add auto-download GeoLite2-Country.mmdb

caddy/Containerfile

@@ -13,6 +13,10 @@ RUN xcaddy build \
 
 FROM docker.io/library/caddy:latest
 
-RUN apk update && apk add --no-cache git git-daemon cgit python3 py3-pygments py3-markdown py3-docutils groff
+RUN apk update && apk add --no-cache git git-daemon cgit python3 py3-pygments py3-markdown py3-docutils groff curl
 
 COPY --from=builder /usr/bin/caddy /usr/bin/caddy
+
+COPY caddy/entrypoint.sh /usr/local/bin/entrypoint.sh
+RUN chmod +x /usr/local/bin/entrypoint.sh
+ENTRYPOINT ["/usr/local/bin/entrypoint.sh"]

caddy/entrypoint.sh

@@ -0,0 +1,38 @@
+#!/bin/sh
+
+GEODB_DIR="/config/geodb"
+GEODB_FILE="$GEODB_DIR/GeoLite2-Country.mmdb"
+GEODB_URL="https://git.io/GeoLite2-Country.mmdb"
+TWO_WEEKS_SECONDS=1209600 # 14 * 24 * 60 * 60
+
+mkdir -p "$GEODB_DIR"
+
+if [ ! -f "$GEODB_FILE" ]; then
+    echo "GeoLite2-Country.mmdb 不存在，正在下载..."
+    curl -sSL "$GEODB_URL" -o "$GEODB_FILE"
+    if [ $? -eq 0 ]; then
+        echo "GeoLite2-Country.mmdb 下载成功."
+    else
+        echo "GeoLite2-Country.mmdb 下载失败."
+    fi
+else
+    # 检查文件修改时间
+    FILE_MOD_TIME=$(stat -c %Y "$GEODB_FILE")
+    CURRENT_TIME=$(date +%s)
+    AGE=$((CURRENT_TIME - FILE_MOD_TIME))
+
+    if [ "$AGE" -ge "$TWO_WEEKS_SECONDS" ]; then
+        echo "GeoLite2-Country.mmdb 已超过两周未更新，正在下载新版本..."
+        curl -sSL "$GEODB_URL" -o "$GEODB_FILE"
+        if [ $? -eq 0 ]; then
+            echo "GeoLite2-Country.mmdb 下载成功."
+        else
+            echo "GeoLite2-Country.mmdb 下载失败."
+        fi
+    else
+        echo "GeoLite2-Country.mmdb 在两周内已更新，跳过下载."
+    fi
+fi
+
+# 执行原始的 Caddy ENTRYPOINT
+exec caddy run --config /etc/caddy/Caddyfile --adapter caddyfile