallel: 1
       fail-fast: false
       matrix:
         os: ${{fromJSON(inputs.runner-os)}}
@@ -65,6 +67,7 @@ jobs:
   restore-gradle-home-build-cache:
     needs: restore-gradle-home-seed-build
     strategy:
+      max-parallel: 1
       fail-fast: false
       matrix:
         os: ${{fromJSON(inputs.runner-os)}}
@@ -87,6 +90,7 @@ jobs:
   restore-gradle-home-no-extracted-cache-entries-restored:
     needs: restore-gradle-home-seed-build
     strategy:
+      max-parallel: 1
       fail-fast: false
       matrix:
         os: ${{fromJSON(inputs.runner-os)}}
@@ -111,6 +115,7 @@ jobs:
   restore-gradle-home-pre-existing-gradle-home:
     needs: restore-gradle-home-seed-build
     strategy:
+      max-parallel: 1
       fail-fast: false
       matrix:
         os: ${{fromJSON(inputs.runner-os)}}

.github/workflows/integ-test-restore-java-toolchain.yml

@@ -20,6 +20,7 @@ env:
 jobs:
   restore-java-toolchain-seed-build:
     strategy:
+      max-parallel: 1
       fail-fast: false
       matrix:
         os: ${{fromJSON(inputs.runner-os)}}
@@ -42,6 +43,7 @@ jobs:
   restore-java-toolchain-verify-build:
     needs: restore-java-toolchain-seed-build
     strategy:
+      max-parallel: 1
       fail-fast: false
       matrix:
         os: ${{fromJSON(inputs.runner-os)}}

.github/workflows/integ-test-sample-gradle-plugin.yml

@@ -20,6 +20,7 @@ env:
 jobs:
   sample-gradle-plugin-seed-build:
     strategy:
+      max-parallel: 1
       fail-fast: false
       matrix:
         os: ${{fromJSON(inputs.runner-os)}}
@@ -41,6 +42,7 @@ jobs:
   sample-gradle-plugin-verify-build:
     needs: sample-gradle-plugin-seed-build
     strategy:
+      max-parallel: 1
       fail-fast: false
       matrix:
         os: ${{fromJSON(inputs.runner-os)}}

.github/workflows/integ-test-sample-kotlin-dsl.yml

@@ -20,6 +20,7 @@ env:
 jobs:
   sample-kotlin-dsl-seed-build:
     strategy:
+      max-parallel: 1
       fail-fast: false
       matrix:
         os: ${{fromJSON(inputs.runner-os)}}
@@ -41,6 +42,7 @@ jobs:
   sample-kotlin-dsl-verify-build:
     needs: sample-kotlin-dsl-seed-build
     strategy:
+      max-parallel: 1
       fail-fast: false
       matrix:
         os: ${{fromJSON(inputs.runner-os)}}