DolphinScheduler/docker/build

What is DolphinScheduler?

DolphinScheduler is a distributed and easy-to-expand visual DAG workflow scheduling system, dedicated to solving the complex dependencies in data processing, making the scheduling system out of the box for data processing.

GitHub URL: https://github.com/apache/incubator-dolphinscheduler

Official Website: https://dolphinscheduler.apache.org

Prerequisites

• Docker 1.13.1+
• Docker Compose 1.11.0+

How to use this docker image

You can start a dolphinscheduler by docker-compose (recommended)

$ docker-compose -f ./docker/docker-swarm/docker-compose.yml up -d

The default postgres user root, postgres password root and database dolphinscheduler are created in the docker-compose.yml.

The default zookeeper is created in the docker-compose.yml.

Access the Web UI: http://192.168.xx.xx:12345/dolphinscheduler

The default username is admin and the default password is dolphinscheduler123

Tip: For quick start in docker, you can create a tenant named ds and associate the user admin with the tenant ds

Or via Environment Variables DATABASE_HOST, DATABASE_PORT, ZOOKEEPER_QUORUM

You can specify existing postgres and zookeeper service. Example:

$ docker run -d --name dolphinscheduler \
-e DATABASE_HOST="192.168.x.x" -e DATABASE_PORT="5432" -e DATABASE_DATABASE="dolphinscheduler" \
-e DATABASE_USERNAME="test" -e DATABASE_PASSWORD="test" \
-e ZOOKEEPER_QUORUM="192.168.x.x:2181" \
-p 12345:12345 \
apache/dolphinscheduler:latest all

Access the Web UI：http://192.168.xx.xx:12345/dolphinscheduler

Or start a standalone dolphinscheduler server

You can start a standalone dolphinscheduler server.

• Create a local volume for resource storage, For example:

docker volume create dolphinscheduler-resource-local

• Start a master server, For example:

$ docker run -d --name dolphinscheduler-master \
-e DATABASE_HOST="192.168.x.x" -e DATABASE_PORT="5432" -e DATABASE_DATABASE="dolphinscheduler" \
-e DATABASE_USERNAME="test" -e DATABASE_PASSWORD="test" \
-e ZOOKEEPER_QUORUM="192.168.x.x:2181" \
apache/dolphinscheduler:latest master-server

• Start a worker server (including logger server), For example:

$ docker run -d --name dolphinscheduler-worker \
-e DATABASE_HOST="192.168.x.x" -e DATABASE_PORT="5432" -e DATABASE_DATABASE="dolphinscheduler" \
-e DATABASE_USERNAME="test" -e DATABASE_PASSWORD="test" \
-e ZOOKEEPER_QUORUM="192.168.x.x:2181" \
-v dolphinscheduler-resource-local:/dolphinscheduler \
apache/dolphinscheduler:latest worker-server

• Start a api server, For example:

$ docker run -d --name dolphinscheduler-api \
-e DATABASE_HOST="192.168.x.x" -e DATABASE_PORT="5432" -e DATABASE_DATABASE="dolphinscheduler" \
-e DATABASE_USERNAME="test" -e DATABASE_PASSWORD="test" \
-e ZOOKEEPER_QUORUM="192.168.x.x:2181" \
-v dolphinscheduler-resource-local:/dolphinscheduler \
-p 12345:12345 \
apache/dolphinscheduler:latest api-server

• Start a alert server, For example:

$ docker run -d --name dolphinscheduler-alert \
-e DATABASE_HOST="192.168.x.x" -e DATABASE_PORT="5432" -e DATABASE_DATABASE="dolphinscheduler" \
-e DATABASE_USERNAME="test" -e DATABASE_PASSWORD="test" \
apache/dolphinscheduler:latest alert-server

Note: You must be specify DATABASE_HOST, DATABASE_PORT, DATABASE_DATABASE, DATABASE_USERNAME, DATABASE_PASSWORD, ZOOKEEPER_QUORUM when start a standalone dolphinscheduler server.

How to build a docker image

You can build a docker image in A Unix-like operating system, You can also build it in Windows operating system.

