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is_ready is a self-contained program designed to wait until multiple addresses become accessible. Its purpose is to coordinate the startup of interconnected services, such as Docker containers that rely on one another. This tool does not rely on any external dependencies and can be executed as a standalone binary.
There are alternative solutions like wait-for-it and wait-for. The key differentiating factor of is_ready compared to alternative solutions is its ability to wait for the availability of multiple addresses, not only one. Finally, unlike other options, is_ready stands out as a self-contained binary, eliminating the need for any external dependencies.
is_ready is optimized for running in a Docker container, and it is ideal to wait for the availability of other services such as databases, caches, or other services.
is_ready can be also used as a Docker container using the ghcr.io/stavrospanakakis/is_ready image from GitHub Container Registry.
