[XEN-3155] fix entrypoint script not producing json logs

Author: NotAPenguin0

tomcat-base/src/shared/main/bash/entrypoint/docker-entrypoint.d/90-logging-env-vars.sh

@@ -6,8 +6,12 @@ set -e
 
 LOG_CONFIG_FILE="/generated-log-config.properties"
 
-echo "Generating log config at: ${LOG_CONFIG_FILE}"
-echo "Using Log4j Version: ${LOG4J_VERSION}"
+function log() {
+  echo '{ "timestamp" : '"$(date '+%s')"' ,"severity" : "INFO", "type" : "application","component" : "docker-entrypoint" ,"fullMessage" : " '"$1"' " }'
+}
+
+log "Generating log config at: ${LOG_CONFIG_FILE}"
+log "Using Log4j Version: ${LOG4J_VERSION}"
 
 # Start with a clean file
 touch "${LOG_CONFIG_FILE}"
@@ -26,7 +30,7 @@ for var in $(env); do
     logger_name=$(echo "$var_name" | sed 's/LOG_LEVEL_//' | sed 's/_/./g')
 
     if [ -n "$logger_name" ] && [ -n "$var_value" ]; then
-      echo "Applying log level: ${logger_name}=${var_value}"
+      log "Applying log level: ${logger_name}=${var_value}"
 
       if [ "$LOG4J_VERSION" = "1" ]; then
         # Log4j 1.x syntax
@@ -47,7 +51,7 @@ done
 
 if [ "$LOG4J_VERSION" = "1" ]; then
   # --- Log4j 1.x Config ---
-  echo "Generating Log4j config."
+  log "Generating Log4j config."
   echo "# Auto-generated Log4j 1.x config" >> "${LOG_CONFIG_FILE}"
 
   # Add a basic console appender
@@ -94,4 +98,4 @@ fi
 # Export new Java options with updated log config
 export JAVA_OPTS
 
-echo "Log configuration complete. JAVA_OPTS updated."
+log "Log configuration complete. JAVA_OPTS updated."