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package cache // import "github.com/docker/docker/image/cache"
import (
"strings"
"github.com/containerd/platforms"
"github.com/docker/docker/api/types/container"
ocispec "github.com/opencontainers/image-spec/specs-go/v1"
)
func comparePlatform(builderPlatform, imagePlatform ocispec.Platform) bool {
// On Windows, only check the Major and Minor versions.
// The Build and Revision compatibility depends on whether `process` or
// `hyperv` isolation used.
//
// Fixes https://github.com/moby/moby/issues/47307
if builderPlatform.OS == "windows" && imagePlatform.OS == builderPlatform.OS {
// OSVersion format is:
// Major.Minor.Build.Revision
builderParts := strings.Split(builderPlatform.OSVersion, ".")
imageParts := strings.Split(imagePlatform.OSVersion, ".")
if len(builderParts) >= 3 && len(imageParts) >= 3 {
// Keep only Major & Minor.
builderParts[0] = imageParts[0]
builderParts[1] = imageParts[1]
imagePlatform.OSVersion = strings.Join(builderParts, ".")
}
}
return platforms.Only(builderPlatform).Match(imagePlatform)
}
// compare two Config struct. Do not container-specific fields:
// - Image
// - Hostname
// - Domainname
// - MacAddress
func compare(a, b *container.Config) bool {
if a == nil || b == nil {
return false
}
if len(a.Env) != len(b.Env) {
return false
}
if len(a.Cmd) != len(b.Cmd) {
return false
}
if len(a.Entrypoint) != len(b.Entrypoint) {
return false
}
if len(a.Shell) != len(b.Shell) {
return false
}
if len(a.ExposedPorts) != len(b.ExposedPorts) {
return false
}
if len(a.Volumes) != len(b.Volumes) {
return false
}
if len(a.Labels) != len(b.Labels) {
return false
}
if len(a.OnBuild) != len(b.OnBuild) {
return false
}
for i := 0; i < len(a.Env); i++ {
if a.Env[i] != b.Env[i] {
return false
}
}
for i := 0; i < len(a.OnBuild); i++ {
if a.OnBuild[i] != b.OnBuild[i] {
return false
}
}
for i := 0; i < len(a.Cmd); i++ {
if a.Cmd[i] != b.Cmd[i] {
return false
}
}
for i := 0; i < len(a.Entrypoint); i++ {
if a.Entrypoint[i] != b.Entrypoint[i] {
return false
}
}
for i := 0; i < len(a.Shell); i++ {
if a.Shell[i] != b.Shell[i] {
return false
}
}
for k := range a.ExposedPorts {
if _, exists := b.ExposedPorts[k]; !exists {
return false
}
}
for key := range a.Volumes {
if _, exists := b.Volumes[key]; !exists {
return false
}
}
for k, v := range a.Labels {
if v != b.Labels[k] {
return false
}
}
if a.AttachStdin != b.AttachStdin {
return false
}
if a.AttachStdout != b.AttachStdout {
return false
}
if a.AttachStderr != b.AttachStderr {
return false
}
if a.NetworkDisabled != b.NetworkDisabled {
return false
}
if a.Tty != b.Tty {
return false
}
if a.OpenStdin != b.OpenStdin {
return false
}
if a.StdinOnce != b.StdinOnce {
return false
}
if a.ArgsEscaped != b.ArgsEscaped {
return false
}
if a.User != b.User {
return false
}
if a.WorkingDir != b.WorkingDir {
return false
}
if a.StopSignal != b.StopSignal {
return false
}
if (a.StopTimeout == nil) != (b.StopTimeout == nil) {
return false
}
if a.StopTimeout != nil && b.StopTimeout != nil {
if *a.StopTimeout != *b.StopTimeout {
return false
}
}
if (a.Healthcheck == nil) != (b.Healthcheck == nil) {
return false
}
if a.Healthcheck != nil && b.Healthcheck != nil {
if a.Healthcheck.Interval != b.Healthcheck.Interval {
return false
}
if a.Healthcheck.StartInterval != b.Healthcheck.StartInterval {
return false
}
if a.Healthcheck.StartPeriod != b.Healthcheck.StartPeriod {
return false
}
if a.Healthcheck.Timeout != b.Healthcheck.Timeout {
return false
}
if a.Healthcheck.Retries != b.Healthcheck.Retries {
return false
}
if len(a.Healthcheck.Test) != len(b.Healthcheck.Test) {
return false
}
for i := 0; i < len(a.Healthcheck.Test); i++ {
if a.Healthcheck.Test[i] != b.Healthcheck.Test[i] {
return false
}
}
}
return true
}
|
