Migrate from old Docker deployment files

• Why deployment files were changed?
• Who needs this guide?
• Move Postgres data to Docker volume
• Move Trendz data to Docker volume
• Move to new deployment files

This guide will help you to move from the old deployment files for Docker installation using volume bindings instead of local volumes. This guide covers standalone Trendz installation.

Why deployment files were changed?

• data was persisted in local folders with specific ownerships instead of Docker volumes mechanism

Who needs this guide?

Customers who have docker compose file as below or similar:

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version: '3.0'
services:
  mytrendz:
    restart: always
    image: "thingsboard/trendz:1.14.0"
    ports:
      - "8888:8888"
    environment:
      TB_API_URL: http://10.0.0.101:8080
      TRENDZ_LICENSE_INSTANCE_DATA_FILE: /data/license.data
      SPRING_DATASOURCE_URL: jdbc:postgresql://postgres:5432/trendz
      SPRING_DATASOURCE_USERNAME: postgres
      SPRING_DATASOURCE_PASSWORD: postgres
      SCRIPT_ENGINE_TIMEOUT: 30000
    volumes:
      - ~/.mytrendz-data:/data
      - ~/.mytrendz-logs:/var/log/trendz
  postgres:
    restart: always
    image: "postgres:15"
    ports:
      - "5432"
    environment:
      POSTGRES_DB: trendz
      POSTGRES_PASSWORD: postgres
    volumes:
      - ~/.mytrendz-data/db:/var/lib/postgresql/data

Move Postgres data to Docker volume

Create a named Docker volume:

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docker volume create --name trendz-postgres-data

Run container with attached volumes to copy data from folder to newly created volume

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docker run --rm -v ~/.mytrendz-data/db:/source -v trendz-postgres-data:/destination alpine sh -c "cp -rp /source/* /destination/"

Note that previously we have PostgreSQL 15 image in our docker compose, which is replaced with PostgreSQL 16 now. In order to start Postgres DB container you need either use postgres:15 image in new deployment files or upgrade database files

Move Trendz data to Docker volume

Create a named Docker volume:

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docker volume create --name trendz-data

Run container with attached volumes to copy data from folder to newly created volume:

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docker run --rm -v ~/.mytrendz-data/:/source -v tb-pe-license-data:/destination alpine sh -c "cp -rp /source/* /destination/ && chown 799:799 /destination/license.data"

Move to new deployment files

Open docker-compose.yml file with text editor:

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nano docker-compose.yml

Copy current Docker Compose manifest and replace the old one with current manifest. Replace Postgres docker image if needed.

After data is moved to the docker volumes and docker-compose.yml file have the same structure as the installation example - you can proceed with upgrade of the Trendz.