Files
lorabot/scripts/build-and-push.sh
2026-05-04 20:52:51 +02:00

91 lines
3.1 KiB
Bash
Executable File

#!/usr/bin/env bash
# Build a multi-arch (linux/amd64, linux/arm64) image and push it to a registry.
#
# Required:
# LORABOT_IMAGE Full image reference, e.g. registry.example.com/team/lorabot
#
# Optional:
# PLATFORMS Comma-separated arch list (default: linux/amd64,linux/arm64)
# EXTRA_TAGS Space-separated additional tags to push (e.g. "stable v0.1.0")
# PUSH "1" (default) to push, "0" to build and load locally only
# (note: --load only works with a single platform)
# BUILDER buildx builder name (default: lorabot-builder, auto-created)
set -euo pipefail
if [[ -z "${LORABOT_IMAGE:-}" ]]; then
echo "error: LORABOT_IMAGE is required (e.g. registry.example.com/team/lorabot)" >&2
exit 1
fi
# Preflight: buildx must be installed (it's a separate package on Arch / some
# minimal distros). If it's missing, `docker buildx ...` is parsed by docker as
# `docker ...` with unknown flags, producing a confusing "unknown flag" error.
if ! docker buildx version >/dev/null 2>&1; then
echo "error: docker buildx is not available." >&2
echo " Arch: sudo pacman -S docker-buildx" >&2
echo " Debian/Ubu: sudo apt install docker-buildx-plugin" >&2
echo " Other: https://github.com/docker/buildx#installing" >&2
exit 1
fi
# Preflight: daemon reachable.
if ! docker info >/dev/null 2>&1; then
echo "error: cannot reach the docker daemon (is it running? are you in the 'docker' group?)" >&2
echo " Arch: sudo systemctl start docker" >&2
exit 1
fi
PLATFORMS="${PLATFORMS:-linux/amd64,linux/arm64}"
PUSH="${PUSH:-1}"
BUILDER="${BUILDER:-lorabot-builder}"
cd "$(dirname "$0")/.."
# Compute git-derived tags. Fall back to "dev" if not in a git tree.
if git rev-parse --is-inside-work-tree >/dev/null 2>&1; then
GIT_SHA="$(git rev-parse --short=12 HEAD)"
if [[ -n "$(git status --porcelain)" ]]; then
GIT_SHA="${GIT_SHA}-dirty"
fi
else
GIT_SHA="dev"
fi
TAGS=(--tag "${LORABOT_IMAGE}:latest" --tag "${LORABOT_IMAGE}:${GIT_SHA}")
for t in ${EXTRA_TAGS:-}; do
TAGS+=(--tag "${LORABOT_IMAGE}:${t}")
done
# Make sure a buildx builder exists. Reuse if it's already there.
if ! docker buildx inspect "${BUILDER}" >/dev/null 2>&1; then
echo ">>> creating buildx builder '${BUILDER}'"
docker buildx create --name "${BUILDER}" --driver docker-container --use >/dev/null
else
docker buildx use "${BUILDER}" >/dev/null
fi
docker buildx inspect --bootstrap >/dev/null
OUTPUT_FLAG=()
if [[ "${PUSH}" == "1" ]]; then
OUTPUT_FLAG=(--push)
echo ">>> building & pushing ${LORABOT_IMAGE} (${PLATFORMS}) tags: latest, ${GIT_SHA}${EXTRA_TAGS:+, $EXTRA_TAGS}"
else
# --load only works with a single platform; warn if user requested multi.
if [[ "${PLATFORMS}" == *,* ]]; then
echo "error: PUSH=0 (local --load) only works with a single platform; got '${PLATFORMS}'" >&2
exit 1
fi
OUTPUT_FLAG=(--load)
echo ">>> building ${LORABOT_IMAGE} for ${PLATFORMS} (local load, no push)"
fi
docker buildx build \
--platform "${PLATFORMS}" \
"${TAGS[@]}" \
"${OUTPUT_FLAG[@]}" \
--file Dockerfile \
.
echo ">>> done"