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Wez Furlong
f8bbacba54
It is sometimes necessary to set environment variables to adjust some early-startup options that need to be applied before enough of the system is ready to read lua policy files. While it is possible to use `systemctl edit SERVICE` and enter systemd-specific directives to configure that, it is not the most convenient thing. What this commit does is introduce 3 new optional files: * /opt/kumomta/etc/kumo-common.env: sourced by kumod and tsa * /opt/kumomta/etc/tsa-daemon.env: sourced by tsa * /opt/kumomta/etc/kumod.env: sourced by kumod The format of these files is `NAME=VALUE` on each line, as per the `EnvironmentFile` docs in systemd. One practical application for this is on an over-committed system where the number of reported cores is larger than the number of available cores. For such a system you will need to configure the `KUMO_AVAILABLE_PARALLELISM` environment variable for each kumo service running on your system. With these environment files you can do that simply by creating `/opt/kumomta/etc/kumo-common.env` with a line like this inside: ``` KUMO_AVAILABLE_PARALLELISM=48 ```