There are few tricks you could try if you want to achieve “100%” uptime / rolling update while using Docker Compose only. Not Docker Swarm, not K8s.
- Docker Compose
Step 1. Download the
latest image, or the one you want to be deployed.
Step 2. Open the
docker-compose.yml file and update the service image tag.
Step 3. Run the following command to bring another batch of new containers while keeping the old running:
docker compose up -d
Step 4. Scale down to the initial required number of containers. For instance from 10 to 5 containers:
docker compose scale app=5
Step 5. Verify.
docker compose ps
Step 6. Cleanup.
docker system prune
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