In Unix-Like, Example:

$ cd path/incubator-dolphinscheduler
$ sh ./docker/build/hooks/build

In Windows, Example:

C:\incubator-dolphinscheduler>.\docker\build\hooks\build.bat

Please read ./docker/build/hooks/build ./docker/build/hooks/build.bat script files if you don't understand

Support Matrix

Type	Support	Notes
Shell	Yes
Python2	Yes
Python3	Indirect Yes	Refer to FAQ
Hadoop2	Indirect Yes	Refer to FAQ
Hadoop3	Not Sure	Not tested
Spark-Local(client)	Indirect Yes	Refer to FAQ
Spark-YARN(cluster)	Indirect Yes	Refer to FAQ
Spark-Mesos(cluster)	Not Yet
Spark-Standalone(cluster)	Not Yet
Spark-Kubernetes(cluster)	Not Yet
Flink-Local(local>=1.11)	Not Yet	Generic CLI mode is not yet supported
Flink-YARN(yarn-cluster)	Indirect Yes	Refer to FAQ
Flink-YARN(yarn-session/yarn-per-job/yarn-application>=1.11)	Not Yet	Generic CLI mode is not yet supported
Flink-Mesos(default)	Not Yet
Flink-Mesos(remote>=1.11)	Not Yet	Generic CLI mode is not yet supported
Flink-Standalone(default)	Not Yet
Flink-Standalone(remote>=1.11)	Not Yet	Generic CLI mode is not yet supported
Flink-Kubernetes(default)	Not Yet
Flink-Kubernetes(remote>=1.11)	Not Yet	Generic CLI mode is not yet supported
Flink-NativeKubernetes(kubernetes-session/application>=1.11)	Not Yet	Generic CLI mode is not yet supported
MapReduce	Indirect Yes	Refer to FAQ
Kerberos	Indirect Yes	Refer to FAQ
HTTP	Yes
DataX	Indirect Yes	Refer to FAQ
Sqoop	Indirect Yes	Refer to FAQ
SQL-MySQL	Indirect Yes	Refer to FAQ
SQL-PostgreSQL	Yes
SQL-Hive	Indirect Yes	Refer to FAQ
SQL-Spark	Indirect Yes	Refer to FAQ
SQL-ClickHouse	Indirect Yes	Refer to FAQ
SQL-Oracle	Indirect Yes	Refer to FAQ
SQL-SQLServer	Indirect Yes	Refer to FAQ
SQL-DB2	Indirect Yes	Refer to FAQ

Environment Variables

The DolphinScheduler Docker container is configured through environment variables, and the default value will be used if an environment variable is not set.

Database

DATABASE_TYPE

This environment variable sets the type for database. The default value is postgresql.

Note: You must be specify it when start a standalone dolphinscheduler server. Like master-server, worker-server, api-server, alert-server.

DATABASE_DRIVER

This environment variable sets the type for database. The default value is org.postgresql.Driver.

Note: You must be specify it when start a standalone dolphinscheduler server. Like master-server, worker-server, api-server, alert-server.

DATABASE_HOST

This environment variable sets the host for database. The default value is 127.0.0.1.

Note: You must be specify it when start a standalone dolphinscheduler server. Like master-server, worker-server, api-server, alert-server.

DATABASE_PORT

This environment variable sets the port for database. The default value is 5432.

Note: You must be specify it when start a standalone dolphinscheduler server. Like master-server, worker-server, api-server, alert-server.

DATABASE_USERNAME

This environment variable sets the username for database. The default value is root.

Note: You must be specify it when start a standalone dolphinscheduler server. Like master-server, worker-server, api-server, alert-server.

DATABASE_PASSWORD

This environment variable sets the password for database. The default value is root.

Note: You must be specify it when start a standalone dolphinscheduler server. Like master-server, worker-server, api-server, alert-server.

DATABASE_DATABASE

This environment variable sets the database for database. The default value is dolphinscheduler.

Note: You must be specify it when start a standalone dolphinscheduler server. Like master-server, worker-server, api-server, alert-server.

DATABASE_PARAMS

This environment variable sets the database for database. The default value is characterEncoding=utf8.

Note: You must be specify it when start a standalone dolphinscheduler server. Like master-server, worker-server, api-server, alert-server.

ZooKeeper

ZOOKEEPER_QUORUM

This environment variable sets zookeeper quorum. The default value is 127.0.0.1:2181.

