Adding upstream version 1.29.0.upstream/1.29.0

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

6 files changed, 485 insertions, 0 deletions

diff --git a/exporting/aws_kinesis/Makefile.am b/exporting/aws_kinesis/Makefile.am
new file mode 100644
index 000000000..161784b8f
--- /dev/null
+++ b/exporting/aws_kinesis/Makefile.am
@@ -0,0 +1,8 @@
+# SPDX-License-Identifier: GPL-3.0-or-later
+
+AUTOMAKE_OPTIONS = subdir-objects
+MAINTAINERCLEANFILES = $(srcdir)/Makefile.in
+
+dist_noinst_DATA = \
+    README.md \
+    $(NULL)
diff --git a/exporting/aws_kinesis/README.md b/exporting/aws_kinesis/README.md
new file mode 100644
index 000000000..299fec581
--- /dev/null
+++ b/exporting/aws_kinesis/README.md
@@ -0,0 +1,58 @@
+<!--
+title: "Export metrics to AWS Kinesis Data Streams"
+description: "Archive your Agent's metrics to AWS Kinesis Data Streams for long-term storage, further analysis, or correlation with data from other sources."
+custom_edit_url: https://github.com/netdata/netdata/edit/master/exporting/aws_kinesis/README.md
+sidebar_label: AWS Kinesis Data Streams
+-->
+
+# Export metrics to AWS Kinesis Data Streams
+
+## Prerequisites
+
+To use AWS Kinesis for metric collecting and processing, you should first
+[install](https://docs.aws.amazon.com/en_us/sdk-for-cpp/v1/developer-guide/setup.html) AWS SDK for C++.
+`libcrypto`, `libssl`, and `libcurl` are also required to compile Netdata with Kinesis support enabled. Next, Netdata
+should be re-installed from the source. The installer will detect that the required libraries are now available.
+
+If the AWS SDK for C++ is being installed from source, it is useful to set `-DBUILD_ONLY=kinesis`. Otherwise, the
+build process could take a very long time. Note, that the default installation path for the libraries is
+`/usr/local/lib64`. Many Linux distributions don't include this path as the default one for a library search, so it is
+advisable to use the following options to `cmake` while building the AWS SDK:
+
+```sh
+sudo cmake -DCMAKE_INSTALL_PREFIX=/usr -DBUILD_ONLY=kinesis <aws-sdk-cpp sources>
+```
+
+The `-DCMAKE_INSTALL_PREFIX=/usr` option also ensures that
+[third party dependencies](https://github.com/aws/aws-sdk-cpp#third-party-dependencies) are installed in your system
+during the SDK build process.
+
+## Configuration
+
+To enable data sending to the Kinesis service, run `./edit-config exporting.conf` in the Netdata configuration directory
+and set the following options:
+
+```conf
+[kinesis:my_instance]
+    enabled = yes
+    destination = us-east-1
+```
+
+Set the `destination` option to an AWS region.
+
+Set AWS credentials and stream name:
+
+```conf
+    # AWS credentials
+    aws_access_key_id = your_access_key_id
+    aws_secret_access_key = your_secret_access_key
+    # destination stream
+    stream name = your_stream_name
+```
+
+Alternatively, you can set AWS credentials for the `netdata` user using AWS SDK for C++ [standard methods](https://docs.aws.amazon.com/sdk-for-cpp/v1/developer-guide/credentials.html).
+
+Netdata automatically computes a partition key for every record with the purpose to distribute records across
+available shards evenly.
