| package main |
| |
| import ( |
| "fmt" |
| "io/ioutil" |
| "net/http" |
| "os" |
| "os/exec" |
| "strings" |
| "time" |
| |
| "github.com/go-check/check" |
| ) |
| |
| type testCondition func() bool |
| |
| type testRequirement struct { |
| Condition testCondition |
| SkipMessage string |
| } |
| |
| // List test requirements |
| var ( |
| DaemonIsWindows = testRequirement{ |
| func() bool { return daemonPlatform == "windows" }, |
| "Test requires a Windows daemon", |
| } |
| DaemonIsLinux = testRequirement{ |
| func() bool { return daemonPlatform == "linux" }, |
| "Test requires a Linux daemon", |
| } |
| NotArm = testRequirement{ |
| func() bool { return os.Getenv("DOCKER_ENGINE_GOARCH") != "arm" }, |
| "Test requires a daemon not running on ARM", |
| } |
| NotPpc64le = testRequirement{ |
| func() bool { return os.Getenv("DOCKER_ENGINE_GOARCH") != "ppc64le" }, |
| "Test requires a daemon not running on ppc64le", |
| } |
| SameHostDaemon = testRequirement{ |
| func() bool { return isLocalDaemon }, |
| "Test requires docker daemon to run on the same machine as CLI", |
| } |
| UnixCli = testRequirement{ |
| func() bool { return isUnixCli }, |
| "Test requires posix utilities or functionality to run.", |
| } |
| ExecSupport = testRequirement{ |
| func() bool { return supportsExec }, |
| "Test requires 'docker exec' capabilities on the tested daemon.", |
| } |
| Network = testRequirement{ |
| func() bool { |
| // Set a timeout on the GET at 15s |
| var timeout = time.Duration(15 * time.Second) |
| var url = "https://hub.docker.com" |
| |
| client := http.Client{ |
| Timeout: timeout, |
| } |
| |
| resp, err := client.Get(url) |
| if err != nil && strings.Contains(err.Error(), "use of closed network connection") { |
| panic(fmt.Sprintf("Timeout for GET request on %s", url)) |
| } |
| if resp != nil { |
| resp.Body.Close() |
| } |
| return err == nil |
| }, |
| "Test requires network availability, environment variable set to none to run in a non-network enabled mode.", |
| } |
| Apparmor = testRequirement{ |
| func() bool { |
| buf, err := ioutil.ReadFile("/sys/module/apparmor/parameters/enabled") |
| return err == nil && len(buf) > 1 && buf[0] == 'Y' |
| }, |
| "Test requires apparmor is enabled.", |
| } |
| RegistryHosting = testRequirement{ |
| func() bool { |
| // for now registry binary is built only if we're running inside |
| // container through `make test`. Figure that out by testing if |
| // registry binary is in PATH. |
| _, err := exec.LookPath(v2binary) |
| return err == nil |
| }, |
| fmt.Sprintf("Test requires an environment that can host %s in the same host", v2binary), |
| } |
| NotaryHosting = testRequirement{ |
| func() bool { |
| // for now notary binary is built only if we're running inside |
| // container through `make test`. Figure that out by testing if |
| // notary-server binary is in PATH. |
| _, err := exec.LookPath(notaryServerBinary) |
| return err == nil |
| }, |
| fmt.Sprintf("Test requires an environment that can host %s in the same host", notaryServerBinary), |
| } |
| NotaryServerHosting = testRequirement{ |
| func() bool { |
| // for now notary-server binary is built only if we're running inside |
| // container through `make test`. Figure that out by testing if |
| // notary-server binary is in PATH. |
| _, err := exec.LookPath(notaryServerBinary) |
| return err == nil |
| }, |
| fmt.Sprintf("Test requires an environment that can host %s in the same host", notaryServerBinary), |
| } |
| NotOverlay = testRequirement{ |
| func() bool { |
| return !strings.HasPrefix(daemonStorageDriver, "overlay") |
| }, |
| "Test requires underlying root filesystem not be backed by overlay.", |
| } |
| |
| Devicemapper = testRequirement{ |
| func() bool { |
| return strings.HasPrefix(daemonStorageDriver, "devicemapper") |
| }, |
| "Test requires underlying root filesystem to be backed by devicemapper.", |
| } |
| |
| IPv6 = testRequirement{ |
| func() bool { |
| cmd := exec.Command("test", "-f", "/proc/net/if_inet6") |
| |
| if err := cmd.Run(); err != nil { |
| return true |
| } |
| return false |
| }, |
| "Test requires support for IPv6", |
| } |
| NotGCCGO = testRequirement{ |
| func() bool { |
| out, err := exec.Command("go", "version").Output() |
| if err == nil && strings.Contains(string(out), "gccgo") { |
| return false |
| } |
| return true |
| }, |
| "Test requires native Golang compiler instead of GCCGO", |
| } |
| UserNamespaceInKernel = testRequirement{ |
| func() bool { |
| if _, err := os.Stat("/proc/self/uid_map"); os.IsNotExist(err) { |
| /* |
| * This kernel-provided file only exists if user namespaces are |
| * supported |
| */ |
| return false |
| } |
| |
| // We need extra check on redhat based distributions |
| if f, err := os.Open("/sys/module/user_namespace/parameters/enable"); err == nil { |
| b := make([]byte, 1) |
| _, _ = f.Read(b) |
| if string(b) == "N" { |
| return false |
| } |
| return true |
| } |
| |
| return true |
| }, |
| "Kernel must have user namespaces configured and enabled.", |
| } |
| NotUserNamespace = testRequirement{ |
| func() bool { |
| root := os.Getenv("DOCKER_REMAP_ROOT") |
| if root != "" { |
| return false |
| } |
| return true |
| }, |
| "Test cannot be run when remapping root", |
| } |
| ) |
| |
| // testRequires checks if the environment satisfies the requirements |
| // for the test to run or skips the tests. |
| func testRequires(c *check.C, requirements ...testRequirement) { |
| for _, r := range requirements { |
| if !r.Condition() { |
| c.Skip(r.SkipMessage) |
| } |
| } |
| } |