Note: You must be specify it when start a standalone dolphinscheduler server. Like master-server, worker-server, api-server.

ZOOKEEPER_ROOT

This environment variable sets zookeeper root directory for dolphinscheduler. The default value is /dolphinscheduler.

Common

DOLPHINSCHEDULER_OPTS

This environment variable sets jvm options for dolphinscheduler, suitable for master-server, worker-server, api-server, alert-server, logger-server. The default value is empty.

DATA_BASEDIR_PATH

User data directory path, self configuration, please make sure the directory exists and have read write permissions. The default value is /tmp/dolphinscheduler

RESOURCE_STORAGE_TYPE

This environment variable sets resource storage type for dolphinscheduler like HDFS, S3, NONE. The default value is HDFS.

RESOURCE_UPLOAD_PATH

This environment variable sets resource store path on HDFS/S3 for resource storage. The default value is /dolphinscheduler.

FS_DEFAULT_FS

This environment variable sets fs.defaultFS for resource storage like file:///, hdfs://mycluster:8020 or s3a://dolphinscheduler. The default value is file:///.

FS_S3A_ENDPOINT

This environment variable sets s3 endpoint for resource storage. The default value is s3.xxx.amazonaws.com.

FS_S3A_ACCESS_KEY

This environment variable sets s3 access key for resource storage. The default value is xxxxxxx.

FS_S3A_SECRET_KEY

This environment variable sets s3 secret key for resource storage. The default value is xxxxxxx.

HADOOP_SECURITY_AUTHENTICATION_STARTUP_STATE

This environment variable sets whether to startup kerberos. The default value is false.

JAVA_SECURITY_KRB5_CONF_PATH

This environment variable sets java.security.krb5.conf path. The default value is /opt/krb5.conf.

LOGIN_USER_KEYTAB_USERNAME

This environment variable sets login user from keytab username. The default value is hdfs@HADOOP.COM.

LOGIN_USER_KEYTAB_PATH

This environment variable sets login user from keytab path. The default value is /opt/hdfs.keytab.

KERBEROS_EXPIRE_TIME

This environment variable sets kerberos expire time, the unit is hour. The default value is 2.

HDFS_ROOT_USER

This environment variable sets hdfs root user when resource.storage.type=HDFS. The default value is hdfs.

YARN_RESOURCEMANAGER_HA_RM_IDS

This environment variable sets yarn resourcemanager ha rm ids. The default value is empty.

YARN_APPLICATION_STATUS_ADDRESS

This environment variable sets yarn application status address. The default value is http://ds1:8088/ws/v1/cluster/apps/%s.

SKYWALKING_ENABLE

This environment variable sets whether to enable skywalking. The default value is false.

SW_AGENT_COLLECTOR_BACKEND_SERVICES

This environment variable sets agent collector backend services for skywalking. The default value is 127.0.0.1:11800.

SW_GRPC_LOG_SERVER_HOST

This environment variable sets grpc log server host for skywalking. The default value is 127.0.0.1.

SW_GRPC_LOG_SERVER_PORT

This environment variable sets grpc log server port for skywalking. The default value is 11800.

HADOOP_HOME

This environment variable sets HADOOP_HOME. The default value is /opt/soft/hadoop.

HADOOP_CONF_DIR

This environment variable sets HADOOP_CONF_DIR. The default value is /opt/soft/hadoop/etc/hadoop.

SPARK_HOME1

This environment variable sets SPARK_HOME1. The default value is /opt/soft/spark1.

SPARK_HOME2

This environment variable sets SPARK_HOME2. The default value is /opt/soft/spark2.

PYTHON_HOME

This environment variable sets PYTHON_HOME. The default value is /usr/bin/python.

JAVA_HOME

This environment variable sets JAVA_HOME. The default value is /usr/local/openjdk-8.

HIVE_HOME

This environment variable sets HIVE_HOME. The default value is /opt/soft/hive.

FLINK_HOME

This environment variable sets FLINK_HOME. The default value is /opt/soft/flink.

DATAX_HOME

This environment variable sets DATAX_HOME. The default value is /opt/soft/datax.

Master Server

MASTER_SERVER_OPTS

This environment variable sets jvm options for master-server. The default value is -Xms1g -Xmx1g -Xmn512m.

