docs: Revise README#23
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| Without proper handling, signals like `SIGTERM` might not be forwarded to child processes, | ||
| and zombie processes can accumulate, leading to resource leaks. | ||
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| - **Signal Forwarding:** Intercepts signals like `SIGTERM` and | ||
| `SIGINT` and forwards them to its child process, allowing for | ||
| graceful shutdown. | ||
| - **Zombie Reaping:** Acts as an init process to reap orphaned child | ||
| processes, preventing zombie process accumulation. | ||
| `pid1-rs` solves this by providing: | ||
| - **Graceful Shutdown:** Intercepts the signals `SIGTERM` and `SIGINT`, | ||
| forwarding them to the child process. If the child does not exit within | ||
| a configurable grace period (default: 2s), a `SIGKILL` is sent. | ||
| - **Zombie Reaping:** Acts as an init process to reap orphaned child processes, | ||
| preventing the accumulation of zombie processes. |
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I rewrote this portion, as the "Signal Forwarding" only appears to be applicable to SIGINT + SIGTERM, which is a notable difference from what tini and dumb-init offer (neither of which implements a graceful exit, given the container runtimes tend to provide this already which would conflict).
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tini.Dockerfilesnippet at the end was modified to:alpineversion, that's dated and not providing much value to the reader with a pinned version there.pid1release version from0.1.0(2023), to the0.1.6(2026) release.