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-rw-r--r--docs/part-2/3_xds-exec.md7
1 files changed, 4 insertions, 3 deletions
diff --git a/docs/part-2/3_xds-exec.md b/docs/part-2/3_xds-exec.md
index 203eb31..504cf01 100644
--- a/docs/part-2/3_xds-exec.md
+++ b/docs/part-2/3_xds-exec.md
@@ -18,10 +18,11 @@ Configuration through environment variables may also be defined in a file that
will be sourced on `xds-exec` start-up. Use `--config|-c` option or set
`XDS_CONFIG` environment variable to specify the config filename.
-Order between options, config file settings and environment variables is :
+So configuration is driven either by environment variables or by command line
+options or using a config file knowning that the following priority order is used:
-1. use option value (for example `-id`)
-1. else use variable `XDS_xxx` (for example `XDS_PROJECT_ID`) when a config file is specified with `--config|-c` option.
+1. use option value (for example use project ID set by `--id` option),
+1. else use variable `XDS_xxx` (for example `XDS_PROJECT_ID` variable) when a config file is specified with `--config|-c` option,
1. else use `XDS_xxx` (for example `XDS_PROJECT_ID`) environment variable
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