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authorLennart Poettering <lennart@poettering.net>2024-05-02 17:07:51 +0200
committerLuca Boccassi <luca.boccassi@gmail.com>2024-05-02 23:33:39 +0200
commitd4ffb37bb1a224f0896d86a8a85d9c3924bc0854 (patch)
treefb31fd62a81ac7123c87475097ace7bb56833ca3 /docs/ENVIRONMENT.md
parentjournal: explicitly sync namespaced journals before stopping socket units (diff)
downloadsystemd-d4ffb37bb1a224f0896d86a8a85d9c3924bc0854.tar.xz
systemd-d4ffb37bb1a224f0896d86a8a85d9c3924bc0854.zip
nspawn, vmspawn, run0: add env var for turning off background tinting
Some people are just sad, sad lost souls who don't like even the tiniest ray of color in their life. Let's add an env var knob for allowing them to turn the background tinting off, to drive the last bit of color from their life so that they can stay in their grey grey life.
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diff --git a/docs/ENVIRONMENT.md b/docs/ENVIRONMENT.md
index 8068d0d33c..5903617296 100644
--- a/docs/ENVIRONMENT.md
+++ b/docs/ENVIRONMENT.md
@@ -705,3 +705,11 @@ Tools using the Varlink protocol (such as `varlinkctl`) or sd-bus (such as
placed in a trusted disk image directory (see above), or if suitable polkit
authentication was acquired. See `systemd.image-policy(7)` for the valid
syntax for image policy strings.
+
+`systemd-run`, `run0`, `systemd-nspawn`, `systemd-vmspawn`:
+
+* `$SYSTEMD_TINT_BACKGROUND` – Takes a boolean. When false the automatic
+ tinting of the background for containers, VMs, and interactive `systemd-run`
+ and `run0` invocations is turned off. Note that this environment variable has
+ no effect if the background color is explicitly selected via the relevant
+ `--background=` switch of the tool.