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Merge pull request #7357 from Ant1x/feature/opentsdb-tags
OpenTsdbWriter - Custom Tag Support
This commit is contained in:
Michael Friedrich
GitHub
commit
1a503b554b
@ -1727,6 +1727,9 @@ Configuration Attributes:
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host | String | **Optional.** OpenTSDB host address. Defaults to `127.0.0.1`.
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port | Number | **Optional.** OpenTSDB port. Defaults to `4242`.
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enable\_ha | Boolean | **Optional.** Enable the high availability functionality. Only valid in a [cluster setup](06-distributed-monitoring.md#distributed-monitoring-high-availability-features). Defaults to `false`.
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enable_generic_metrics | Boolean | **Optional.** Re-use metric names to store different perfdata values for a particular check. Use tags to distinguish perfdata instead of metric name. Defaults to `false`.
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host_template | Dictionary | **Optional.** Specify additional tags to be included with host metrics. This requires a sub-dictionary named `tags`. Also specify a naming prefix by setting `metric`. More information can be found in [OpenTSDB custom tags](14-features.md#opentsdb-custom-tags) and [OpenTSDB Metric Prefix](14-features.md#opentsdb-metric-prefix). More information can be found in [OpenTSDB custom tags](14-features.md#opentsdb-custom-tags). Defaults to an `empty Dictionary`.
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service_template | Dictionary | **Optional.** Specify additional tags to be included with service metrics. This requires a sub-dictionary named `tags`. Also specify a naming prefix by setting `metric`. More information can be found in [OpenTSDB custom tags](14-features.md#opentsdb-custom-tags) and [OpenTSDB Metric Prefix](14-features.md#opentsdb-metric-prefix). Defaults to an `empty Dictionary`.
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### PerfdataWriter <a id="objecttype-perfdatawriter"></a>
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@ -618,20 +618,33 @@ You can enable the feature using
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By default the `OpenTsdbWriter` object expects the TSD to listen at
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`127.0.0.1` on port `4242`.
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The current naming schema is
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The current default naming schema is:
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```
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icinga.host.<metricname>
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icinga.service.<servicename>.<metricname>
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icinga.host.<perfdata_metric_label>
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icinga.service.<servicename>.<perfdata_metric_label>
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```
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for host and service checks. The tag host is always applied.
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for host and service checks. The tag `host` is always applied.
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Icinga also sends perfdata warning, critical, minimum and maximum threshold values to OpenTSDB.
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These are stored as new OpenTSDB metric names appended with `_warn`, `_crit`, `_min`, `_max`.
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Values are only stored when the corresponding threshold exists in Icinga's perfdata.
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Example:
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```
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icinga.service.<servicename>.<perfdata_metric_label>
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icinga.service.<servicename>.<perfdata_metric_label>._warn
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icinga.service.<servicename>.<perfdata_metric_label>._crit
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icinga.service.<servicename>.<perfdata_metric_label>._min
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icinga.service.<servicename>.<perfdata_metric_label>._max
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```
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To make sure Icinga 2 writes a valid metric into OpenTSDB some characters are replaced
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with `_` in the target name:
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```
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\ (and space)
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\ : (and space)
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```
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The resulting name in OpenTSDB might look like:
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@ -676,6 +689,167 @@ with the following tags
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> You might want to set the tsd.core.auto_create_metrics setting to `true`
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> in your opentsdb.conf configuration file.
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#### OpenTSDB Metric Prefix <a id="opentsdb-metric-prefix"></a>
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Functionality exists to modify the built in OpenTSDB metric names that the plugin
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writes to. By default this is `icinga.host` and `icinga.service.<servicename>`.
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These prefixes can be modified as necessary to any arbitary string. The prefix
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configuration also supports Icinga macros, so if you rather use `<checkcommand>`
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or any other variable instead of `<servicename>` you may do so.
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To configure OpenTSDB metric name prefixes, create or modify the `host_template` and/or
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`service_template` blocks in the `opentsdb.conf` file, to add a `metric` definition.
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These modifications go hand in hand with the **OpenTSDB Custom Tag Support** detailed below,
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and more information around macro use can be found there.
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Additionally, using custom Metric Prefixes or your own macros in the prefix may be
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helpful if you are using the **OpenTSDB Generic Metric** functionality detailed below.
