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" dockerBasePath = "/var/lib/docker" volumesConfigPath = dockerBasePath + "/volumes" containerStoragePath = dockerBasePath + "/containers" runtimePath = "/var/run/docker" execDriverPath = runtimePath + "/execdriver/native" workingDirectory string // isLocalDaemon is true if the daemon under test is on the same // host as the CLI. isLocalDaemon bool // daemonPlatform is held globally so that tests can make intelligent // decisions on how to configure themselves according to the platform // of the daemon. This is initialised in docker_utils by sending // a version call to the daemon and examining the response header. daemonPlatform string ) func init() { if dockerBin := os.Getenv("DOCKER_BINARY"); dockerBin != "" { dockerBinary = dockerBin } var err error dockerBinary, err = exec.LookPath(dockerBinary) if err != nil { fmt.Printf("ERROR: couldn't resolve full path to the Docker binary (%v)", err) os.Exit(1) } if registryImage := os.Getenv("REGISTRY_IMAGE"); registryImage != "" { registryImageName = registryImage } if registry := os.Getenv("REGISTRY_URL"); registry != "" { privateRegistryURL = registry } workingDirectory, _ = os.Getwd() // Deterministically working out the environment in which CI is running // to evaluate whether the daemon is local or remote is not possible through // a build tag. // // For example Windows CI under Jenkins test the 64-bit // Windows binary build with the daemon build tag, but calls a remote // Linux daemon. // // We can't just say if Windows then assume the daemon is local as at // some point, we will be testing the Windows CLI against a Windows daemon. // // Similarly, it will be perfectly valid to also run CLI tests from // a Linux CLI (built with the daemon tag) against a Windows daemon. if len(os.Getenv("DOCKER_REMOTE_DAEMON")) > 0 { fmt.Println("INFO: Testing against a remote daemon") isLocalDaemon = false } else { fmt.Println("INFO: Testing against a local daemon") isLocalDaemon = true } }