fix: mirror node:20-alpine to Gitea when Docker Hub TLS times out

BuildKit was failing on registry-1.docker.io even when a local base
image existed. CI now prefers a Gitea-hosted NODE_IMAGE and retries
docker build.

infrastructure/STAGING-DEPLOY.md

@@ -300,7 +300,7 @@ On the Windows host, from repo `infrastructure/`:
 | Runner can't register on public IP | Use `http://127.0.0.1:3000` for `--instance` |
 | Variable name rejected in Gitea | No `GITEA_*` / `GITHUB_*` prefixes; use `CLONE_HOST` |
 | `413 Request Entity Too Large` on `docker push` to `https://gitea.wixur.ir/v2/…/blobs/uploads` | Nginx (or Cloudflare) in front of Gitea is rejecting the image layer. **Fix the proxy** (then `nginx -s reload`): in the `server { server_name gitea.wixur.ir; }` block set `client_max_body_size 0;` and `proxy_request_buffering off;` — snippet: [`nginx/windows-gitea.wixur.snippet.conf`](nginx/windows-gitea.wixur.snippet.conf). **Or skip the proxy:** set `REGISTRY_HOST=host.docker.internal:3000` (and Gitea `ROOT_URL`) so CI pushes to `:3000`. If the hostname is orange-clouded on Cloudflare, grey-cloud it (free plan caps uploads at 100MB). |
-| `…-backend:<sha>: not found` / `…-frontend:<sha>: not found` on compose pull | Images were never pushed. `build-and-push` can look green in ~40s because Windows PowerShell ignores `docker` exit codes — check that job’s **Build and push** logs for a real `docker build`/`docker push` failure (often 413 via `gitea.wixur.ir`). Confirm the SHA tag exists under Gitea **Packages**. Prefer `REGISTRY_HOST=host.docker.internal:3000`. Re-run the workflow after the push actually succeeds. |
+| `TLS handshake timeout` to `registry-1.docker.io` / `node:20-alpine` | Docker Hub unreachable from the Windows runner. CI mirrors `node:20-alpine` into Gitea (`<REGISTRY_PREFIX>/node:20-alpine`) and builds from that. If Hub is down **and** the image is not on the machine: on the runner run `docker pull node:20-alpine` when Hub works, then re-run the workflow. Optional Docker Engine `registry-mirrors`. |
 | `docker login` connection refused on `127.0.0.1:3000` | **Docker Desktop on Windows:** set `REGISTRY_HOST=host.docker.internal:3000`, add it to insecure-registries, set Gitea `ROOT_URL=http://host.docker.internal:3000/`. Keep `CLONE_HOST=127.0.0.1:3000` for git. |
 | `docker login` / push denied, redirect to public IP | Set Gitea `ROOT_URL` to a host Docker can reach (`host.docker.internal:3000` on Windows Docker Desktop). |
 | `server gave HTTP response to HTTPS client` | Add registry host to Docker **insecure-registries**, restart Docker |
@@ -331,6 +331,7 @@ docker logs dyolink_frontend_staging --tail 50
 | Path | Role |
 |------|------|
 | `.gitea/workflows/registry-build-deploy.yml` | CI: build, push, deploy |
+| `infrastructure/scripts/ci-resolve-node-image.ps1` | CI: cache `node:20-alpine` on Gitea so builds do not depend on Docker Hub |
 | `infrastructure/docker-compose.registry.yml` | Staging stack (pull-only images) |
 | `infrastructure/deploy.registry.env.example` | Manual deploy env template |
 | `infrastructure/database.staging.env.example` | Postgres secrets template |

infrastructure/scripts/ci-resolve-node-image.ps1

@@ -0,0 +1,68 @@
+# Prefer a Gitea-hosted node:20-alpine so docker build does not HEAD registry-1.docker.io.
+# Order: local Gitea tag → pull Gitea → local Docker Hub tag → pull Hub (retries) → tag/push Gitea.
+param(
+  [Parameter(Mandatory = $true)][string]$RegistryPrefix,
+  [string]$OutFile = '.ci-node-image',
+  [string]$HubImage = 'node:20-alpine'
+)
+
+$ErrorActionPreference = 'Continue'
+$mirror = "$RegistryPrefix/node:20-alpine"
+
+function Test-Image([string]$Name) {
+  docker image inspect $Name 2>&1 | Out-Null
+  return ($LASTEXITCODE -eq 0)
+}
+
+function Invoke-Pull([string]$Name, [int]$Attempts) {
+  for ($i = 1; $i -le $Attempts; $i++) {
+    Write-Host "docker pull $Name (attempt $i/$Attempts)"
+    docker pull $Name
+    if ($LASTEXITCODE -eq 0) { return $true }
+    if ($i -lt $Attempts) { Start-Sleep -Seconds (10 * $i) }
+  }
+  return $false
+}
+
+function Save-Choice([string]$Name) {
+  $utf8 = New-Object System.Text.UTF8Encoding $false
+  [System.IO.File]::WriteAllText((Join-Path (Get-Location) $OutFile), $Name + "`n", $utf8)
+  Write-Host "NODE_IMAGE=$Name"
+}
+
+if (Test-Image $mirror) {
+  Write-Host "Using local $mirror"
+  Save-Choice $mirror
+  exit 0
+}
+
+if (Invoke-Pull $mirror 2) {
+  Save-Choice $mirror
+  exit 0
+}
+
+if (-not (Test-Image $HubImage)) {
+  if (-not (Invoke-Pull $HubImage 5)) {
+    Write-Host "Cannot pull $HubImage from Docker Hub (TLS timeout or blocked)."
+    Write-Host "On the Windows runner, when Hub is reachable:"
+    Write-Host "  docker pull $HubImage"
+    Write-Host "  docker tag $HubImage $mirror"
+    Write-Host "  docker push $mirror"
+    Write-Host "Then re-run this workflow."
+    exit 1
+  }
+}
+
+Write-Host "Tagging $HubImage as $mirror"
+docker tag $HubImage $mirror
+if ($LASTEXITCODE -ne 0) { exit $LASTEXITCODE }
+
+docker push $mirror
+if ($LASTEXITCODE -ne 0) {
+  Write-Host "Could not push $mirror — docker build will use the local tag (legacy builder)."
+  $utf8 = New-Object System.Text.UTF8Encoding $false
+  [System.IO.File]::WriteAllText((Join-Path (Get-Location) '.ci-use-legacy-builder'), "1`n", $utf8)
+}
+
+Save-Choice $mirror
+exit 0