Small utiliy that save stdin and stderr of the provided commands to log file with log rotation
jocasta [-c configurationFileWithoutExtension] command arg1 arg2 ... arg
Configuration file can be in JSON, TOML or YAML. By default jocasta will lookup for .jocasta.json, .jocasta.toml or .jocasta.yaml in the current directory. If the -c option is provided, the provided path must be provided without the extension, jocasta will try all compatible extension.
The configuration file can contains six keys with default value. The value can be overrided by a environment variable.
| Key in config file | Environment variable | default value |
|---|---|---|
| out_file | JOCASTA_OUT_FILE | /tmp/jocasta_{CommandName}_stdout.log |
| out_maxsize | JOCASTA_OUT_MAXSIZE | 0 |
| out_backups | JOCASTA_OUT_BACKUPS | 0 |
| err_file | JOCASTA_ERR_FILE | /tmp/jocasta_{CommandName}_stderr.log |
| err_maxsize | JOCASTA_ERR_MAXSIZE | 0 |
| err_backups | JOCASTA_ERR_BACKUPS | 0 |
All keys are prefixed by "out" or "err" that concerns STDOUT and STDERR of the command.
Path to the STDOUT and STDERR log file. The path can contains "{{.App}}" that will be replaced by the command name.
Approximative maximum size of the STDOUT and STDERR log file. The value can be suffixed by kb, mb, gb. The rotation will occurs at the first carriage return after this size is reached to avoid to split a line.
Number of kept rotation files of the STDOUT and STDERR log file. The rotated files will have the name precised by out_file or err_file suffixed by the file number.