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# Features {#features} | ||
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* **[Simple configuration](#configuration.examples)**<br> | ||
Configure everything via one [YAML](https://en.wikipedia.org/wiki/YAML) file. Every configuration could also be overwritten via | ||
[environment variables](#configuration.environmentMapping) and the master service could | ||
[receive its command line also from the command line of caretakerd itself](#configuration.dataType.service.Service.command.special-master-handling). | ||
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* **Optimized for containerization**<br> | ||
cratekerd was designed to be a simple and small process supervisor for containerization environment (such as [Docker](https://en.wikipedia.org/wiki/Docker_\(software\))). | ||
It is explicitly not a replacement for host process supervisors like [systemd](https://en.wikipedia.org/wiki/Systemd). | ||
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* **No dependencies**<br> | ||
Just [download the binary](#downloads) and use it. caretakerd is a [fat binary](https://en.wikipedia.org/wiki/Fat_binary) ready to use. | ||
You are not required to install environment with a lot of dependencies like Ruby, Python or Perl - caretakerd is build with [Go](https://en.wikipedia.org/wiki/Go_\(programming_language\)). | ||
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* **Builtin watchdog**<br> | ||
If a service crashes, caretakerd will [restart](#configuration.dataType.service.Service.autoRestart) it for you. | ||
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* **[Custom logging](configuration.dataType.logger.Logger)**<br> | ||
You can log how you want. It is possible to log to [log files](#configuration.dataType.logger.Logger.filename) | ||
per service, to just one log file for all services or also direct to [console](#configuration.dataType.logger.Logger.filename). | ||
Also log rotate based on [max file size](#configuration.dataType.logger.Logger.maxSizeInMb) and [age of](#configuration.dataType.logger.Logger.maxAgeInDays) | ||
log files are builtin. | ||
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* **[Builtin cron](#configuration.dataType.service.CronExpression)**<br> | ||
Execute services when and how often you want. | ||
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* **[Focus on one core service](#configuration.dataType.service.Type)**<br> | ||
There is always one service (the [master](#configuration.dataType.service.Type.master)) | ||
which all other services are life and die together. We expect that this service is the most important one and all other services have to serve him. | ||
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* **[Remote controllable](#configuration.dataType.rpc.Rpc)**<br> | ||
caretakerd could fully controlled via [``caretakerctl``](#commands.caretakerctl) command or | ||
REST calls via encrypted HTTPS. |
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