docker: Add build container files

[petitboot] / docker / builder-include

diff --git a/docker/builder-include b/docker/builder-include
new file mode 100644 (file)
index 0000000..40e0120
--- /dev/null
+++ b/docker/builder-include
@@ -0,0 +1,43 @@
+#!/usr/bin/env bash
+
+arch() {
+       local m="$(uname -m)"
+
+       case "${m}" in
+               aarch64) echo "arm64" ;;
+               x86_64)  echo "amd64" ;;
+               *)       echo "${m}" ;;
+       esac
+}
+
+arch_tag() {
+       local a="$(arch)"
+
+       case "${a}" in
+               amd64) echo "" ;;
+               *)     echo "-${a}" ;;
+       esac
+}
+
+run_cmd () {
+       local cmd="${*}"
+
+       if [[ -n ${verbose} || -n "${dry_run}" ]]; then
+               echo "==> ${cmd}"
+       fi
+
+       if [[ -n "${dry_run}" ]]; then
+               true
+       else
+               eval "${cmd}"
+       fi
+}
+
+show_tag () {
+       echo "${DOCKER_TAG}"
+}
+
+: ${VERSION:="1"}
+: ${ARCH_TAG:="$(arch_tag)"}
+: ${DOCKER_NAME:="pb-builder"}
+: ${DOCKER_TAG:="${DOCKER_NAME}:${VERSION}${ARCH_TAG}"}