Docker Engine Container Runtime | Support by cloudimg

This is a repackaged open source software product wherein additional charges apply for cloudimg support services.

Overview

Docker Engine is the industry-standard open source runtime for building, shipping, and running applications in containers. This AMI delivers Docker Engine fully installed and configured so you have a complete container platform running within minutes of launch - no package management, repository setup, or manual configuration required.

What Is Included

• Docker Engine, the Docker CLI, and the containerd runtime
• Buildx plugin for advanced and multi-platform image builds
• Compose plugin for defining and running multi-container applications from a single file
• Docker daemon and containerd enabled and started automatically at boot

Dedicated Storage Tier

Docker image layers, container writable layers, and named volumes live on a separate, independently resizable Amazon EBS volume mounted at the Docker data directory. By keeping container storage off the operating system disk, you eliminate the risk of root volume exhaustion causing instance failure - a common problem when container images accumulate on a shared disk. Resize the data volume independently as your workloads grow without disturbing the OS or requiring instance downtime.

Security and Hardening

The Docker daemon listens only on a local Unix socket - no remote TCP API is exposed by default. Container access is granted through group membership rather than root privileges, reducing the attack surface. The dedicated Amazon EBS storage volume supports encryption at rest using AWS Key Management Service (KMS), allowing you to meet data-at-rest encryption requirements. We recommend enabling Docker Content Trust for image signature verification in production environments.

Container Access on First Boot

On first boot, a one-shot systemd service adds the default login user to the docker group so containers can be managed without sudo after a single re-login. This eliminates the manual post-install step that often leads to insecure workarounds such as running containers as root.

AWS Integration

This AMI works seamlessly with core AWS services:

• Amazon ECR - Pull and push container images to your private registry without additional credential configuration beyond IAM roles
• Amazon CloudWatch - Ship container and daemon logs using the awslogs logging driver for centralized monitoring and alerting
• Amazon EBS - The dedicated storage tier leverages EBS volumes that support gp3, io2, and other volume types for tunable IOPS and throughput
• AWS CodeBuild and CodePipeline - Use this AMI as a self-hosted build agent for CI/CD pipelines that require Docker-in-Docker or custom build environments

Use Case: CI/CD Build Agents at Scale

Platform engineering teams deploy this AMI as ephemeral build agents in Auto Scaling groups. Each agent launches, pulls the build image from Amazon ECR, executes the test suite in isolated containers, pushes artifacts, and terminates - all without manual Docker installation. The dedicated storage volume prevents build cache from filling the root disk during parallel jobs, enabling dozens of concurrent builds per instance without storage-related failures.

Additional Use Cases

• Container-based application hosting for microservices and monoliths
• Multi-container application stacks orchestrated with Compose
• Development and testing environments that mirror production
• Self-hosted CI runners for teams without dedicated DevOps staff

Technical Requirements

• Compatible with t3, m5, c5, r5, and other current-generation instance families
• Minimum recommended: 2 vCPU, 4 GB RAM (t3.medium or larger)
• Root volume: 8 GB minimum
• Data volume: 20 GB minimum (resizable via EBS without reboot)
• Security group: allow inbound SSH (port 22) for management access

Getting Started

1. Launch the AMI from AWS Marketplace and select your instance type
2. Connect via SSH using your key pair
3. Re-login once to activate docker group membership
4. Run your first container or bring up a Compose stack immediately

cloudimg Support

24/7 technical support by email and live chat. Our engineers assist with container deployment, image building, Compose orchestration, storage configuration, engine upgrades, and AWS integration questions.

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