+
+[![analytics](https://www.google-analytics.com/collect?v=1&aip=1&t=pageview&_s=1&ds=github&dr=https%3A%2F%2Fgithub.com%2Fnetdata%2Fnetdata&dl=https%3A%2F%2Fmy-netdata.io%2Fgithub%2Fexporting%2Faws_kinesis%2FREADME&_u=MAC~&cid=5792dfd7-8dc4-476b-af31-da2fdb9f93d2&tid=UA-64295674-3)](<>)
diff --git a/exporting/aws_kinesis/aws_kinesis.c b/exporting/aws_kinesis/aws_kinesis.c
new file mode 100644
index 000000000..036afb49f
--- /dev/null
+++ b/exporting/aws_kinesis/aws_kinesis.c
@@ -0,0 +1,217 @@
+// SPDX-License-Identifier: GPL-3.0-or-later
+
+#include "aws_kinesis.h"
+
+/**
+ * Clean AWS Kinesis *
+ */
+void aws_kinesis_cleanup(struct instance *instance)
+{
+    info("EXPORTING: cleaning up instance %s ...", instance->config.name);
+    kinesis_shutdown(instance->connector_specific_data);
+
+    freez(instance->connector_specific_data);
+
+    struct aws_kinesis_specific_config *connector_specific_config = instance->config.connector_specific_config;
+    if (connector_specific_config) {
+        freez(connector_specific_config->auth_key_id);
+        freez(connector_specific_config->secure_key);
+        freez(connector_specific_config->stream_name);
+
+        freez(connector_specific_config);
+    }
+
+    info("EXPORTING: instance %s exited", instance->config.name);
+    instance->exited = 1;
+}
+
+/**
+ * Initialize AWS Kinesis connector instance
+ *
+ * @param instance an instance data structure.
+ * @return Returns 0 on success, 1 on failure.
+ */
+int init_aws_kinesis_instance(struct instance *instance)
+{
+    instance->worker = aws_kinesis_connector_worker;
+
+    instance->start_batch_formatting = NULL;
+    instance->start_host_formatting = format_host_labels_json_plaintext;
+    instance->start_chart_formatting = NULL;
+
+    if (EXPORTING_OPTIONS_DATA_SOURCE(instance->config.options) == EXPORTING_SOURCE_DATA_AS_COLLECTED)
+        instance->metric_formatting = format_dimension_collected_json_plaintext;
+    else
+        instance->metric_formatting = format_dimension_stored_json_plaintext;
+
+    instance->end_chart_formatting = NULL;
+    instance->end_host_formatting = flush_host_labels;
+    instance->end_batch_formatting = NULL;
+
+    instance->prepare_header = NULL;
+    instance->check_response = NULL;
+
+    instance->buffer = (void *)buffer_create(0);
+    if (!instance->buffer) {
+        error("EXPORTING: cannot create buffer for AWS Kinesis exporting connector instance %s", instance->config.name);
+        return 1;
+    }
+    if (uv_mutex_init(&instance->mutex))
+        return 1;
+    if (uv_cond_init(&instance->cond_var))
+        return 1;
+
+    if (!instance->engine->aws_sdk_initialized) {
+        aws_sdk_init();
+        instance->engine->aws_sdk_initialized = 1;
+    }
+
+    struct aws_kinesis_specific_config *connector_specific_config = instance->config.connector_specific_config;
+    struct aws_kinesis_specific_data *connector_specific_data = callocz(1, sizeof(struct aws_kinesis_specific_data));
+    instance->connector_specific_data = (void *)connector_specific_data;
+
+    if (!strcmp(connector_specific_config->stream_name, "")) {
+        error("stream name is a mandatory Kinesis parameter but it is not configured");
+        return 1;
+    }
+
+    kinesis_init(
+        (void *)connector_specific_data,
+        instance->config.destination,
+        connector_specific_config->auth_key_id,
+        connector_specific_config->secure_key,
+        instance->config.timeoutms);
+
+    return 0;
+}
+
+/**
+ * AWS Kinesis connector worker
+ *
+ * Runs in a separate thread for every instance.
+ *
+ * @param instance_p an instance data structure.
