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* feat: add dynamic labels support for Prometheus metrics - Add `toBoolPtr` function to convert a bool to a bool pointer - Add `contains` function to check if a key exists in a slice - Add `GetMetricLabels` method to `Config` struct to return unique metric labels from enabled endpoints - Change file permission notation from `0644` to `0o644` in `config_test.go` - Add `Labels` field to `Endpoint` struct for key-value pairs - Initialize Prometheus metrics with dynamic labels from configuration - Modify `PublishMetricsForEndpoint` to include dynamic labels - Add test for `GetMetricLabels` method in `config_test.go` - Update `watchdog` to pass labels to monitoring and execution functions Signed-off-by: appleboy <appleboy.tw@gmail.com> * refactor: refactor pointer conversion utility and update related tests - Rename `toBoolPtr` function to a generic `toPtr` function - Update tests to use the new `toPtr` function instead of `toBoolPtr` Signed-off-by: appleboy <appleboy.tw@gmail.com> * refactor: refactor utility functions and improve test coverage - Move `toPtr` and `contains` utility functions to a new file `util.go` Signed-off-by: appleboy <appleboy.tw@gmail.com> * missing labels parameter * refactor: reorder parameters in metrics-related functions and tests - Reorder parameters in `PublishMetricsForEndpoint` function - Update test cases to match the new parameter order in `PublishMetricsForEndpoint` - Reorder parameters in `monitor` function - Adjust `monitor` function calls to match the new parameter order - Reorder parameters in `execute` function call to `PublishMetricsForEndpoint` Signed-off-by: Bo-Yi Wu <appleboy.tw@gmail.com> * Update main.go * Update config/config.go * docs: improve documentation formatting, examples, and readability - Add multiple blank lines for spacing in the README file - Fix formatting issues in markdown tables - Correct deprecated formatting for Teams alerts - Replace single quotes with double quotes in JSON examples - Add new sections and examples for various configurations and endpoints - Improve readability and consistency in the documentation - Update links and references to examples and configurations Signed-off-by: Bo-Yi Wu <appleboy.tw@gmail.com> * docs: enhance custom labels support in Prometheus metrics - Add a section for custom labels in the README - Include an example configuration for custom labels in Prometheus metrics initialization Signed-off-by: Bo-Yi Wu <appleboy.tw@gmail.com> * refactor: rename and refactor metric labels to use ExtraLabels - Rename the endpoint metric labels field from Labels to ExtraLabels and update its YAML tag accordingly - Update code and tests to use ExtraLabels instead of Labels for metrics - Replace GetMetricLabels with GetUniqueExtraMetricLabels and adjust usages throughout the codebase - Ensure all metric publishing and monitoring functions accept and use the new extraLabels naming and semantics - Update tests to verify correct extraction and handling of ExtraLabels for enabled endpoints Signed-off-by: appleboy <appleboy.tw@gmail.com> * refactor: refactor parameter order for monitor and execute for consistency - Change the order of parameters for monitor and execute functions to group extraLabels consistently as the last argument before context. - Update all relevant function calls and signatures to reflect the new parameter order. - Replace usage of labels with extraLabels for clarity and consistency. Signed-off-by: appleboy <appleboy.tw@gmail.com> * test: improve initialization and labeling of Prometheus metrics - Add a test to verify that Prometheus metrics initialize correctly with extra labels. - Ensure metrics variables are properly initialized and not nil. - Check that WithLabelValues accepts both default and extra labels without causing a panic. Signed-off-by: appleboy <appleboy.tw@gmail.com> * test: improve Prometheus metrics testing for extra label handling - Remove a redundant test for WithLabelValues label length. - Add a new test to verify that extraLabels are correctly included in exported Prometheus metrics. Signed-off-by: appleboy <appleboy.tw@gmail.com> * refactor: refactor metrics to support custom Prometheus registries - Refactor metrics initialization to accept a custom Prometheus registry, defaulting to the global registry when nil - Replace promauto with direct metric construction and explicit registration - Update tests to use dedicated, isolated registries instead of the default global registry Signed-off-by: appleboy <appleboy.tw@gmail.com> * Revert README.md to a previous version * docs: document support for custom metric labels in endpoints - Add documentation section explaining support for custom labels on metrics - Provide YAML configuration example illustrating the new labels field for endpoints - Update table of contents to include the custom labels section Signed-off-by: appleboy <appleboy.tw@gmail.com> --------- Signed-off-by: appleboy <appleboy.tw@gmail.com> Signed-off-by: Bo-Yi Wu <appleboy.tw@gmail.com> Co-authored-by: TwiN <twin@linux.com>