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118 lines
3.6 KiB
Go
118 lines
3.6 KiB
Go
package main
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import (
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"encoding/json"
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"fmt"
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"os"
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"os/exec"
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"github.com/docker/docker/pkg/reexec"
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)
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var (
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// the docker binary to use
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dockerBinary = "docker"
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// the private registry image to use for tests involving the registry
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registryImageName = "registry"
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// the private registry to use for tests
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privateRegistryURL = "127.0.0.1:5000"
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runtimePath = "/var/run/docker"
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execDriverPath = runtimePath + "/execdriver/native"
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workingDirectory string
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// isLocalDaemon is true if the daemon under test is on the same
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// host as the CLI.
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isLocalDaemon bool
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// daemonPlatform is held globally so that tests can make intelligent
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// decisions on how to configure themselves according to the platform
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// of the daemon. This is initialised in docker_utils by sending
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// a version call to the daemon and examining the response header.
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daemonPlatform string
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// windowsDaemonKV is used on Windows to distinguish between different
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// versions. This is necessary to enable certain tests based on whether
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// the platform supports it. For example, Windows Server 2016 TP3 does
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// not support volumes, but TP4 does.
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windowsDaemonKV int
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// daemonDefaultImage is the name of the default image to use when running
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// tests. This is platform dependent.
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daemonDefaultImage string
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// For a local daemon on Linux, these values will be used for testing
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// user namespace support as the standard graph path(s) will be
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// appended with the root remapped uid.gid prefix
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dockerBasePath string
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volumesConfigPath string
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containerStoragePath string
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)
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const (
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// WindowsBaseImage is the name of the base image for Windows testing
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WindowsBaseImage = "windowsservercore"
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// DefaultImage is the name of the base image for the majority of tests that
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// are run across suites
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DefaultImage = "busybox"
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)
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func init() {
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reexec.Init()
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if dockerBin := os.Getenv("DOCKER_BINARY"); dockerBin != "" {
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dockerBinary = dockerBin
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}
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var err error
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dockerBinary, err = exec.LookPath(dockerBinary)
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if err != nil {
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fmt.Printf("ERROR: couldn't resolve full path to the Docker binary (%v)", err)
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os.Exit(1)
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}
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if registryImage := os.Getenv("REGISTRY_IMAGE"); registryImage != "" {
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registryImageName = registryImage
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}
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if registry := os.Getenv("REGISTRY_URL"); registry != "" {
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privateRegistryURL = registry
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}
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workingDirectory, _ = os.Getwd()
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// Deterministically working out the environment in which CI is running
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// to evaluate whether the daemon is local or remote is not possible through
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// a build tag.
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//
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// For example Windows CI under Jenkins test the 64-bit
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// Windows binary build with the daemon build tag, but calls a remote
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// Linux daemon.
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//
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// We can't just say if Windows then assume the daemon is local as at
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// some point, we will be testing the Windows CLI against a Windows daemon.
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//
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// Similarly, it will be perfectly valid to also run CLI tests from
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// a Linux CLI (built with the daemon tag) against a Windows daemon.
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if len(os.Getenv("DOCKER_REMOTE_DAEMON")) > 0 {
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isLocalDaemon = false
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} else {
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isLocalDaemon = true
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}
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// This is only used for a tests with local daemon true (Linux-only today)
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// default is "/var/lib/docker", but we'll try and ask the
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// /info endpoint for the specific root dir
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dockerBasePath = "/var/lib/docker"
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type Info struct {
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DockerRootDir string
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}
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var i Info
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status, b, err := sockRequest("GET", "/info", nil)
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if err == nil && status == 200 {
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if err = json.Unmarshal(b, &i); err == nil {
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dockerBasePath = i.DockerRootDir
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}
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}
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volumesConfigPath = dockerBasePath + "/volumes"
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containerStoragePath = dockerBasePath + "/containers"
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}
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