Make Oracle Database healthcheck wait for the custom scripts to finish

Author: felipecrs

OracleDatabase/SingleInstance/dockerfiles/21.3.0/checkDBStatus.sh

@@ -73,6 +73,11 @@ EOF
 ################ MAIN #######################
 #############################################
 
+if [ "${BYPASS_STARTED_MARKER:-false}" = false ] && [ ! -f /tmp/.oracle_database_started ]; then
+   echo "Database was not started yet" >&2
+   exit 1
+fi
+
 # Setting up ORACLE_PWD if podman secret is passed on
 if [ -e '/run/secrets/oracle_pwd' ]; then
    export ORACLE_PWD="$(cat '/run/secrets/oracle_pwd')"

OracleDatabase/SingleInstance/dockerfiles/21.3.0/runOracle.sh

@@ -113,6 +113,9 @@ EOF
 # !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! #
 ###################################
 
+# Marker file for the healthcheck
+rm -f /tmp/.oracle_database_started
+
 # Check whether container has enough memory
 if [[ -f /sys/fs/cgroup/cgroup.controllers ]]; then
   memory=$(cat /sys/fs/cgroup/memory.max)
@@ -280,7 +283,7 @@ else
   "$ORACLE_BASE"/"$CREATE_DB_FILE" $ORACLE_SID "$ORACLE_PDB" "$ORACLE_PWD" || exit 1;
 
   # Check whether database is successfully created
-  if "$ORACLE_BASE"/"$CHECK_DB_FILE"; then
+  if BYPASS_STARTED_MARKER=true "$ORACLE_BASE"/"$CHECK_DB_FILE"; then
     # Create a checkpoint file if database is successfully created
     # Populate the checkpoint file with the current date to avoid timing issue when using NFS persistence in multi-replica mode
     echo "$(date -Iseconds)" > "$ORACLE_BASE"/oradata/.${ORACLE_SID}"${CHECKPOINT_FILE_EXTN}"
@@ -303,7 +306,7 @@ else
 fi;
 
 # Check whether database is up and running
-"$ORACLE_BASE"/"$CHECK_DB_FILE"
+BYPASS_STARTED_MARKER=true "$ORACLE_BASE"/"$CHECK_DB_FILE"
 status=$?
 
 # Check whether database is up and running
@@ -317,7 +320,9 @@ if [ $status -eq 0 ]; then
 
   # Execute custom provided startup scripts
   "$ORACLE_BASE"/"$USER_SCRIPTS_FILE" "$ORACLE_BASE"/scripts/startup
-  
+
+  # Marker file for the healthcheck
+  touch /tmp/.oracle_database_started
 else
   echo "#####################################"
   echo "########### E R R O R ###############"