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Docker Deployment

About 7 min

Docker Deployment

Environmental Preparation

Docker Installation

#Taking Ubuntu as an example, other operating systems can search for installation methods themselves
#step1: Install some necessary system tools
sudo apt-get update
sudo apt-get -y install apt-transport-https ca-certificates curl software-properties-common
#step2: Install GPG certificate
curl -fsSL https://mirrors.aliyun.com/docker-ce/linux/ubuntu/gpg | sudo apt-key add -
#step3: Write software source information
sudo add-apt-repository "deb [arch=amd64] https://mirrors.aliyun.com/docker-ce/linux/ubuntu $(lsb_release -cs) stable"
#step4: Update and install Docker CE
sudo apt-get -y update
sudo apt-get -y install docker-ce
#step5: Set Docker to start automatically upon startup
sudo systemctl enable docker
#step6： Verify if Docker installation is successful
docker --version  #Display version information, indicating successful installation

Docker-compose Installation

#Installation command
curl -L "https://github.com/docker/compose/releases/download/v2.20.0/docker-compose-$(uname -s)-$(uname -m)" -o /usr/local/bin/docker-compose
chmod +x /usr/local/bin/docker-compose
ln -s  /usr/local/bin/docker-compose  /usr/bin/docker-compose
#Verify if the installation was successful
docker-compose --version  #Displaying version information indicates successful installation

Install The Dmidecode Plugin

By default, Linux servers should already be installed. If not, you can use the following command to install them.

sudo apt-get install dmidecode

After installing dmidecode, search for the installation path: wherever dmidecode. Assuming the result is /usr/sbin/dmidecode, remember this path as it will be used in the later docker compose yml file.

Get Container Image Of IoTDB

You can contact business or technical support to obtain container images for IoTDB Enterprise Edition.

Stand-Alone Deployment

This section demonstrates how to deploy a standalone Docker version of 1C1D.

Load Image File

For example, the container image file name of IoTDB obtained here is: iotdb-enterprise-1.3.2-3-standalone-docker.tar.gz

Load image:

docker load -i iotdb-enterprise-1.3.2.3-standalone-docker.tar.gz

View image:

docker images

Create Docker Bridge Network

docker network create --driver=bridge --subnet=172.18.0.0/16 --gateway=172.18.0.1  iotdb

Write The Yml File For docker-compose

Here we take the example of consolidating the IoTDB installation directory and yml files in the/docker iotdb folder:

The file directory structure is:/docker-iotdb/iotdb, /docker-iotdb/docker-compose-standalone.yml 

docker-iotdb：
├── iotdb  #Iotdb installation directory
│── docker-compose-standalone.yml #YML file for standalone Docker Composer

The complete docker-compose-standalone.yml content is as follows:

version: "3"
services:
  iotdb-service:
    image: iotdb-enterprise:1.3.2.3-standalone #The image used
    hostname: iotdb
    container_name: iotdb
    restart: always       
    ports:
      - "6667:6667"
    environment:
      - cn_internal_address=iotdb
      - cn_internal_port=10710
      - cn_consensus_port=10720
      - cn_seed_config_node=iotdb:10710
      - dn_rpc_address=iotdb
      - dn_internal_address=iotdb
      - dn_rpc_port=6667
      - dn_internal_port=10730
      - dn_mpp_data_exchange_port=10740
      - dn_schema_region_consensus_port=10750
      - dn_data_region_consensus_port=10760
      - dn_seed_config_node=iotdb:10710
    privileged: true
    volumes:
        - ./iotdb/activation:/iotdb/activation
        - ./iotdb/data:/iotdb/data
        - ./iotdb/logs:/iotdb/logs
        - /usr/sbin/dmidecode:/usr/sbin/dmidecode:ro
        - /dev/mem:/dev/mem:ro
    networks:
      iotdb:
        ipv4_address: 172.18.0.6
networks:
  iotdb:
    external: true

First Launch

Use the following command to start:

cd　/docker-iotdb
docker-compose -f docker-compose-standalone.yml up

Due to lack of activation, it is normal to exit directly upon initial startup. The initial startup is to obtain the machine code file for the subsequent activation process.

Apply For Activation

  • After the first startup, a system_info file will be generated in the physical machine directory /docker-iotdb/iotdb/activation, and this file will be copied to the Timecho staff.

  • Received the license file returned by the staff, copy the license file to the /docker iotdb/iotdb/activation folder.