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An example configuration which includes prefix name modification:
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```
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object OpenTsdbWriter "opentsdb" {
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host = "127.0.0.1"
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port = 4242
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host_template = {
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metric = "icinga.myhost"
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tags = {
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location = "$host.vars.location$"
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checkcommand = "$host.check_command$"
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}
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}
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service_template = {
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metric = "icinga.service.$service.check_command$"
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}
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}
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```
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The above configuration will output the following naming schema:
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```
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icinga.myhost.<perfdata_metric_label>
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icinga.service.<check_command_name>.<perfdata_metric_label>
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```
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Note how `<perfdata_metric_label>` is always appended in the default naming schema mode.
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#### OpenTSDB Generic Metric Naming Schema <a id="opentsdb-generic-metrics"></a>
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An alternate naming schema (`Generic Metrics`) is available where OpenTSDB metric names are more generic
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and do not include the Icinga perfdata label in the metric name. Instead,
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perfdata labels are stored in a tag `label` which is stored along with each perfdata value.
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This ultimately reduces the number of unique OpenTSDB metric names which may make
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querying aggregate data easier. This also allows you to store all perfdata values for a
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particular check inside one OpenTSDB metric name for each check.
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This alternate naming schema can be enabled by setting the following in the OpenTSDBWriter config:
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`enable_generic_metrics = true`
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> **Tip**
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> Consider using `Generic Metrics` along with the **OpenTSDB Metric Prefix** naming options
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> described above
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An example of this naming schema when compared to the default is:
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```
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icinga.host
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icinga.service.<servicename>
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```
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> **Note**
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> Note how `<perfdata_metric_label>` does not appear in the OpenTSDB metric name
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> when using `Generic Metrics`. Instead, a new tag `label` appears on each value written
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> to OpenTSDB which contains the perfdata label.
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#### Custom Tags <a id="opentsdb-custom-tags"></a>
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In addition to the default tags listed above, it is possible to send
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your own custom tags with your data to OpenTSDB.
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Note that custom tags are sent **in addition** to the default hostname,
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type and service name tags. If you do not include this section in the
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config file, no custom tags will be included.
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Custom tags can be custom attributes or built in attributes.
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Consider a host object:
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```
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object Host "my-server1" {
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address = "10.0.0.1"
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check_command = "hostalive"
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vars.location = "Australia"
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}
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```
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and a service object:
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```
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object Service "ping" {
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host_name = "localhost"
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check_command = "my-ping"
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vars.ping_packets = 10
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}
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```
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It is possible to send `vars.location` and `vars.ping_packets` along
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with performance data. Additionally, any other attribute can be sent
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as a tag, such as `check_command`.
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You can make use of the `host_template` and `service_template` blocks
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in the `opentsdb.conf` configuration file.
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An example OpenTSDB configuration file which makes use of custom tags:
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```
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object OpenTsdbWriter "opentsdb" {
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host = "127.0.0.1"
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port = 4242
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host_template = {
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tags = {
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location = "$host.vars.location$"
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checkcommand = "$host.check_command$"
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}
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}
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service_template = {
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tags = {
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location = "$host.vars.location$"
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pingpackets = "$service.vars.ping_packets$"
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checkcommand = "$service.check_command$"
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}
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}
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}
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```
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Depending on what keyword the macro begins with, will determine what
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attributes are available in the macro context. The below table explains
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what attributes are available with links to each object type.
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start of macro | description
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---------------|------------------------------------------
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\$host...$ | Attributes available on a [Host object](09-object-types.md#objecttype-host)
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\$service...$ | Attributes available on a [Service object](09-object-types.md#objecttype-service)
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\$icinga...$ | Attributes available on the [IcingaApplication object](09-object-types.md#icingaapplication)
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> **Note**
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>
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> Ensure you do not name your custom attributes with a dot in the name.
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> Dots located inside a macro tell the interpreter to expand a
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> dictionary.
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>
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> Do not do this in your object configuration:
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>
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> `vars["my.attribute"]`
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>
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> as you will be unable to reference `my.attribute` because it is not a
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> dictionary.
