package main import ( "fmt" "os" "os/exec" ) var ( // the docker binary to use dockerBinary = "docker" // the private registry image to use for tests involving the registry registryImageName = "registry" // the private registry to use for tests privateRegistryURL = "127.0.0.1:5000" execDriverPath = "/var/lib/docker/execdriver/native" volumesConfigPath = "/var/lib/docker/volumes" workingDirectory string ) func init() { if dockerBin := os.Getenv("DOCKER_BINARY"); dockerBin != "" { dockerBinary = dockerBin } else { whichCmd := exec.Command("which", "docker") out, _, err := runCommandWithOutput(whichCmd) if err == nil { dockerBinary = stripTrailingCharacters(out) } else { fmt.Printf("ERROR: couldn't resolve full path to the Docker binary") os.Exit(1) } } if registryImage := os.Getenv("REGISTRY_IMAGE"); registryImage != "" { registryImageName = registryImage } if registry := os.Getenv("REGISTRY_URL"); registry != "" { privateRegistryURL = registry } workingDirectory, _ = os.Getwd() }