build: use gradle image based on jdk-21

README.md

@@ -17,7 +17,7 @@ Runs unit tests, optionally checks scalastyle rules and creates test reports
 | Inputs | Description | Value type | Default value |
 | ------ | ----------- | ---------- | ------------- |
 | `stage` | Stage in CI/CD | `string` | `"test"` |
-| `gradle_version` | Gradle version used in base image | `string` | `"8.8.0"` |
+| `gradle_version` | Gradle version used in base image | `string` | `"8.8"` |
 | `app_root` | Application root folder | `string` | `"."` |
 
 #### Example
@@ -59,7 +59,7 @@ tasks.jacocoTestReport {
 | Inputs | Description | Value type | Default value |
 | ------ | ----------- | ---------- | ------------- |
 | `stage` | Stage in CI/CD | `string` | `"test"` |
-| `gradle_version` | Gradle version used in base image | `string` | `"8.8.0"` |
+| `gradle_version` | Gradle version used in base image | `string` | `"8.8"` |
 | `app_root` | Application root folder | `string` | `"."` |
 
 #### Example
@@ -85,7 +85,7 @@ Generates binaries and libraries for running the application
 | Inputs | Description | Value type | Default value |
 | ------ | ----------- | ---------- | ------------- |
 | `stage` | Stage in CI/CD | `string` | `"build"` |
-| `gradle_version` | Gradle version used in base image | `string` | `"8.8.0"` |
+| `gradle_version` | Gradle version used in base image | `string` | `"8.8"` |
 | `app_root` | Application root folder | `string` | `"."` |
 
 #### Example
@@ -115,7 +115,7 @@ Target registry set up in Gradle configuration
 | Inputs | Description | Value type | Default value |
 | ------ | ----------- | ---------- | ------------- |
 | `stage` | Stage in CI/CD | `string` | `"publish"` |
-| `gradle_version` | Gradle version used in base image | `string` | `"8.8.0"` |
+| `gradle_version` | Gradle version used in base image | `string` | `"8.8"` |
 
 #### Example
 
@@ -144,7 +144,7 @@ Creates and deploys documentation as GitLab pages
 | Inputs | Description | Value type | Default value |
 | ------ | ----------- | ---------- | ------------- |
 | `stage` | Stage in CI/CD | `string` | `"deploy"` |
-| `gradle_version` | Gradle version used in base image | `string` | `"8.8.0"` |
+| `gradle_version` | Gradle version used in base image | `string` | `"8.8"` |
 | `app_root` | Application root folder | `string` | `"."` |
 
 #### Example

templates/base.yml

@@ -3,10 +3,10 @@ spec:
     stage:
       description: "GitLab CI/CD stage"
     jvm_version:
-      default: "jdk22-jammy"
+      default: "jdk21-jammy"
       description: "Version of JVM/OS used in base image"
     gradle_version:
-      default: "8.8.0"
+      default: "8.8"
       description: "Version of gradle used in base image"
     app_root:
       default: "."

templates/build.yml

@@ -3,7 +3,7 @@ spec:
     stage:
       default: "build"
     gradle_version:
-      default: "8.8.0"
+      default: "8.8"
     app_root:
       default: "."
 ---

templates/pages.yml

@@ -3,7 +3,7 @@ spec:
     stage:
       default: "deploy"
     gradle_version:
-      default: "8.8.0"
+      default: "8.8"
     app_root:
       default: "."
 ---

templates/publish-lib.yml

@@ -3,7 +3,7 @@ spec:
     stage:
       default: "publish"
     gradle_version:
-      default: "8.8.0"
+      default: "8.8"
 ---
 include:
   - local: /templates/base.yml

templates/test-coverage.yml

@@ -3,7 +3,7 @@ spec:
     stage:
       default: "test"
     gradle_version:
-      default: "8.8.0"
+      default: "8.8"
     app_root:
       default: "."
 ---

templates/test.yml

@@ -3,7 +3,7 @@ spec:
     stage:
       default: "test"
     gradle_version:
-      default: "8.8.0"
+      default: "8.8"
     app_root:
       default: "."
 ---