Golang Docker API

docker_golang_api_advantages:
  - programmatic_control:
      description: >
        The Go API allows developers to programmatically interact with Docker, enabling
        seamless automation and integration into applications. This provides more flexibility
        than manually executing Docker CLI commands.
      url: https://pkg.go.dev/github.com/docker/docker/client
  - fine_grained_control:
      description: >
        The Go API provides low-level control over Docker objects (e.g., containers, images,
        networks, volumes), allowing detailed customization of workflows.
      url: https://docs.docker.com/engine/api/
  - error_handling:
      description: >
        With the Go API, developers can implement robust and precise error handling directly in
        their applications, unlike parsing CLI error messages.
      url: https://pkg.go.dev/github.com/docker/docker/client#Client
  - integration_with_go_apps:
      description: >
        The Go API seamlessly integrates with Go applications, eliminating the need to
        invoke external processes or parse CLI output.
      url: https://pkg.go.dev/github.com/docker/docker/client
  - asynchronous_operations:
      description: >
        The Go API supports non-blocking, asynchronous operations for tasks such as
        container creation, which can improve efficiency in complex workflows.
      url: https://docs.docker.com/engine/api/v1.41/
  - custom_tooling:
      description: >
        Developers can create custom tools tailored to specific use cases using the API,
        such as deployment pipelines, monitoring tools, and container orchestration systems.
      url: https://pkg.go.dev/github.com/docker/docker
  - access_to_events:
      description: >
        The Go API enables subscribing to Docker events, such as container start/stop or
        image pull completion, which allows for real-time event-driven workflows.
      url: https://docs.docker.com/engine/api/v1.41/#tag/System/operation/SystemEvents
  - cross_platform_compatibility:
      description: >
        Applications built with the Go API can interact with Docker on any platform
        (Linux, macOS, Windows), ensuring consistent behavior across environments.
      url: https://pkg.go.dev/github.com/docker/docker
  - reduced_overhead:
      description: >
        By using the Go API, developers avoid spawning new processes to execute CLI commands,
        reducing latency and improving performance.
      url: https://pkg.go.dev/github.com/docker/docker
  - version_compatibility:
      description: >
        The Go API allows specifying the Docker API version to ensure compatibility
        with specific Docker Engine versions, providing greater control over behavior.
      url: https://docs.docker.com/engine/api/version-history/

Cookbook

# Status
systemctl status docker.service

# Stop
ps axf | grep docker | grep -v grep | awk '{print "kill -9 " $1}' | sudo sh
systemctl stop docker

# Start
systemctl start docker

# The Bad Parts
* https://dagster.io/blog/fast-deploys-with-pex-and-docker

# Verify Certificate Chain
openssl verify -CAfile RootCert.pem -untrusted Intermediate.pem UserCert.pem

# Verify Self-Signed Certificate
openssl verify -CAfile test.crt test.crt

QA

Error guessing is a testing technique that leverages the tester’s experience, intuition, and knowledge of the system to predict where defects might occur. Here's a general methodology:

Docker - sgml/signature GitHub Wiki

Golang Docker API

Cookbook

QA

Daemon

Engine

Mutual TLS

Client

Troubleshooting

Five W's

Internals

Optimized Images

Commands

Exec

Volume Mappings

Concepts

YAML

Debugging

Directives

Environment Variables

User/Group Permissions

Race Conditions

Wordpress

Postgres

Docker Engine API

Compose

Inspect

Debian

Network

Clustering

File/Directory/Volume Bind Mounts

X11

Containers

Startup/Shutdown

Daemon

Compile from Source(s)

Gotchas

Git Commit in a Docker Container

Environment Variables

MTLS

Postgresql.conf

References

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