selfcontainer

Documentation

Overview

Package selfcontainer detects the Docker container ID of the running process, so Miabi can recognise its own container and refuse to stop or delete it from the admin containers list — which would take the platform offline.

Index

• func Detect() string
• func Match(a, b string) bool

Functions

func Detect

func Detect() string

Detect returns the ID of the container the process runs in, or "" when it is not containerized. Resolution order, most to least reliable: MIABI_CONTAINER_ID, /proc/self/mountinfo (Docker bind-mounts /etc/hostname from /var/lib/docker/containers/<id>/), /proc/self/cgroup, hostname.

func Match

func Match(a, b string) bool

Match reports whether two container references identify the same container, tolerating the mix of short (12-char) and full (64-char) IDs Docker returns. It requires at least a 12-char overlap, so an empty reference never matches.