+ */
+void aws_kinesis_connector_worker(void *instance_p)
+{
+    struct instance *instance = (struct instance *)instance_p;
+    struct aws_kinesis_specific_config *connector_specific_config = instance->config.connector_specific_config;
+    struct aws_kinesis_specific_data *connector_specific_data = instance->connector_specific_data;
+
+    while (!instance->engine->exit) {
+        unsigned long long partition_key_seq = 0;
+        struct stats *stats = &instance->stats;
+
+        uv_mutex_lock(&instance->mutex);
+        while (!instance->data_is_ready)
+            uv_cond_wait(&instance->cond_var, &instance->mutex);
+        instance->data_is_ready = 0;
+
+        if (unlikely(instance->engine->exit)) {
+            uv_mutex_unlock(&instance->mutex);
+            break;
+        }
+
+        // reset the monitoring chart counters
+        stats->received_bytes =
+        stats->sent_bytes =
+        stats->sent_metrics =
+        stats->lost_metrics =
+        stats->receptions =
+        stats->transmission_successes =
+        stats->transmission_failures =
+        stats->data_lost_events =
+        stats->lost_bytes =
+        stats->reconnects = 0;
+
+        BUFFER *buffer = (BUFFER *)instance->buffer;
+        size_t buffer_len = buffer_strlen(buffer);
+
+        stats->buffered_bytes = buffer_len;
+
+        size_t sent = 0;
+
+        while (sent < buffer_len) {
+            char partition_key[KINESIS_PARTITION_KEY_MAX + 1];
+            snprintf(partition_key, KINESIS_PARTITION_KEY_MAX, "netdata_%llu", partition_key_seq++);
+            size_t partition_key_len = strnlen(partition_key, KINESIS_PARTITION_KEY_MAX);
+
+            const char *first_char = buffer_tostring(buffer) + sent;
+
+            size_t record_len = 0;
+
+            // split buffer into chunks of maximum allowed size
+            if (buffer_len - sent < KINESIS_RECORD_MAX - partition_key_len) {
+                record_len = buffer_len - sent;
+            } else {
+                record_len = KINESIS_RECORD_MAX - partition_key_len;
+                while (record_len && *(first_char + record_len - 1) != '\n')
+                    record_len--;
+            }
+            char error_message[ERROR_LINE_MAX + 1] = "";
+
+            debug(
+                D_BACKEND,
+                "EXPORTING: kinesis_put_record(): dest = %s, id = %s, key = %s, stream = %s, partition_key = %s, \
+                  buffer = %zu, record = %zu",
+                instance->config.destination,
+                connector_specific_config->auth_key_id,
+                connector_specific_config->secure_key,
+                connector_specific_config->stream_name,
+                partition_key,
+                buffer_len,
+                record_len);
+
+            kinesis_put_record(
+                connector_specific_data, connector_specific_config->stream_name, partition_key, first_char, record_len);
+
+            sent += record_len;
+            stats->transmission_successes++;
+
+            size_t sent_bytes = 0, lost_bytes = 0;
+
+            if (unlikely(kinesis_get_result(
+                    connector_specific_data->request_outcomes, error_message, &sent_bytes, &lost_bytes))) {
+                // oops! we couldn't send (all or some of the) data
+                error("EXPORTING: %s", error_message);
+                error(
+                    "EXPORTING: failed to write data to database backend '%s'. Willing to write %zu bytes, wrote %zu bytes.",
+                    instance->config.destination, sent_bytes, sent_bytes - lost_bytes);
+
+                stats->transmission_failures++;
+                stats->data_lost_events++;
+                stats->lost_bytes += lost_bytes;
+
+                // estimate the number of lost metrics
+                stats->lost_metrics += (collected_number)(
+                    stats->buffered_metrics *
+                    (buffer_len && (lost_bytes > buffer_len) ? (double)lost_bytes / buffer_len : 1));
+
+                break;
+            } else {
+                stats->receptions++;
+            }
+
