fix: add condition in case vars are undefined

ObolNetwork · Feb 4, 2025 · 133e8c7 · 133e8c7
1 parent 85929a9
commit 133e8c7
Showing 1 changed file with 12 additions and 5 deletions.
diff --git a/promtail/run.sh b/promtail/run.sh
@@ -5,13 +5,20 @@ if [ -z "$CHARON_LOKI_ADDRESSES" ]; then
   exit 1
 fi
 
-sed "s|\$CHARON_LOKI_ADDRESSES|${CHARON_LOKI_ADDRESSES}|g" \
-    /etc/promtail/config.yml.example > /etc/promtail/config.yml
+if [ -z "$CLUSTER_NAME" ]; then
+  echo "Error: \$CLUSTER_NAME variable is empty" >&2
+  exit 1
+fi
 
-sed "s|\$CLUSTER_NAME|${CLUSTER_NAME}|g" \
-    /etc/promtail/config.yml.example > /etc/promtail/config.yml
+if [ -z "$CLUSTER_PEER" ]; then
+  echo "Error: \$CLUSTER_PEER variable is empty" >&2
+  exit 1
+fi
 
-sed "s|\$CLUSTER_PEER|${CLUSTER_PEER}|g" \
+# Process the template file once
+sed -e "s|\$CHARON_LOKI_ADDRESSES|${CHARON_LOKI_ADDRESSES}|g" \
+    -e "s|\$CLUSTER_NAME|${CLUSTER_NAME}|g" \
+    -e "s|\$CLUSTER_PEER|${CLUSTER_PEER}|g" \
     /etc/promtail/config.yml.example > /etc/promtail/config.yml
 
 # Start Promtail with the generated config