Enable HTTP debug in Firehose client for illustration

It's conditional on a build flag, so it's no-op by default.

Signed-off-by: Ryan Underwood <[email protected]>

Author: runderwo

plugins/out_kinesis_firehose/firehose.c

@@ -44,6 +44,8 @@
 #include "firehose.h"
 #include "firehose_api.h"
 
+int flb_http_client_debug_setup(struct flb_callback *cb_ctx, struct mk_list *props);
+
 static struct flb_aws_header content_type_header = {
     .key = "Content-Type",
     .key_len = 12,
@@ -288,6 +290,10 @@ static int cb_firehose_init(struct flb_output_instance *ins,
     ctx->firehose_client->proxy = NULL;
     ctx->firehose_client->static_headers = &content_type_header;
     ctx->firehose_client->static_headers_len = 1;
+    if (flb_http_client_debug_setup(ctx->firehose_client->http_cb_ctx, &ins->properties) < 0) {
+        flb_plg_error(ctx->ins, "AWS HTTP client debug initialization error");
+        goto error;
+    }
 
     struct flb_upstream *upstream = flb_upstream_create(config, ctx->endpoint,
                                                         ctx->port, FLB_IO_TLS,