generated docker bake file

vars/buildDockerAndPublishImage.groovy

@@ -23,6 +23,7 @@ def call(String imageShortName, Map userConfig=[:]) {
 
   // Retrieve Library's Static File Resources
   final String makefileContent = libraryResource 'io/jenkins/infra/docker/Makefile'
+  final String bakefileContent = libraryResource 'io/jenkins/infra/docker/docker-bake.hcl'
   final boolean semVerEnabledOnPrimaryBranch = finalConfig.automaticSemanticVersioning && env.BRANCH_IS_PRIMARY
 
   // Only run 1 build at a time on primary branch to ensure builds won't use the same tag when semantic versionning is activated
@@ -73,6 +74,8 @@ def call(String imageShortName, Map userConfig=[:]) {
           // The makefile to use must come from the pipeline to avoid a nasty user trying to exfiltrate data from the build
           // Even though we have mitigation through the multibranch job config allowing to build PRs only from the repository contributors
           writeFile file: 'Makefile', text: makefileContent
+
+          writeFile file: 'docker-bake.override.hcl', text: bakefileContent
         } // stage
 
         // Automatic tagging on principal branch is not enabled by default, show potential next version in PR anyway
@@ -144,7 +147,15 @@ def call(String imageShortName, Map userConfig=[:]) {
             if (finalConfig.dockerBakeFile != '') {
               sh 'make buildbake'
             } else {
-              sh 'make build'
+              if (cstConfigSuffix == "") {
+                //linux ==> generated docker bake
+                env.PLATFORMS=finalConfig.platform
+                env.DOCKER_BAKE_FILE='docker-bake.override.hcl'
+                sh 'env && make buildbake'
+              } else {
+                // still used for windows
+                sh 'make build'
+              }
             }
           } else {
             if (finalConfig.dockerBakeFile != '') {