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volumes/snippets/registry-transfer-logging.conf

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+# JSON log format for transfer-only lines
+log_format registry_json escape=json
+'{'
+'"timestamp":"$time_iso8601",'
+'"remote_address":"$remote_addr",'
+'"remote_user":"$remote_user",'
+'"request_id":"$request_id",'
+'"method":"$request_method",'
+'"path":"$uri",'
+'"query_string":"$args",'
+'"http_version":"$server_protocol",'
+'"status":$status,'
+'"bytes_sent":$bytes_sent,'
+'"body_bytes_sent":$body_bytes_sent,'
+'"request_length":$request_length,'
+'"request_time":$request_time,'
+'"upstream_status":"$upstream_status",'
+'"upstream_time":"$upstream_response_time",'
+'"referer":"$http_referer",'
+'"user_agent":"$http_user_agent",'
+'"x_forwarded_for":"$http_x_forwarded_for",'
+'"range":"$http_range",'
+'"docker_content_digest":"$sent_http_docker_content_digest",'
+'"upstream_range":"$upstream_http_range",'
+'"docker_upload_uuid":"$upstream_http_docker_upload_uuid"'
+'}';
+
+map $body_bytes_sent $has_body_bytes_sent {
+    default 0;
+    ~^[1-9][0-9]*$ 1;
+}
+
+map "$request_method$uri" $is_blob_get {
+    default 0;
+    ~^GET/v2/.+/blobs/sha256:[a-f0-9]+$ 1;
+}
+
+map "$is_blob_get$has_body_bytes_sent" $is_pull_transfer {
+    default 0;
+    ~^11$ 1;
+}
+
+map $upstream_http_range $has_upstream_range {
+    default 0;
+    ~^[0-9]+-[0-9]+$ 1;
+}
+
+map "$request_method$uri" $is_upload_patch {
+    default 0;
+    ~^PATCH/v2/.+/blobs/uploads/[a-f0-9-]+$ 1;
+}
+
+map "$is_upload_patch$has_upstream_range" $is_push_transfer {
+    default 0;
+    ~^11$ 1;
+}
+
+map "$is_pull_transfer$is_push_transfer" $is_transfer_loggable {
+    default 0;
+    ~1 1;
+}
+
+map $upstream_http_docker_distribution_api_version $docker_distribution_api_version {
+    '' 'registry/2.0';
+}