add KO_DEFAULTBASEIMAGE usage to docs

Signed-off-by: Batuhan Apaydın <batuhan.apaydin@trendyol.com>
ko-build · Nov 24, 2022 · cd87420 · cd87420
1 parent d869cec
commit cd87420
Showing 1 changed file with 6 additions and 0 deletions.
diff --git a/docs/configuration.md b/docs/configuration.md
@@ -20,6 +20,12 @@ You can override this base image in two ways:
 defaultBaseImage: registry.example.com/base/image
 ```
 
+You can also use the `KO_DEFAULTBASEIMAGE` environment variable to set the default base image, which overrides the YAML configuration:
+
+```shell
+KO_DEFAULTBASEIMAGE=registry.example.com/base/image ko build .
+```
+
 2. To override the base image for certain importpaths:
 
 ```yaml