Docker Volume Mount Regex for Go
/^\/?[a-zA-Z0-9._\-\/]+:\/?[a-zA-Z0-9._\-\/]+(?::r[ow])?$/iWhat this pattern does
This page provides a well-structured, multi-part regular expression for matching docker volume mount, ported and verified for Go. A rigorously tested regex reduces debugging time and protects your application from edge-case failures. The snippet below is ready to drop into your Go project — whether you're validating in a Gin handler, a gRPC service, or a command-line tool.
Go Implementation
// Docker Volume Mount
// ReDoS-safe | RegexVault — Dev & Systems > Docker
package validation
import "regexp"
var dockerVolumeMountRe = regexp.MustCompile(`^\/?[a-zA-Z0-9._\-\/]+:\/?[a-zA-Z0-9._\-\/]+(?::r[ow])?$`)
func ValidateDockerVolumeMount(s string) bool {
return dockerVolumeMountRe.MatchString(s)
}
// Example
// fmt.Println(ValidateDockerVolumeMount("/host/path:/container/path")) // trueTest 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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