v0.27.5: escaping $ symbol in bash script

charts/kamu-api-server/Chart.yaml

@@ -2,7 +2,7 @@ apiVersion: v2
 name: kamu-api-server
 description: API server component of the Kamu Compute Node
 type: application
-version: 0.27.4
+version: 0.27.5
 appVersion: "0.27.1"
 home: https://kamu.dev
 icon: https://www.kamu.dev/images/kamu_logo_icon_bg_square.png

charts/kamu-api-server/templates/configmap.yaml

@@ -9,21 +9,21 @@ data:
   fetch-db-secret.sh: |
     #!/bin/bash
 
-    if [ $# -ne 5 ]; then
-      echo "Usage: $0 <secret-name> <region> <db-host> <db-port> <db-name>"
+    if [ $$# -ne 5 ]; then
+      echo "Usage: $$0 <secret-name> <region> <db-host> <db-port> <db-name>"
       exit 1
     fi
 
-    SECRET_NAME="$1"
-    REGION="$2"
-    DB_HOST="$3"
-    DB_PORT="$4"
-    DB_NAME="$5"
+    SECRET_NAME="$$1"
+    REGION="$$2"
+    DB_HOST="$$3"
+    DB_PORT="$$4"
+    DB_NAME="$$5"
 
-    SECRET_STRING=$(aws secretsmanager get-secret-value --secret-id $SECRET_NAME --region $REGION --query SecretString --output text)
-    USERNAME=$(echo $SECRET_STRING | jq -r .username)
-    PASSWORD=$(echo $SECRET_STRING | jq -r .password)
+    SECRET_STRING=$$(aws secretsmanager get-secret-value --secret-id $$SECRET_NAME --region $$REGION --query SecretString --output text)
+    USERNAME=$$(echo $$SECRET_STRING | jq -r .username)
+    PASSWORD=$$(echo $$SECRET_STRING | jq -r .password)
 
-    export DB_CONNECTION_STRING="postgresql://${USERNAME}:${PASSWORD}@${DB_HOST}:${DB_PORT}/${DB_NAME}"
+    export DB_CONNECTION_STRING="postgresql://$${USERNAME}:$${PASSWORD}@$${DB_HOST}:$${DB_PORT}/$${DB_NAME}"
 
-    exec "$@"
+    exec "$$@"