Keycloak Import in Docker and Exit

keycloak-import-docker.sh

#!/bin/sh
  
# If something goes wrong, this script does not run forever but times out
TIMEOUT_SECONDS=300

# Logfile for the keycloak export instance
LOGFILE=/tmp/standalone.sh.log
# destionation export file
JSON_IMPORT_FILE=/opt/jboss/keycloak/imports/realm-export.json

rm -f ${LOGFILE} ${JSON_IMPORT_FILE}

# Start a new keycloak instance with exporting options enabled.
# Use prot offset to prevent port conflicts with the "real" keycloak instance.

timeout ${TIMEOUT_SECONDS}s \
 /opt/jboss/keycloak/bin/standalone.sh \
  -Dkeycloak.migration.action=import \
  -Dkeycloak.migration.provider=singleFile \
  -Dkeycloak.migration.strategy=OVERWRITE_EXISTING \
  -Dkeycloak.migration.file=${JSON_IMPORT_FILE} \
  -Djboss.socket.binding.port-offset=99 \
   > ${LOGFILE} &

# Grab the keycloak export instance process id
PID="${!}"

echo "PID is ${PID}"

timeout ${TIMEOUT_SECONDS}s grep -m 1 "Import finished successfully" <(tail -f ${LOGFILE})

# Stop the keycloak export instance
kill ${PID}

# Reloading keycloak to pick up new configurations
/opt/jboss/keycloak/bin/jboss-cli.sh --connect command=:reload

• Move the script to keycloak docker as a volume.
• Get the name of keycloak container:
  docker ps
• Run the following command:
  docker exec <keycloak_container_name_or_id> /bin/bash /tmp/keycloak-import-docker.sh