add image pull to production

production/README.md

@@ -80,6 +80,10 @@ missing archive automatically if `VPN_CONTAINER` is set:
 VPN_CONTAINER="6c5dca44e1c2" ./deploy-production.sh
 ```
 
+If `VPN_CONTAINER` is not set, the deploy script tries to auto-detect one
+running container with a common VPN name or image such as `vpn`, `gluetun`,
+`wireguard`, `openvpn`, `tailscale`, or `wg-easy`.
+
 Equivalent manual command:
 
 ```bash

production/deploy-production.sh

@@ -102,6 +102,8 @@ fetch_release_archive_through_vpn() {
     return 0
   fi
 
+  detect_vpn_container_if_unset
+
   if [[ -z "${VPN_CONTAINER:-}" ]]; then
     echo "VPN_CONTAINER is required to fetch the image archive through VPN." >&2
     usage >&2
@@ -115,6 +117,60 @@ fetch_release_archive_through_vpn() {
     "${ROOT_DIR}/fetch-image-through-vpn.sh" "${IMAGE_TAG}"
 }
 
+detect_vpn_container_if_unset() {
+  local candidates
+  local candidate_count
+
+  if [[ -n "${VPN_CONTAINER:-}" ]]; then
+    return 0
+  fi
+
+  candidates="$(
+    docker ps --format '{{.ID}} {{.Names}} {{.Image}}' 2>/dev/null \
+      | awk 'BEGIN { IGNORECASE = 1 } /(vpn|gluetun|wireguard|openvpn|tailscale|wg-easy)/ { print $1 }'
+  )"
+
+  candidate_count="$(printf '%s\n' "${candidates}" | sed '/^$/d' | wc -l | tr -d ' ')"
+
+  if [[ "${candidate_count}" == "1" ]]; then
+    VPN_CONTAINER="$(printf '%s\n' "${candidates}" | sed '/^$/d' | sed -n '1p')"
+    export VPN_CONTAINER
+    echo "Auto-detected VPN container: ${VPN_CONTAINER}"
+  fi
+}
+
+ensure_archive_source_ready() {
+  if [[ "${IMAGE_ARCHIVE_DISABLED:-false}" == "true" || "${IMAGE_ARCHIVE_DISABLED:-0}" == "1" ]]; then
+    return 0
+  fi
+
+  if [[ "${IMAGE_ARCHIVE_REQUIRED:-false}" != "true" && "${IMAGE_ARCHIVE_REQUIRED:-0}" != "1" ]]; then
+    return 0
+  fi
+
+  if release_archive_exists; then
+    return 0
+  fi
+
+  detect_vpn_container_if_unset
+
+  if [[ -n "${VPN_CONTAINER:-}" ]]; then
+    echo "No local image archive found; deploy will fetch it through VPN container ${VPN_CONTAINER}."
+    return 0
+  fi
+
+  echo "IMAGE_ARCHIVE_REQUIRED=true and no matching archive exists in ${IMAGE_ARCHIVE_DIR:-<unset>}." >&2
+  echo "Direct docker pull is disabled in this mode, and VPN_CONTAINER is not set." >&2
+  echo "No single VPN container could be auto-detected from common VPN names/images." >&2
+  echo "Find the VPN container with:" >&2
+  echo "  docker ps --format 'table {{.ID}}\t{{.Names}}\t{{.Image}}'" >&2
+  echo "Run one of:" >&2
+  echo "  VPN_CONTAINER=<vpn-container-id-or-name> ./deploy-production.sh --fetch-through-vpn" >&2
+  echo "  VPN_CONTAINER=<vpn-container-id-or-name> ./fetch-image-through-vpn.sh ${IMAGE_TAG}" >&2
+  echo "Or set VPN_CONTAINER in .env.docker.production and rerun ./deploy-production.sh." >&2
+  exit 1
+}
+
 release_archive_exists() {
   local archive_dir="${IMAGE_ARCHIVE_DIR:-}"
 
@@ -385,6 +441,7 @@ ensure_env_file
 load_prod_env_exports
 require_release_image
 normalize_archive_dir
+ensure_archive_source_ready
 print_release_summary
 
 ensure_traefik_network

production/fetch-image-through-vpn.sh

@@ -15,8 +15,17 @@ read_env_value() {
 
   value="$(
     awk -F= -v key="$key" '
-      $1 == key {
-        value = substr($0, index($0, "=") + 1)
+      /^[[:space:]]*#/ || index($0, "=") == 0 {
+        next
+      }
+      {
+        name = $1
+        sub(/^[[:space:]]*export[[:space:]]+/, "", name)
+        gsub(/^[[:space:]]+|[[:space:]]+$/, "", name)
+        if (name == key) {
+          value = substr($0, index($0, "=") + 1)
+          gsub(/^[[:space:]]+|[[:space:]]+$/, "", value)
+        }
       }
       END {
         if (value != "") {

production/scripts/docker-prod-common.sh

@@ -27,8 +27,17 @@ read_env_value() {
 
   value="$(
     awk -F= -v key="$key" '
-      $1 == key {
-        value = substr($0, index($0, "=") + 1)
+      /^[[:space:]]*#/ || index($0, "=") == 0 {
+        next
+      }
+      {
+        name = $1
+        sub(/^[[:space:]]*export[[:space:]]+/, "", name)
+        gsub(/^[[:space:]]+|[[:space:]]+$/, "", name)
+        if (name == key) {
+          value = substr($0, index($0, "=") + 1)
+          gsub(/^[[:space:]]+|[[:space:]]+$/, "", value)
+        }
       }
       END {
         if (value != "") {