func TestExpose(t *testing.T) {
b := &Builder{flags: &BFlags{}, runConfig: &container.Config{}, disableCommit: true}
exposedPort := "80"
if err := expose(b, []string{exposedPort}, nil, ""); err != nil {
t.Fatalf("Error should be empty, got: %s", err.Error())
}
if b.runConfig.ExposedPorts == nil {
t.Fatalf("ExposedPorts should be set")
}
if len(b.runConfig.ExposedPorts) != 1 {
t.Fatalf("ExposedPorts should contain only 1 element. Got %s", b.runConfig.ExposedPorts)
}
portsMapping, err := nat.ParsePortSpec(exposedPort)
if err != nil {
t.Fatalf("Error when parsing port spec: %s", err.Error())
}
if _, ok := b.runConfig.ExposedPorts[portsMapping[0].Port]; !ok {
t.Fatalf("Port %s should be present. Got %s", exposedPort, b.runConfig.ExposedPorts)
}
}
// ValidatePort validates a string is in the expected format for a port definition
func ValidatePort(value string) (string, error) {
portMappings, err := nat.ParsePortSpec(value)
for _, portMapping := range portMappings {
if portMapping.Binding.HostIP != "" {
return "", fmt.Errorf("HostIP is not supported by a service.")
}
}
return value, err
}