Restart IoTDB

docker-compose  -f docker-compose-standalone.yml   up  -d

Validate Deployment

  • Viewing the log, the following words indicate successful startup

    docker logs -f iotdb-datanode #View log command
2024-07-19 12:02:32,608 [main] INFO  o.a.i.db.service.DataNode:231 - Congratulations, IoTDB DataNode is set up successfully. Now, enjoy yourself!

  • Enter the container to view the service running status and activation information

    View the launched container

    docker ps

    Enter the container, log in to the database through CLI, and use the show cluster command to view the service status and activation status

    docker exec -it iotdb   /bin/bash        #Entering the container
./start-cli.sh -h iotdb                  #Log in to the database
IoTDB> show cluster                      #View status

    You can see that all services are running and the activation status shows as activated.

Map/conf Directory (optional)

If you want to directly modify the configuration file in the physical machine in the future, you can map the/conf folder in the container in three steps:

Step 1: Copy the/conf directory from the container to/docker-iotdb/iotdb/conf

docker cp iotdb:/iotdb/conf /docker-iotdb/iotdb/conf

Step 2: Add mappings in docker-compose-standalone.yml

    volumes:
        - ./iotdb/conf:/iotdb/conf   #Add mapping for this/conf folder
        - ./iotdb/activation:/iotdb/activation
        - ./iotdb/data:/iotdb/data
        - ./iotdb/logs:/iotdb/logs
        - /usr/sbin/dmidecode:/usr/sbin/dmidecode:ro
        - /dev/mem:/dev/mem:ro

Step 3: Restart IoTDB

docker-compose  -f docker-compose-standalone.yml  up  -d

Cluster Deployment

This section describes how to manually deploy an instance that includes 3 Config Nodes and 3 Data Nodes, commonly known as a 3C3D cluster.

Note: The cluster version currently only supports host and overlay networks, and does not support bridge networks.

Taking the host network as an example, we will demonstrate how to deploy a 3C3D cluster.

Set Host Name

Assuming there are currently three Linux servers, the IP addresses and service role assignments are as follows:

Node IPHost NameService
192.168.1.3iotdb-1ConfigNode、DataNode
192.168.1.4iotdb-2ConfigNode、DataNode
192.168.1.5iotdb-3ConfigNode、DataNode

Configure the host names on three machines separately. To set the host names, configure /etc/hosts on the target server using the following command:

echo "192.168.1.3  iotdb-1"  >> /etc/hosts
echo "192.168.1.4  iotdb-2"  >> /etc/hosts
echo "192.168.1.5  iotdb-3"  >> /etc/hosts

Load Image File

For example, the container image file name obtained for IoTDB is: iotdb-enterprise-1.3.23-standalone-docker.tar.gz

Execute the load image command on three servers separately:

docker load -i iotdb-enterprise-1.3.2.3-standalone-docker.tar.gz

View image:

docker images

Write The Yml File For Docker Compose

Here we take the example of consolidating the IoTDB installation directory and yml files in the /docker-iotdb folder:

The file directory structure is:/docker-iotdb/iotdb, /docker-iotdb/confignode.yml，/docker-iotdb/datanode.yml

docker-iotdb：
├── confignode.yml #Yml file of confignode
├── datanode.yml   #Yml file of datanode
└── iotdb          #IoTDB installation directory

On each server, two yml files need to be written, namely confignnode. yml and datanode. yml. The example of yml is as follows:

confignode.yml：

#confignode.yml
version: "3"
services:
  iotdb-confignode:
    image: iotdb-enterprise:1.3.2.3-standalone #The image used
    hostname: iotdb-1|iotdb-2|iotdb-3 #Choose from three options based on the actual situation
    container_name: iotdb-confignode
    command: ["bash", "-c", "entrypoint.sh confignode"]
    restart: always
    environment:
      - cn_internal_address=iotdb-1|iotdb-2|iotdb-3 #Choose from three options based on the actual situation
      - cn_internal_port=10710
      - cn_consensus_port=10720
      - cn_seed_config_node=iotdb-1:10710   #The default first node is the seed node
      - schema_replication_factor=3         #Number of metadata copies
      - data_replication_factor=2           #Number of data replicas
    privileged: true
    volumes:
      - ./iotdb/activation:/iotdb/activation
      - ./iotdb/data:/iotdb/data
      - ./iotdb/logs:/iotdb/logs
      - /usr/sbin/dmidecode:/usr/sbin/dmidecode:ro
      - /dev/mem:/dev/mem:ro
    network_mode: "host"    #Using the host network