+            if (unlikely(instance->engine->exit))
+                break;
+        }
+
+        stats->sent_bytes += sent;
+        if (likely(sent == buffer_len))
+            stats->sent_metrics = stats->buffered_metrics;
+
+        buffer_flush(buffer);
+
+        send_internal_metrics(instance);
+
+        stats->buffered_metrics = 0;
+
+        uv_mutex_unlock(&instance->mutex);
+
+#ifdef UNIT_TESTING
+        return;
+#endif
+    }
+
+    aws_kinesis_cleanup(instance);
+}
diff --git a/exporting/aws_kinesis/aws_kinesis.h b/exporting/aws_kinesis/aws_kinesis.h
new file mode 100644
index 000000000..d88a45861
--- /dev/null
+++ b/exporting/aws_kinesis/aws_kinesis.h
@@ -0,0 +1,16 @@
+// SPDX-License-Identifier: GPL-3.0-or-later
+
+#ifndef NETDATA_EXPORTING_KINESIS_H
+#define NETDATA_EXPORTING_KINESIS_H
+
+#include "exporting/exporting_engine.h"
+#include "exporting/json/json.h"
+#include "aws_kinesis_put_record.h"
+
+#define KINESIS_PARTITION_KEY_MAX 256
+#define KINESIS_RECORD_MAX 1024 * 1024
+
+int init_aws_kinesis_instance(struct instance *instance);
+void aws_kinesis_connector_worker(void *instance_p);
+
+#endif //NETDATA_EXPORTING_KINESIS_H
diff --git a/exporting/aws_kinesis/aws_kinesis_put_record.cc b/exporting/aws_kinesis/aws_kinesis_put_record.cc
new file mode 100644
index 000000000..b20ec1373
--- /dev/null
+++ b/exporting/aws_kinesis/aws_kinesis_put_record.cc
@@ -0,0 +1,151 @@
+// SPDX-License-Identifier: GPL-3.0-or-later
+
+#include <aws/core/Aws.h>
+#include <aws/core/client/ClientConfiguration.h>
+#include <aws/core/auth/AWSCredentials.h>
+#include <aws/core/utils/Outcome.h>
+#include <aws/kinesis/KinesisClient.h>
+#include <aws/kinesis/model/PutRecordRequest.h>
+#include "aws_kinesis_put_record.h"
+
+using namespace Aws;
+
+static SDKOptions options;
+
+struct request_outcome {
+    Kinesis::Model::PutRecordOutcomeCallable future_outcome;
+    size_t data_len;
+};
+
+/**
+ * Initialize AWS SDK API
+ */
+void aws_sdk_init()
+{
+    InitAPI(options);
+}
+
+/**
+ * Shutdown AWS SDK API
+ */
+void aws_sdk_shutdown()
+{
+    ShutdownAPI(options);
+}
+
+/**
+ * Initialize a client and a data structure for request outcomes
+ *
+ * @param kinesis_specific_data_p a pointer to a structure with client and request outcome information.
+ * @param region AWS region.
+ * @param access_key_id AWS account access key ID.
+ * @param secret_key AWS account secret access key.
+ * @param timeout communication timeout.
+ */
+void kinesis_init(
+    void *kinesis_specific_data_p, const char *region, const char *access_key_id, const char *secret_key,
+    const long timeout)
+{
+    struct aws_kinesis_specific_data *kinesis_specific_data =
+        (struct aws_kinesis_specific_data *)kinesis_specific_data_p;
+
+    Client::ClientConfiguration config;
+
+    config.region = region;
+    config.requestTimeoutMs = timeout;
+    config.connectTimeoutMs = timeout;
+
+    Kinesis::KinesisClient *client;
+
+    if (access_key_id && *access_key_id && secret_key && *secret_key) {
+        client = New<Kinesis::KinesisClient>("client", Auth::AWSCredentials(access_key_id, secret_key), config);
+    } else {
+        client = New<Kinesis::KinesisClient>("client", config);
+    }
+    kinesis_specific_data->client = (void *)client;
+
+    Vector<request_outcome> *request_outcomes;
+
+    request_outcomes = new Vector<request_outcome>;
+    kinesis_specific_data->request_outcomes = (void *)request_outcomes;
+}
+
+/**
+ * Deallocate Kinesis specific data
+ *
+ * @param kinesis_specific_data_p a pointer to a structure with client and request outcome information.
+ */
+void kinesis_shutdown(void *kinesis_specific_data_p)
+{
+    struct aws_kinesis_specific_data *kinesis_specific_data =
+        (struct aws_kinesis_specific_data *)kinesis_specific_data_p;
+
+    Delete((Kinesis::KinesisClient *)kinesis_specific_data->client);
+    delete (Vector<request_outcome> *)kinesis_specific_data->request_outcomes;
+}
+
+/**
+ * Send data to the Kinesis service
+ *
+ * @param kinesis_specific_data_p a pointer to a structure with client and request outcome information.
