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...Connect to a given port using TLS and (optionally) validate for revoked or expired certificates. Run an SSH command on a remote host and check the CPU, Memory, and Disk usage. MySQL. Connect to a MySQL server and run the SHOW STATUS SQL. Redis. Connect to a Redis server and run the PING command. Memcache. Connect to a Memcache server and run the version command or validate a given key/value pair. MongoDB. Connect to a MongoDB server and perform a ping. Kafka. Connect to a Kafka server and perform a list of all topics.

fgprof is a sampling Go profiler that allows you to analyze On-CPU as well as Off-CPU (e.g. I/O) time together. Go's builtin sampling CPU profiler can only show On-CPU time, but it's better than fgprof at that. Go also includes tracing profilers that can analyze I/O, but they can't be combined with the CPU profiler. fgprof is designed for analyzing applications with mixed I/O and CPU workloads. This kind of profiling is also known as wall-clock profiling. If this is the first time you hear about fgprof, you should start by reading about The Problem & How it Works. fgprof is compatible with the go tool pprof visualizer. ...

The MinIO Go Client SDK provides simple APIs to access any Amazon S3-compatible object storage. This quickstart guide will show you how to install the MinIO client SDK, connect to MinIO, and provide a walkthrough for a simple file uploader. For a complete list of APIs and examples, please take a look at the Go Client API Reference.

The purpose of the template is to show how to organize a project and prevent it from turning into spaghetti code, where to store business logic so that it remains independent, clean, and extensible, how not to lose control when a microservice grows. Configuration. First, config.yml is read, then environment variables overwrite the yaml config if they match. The config structure is in the config.go.

...Maximum attempts defaults to 2, and can be changed with --rerun-fails=n. gotestsum supports executing a compiled test binary (created with go test -c) by running it as a custom command. pkgname is the name of the package being tested, it will show up in the test output. ./binary.test is the path to the compiled test binary. The -test.v must be included so that go tool test2json receives all the output. When the --watch flag is set, gotestsum will watch directories using file system notifications.

...Extend them however you need with Oso’s declarative policy language, Polar. Filter: Go beyond yes/no authorization questions. Implement authorization over collections too - e.g., “Show me only the records that Juno can see.” Test: Write unit tests over your authorization logic now that you have a single interface for it. Use the debugger or tracing to track down unexpected behavior. Oso lets you write policies to control who can do what in your app. Select different policies below to see how they change the permissions in the sample app on the right. ...