Remove further unused fips infrastructure (#27900)

* Remove Dockerfile-arm-fips

We don't build fips for arm, as documented in
#10581.

* Stop building buildbox-fips

We do not use this buildbox for anything. This step is failing because
the supporting infrastructure for buildbox-fips was removed in
#26859.

* Fix fips buildbox

BUILDBOX_FIPS was removed, replaced by BUILDBOX_CENTOS7_FIPS.
Unfortunately I missed updating this target in #26859.
This subsequently broke e CI.

(cherry picked from commit 6ef1186)

.drone.yml

@@ -6100,29 +6100,6 @@ steps:
     path: /var/run
   - name: dockerconfig
     path: /root/.docker
-- name: Build and push buildbox-fips
-  image: docker
-  pull: if-not-exists
-  commands:
-  - apk add --no-cache make aws-cli
-  - chown -R $UID:$GID /go
-  - aws ecr get-login-password --profile staging --region=us-west-2 | docker login
-    -u="AWS" --password-stdin 146628656107.dkr.ecr.us-west-2.amazonaws.com
-  - make -C build.assets buildbox-fips
-  - docker tag public.ecr.aws/gravitational/teleport-buildbox-fips:$BUILDBOX_VERSION
-    146628656107.dkr.ecr.us-west-2.amazonaws.com/gravitational/teleport-buildbox-fips:$BUILDBOX_VERSION-$DRONE_COMMIT_SHA
-  - docker push 146628656107.dkr.ecr.us-west-2.amazonaws.com/gravitational/teleport-buildbox-fips:$BUILDBOX_VERSION-$DRONE_COMMIT_SHA
-  - docker logout 146628656107.dkr.ecr.us-west-2.amazonaws.com
-  - aws ecr-public get-login-password --profile production --region=us-east-1 | docker
-    login -u="AWS" --password-stdin public.ecr.aws
-  - docker push public.ecr.aws/gravitational/teleport-buildbox-fips:$BUILDBOX_VERSION
-  volumes:
-  - name: awsconfig
-    path: /root/.aws
-  - name: dockersock
-    path: /var/run
-  - name: dockerconfig
-    path: /root/.docker
 - name: Build and push buildbox-arm
   image: docker
   pull: if-not-exists

build.assets/Makefile

@@ -40,7 +40,6 @@ include grpcbox.mk # Requires images.mk
 # target. The other solution was to remove the 'buildbox' dependency from the 'release' target, but this would
 # make it harder to run `make -C build.assets release` locally as the buildbox would not automatically be built.
 BUILDBOX_NAME=$(BUILDBOX)
-BUILDBOX_FIPS_NAME=$(BUILDBOX_FIPS)
 
 DOCSBOX=ghcr.io/gravitational/docs
 
@@ -466,9 +465,9 @@ release-enterprise:
 # CI should not use this target, it should use named Makefile targets like release-amd64-fips.
 #
 .PHONY:release-fips
-release-fips: buildbox-fips webassets
+release-fips: buildbox-centos7-fips webassets
 	@if [ -z ${VERSION} ]; then echo "VERSION is not set"; exit 1; fi
-	docker run $(DOCKERFLAGS) -i $(NOROOT) $(BUILDBOX_FIPS_NAME) \
+	docker run $(DOCKERFLAGS) -i $(NOROOT) $(BUILDBOX_CENTOS7_FIPS) \
 		/usr/bin/make -C e release -e ADDFLAGS="$(ADDFLAGS)" OS=$(OS) ARCH=$(ARCH) RUNTIME=$(GOLANG_VERSION) FIPS=yes VERSION=$(VERSION) GITTAG=v$(VERSION) REPRODUCIBLE=yes
 
 #

dronegen/buildbox.go

@@ -52,8 +52,8 @@ func buildboxPipelineSteps() []step {
 
 	for _, name := range []string{"buildbox", "buildbox-arm", "buildbox-centos7"} {
 		for _, fips := range []bool{false, true} {
-			// FIPS is unsupported on ARM/ARM64
-			if name == "buildbox-arm" && fips {
+			// FIPS is only supported on centos7
+			if fips && name != "buildbox-centos7" {
 				continue
 			}
 			steps = append(steps, buildboxPipelineStep(name, fips))