MASTER_EXEC_THREADS

This environment variable sets exec thread number for master-server. The default value is 100.

MASTER_EXEC_TASK_NUM

This environment variable sets exec task number for master-server. The default value is 20.

MASTER_DISPATCH_TASK_NUM

This environment variable sets dispatch task number for master-server. The default value is 3.

MASTER_HOST_SELECTOR

This environment variable sets host selector for master-server. Optional values include Random, RoundRobin and LowerWeight. The default value is LowerWeight.

MASTER_HEARTBEAT_INTERVAL

This environment variable sets heartbeat interval for master-server. The default value is 10.

MASTER_TASK_COMMIT_RETRYTIMES

This environment variable sets task commit retry times for master-server. The default value is 5.

MASTER_TASK_COMMIT_INTERVAL

This environment variable sets task commit interval for master-server. The default value is 1000.

MASTER_MAX_CPULOAD_AVG

This environment variable sets max cpu load avg for master-server. The default value is -1.

MASTER_RESERVED_MEMORY

This environment variable sets reserved memory for master-server, the unit is G. The default value is 0.3.

Worker Server

WORKER_SERVER_OPTS

This environment variable sets jvm options for worker-server. The default value is -Xms1g -Xmx1g -Xmn512m.

WORKER_EXEC_THREADS

This environment variable sets exec thread number for worker-server. The default value is 100.

WORKER_HEARTBEAT_INTERVAL

This environment variable sets heartbeat interval for worker-server. The default value is 10.

WORKER_MAX_CPULOAD_AVG

This environment variable sets max cpu load avg for worker-server. The default value is -1.

WORKER_RESERVED_MEMORY

This environment variable sets reserved memory for worker-server, the unit is G. The default value is 0.3.

WORKER_GROUPS

This environment variable sets groups for worker-server. The default value is default.

Alert Server

ALERT_SERVER_OPTS

This environment variable sets jvm options for alert-server. The default value is -Xms512m -Xmx512m -Xmn256m.

XLS_FILE_PATH

This environment variable sets xls file path for alert-server. The default value is /tmp/xls.

MAIL_SERVER_HOST

This environment variable sets mail server host for alert-server. The default value is empty.

MAIL_SERVER_PORT

This environment variable sets mail server port for alert-server. The default value is empty.

MAIL_SENDER

This environment variable sets mail sender for alert-server. The default value is empty.

MAIL_USER=

This environment variable sets mail user for alert-server. The default value is empty.

MAIL_PASSWD

This environment variable sets mail password for alert-server. The default value is empty.

MAIL_SMTP_STARTTLS_ENABLE

This environment variable sets SMTP tls for alert-server. The default value is true.

MAIL_SMTP_SSL_ENABLE

This environment variable sets SMTP ssl for alert-server. The default value is false.

MAIL_SMTP_SSL_TRUST

This environment variable sets SMTP ssl truest for alert-server. The default value is empty.

ENTERPRISE_WECHAT_ENABLE

This environment variable sets enterprise wechat enable for alert-server. The default value is false.

ENTERPRISE_WECHAT_CORP_ID

This environment variable sets enterprise wechat corp id for alert-server. The default value is empty.

ENTERPRISE_WECHAT_SECRET

This environment variable sets enterprise wechat secret for alert-server. The default value is empty.

ENTERPRISE_WECHAT_AGENT_ID

This environment variable sets enterprise wechat agent id for alert-server. The default value is empty.

ENTERPRISE_WECHAT_USERS

This environment variable sets enterprise wechat users for alert-server. The default value is empty.

Api Server

API_SERVER_OPTS

This environment variable sets jvm options for api-server. The default value is -Xms512m -Xmx512m -Xmn256m.

Logger Server

LOGGER_SERVER_OPTS

This environment variable sets jvm options for logger-server. The default value is -Xms512m -Xmx512m -Xmn256m.

Initialization scripts

If you would like to do additional initialization in an image derived from this one, add one or more environment variables under /root/start-init-conf.sh, and modify template files in /opt/dolphinscheduler/conf/*.tpl.

