janhoy commented on a change in pull request #2038:
URL: https://github.com/apache/lucene-solr/pull/2038#discussion_r514559651
##########
File path: solr/contrib/prometheus-exporter/bin/solr-exporter
##########
@@ -135,15 +134,42 @@ if $cygwin; then
[ -n "$REPO" ] && REPO=`cygpath --path --windows "$REPO"`
fi
+# Convert Environment Variables to Command Line Options
+EXPORTER_ARGS=()
+
+if [[ -n "$CONFIG_FILE" ]]; then
+ EXPORTER_ARGS+=(-f "$CONFIG_FILE")
+fi
+
+if [[ -n "$PORT" ]]; then
Review comment:
For a docker env it's not a problem, and for most servers you'll have a
separate service user with clean shell. Developers could unintentionally have
the PORT var set on their laptop, but I don't think we should make design
decisions from that.
On a side note, I tested what would happen if you have both env `$PORT=1111`
and arg `-p 2222`, and the last arg will win, thus you can override any env
with explicit command arg, which I guess is a good thing.
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