Added docker deployment

scripts/build-and-push.sh

@@ -0,0 +1,72 @@
+#!/usr/bin/env bash
+# Build a multi-arch (linux/amd64, linux/arm64) image and push it to a registry.
+#
+# Required:
+#   MESHBOT_IMAGE   Full image reference, e.g. registry.example.com/team/meshbot
+#
+# 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: meshbot-builder, auto-created)
+
+set -euo pipefail
+
+if [[ -z "${MESHBOT_IMAGE:-}" ]]; then
+  echo "error: MESHBOT_IMAGE is required (e.g. registry.example.com/team/meshbot)" >&2
+  exit 1
+fi
+
+PLATFORMS="${PLATFORMS:-linux/amd64,linux/arm64}"
+PUSH="${PUSH:-1}"
+BUILDER="${BUILDER:-meshbot-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 "${MESHBOT_IMAGE}:latest" --tag "${MESHBOT_IMAGE}:${GIT_SHA}")
+for t in ${EXTRA_TAGS:-}; do
+  TAGS+=(--tag "${MESHBOT_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 ${MESHBOT_IMAGE} (${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 ${MESHBOT_IMAGE} for ${PLATFORMS} (local load, no push)"
+fi
+
+docker buildx build \
+  --platform "${PLATFORMS}" \
+  "${TAGS[@]}" \
+  "${OUTPUT_FLAG[@]}" \
+  --file Dockerfile \
+  .
+
+echo ">>> done"