For example, to add an environment variable SECURITY_AUTHENTICATION_TYPE in /root/start-init-conf.sh:

export SECURITY_AUTHENTICATION_TYPE=PASSWORD

and to modify application-api.properties.tpl template file, add the SECURITY_AUTHENTICATION_TYPE:

security.authentication.type=${SECURITY_AUTHENTICATION_TYPE}

/root/start-init-conf.sh will dynamically generate config file:

echo "generate dolphinscheduler config"
ls ${DOLPHINSCHEDULER_HOME}/conf/ | grep ".tpl" | while read line; do
eval "cat << EOF
$(cat ${DOLPHINSCHEDULER_HOME}/conf/${line})
EOF
" > ${DOLPHINSCHEDULER_HOME}/conf/${line%.*}
done

FAQ

How to stop dolphinscheduler by docker-compose?

Stop containers:

docker-compose stop

Stop containers and remove containers, networks and volumes:

docker-compose down -v

How to deploy dolphinscheduler on Docker Swarm?

Assuming that the Docker Swarm cluster has been created (If there is no Docker Swarm cluster, please refer to create-swarm)

Start a stack named dolphinscheduler

docker stack deploy -c docker-stack.yml dolphinscheduler

Stop and remove the stack named dolphinscheduler

docker stack rm dolphinscheduler

How to use MySQL as the DolphinScheduler's database instead of PostgreSQL?

Because of the commercial license, we cannot directly use the driver of MySQL.

If you want to use MySQL, you can build a new image based on the apache/dolphinscheduler image as follows.

1. Download the MySQL driver mysql-connector-java-5.1.49.jar (require >=5.1.47)

2. Create a new Dockerfile to add MySQL driver:

FROM apache/dolphinscheduler:latest
COPY mysql-connector-java-5.1.49.jar /opt/dolphinscheduler/lib

3. Build a new docker image including MySQL driver:

docker build -t apache/dolphinscheduler:mysql-driver .

4. Modify all image fields to apache/dolphinscheduler:mysql-driver in docker-compose.yml

If you want to deploy dolphinscheduler on Docker Swarm, you need modify docker-stack.yml

5. Comment the dolphinscheduler-postgresql block in docker-compose.yml

6. Add dolphinscheduler-mysql service in docker-compose.yml (Optional, you can directly use a external MySQL database)

7. Modify DATABASE environments in config.env.sh

DATABASE_TYPE=mysql
DATABASE_DRIVER=com.mysql.jdbc.Driver
DATABASE_HOST=dolphinscheduler-mysql
DATABASE_PORT=3306
DATABASE_USERNAME=root
DATABASE_PASSWORD=root
DATABASE_DATABASE=dolphinscheduler
DATABASE_PARAMS=useUnicode=true&characterEncoding=UTF-8

If you have added dolphinscheduler-mysql service in docker-compose.yml, just set DATABASE_HOST to dolphinscheduler-mysql

8. Run a dolphinscheduler (See How to use this docker image)

How to support MySQL datasource in Datasource manage?

Because of the commercial license, we cannot directly use the driver of MySQL.

If you want to add MySQL datasource, you can build a new image based on the apache/dolphinscheduler image as follows.

1. Download the MySQL driver mysql-connector-java-5.1.49.jar (require >=5.1.47)

2. Create a new Dockerfile to add MySQL driver:

FROM apache/dolphinscheduler:latest
COPY mysql-connector-java-5.1.49.jar /opt/dolphinscheduler/lib

3. Build a new docker image including MySQL driver:

docker build -t apache/dolphinscheduler:mysql-driver .

4. Modify all image fields to apache/dolphinscheduler:mysql-driver in docker-compose.yml

If you want to deploy dolphinscheduler on Docker Swarm, you need modify docker-stack.yml

5. Run a dolphinscheduler (See How to use this docker image)

6. Add a MySQL datasource in Datasource manage

How to support Oracle datasource in Datasource manage?

Because of the commercial license, we cannot directly use the driver of Oracle.

If you want to add Oracle datasource, you can build a new image based on the apache/dolphinscheduler image as follows.

1. Download the Oracle driver ojdbc8.jar (such as ojdbc8-19.9.0.0.jar)

2. Create a new Dockerfile to add Oracle driver:

FROM apache/dolphinscheduler:latest
COPY ojdbc8-19.9.0.0.jar /opt/dolphinscheduler/lib

3. Build a new docker image including Oracle driver:

docker build -t apache/dolphinscheduler:oracle-driver .