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>
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> Instead, use underscores or another character:
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>
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> `vars.my_attribute` or `vars["my_attribute"]`
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#### OpenTSDB in Cluster HA Zones <a id="opentsdb-writer-cluster-ha"></a>
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The OpenTSDB feature supports [high availability](06-distributed-monitoring.md#distributed-monitoring-high-availability-features)
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@ -6,4 +6,20 @@
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object OpenTsdbWriter "opentsdb" {
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//host = "127.0.0.1"
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//port = 4242
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//enable_generic_metrics = false
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// Custom Tagging, refer to Icinga object type documentation for
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// OpenTsdbWriter
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//host_template = {
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// metric = "icinga.host"
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// tags = {
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// zone = "$host.zone$"
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// }
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//}
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//service_template = {
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// metric = "icinga.service.$service.check_command$"
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// tags = {
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// zone = "$service.zone$"
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// }
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//}
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}
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@ -73,6 +73,8 @@ void OpenTsdbWriter::Resume()
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Log(LogInformation, "OpentsdbWriter")
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<< "'" << GetName() << "' resumed.";
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ReadConfigTemplate(m_ServiceConfigTemplate, m_HostConfigTemplate);
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m_ReconnectTimer = new Timer();
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m_ReconnectTimer->SetInterval(10);
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m_ReconnectTimer->OnTimerExpired.connect(std::bind(&OpenTsdbWriter::ReconnectTimerHandler, this));
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@ -151,28 +153,104 @@ void OpenTsdbWriter::CheckResultHandler(const Checkable::Ptr& checkable, const C
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Service::Ptr service = dynamic_pointer_cast<Service>(checkable);
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Host::Ptr host;
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Dictionary::Ptr config_tmpl;
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Dictionary::Ptr config_tmpl_tags;
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String config_tmpl_metric;
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if (service)
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if (service) {
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host = service->GetHost();
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else
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config_tmpl = m_ServiceConfigTemplate;
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}
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else {
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host = static_pointer_cast<Host>(checkable);
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config_tmpl = m_HostConfigTemplate;
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}
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// Get the tags nested dictionary in the service/host template in the config
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if (config_tmpl) {
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config_tmpl_tags = config_tmpl->Get("tags");
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config_tmpl_metric = config_tmpl->Get("metric");
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}
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String metric;
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std::map<String, String> tags;
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// Resolve macros in configuration template and build custom tag list
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if (config_tmpl_tags || !config_tmpl_metric.IsEmpty()) {
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// Configure config template macro resolver
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MacroProcessor::ResolverList resolvers;
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if (service)
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resolvers.emplace_back("service", service);
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resolvers.emplace_back("host", host);
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resolvers.emplace_back("icinga", IcingaApplication::GetInstance());
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// Resolve macros for the service and host template config line
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if (config_tmpl_tags) {
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ObjectLock olock(config_tmpl_tags);
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for (const Dictionary::Pair& pair : config_tmpl_tags) {
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String missing_macro;
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Value value = MacroProcessor::ResolveMacros(pair.second, resolvers, cr, &missing_macro);
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if (!missing_macro.IsEmpty()) {
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Log(LogDebug, "OpenTsdbWriter")
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<< "Unable to resolve macro:'" << missing_macro
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<< "' for this host or service.";
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continue;
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}
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String tagname = Convert::ToString(pair.first);
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tags[tagname] = EscapeTag(value);
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}
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}
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// Resolve macros for the metric config line
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if (!config_tmpl_metric.IsEmpty()) {
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String missing_macro;
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Value value = MacroProcessor::ResolveMacros(config_tmpl_metric, resolvers, cr, &missing_macro);
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if (!missing_macro.IsEmpty()) {
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Log(LogDebug, "OpenTsdbWriter")
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<< "Unable to resolve macro:'" << missing_macro
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<< "' for this host or service.";
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}
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else {
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config_tmpl_metric = Convert::ToString(value);
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}
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}
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}
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String escaped_hostName = EscapeTag(host->GetName());
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tags["host"] = escaped_hostName;
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double ts = cr->GetExecutionEnd();
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if (service) {
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String serviceName = service->GetShortName();
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String escaped_serviceName = EscapeMetric(serviceName);
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metric = "icinga.service." + escaped_serviceName;
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if (!config_tmpl_metric.IsEmpty()) {
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metric = config_tmpl_metric;
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} else {
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String serviceName = service->GetShortName();
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String escaped_serviceName = EscapeMetric(serviceName);