datanode.yml：

#datanode.yml
version: "3"
services:
  iotdb-datanode:
    image: iotdb-enterprise:1.3.2.3-standalone #The image used
    hostname: iotdb-1|iotdb-2|iotdb-3 #Choose from three options based on the actual situation
    container_name: iotdb-datanode
    command: ["bash", "-c", "entrypoint.sh datanode"]
    restart: always
    ports:
      - "6667:6667"
    privileged: true
    environment:
      - dn_rpc_address=iotdb-1|iotdb-2|iotdb-3 #Choose from three options based on the actual situation
      - dn_internal_address=iotdb-1|iotdb-2|iotdb-3 #Choose from three options based on the actual situation
      - dn_seed_config_node=iotdb-1:10710      #The default first node is the seed node
      - dn_rpc_port=6667
      - dn_internal_port=10730
      - dn_mpp_data_exchange_port=10740
      - dn_schema_region_consensus_port=10750
      - dn_data_region_consensus_port=10760
      - schema_replication_factor=3         #Number of metadata copies
      - data_replication_factor=2           #Number of data replicas
    volumes:
      - ./iotdb/activation:/iotdb/activation
      - ./iotdb/data:/iotdb/data
      - ./iotdb/logs:/iotdb/logs
      - /usr/sbin/dmidecode:/usr/sbin/dmidecode:ro
      - /dev/mem:/dev/mem:ro
    network_mode: "host"   #Using the host network

Starting Confignode For The First Time

First, start configNodes on each of the three servers to obtain the machine code. Pay attention to the startup order, start the first iotdb-1 first, then start iotdb-2 and iotdb-3.

cd　/docker-iotdb
docker-compose -f confignode.yml up  -d #Background startup

Apply For Activation

  • After starting three confignodes for the first time, a system_info file will be generated in each physical machine directory /docker-iotdb/iotdb/activation, and the system_info files of the three servers will be copied to the Timecho staff;

  • Put the three license files into the /docker iotdb/iotdb/activation folder of the corresponding Configurable Node node;

  • After the license is placed in the corresponding activation folder, confignode will be automatically activated without restarting confignode

Start Datanode

Start datanodes on 3 servers separately

cd /docker-iotdb
docker-compose  -f  datanode.yml  up -d #Background startup

Validate Deployment

  • Viewing the logs, the following words indicate that the datanode has successfully started

    docker logs -f iotdb-datanode #View log command
2024-07-20 16:50:48,937 [main] INFO  o.a.i.db.service.DataNode:231 - Congratulations, IoTDB DataNode is set up successfully. Now, enjoy yourself!

  • Enter any container to view the service running status and activation information

    View the launched container

    docker ps

    Enter the container, log in to the database through CLI, and use the show cluster command to view the service status and activation status

    docker exec -it iotdb-datanode /bin/bash #Entering the container
./start-cli.sh -h iotdb-1                #Log in to the database
IoTDB> show cluster                      #View status

    You can see that all services are running and the activation status shows as activated.

Map/conf Directory (optional)

If you want to directly modify the configuration file in the physical machine in the future, you can map the/conf folder in the container in three steps:

Step 1: Copy the /conf directory from the container to /docker-iotdb/iotdb/conf on each of the three servers

docker cp iotdb-confignode:/iotdb/conf /docker-iotdb/iotdb/conf
or
docker cp iotdb-datanode:/iotdb/conf   /docker-iotdb/iotdb/conf

Step 2: Add /conf directory mapping in confignode.yml and datanode. yml on 3 servers

#confignode.yml
    volumes:
      - ./iotdb/conf:/iotdb/conf  #Add mapping for this /conf folder
      - ./iotdb/activation:/iotdb/activation
      - ./iotdb/data:/iotdb/data
      - ./iotdb/logs:/iotdb/logs
      - /usr/sbin/dmidecode:/usr/sbin/dmidecode:ro
      - /dev/mem:/dev/mem:ro

#datanode.yml
    volumes:
      - ./iotdb/conf:/iotdb/conf   #Add mapping for this /conf folder 
      - ./iotdb/activation:/iotdb/activation
      - ./iotdb/data:/iotdb/data
      - ./iotdb/logs:/iotdb/logs
      - /usr/sbin/dmidecode:/usr/sbin/dmidecode:ro
      - /dev/mem:/dev/mem:ro

Step 3: Restart IoTDB on 3 servers

cd /docker-iotdb
docker-compose  -f confignode.yml  up  -d
docker-compose  -f datanode.yml    up  -d
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