4. Modify all image fields to apache/dolphinscheduler:oracle-driver in docker-compose.yml

If you want to deploy dolphinscheduler on Docker Swarm, you need modify docker-stack.yml

5. Run a dolphinscheduler (See How to use this docker image)

6. Add a Oracle datasource in Datasource manage

How to support Python 2 pip and custom requirements.txt?

1. Create a new Dockerfile to install pip:

FROM apache/dolphinscheduler:latest
COPY requirements.txt /tmp
RUN apt-get update && \
    apt-get install -y --no-install-recommends python-pip && \
    pip install --no-cache-dir -r /tmp/requirements.txt && \
    rm -rf /var/lib/apt/lists/*

The command will install the default pip 18.1. If you upgrade the pip, just add one line

    pip install --no-cache-dir -U pip && \

2. Build a new docker image including pip:

docker build -t apache/dolphinscheduler:pip .

3. Modify all image fields to apache/dolphinscheduler:pip in docker-compose.yml

If you want to deploy dolphinscheduler on Docker Swarm, you need modify docker-stack.yml

4. Run a dolphinscheduler (See How to use this docker image)

5. Verify pip under a new Python task

How to support Python 3?

1. Create a new Dockerfile to install Python 3:

FROM apache/dolphinscheduler:latest
RUN apt-get update && \
    apt-get install -y --no-install-recommends python3 && \
    rm -rf /var/lib/apt/lists/*

The command will install the default Python 3.7.3. If you also want to install pip3, just replace python3 with python3-pip like

    apt-get install -y --no-install-recommends python3-pip && \

2. Build a new docker image including Python 3:

docker build -t apache/dolphinscheduler:python3 .

3. Modify all image fields to apache/dolphinscheduler:python3 in docker-compose.yml

If you want to deploy dolphinscheduler on Docker Swarm, you need modify docker-stack.yml

4. Modify PYTHON_HOME to /usr/bin/python3 in config.env.sh

5. Run a dolphinscheduler (See How to use this docker image)

6. Verify Python 3 under a new Python task

How to support Hadoop, Spark, Flink, Hive or DataX?

Take Spark 2.4.7 as an example:

1. Download the Spark 2.4.7 release binary spark-2.4.7-bin-hadoop2.7.tgz

2. Run a dolphinscheduler (See How to use this docker image)

3. Copy the Spark 2.4.7 release binary into Docker container

docker cp spark-2.4.7-bin-hadoop2.7.tgz dolphinscheduler-worker:/opt/soft

Because the volume dolphinscheduler-shared-local is mounted on /opt/soft, all files in /opt/soft will not be lost

4. Attach the container and ensure that SPARK_HOME2 exists

docker exec -it dolphinscheduler-worker bash
cd /opt/soft
tar zxf spark-2.4.7-bin-hadoop2.7.tgz
rm -f spark-2.4.7-bin-hadoop2.7.tgz
ln -s spark-2.4.7-bin-hadoop2.7 spark2 # or just mv
$SPARK_HOME2/bin/spark-submit --version

The last command will print Spark version if everything goes well

5. Verify Spark under a Shell task

$SPARK_HOME2/bin/spark-submit --class org.apache.spark.examples.SparkPi $SPARK_HOME2/examples/jars/spark-examples_2.11-2.4.7.jar

Check whether the task log contains the output like Pi is roughly 3.146015

6. Verify Spark under a Spark task

The file spark-examples_2.11-2.4.7.jar needs to be uploaded to the resources first, and then create a Spark task with:

• Spark Version: SPARK2
• Main Class: org.apache.spark.examples.SparkPi
• Main Package: spark-examples_2.11-2.4.7.jar
• Deploy Mode: local

Similarly, check whether the task log contains the output like Pi is roughly 3.146015

7. Verify Spark on YARN

Spark on YARN (Deploy Mode is cluster or client) requires Hadoop support. Similar to Spark support, the operation of supporting Hadoop is almost the same as the previous steps

Ensure that $HADOOP_HOME and $HADOOP_CONF_DIR exists

For more information please refer to the incubator-dolphinscheduler documentation.