+ * @param stream_name the name of a stream to send to.
+ * @param partition_key a partition key which automatically maps data to a specific stream.
+ * @param data a data buffer to send to the stream.
+ * @param data_len the length of the data buffer.
+ */
+void kinesis_put_record(
+    void *kinesis_specific_data_p, const char *stream_name, const char *partition_key, const char *data,
+    size_t data_len)
+{
+    struct aws_kinesis_specific_data *kinesis_specific_data =
+        (struct aws_kinesis_specific_data *)kinesis_specific_data_p;
+    Kinesis::Model::PutRecordRequest request;
+
+    request.SetStreamName(stream_name);
+    request.SetPartitionKey(partition_key);
+    request.SetData(Utils::ByteBuffer((unsigned char *)data, data_len));
+
+    ((Vector<request_outcome> *)(kinesis_specific_data->request_outcomes))->push_back(
+        { ((Kinesis::KinesisClient *)(kinesis_specific_data->client))->PutRecordCallable(request), data_len });
+}
+
+/**
+ * Get results from service responces
+ *
+ * @param request_outcomes_p request outcome information.
+ * @param error_message report error message to a caller.
+ * @param sent_bytes report to a caller how many bytes was successfuly sent.
+ * @param lost_bytes report to a caller how many bytes was lost during transmission.
+ * @return Returns 0 if all data was sent successfully, 1 when data was lost on transmission
+ */
+int kinesis_get_result(void *request_outcomes_p, char *error_message, size_t *sent_bytes, size_t *lost_bytes)
+{
+    Vector<request_outcome> *request_outcomes = (Vector<request_outcome> *)request_outcomes_p;
+    Kinesis::Model::PutRecordOutcome outcome;
+    *sent_bytes = 0;
+    *lost_bytes = 0;
+
+    for (auto request_outcome = request_outcomes->begin(); request_outcome != request_outcomes->end();) {
+        std::future_status status = request_outcome->future_outcome.wait_for(std::chrono::microseconds(100));
+
+        if (status == std::future_status::ready || status == std::future_status::deferred) {
+            outcome = request_outcome->future_outcome.get();
+            *sent_bytes += request_outcome->data_len;
+
+            if (!outcome.IsSuccess()) {
+                *lost_bytes += request_outcome->data_len;
+                outcome.GetError().GetMessage().copy(error_message, ERROR_LINE_MAX);
+            }
+
+            request_outcomes->erase(request_outcome);
+        } else {
+            ++request_outcome;
+        }
+    }
+
+    if (*lost_bytes) {
+        return 1;
+    }
+
+    return 0;
+}
diff --git a/exporting/aws_kinesis/aws_kinesis_put_record.h b/exporting/aws_kinesis/aws_kinesis_put_record.h
new file mode 100644
index 000000000..321baf669
--- /dev/null
+++ b/exporting/aws_kinesis/aws_kinesis_put_record.h
@@ -0,0 +1,35 @@
+// SPDX-License-Identifier: GPL-3.0-or-later
+
+#ifndef NETDATA_EXPORTING_KINESIS_PUT_RECORD_H
+#define NETDATA_EXPORTING_KINESIS_PUT_RECORD_H
+
+#define ERROR_LINE_MAX 1023
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+struct aws_kinesis_specific_data {
+    void *client;
+    void *request_outcomes;
+};
+
+void aws_sdk_init();
+void aws_sdk_shutdown();
+
+void kinesis_init(
+    void *kinesis_specific_data_p, const char *region, const char *access_key_id, const char *secret_key,
+    const long timeout);
+void kinesis_shutdown(void *client);
+
+void kinesis_put_record(
+    void *kinesis_specific_data_p, const char *stream_name, const char *partition_key, const char *data,
+    size_t data_len);
+
+int kinesis_get_result(void *request_outcomes_p, char *error_message, size_t *sent_bytes, size_t *lost_bytes);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif //NETDATA_EXPORTING_KINESIS_PUT_RECORD_H