Squashed initial commit

.gitignore

@@ -0,0 +1,4 @@
+build_id
+build_log
+image/
+secrets/

Makefile

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+include config.mk
+
+.DEFAULT_GOAL := all
+
+# Disabled due to https://github.com/containers/buildah/issues/5581
+#REPO_STAMP := push-stamp
+#REPO_PATH := repo/
+#REPO_STAMPS := $(addsuffix /${REPO_STAMP},${CONTAINERS})
+#
+#%/${REPO_STAMP}: %/${BUILD_ID_OUT}
+#	@mkdir -p ${REPO_PATH}
+#	buildah push \
+#		-f oci \
+#		--compression-format zstd \
+#		--compression-level 10 \
+#		$(shell cat $<) \
+#		oci:${REPO_PATH}:$*:latest
+#	touch $@
+
+MANIFEST_FILE = ${IMAGE_DIR}/manifest.json
+
+# Autogenerated lists
+CONTAINERS := $(shell find ./ -name 'Containerfile' -exec 'dirname' '{}' ';' | cut -d'/' -f2-)
+IMAGE_DIRS := $(addsuffix /${IMAGE_DIR},${CONTAINERS})
+BUILD_IDS := $(addsuffix /${BUILD_ID_OUT},${CONTAINERS})
+BUILD_LOGS := $(addsuffix /${BUILD_LOG},${CONTAINERS})
+MANIFESTS := $(addsuffix /${MANIFEST_FILE},${CONTAINERS})
+
+# Make workaround
+# Inserting literal commas into function calls without interpreting them as delimiters
+, := ,
+
+# Build all containers in order by default
+all: unified
+
+unified: $(MANIFESTS) # $(REPO_STAMPS)
+localbuild: $(BUILD_IDS)
+
+# Build process
+%/${MANIFEST_FILE}: %/${BUILD_ID_OUT}
+	@mkdir -p $*/${IMAGE_DIR}
+	buildah push \
+		-f oci \
+		$(shell cat $<) \
+		dir:$*/${IMAGE_DIR}
+
+%/${BUILD_ID_OUT}: %/Containerfile
+	buildah build \
+		--jobs 0 \
+		--network=none \
+		--logfile=$*/${BUILD_LOG} \
+		-t $*:latest \
+		--iidfile $@ \
+		$(foreach secretpath,$(wildcard $*/secrets/*),\
+			--secret id=$(patsubst $*/secrets/%,%,${secretpath})$(,)src=${secretpath}) \
+		$*
+
+# Clean up
+clean: cleanbuild cleandirs
+
+cleanbuild:
+	-rm -rv ${BUILD_IDS}
+
+cleandirs:
+	-rm -rv ${IMAGE_DIRS}
+
+.PHONY: all clean cleanbuild cleandirs localbuild unified
+.SUFFIXES:
+
+# Somehow GNU make forgets these are intermediates if not explicitly stated, feel free to look into it *shrug*
+.SECONDARY: $(BUILD_IDS)

config.mk

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+IMAGE_DIR := image
+BUILD_ID_OUT := build_id
+BUILD_LOG := build_log
+
+include */config.mk