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metric = "icinga.service." + escaped_serviceName;
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}
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SendMetric(checkable, metric + ".state", tags, service->GetState(), ts);
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} else {
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metric = "icinga.host";
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if (!config_tmpl_metric.IsEmpty()) {
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metric = config_tmpl_metric;
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} else {
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metric = "icinga.host";
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}
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SendMetric(checkable, metric + ".state", tags, host->GetState(), ts);
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}
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@ -236,20 +314,32 @@ void OpenTsdbWriter::SendPerfdata(const Checkable::Ptr& checkable, const String&
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continue;
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}
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}
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String metric_name;
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std::map<String, String> tags_new = tags;
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String escaped_key = EscapeMetric(pdv->GetLabel());
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boost::algorithm::replace_all(escaped_key, "::", ".");
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// Do not break original functionality where perfdata labels form
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// part of the metric name
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if (!GetEnableGenericMetrics()) {
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String escaped_key = EscapeMetric(pdv->GetLabel());
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boost::algorithm::replace_all(escaped_key, "::", ".");
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metric_name = metric + "." + escaped_key;
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} else {
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String escaped_key = EscapeTag(pdv->GetLabel());
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metric_name = metric;
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tags_new["label"] = escaped_key;
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}
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SendMetric(checkable, metric + "." + escaped_key, tags, pdv->GetValue(), ts);
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SendMetric(checkable, metric_name, tags_new, pdv->GetValue(), ts);
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if (pdv->GetCrit())
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SendMetric(checkable, metric + "." + escaped_key + "_crit", tags, pdv->GetCrit(), ts);
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SendMetric(checkable, metric_name + "_crit", tags_new, pdv->GetCrit(), ts);
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if (pdv->GetWarn())
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SendMetric(checkable, metric + "." + escaped_key + "_warn", tags, pdv->GetWarn(), ts);
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SendMetric(checkable, metric_name + "_warn", tags_new, pdv->GetWarn(), ts);
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if (pdv->GetMin())
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SendMetric(checkable, metric + "." + escaped_key + "_min", tags, pdv->GetMin(), ts);
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SendMetric(checkable, metric_name + "_min", tags_new, pdv->GetMin(), ts);
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if (pdv->GetMax())
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SendMetric(checkable, metric + "." + escaped_key + "_max", tags, pdv->GetMax(), ts);
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SendMetric(checkable, metric_name + "_max", tags_new, pdv->GetMax(), ts);
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}
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}
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@ -316,6 +406,7 @@ String OpenTsdbWriter::EscapeTag(const String& str)
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boost::replace_all(result, " ", "_");
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boost::replace_all(result, "\\", "_");
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boost::replace_all(result, ":", "_");
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return result;
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}
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@ -338,3 +429,86 @@ String OpenTsdbWriter::EscapeMetric(const String& str)
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return result;
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}
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/**
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* Saves the template dictionaries defined in the config file into running memory
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*
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* @param stemplate The dictionary to save the service configuration to
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* @param htemplate The dictionary to save the host configuration to
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*/
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void OpenTsdbWriter::ReadConfigTemplate(const Dictionary::Ptr& stemplate,
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const Dictionary::Ptr& htemplate)
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{
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m_ServiceConfigTemplate = GetServiceTemplate();
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if (!m_ServiceConfigTemplate) {
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Log(LogDebug, "OpenTsdbWriter")
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<< "Unable to locate service template configuration.";
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} else if (m_ServiceConfigTemplate->GetLength() == 0) {
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Log(LogDebug, "OpenTsdbWriter")
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<< "The service template configuration is empty.";
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}
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m_HostConfigTemplate = GetHostTemplate();
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if (!m_HostConfigTemplate) {
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Log(LogDebug, "OpenTsdbWriter")
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<< "Unable to locate host template configuration.";
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} else if (m_HostConfigTemplate->GetLength() == 0) {
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Log(LogDebug, "OpenTsdbWriter")
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<< "The host template configuration is empty.";
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}
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}
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/**
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* Validates the host_template configuration block in the configuration
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* file and checks for syntax errors.
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*
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* @param lvalue The host_template dictionary
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* @param utils Validation helper utilities
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*/
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void OpenTsdbWriter::ValidateHostTemplate(const Lazy<Dictionary::Ptr>& lvalue, const ValidationUtils& utils)
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{
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ObjectImpl<OpenTsdbWriter>::ValidateHostTemplate(lvalue, utils);
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String metric = lvalue()->Get("metric");
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if (!MacroProcessor::ValidateMacroString(metric))
|
||||
BOOST_THROW_EXCEPTION(ValidationError(this, { "host_template", "metric" }, "Closing $ not found in macro format string '" + metric + "'."));
|
||||
|
||||
Dictionary::Ptr tags = lvalue()->Get("tags");
|
||||
if (tags) {
|
||||
ObjectLock olock(tags);
|
||||
for (const Dictionary::Pair& pair : tags) {
|
||||
if (!MacroProcessor::ValidateMacroString(pair.second))
|
||||
BOOST_THROW_EXCEPTION(ValidationError(this, { "host_template", "tags", pair.first }, "Closing $ not found in macro format string '" + pair.second));
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Validates the service_template configuration block in the
|
||||
* configuration file and checks for syntax errors.
