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diff --git a/fluent-bit/plugins/out_azure_blob/azure_blob.h b/fluent-bit/plugins/out_azure_blob/azure_blob.h
new file mode 100644
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+++ b/fluent-bit/plugins/out_azure_blob/azure_blob.h
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+/* -*- Mode: C; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+
+/*  Fluent Bit
+ *  ==========
+ *  Copyright (C) 2015-2022 The Fluent Bit Authors
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ */
+
+#ifndef FLB_OUT_AZURE_BLOB_H
+#define FLB_OUT_AZURE_BLOB_H
+
+#include <fluent-bit/flb_output_plugin.h>
+#include <fluent-bit/flb_upstream.h>
+#include <fluent-bit/flb_sds.h>
+
+/* Content-Type */
+#define AZURE_BLOB_CT          "Content-Type"
+#define AZURE_BLOB_CT_NONE     0
+#define AZURE_BLOB_CT_JSON     1 /* application/json */
+#define AZURE_BLOB_CT_GZIP     2 /* application/gzip */
+
+/* Content-Encoding */
+#define AZURE_BLOB_CE          "Content-Encoding"
+#define AZURE_BLOB_CE_NONE     0
+#define AZURE_BLOB_CE_GZIP     1 /* gzip */
+
+/* service endpoint */
+#define AZURE_ENDPOINT_PREFIX  ".blob.core.windows.net"
+
+#define AZURE_BLOB_APPENDBLOB 0
+#define AZURE_BLOB_BLOCKBLOB  1
+
+struct flb_azure_blob {
+    int auto_create_container;
+    int emulator_mode;
+    int compress_gzip;
+    int compress_blob;
+    flb_sds_t account_name;
+    flb_sds_t container_name;
+    flb_sds_t blob_type;
+    flb_sds_t shared_key;
+    flb_sds_t endpoint;
+    flb_sds_t path;
+    flb_sds_t date_key;
+
+    /*
+     * Internal use
+     */
+    int  btype;                  /* blob type */
+    flb_sds_t real_endpoint;
+    flb_sds_t base_uri;
+    flb_sds_t shared_key_prefix;
+
+    /* Shared key */
+    unsigned char *decoded_sk;        /* decoded shared key */
+    size_t decoded_sk_size;           /* size of decoded shared key */
+
+    /* Upstream connection */
+    struct flb_upstream *u;
+    struct flb_output_instance *ins;
+};
+
+#endif