feat(docker): enhance base image mirroring process and update documentation

- Updated `mirror-base-images.sh` to skip existing tags in Gitea and retry on 429 errors, improving efficiency and reducing unnecessary requests.
- Modified CI workflow to utilize a temporary environment file for mirrored base images, ensuring better handling of existing images.
- Enhanced README documentation to reflect changes in the mirroring process and clarify the behavior when tags already exist.

deploy/docker/README.md

@@ -27,7 +27,7 @@ BuildKit кэширует `/go/pkg/mod`, `~/.cache/go-build` и pnpm store че
 - `git.shx.one/<owner>/evobgp-buildcache:go-buildcache` — **запись** только из `go-build-all`
 - `git.shx.one/<owner>/evobgp-buildcache:web-buildcache` — **запись** только из `web-build`
 - `git.shx.one/<owner>/evobgp-buildcache:birdc-buildcache` — **запись** только из `go-birdc`
-- `git.shx.one/<owner>/evobgp-buildcache:base-*` — зеркало FROM-образов (`mirror-base-images.sh`), без rebuild
+- `git.shx.one/<owner>/evobgp-buildcache:base-*` — зеркало FROM (`mirror-base-images.sh`): только `linux/amd64`, skip если тег уже в Gitea (без повторного pull с ECR / 429). Неуспешный copy не валит CD — bake берёт public FROM для этой базы.
 
 `pull = false` в bake: не перекачивать FROM, если слой уже в builder. Не запускайте `docker system prune -a` на runner.
 

deploy/docker/mirror-base-images.sh

@@ -2,27 +2,80 @@
 # Copy-by-digest зеркало базовых образов в Gitea Container Registry (без rebuild).
 # Требует: docker login в REGISTRY host, docker buildx.
 # REGISTRY=git.shx.one/<owner>  (без суффикса /evobgp-buildcache)
+#
+# Не ходим в public.ecr.aws, если тег уже есть в Gitea (иначе 429 Too Many Requests).
+# Копируем только linux/amd64 — bake platforms совпадает, multi-arch индекс ECR не нужен.
+# Шаг CD не должен падать: неуспешный copy оставляет bake на public FROM для этой базы.
 set -eu
 REGISTRY="${REGISTRY:?REGISTRY required (git.shx.one/<owner>)}"
 CACHE_REPO="${REGISTRY}/evobgp-buildcache"
+ENV_FILE="${MIRROR_ENV_FILE:-}"
+PLATFORM="${MIRROR_PLATFORM:-linux/amd64}"
+RETRIES="${MIRROR_RETRIES:-4}"
+
+tmp="$(mktemp)"
+cleanup() { rm -f "$tmp"; }
+trap cleanup EXIT
+
+dest_exists() {
+  docker buildx imagetools inspect "$1" >/dev/null 2>&1
+}
+
+copy_retry() {
+  src="$1"
+  dest="$2"
+  n=0
+  while [ "$n" -lt "$RETRIES" ]; do
+    n=$((n + 1))
+    if docker buildx imagetools create --platform "$PLATFORM" --tag "$dest" "$src"; then
+      return 0
+    fi
+    delay=$((n * 25))
+    echo "mirror retry ${n}/${RETRIES}, sleep ${delay}s: ${dest}"
+    sleep "$delay"
+  done
+  return 1
+}
 
 mirror() {
   src="$1"
   tag="$2"
-  echo "mirror ${src} -> ${CACHE_REPO}:${tag}"
-  docker buildx imagetools create --tag "${CACHE_REPO}:${tag}" "${src}"
+  var="$3"
+  dest="${CACHE_REPO}:${tag}"
+  if dest_exists "$dest"; then
+    echo "skip (already in registry): ${dest}"
+    printf '%s=%s\n' "$var" "$dest" >>"$tmp"
+    return 0
+  fi
+  echo "mirror ${src} -> ${dest} (${PLATFORM})"
+  if copy_retry "$src" "$dest"; then
+    printf '%s=%s\n' "$var" "$dest" >>"$tmp"
+    return 0
+  fi
+  echo "warn: ${dest} not mirrored — bake uses public FROM for ${var}"
+  return 0
 }
 
-mirror "public.ecr.aws/docker/library/golang:1.24-alpine" "base-golang-1.24-alpine"
-mirror "public.ecr.aws/docker/library/debian:bookworm-slim" "base-debian-bookworm-slim"
-mirror "public.ecr.aws/docker/library/node:22-alpine" "base-node-22-alpine"
-mirror "public.ecr.aws/docker/library/nginx:1.27-alpine" "base-nginx-1.27-alpine"
-mirror "public.ecr.aws/docker/library/ubuntu:noble" "base-ubuntu-noble"
-mirror "gcr.io/distroless/static-debian12:nonroot" "base-distroless-static-debian12-nonroot"
+mirror "public.ecr.aws/docker/library/golang:1.24-alpine" "base-golang-1.24-alpine" BASE_GOLANG
+sleep 8
+mirror "public.ecr.aws/docker/library/debian:bookworm-slim" "base-debian-bookworm-slim" BASE_DEBIAN
+sleep 8
+mirror "public.ecr.aws/docker/library/node:22-alpine" "base-node-22-alpine" BASE_NODE
+sleep 8
+mirror "public.ecr.aws/docker/library/nginx:1.27-alpine" "base-nginx-1.27-alpine" BASE_NGINX
+sleep 8
+mirror "public.ecr.aws/docker/library/ubuntu:noble" "base-ubuntu-noble" BASE_UBUNTU
+sleep 8
+mirror "gcr.io/distroless/static-debian12:nonroot" "base-distroless-static-debian12-nonroot" BASE_DISTROLESS
 
-echo "BASE_GOLANG=${CACHE_REPO}:base-golang-1.24-alpine"
-echo "BASE_DEBIAN=${CACHE_REPO}:base-debian-bookworm-slim"
-echo "BASE_NODE=${CACHE_REPO}:base-node-22-alpine"
-echo "BASE_NGINX=${CACHE_REPO}:base-nginx-1.27-alpine"
-echo "BASE_UBUNTU=${CACHE_REPO}:base-ubuntu-noble"
-echo "BASE_DISTROLESS=${CACHE_REPO}:base-distroless-static-debian12-nonroot"
+echo "----- mirrored BASE_* -----"
+cat "$tmp"
+if [ -n "$ENV_FILE" ]; then
+  env_dir="$(dirname "$ENV_FILE")"
+  if [ -d "$env_dir" ]; then
+    cp "$tmp" "$ENV_FILE"
+    echo "wrote ${ENV_FILE}"
+  else
+    echo "warn: MIRROR_ENV_FILE dir missing (${env_dir}) — skip write"
+  fi
+fi