|
||||
*
|
||||
* @param lvalue The service_template dictionary
|
||||
* @param utils Validation helper utilities
|
||||
*/
|
||||
void OpenTsdbWriter::ValidateServiceTemplate(const Lazy<Dictionary::Ptr>& lvalue, const ValidationUtils& utils)
|
||||
{
|
||||
ObjectImpl<OpenTsdbWriter>::ValidateServiceTemplate(lvalue, utils);
|
||||
|
||||
String metric = lvalue()->Get("metric");
|
||||
if (!MacroProcessor::ValidateMacroString(metric))
|
||||
BOOST_THROW_EXCEPTION(ValidationError(this, { "service_template", "metric" }, "Closing $ not found in macro format string '" + metric + "'."));
|
||||
|
||||
Dictionary::Ptr tags = lvalue()->Get("tags");
|
||||
if (tags) {
|
||||
ObjectLock olock(tags);
|
||||
for (const Dictionary::Pair& pair : tags) {
|
||||
if (!MacroProcessor::ValidateMacroString(pair.second))
|
||||
BOOST_THROW_EXCEPTION(ValidationError(this, { "service_template", "tags", pair.first }, "Closing $ not found in macro format string '" + pair.second));
|
||||
}
|
||||
}
|
||||
}
|
||||
@ -26,6 +26,9 @@ public:
|
||||
|
||||
static void StatsFunc(const Dictionary::Ptr& status, const Array::Ptr& perfdata);
|
||||
|
||||
void ValidateHostTemplate(const Lazy<Dictionary::Ptr>& lvalue, const ValidationUtils& utils) override;
|
||||
void ValidateServiceTemplate(const Lazy<Dictionary::Ptr>& lvalue, const ValidationUtils& utils) override;
|
||||
|
||||
protected:
|
||||
void OnConfigLoaded() override;
|
||||
void Resume() override;
|
||||
@ -36,6 +39,9 @@ private:
|
||||
|
||||
Timer::Ptr m_ReconnectTimer;
|
||||
|
||||
Dictionary::Ptr m_ServiceConfigTemplate;
|
||||
Dictionary::Ptr m_HostConfigTemplate;
|
||||
|
||||
void CheckResultHandler(const Checkable::Ptr& checkable, const CheckResult::Ptr& cr);
|
||||
void SendMetric(const Checkable::Ptr& checkable, const String& metric,
|
||||
const std::map<String, String>& tags, double value, double ts);
|
||||
@ -45,6 +51,9 @@ private:
|
||||
static String EscapeMetric(const String& str);
|
||||
|
||||
void ReconnectTimerHandler();
|
||||
|
||||
void ReadConfigTemplate(const Dictionary::Ptr& stemplate,
|
||||
const Dictionary::Ptr& htemplate);
|
||||
};
|
||||
|
||||
}
|
||||
|
||||
@ -20,6 +20,16 @@ class OpenTsdbWriter : ConfigObject
|
||||
[config] bool enable_ha {
|
||||
default {{{ return false; }}}
|
||||
};
|
||||
[config] Dictionary::Ptr host_template {
|
||||
default {{{ return new Dictionary(); }}}
|
||||
|
||||
};
|
||||
[config] Dictionary::Ptr service_template {
|
||||
default {{{ return new Dictionary(); }}}
|
||||
};
|
||||
[config] bool enable_generic_metrics {
|
||||
default {{{ return false; }}}
|
||||
};
|
||||
|
||||
[no_user_modify] bool connected;
|
||||
[no_user_modify] bool should_connect {
|
||||
@ -27,4 +37,19 @@ class OpenTsdbWriter : ConfigObject
|
||||
};
|
||||
};
|
||||
|
||||
validator OpenTsdbWriter {
|
||||
Dictionary host_template {
|
||||
String metric;
|
||||
Dictionary "tags" {
|
||||
String "*";
|
||||
};
|
||||
};
|
||||
Dictionary service_template {
|
||||
String metric;
|
||||
Dictionary "tags" {
|
||||
String "*";
|
||||
};
|
||||
};
|
||||
};
|
||||
|
||||
}
|
||||
|
||||
Loading…
x
Reference in New Issue
Block a user