chore: use TOML config with buildx to avoid DockerHub rate limits (#2002)

* fix: use TOML config with buildx to avoid DockerHub rate limits

* empty commit to trigger a new build (the fourth one seems stuck)

* 2 distinct sh calls

Co-authored-by: Damien Duportal <damien.duportal@gmail.com>

---------

Co-authored-by: Damien Duportal <damien.duportal@gmail.com>

Author: lemeurherveCB

Jenkinsfile

@@ -158,8 +158,7 @@ stage('Build') {
                     stage('Multi arch build') {
                         infra.withDockerCredentials {
                             sh '''
-                            docker buildx create --use
-                            docker run --rm --privileged multiarch/qemu-user-static --reset -p yes
+                            make docker-init
                             docker buildx bake --file docker-bake.hcl linux
                             '''
                         }
@@ -182,11 +181,8 @@ stage('Build') {
                                 // Publication is enabled by default, disabled when simulating a LTS
                                 if (env.PUBLISH == 'true') {
                                     infra.withDockerCredentials {
-                                        sh '''
-                                        docker buildx create --use
-                                        docker run --rm --privileged multiarch/qemu-user-static --reset -p yes
-                                        make publish
-                                        '''
+                                        sh 'make docker-init'
+                                        sh 'make publish'
                                     }
                                 }
                             }

Makefile

@@ -39,6 +39,20 @@ check-reqs:
 	@$(call check_cli,curl)
 	@$(call check_cli,jq)
 
+## This function is specific to Jenkins infrastructure and isn't required in other contexts
+docker-init: check-reqs
+ifeq ($(CI),true)
+ifeq ($(wildcard /etc/buildkitd.toml),)
+	echo 'WARNING: /etc/buildkitd.toml not found, using default configuration.'
+	docker buildx create --use --bootstrap --driver docker-container
+else
+	docker buildx create --use --bootstrap --driver docker-container --config /etc/buildkitd.toml
+endif
+else
+	docker buildx create --use --bootstrap --driver docker-container
+endif
+	docker run --rm --privileged multiarch/qemu-user-static --reset -p yes
+
 hadolint:
 	find . -type f -name 'Dockerfile*' -not -path "./bats/*" -print0 | xargs -0 $(ROOT_DIR)/tools/hadolint