REGEXVAULTv2.0
Dev & Systems/Docker
Verified Safe

Docker Volume Mount Regex for Go

/^\/?[a-zA-Z0-9._\-\/]+:\/?[a-zA-Z0-9._\-\/]+(?::r[ow])?$/i

What this pattern does

This page provides a well-structured, multi-part regular expression for matching docker volume mount, ported and verified for Go. A rigorously tested regex reduces debugging time and protects your application from edge-case failures. The snippet below is ready to drop into your Go project — whether you're validating in a Gin handler, a gRPC service, or a command-line tool.

Go Implementation

Go
// Docker Volume Mount
// ReDoS-safe | RegexVault — Dev & Systems > Docker

package validation

import "regexp"

var dockerVolumeMountRe = regexp.MustCompile(`^\/?[a-zA-Z0-9._\-\/]+:\/?[a-zA-Z0-9._\-\/]+(?::r[ow])?$`)

func ValidateDockerVolumeMount(s string) bool {
    return dockerVolumeMountRe.MatchString(s)
}

// Example
// fmt.Println(ValidateDockerVolumeMount("/host/path:/container/path")) // true

Test Cases

Matches (Valid)
Rejects (Invalid)
/host/path:/container/path:/container/path
./data:/app/data:ro/host:/container/:/extra
myvolume:/data/host path:/container
/etc/nginx:/etc/nginx:ro/host:/container:invalid

When to use this pattern

This pattern is drawn from the Dev & Systems > Docker category and carries a ReDoS-safe certification. That matters for Go developers because Go's RE2 engine is inherently safe from catastrophic backtracking, but this pattern has been additionally verified for correctness. RegexVault audits patterns against known backtracking attack vectors, ensuring you have the necessary context before using this regex in a high-stakes production environment.

Common Pitfalls

Bind-mounting /var/run/docker.sock grants containers full Docker daemon access — equivalent to root on the host.

Technical Notes

Formats: named volume (name:/path), bind mount (/host:/container), or anonymous. Mode: ro=read-only, rw=read-write, z/Z=SELinux relabeling. z is shared between containers; Z is private.

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