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out_influxdb: plug tag keys failure on out influxdb [Backport to 4.2] #11865

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Merged
cosmo0920 merged 2 commits into from
May 28, 2026
Merged

out_influxdb: plug tag keys failure on out influxdb [Backport to 4.2] #11865

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3d38e5f
tests: out_influxdb: Add tag_keys test case
cosmo0920 Apr 16, 2026
2867a26
out_influxdb: Fix incorrect parameter type
cosmo0920 Apr 16, 2026
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2 changes: 1 addition & 1 deletion plugins/out_influxdb/influxdb.c
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Original file line number Diff line number Diff line change
Expand Up @@ -686,7 +686,7 @@ static struct flb_config_map config_map[] = {
},

{
FLB_CONFIG_MAP_BOOL, "tag_keys", NULL,
FLB_CONFIG_MAP_STR, "tag_keys", NULL,
0, FLB_FALSE, 0,
"Space separated list of keys that needs to be tagged."
},
Expand Down
101 changes: 101 additions & 0 deletions tests/runtime/out_influxdb.c
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Original file line number Diff line number Diff line change
Expand Up @@ -170,6 +170,61 @@ static void cb_check_negative_int_as_float_value(
flb_free(out);
}

#define JSON_TAG_KEYS "[12345678, {\"ldap_server\":\"host1\", \"client_ip\":\"10.0.0.1\", \"dn\":\"uid=jdoe\", \"value\":1}]"
static void cb_check_tag_keys(void *ctx, int ffd,
int res_ret, void *res_data, size_t res_size,
void *data)
{
char *p;
flb_sds_t out = res_data;
char *tag_key_1 = ",ldap_server=host1";
char *tag_key_2 = ",client_ip=10.0.0.1";
char *tag_key_3 = ",dn=uid\\=jdoe";
char *field_key = "value=1";
char *missing_field_1 = "ldap_server=\"host1\"";
char *missing_field_2 = "client_ip=\"10.0.0.1\"";
char *missing_field_3 = "dn=\"uid\\=jdoe\"";

set_output_num(1);

p = strstr(out, tag_key_1);
if (!TEST_CHECK(p != NULL)) {
TEST_MSG("Given:%s", out);
}

p = strstr(out, tag_key_2);
if (!TEST_CHECK(p != NULL)) {
TEST_MSG("Given:%s", out);
}

p = strstr(out, tag_key_3);
if (!TEST_CHECK(p != NULL)) {
TEST_MSG("Given:%s", out);
}

p = strstr(out, field_key);
if (!TEST_CHECK(p != NULL)) {
TEST_MSG("Given:%s", out);
}

p = strstr(out, missing_field_1);
if (!TEST_CHECK(p == NULL)) {
TEST_MSG("Given:%s", out);
}

p = strstr(out, missing_field_2);
if (!TEST_CHECK(p == NULL)) {
TEST_MSG("Given:%s", out);
}

p = strstr(out, missing_field_3);
if (!TEST_CHECK(p == NULL)) {
TEST_MSG("Given:%s", out);
}

flb_free(out);
}

void flb_test_basic()
{
int ret;
Expand Down Expand Up @@ -470,6 +525,51 @@ void flb_test_negative_integer_as_float_value()
flb_destroy(ctx);
}

void flb_test_tag_keys()
{
int ret;
int size = sizeof(JSON_TAG_KEYS) - 1;
flb_ctx_t *ctx;
int in_ffd;
int out_ffd;

clear_output_num();

ctx = flb_create();
flb_service_set(ctx, "flush", "1", "grace", "1",
"log_level", "error",
NULL);

in_ffd = flb_input(ctx, (char *) "lib", NULL);
flb_input_set(ctx, in_ffd, "tag", "test", NULL);

out_ffd = flb_output(ctx, (char *) "influxdb", NULL);
flb_output_set(ctx, out_ffd,
"match", "test",
"tag_keys", "ldap_server client_ip dn",
NULL);

ret = flb_output_set_test(ctx, out_ffd, "formatter",
cb_check_tag_keys,
NULL, NULL);

ret = flb_start(ctx);
TEST_CHECK(ret == 0);

ret = flb_lib_push(ctx, in_ffd, (char *) JSON_TAG_KEYS, size);
TEST_CHECK(ret >= 0);

sleep(2);

ret = get_output_num();
if (!TEST_CHECK(ret != 0)) {
TEST_MSG("no output");
}

flb_stop(ctx);
flb_destroy(ctx);
}

/* Test list */
TEST_LIST = {
{"basic" , flb_test_basic },
Expand All @@ -478,5 +578,6 @@ TEST_LIST = {
{"int_negative_integer" , flb_test_negative_integer_value },
{"int_integer_as_float" , flb_test_integer_as_float_value },
{"int_negative_integer_as_float" , flb_test_negative_integer_as_float_value },
{"tag_keys" , flb_test_tag_keys },
{NULL, NULL}
};
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