const (
    FailHeader = "x-istio-backend-fail"
    FailBody   = "Bad request from backend."
)

const (
    FailedRequestTest uint16 = iota
    FaultInjectTest
    NetworkFailureTest
    XDSTest
    IstioAuthnTestOriginRejectNoJwt
    IstioAuthnTestPeerRejectNoJwt
    IstioAuthnTestPeerRejectNoMtls
    IstioAuthnTestPeerRejectNoTLS
    RouteDirectiveTest
    DynamicAttributeTest
    DynamicListenerTest
    PilotPluginTest
    PilotPluginTCPTest
    PilotPluginTLSTest
    PilotMCPTest
    RbacGlobalPermissiveTest
    RbacPolicyPermissiveTest
    GatewayTest
    SidecarTest
    SidecarConsumerOnlyTest
    TracingHeaderTest
    STSTest
    STSCacheTest
    STSRenewTest
    STSFailureTest
    STSTimeoutTest
    STSServerCacheTest
    STSShortLivedCacheTest
    SDSTest
    SDSCertRotation
    CSRFailure
    BadCSRResponse
)

var (
    // ISTIO_OUT environment variable
    // nolint: golint, stylecheck
    ISTIO_OUT Variable = "ISTIO_OUT"

    // LOCAL_OUT environment variable
    // nolint: golint, stylecheck
    LOCAL_OUT Variable = "LOCAL_OUT"

    // REPO_ROOT environment variable
    // nolint: golint, stylecheck
    REPO_ROOT Variable = "REPO_ROOT"

    // HUB is the Docker hub to be used for images.
    // nolint: golint, stylecheck
    HUB Variable = "HUB"

    // TAG is the Docker tag to be used for images.
    // nolint: golint, stylecheck
    TAG Variable = "TAG"

    // BITNAMIHUB is the Docker registry to be used for the bitnami images.
    // nolint: golint
    BITNAMIHUB Variable = "BITNAMIHUB"

    // PULL_POLICY is the image pull policy to use when rendering templates.
    // nolint: golint, stylecheck
    PULL_POLICY Variable = "PULL_POLICY"

    // KUBECONFIG is the list of Kubernetes configuration files. If configuration files are specified on
    // the command-line, that takes precedence.
    // nolint: golint, stylecheck
    KUBECONFIG Variable = "KUBECONFIG"

    // IstioSrc is the location of istio source ($TOP/src/istio.io/istio
    IstioSrc = REPO_ROOT.ValueOrDefaultFunc(getDefaultIstioSrc)

    // IstioOut is the location of the output directory ($TOP/out)
    IstioOut = verifyFile(ISTIO_OUT, ISTIO_OUT.ValueOrDefaultFunc(getDefaultIstioOut))

    // LocalOut is the location of the output directory for the OS we are running in,
    // not necessarily the OS we are building for
    LocalOut = verifyFile(LOCAL_OUT, LOCAL_OUT.ValueOrDefaultFunc(getDefaultIstioOut))

    // ChartsDir is the Kubernetes Helm chart directory in the repository
    ChartsDir = path.Join(IstioSrc, "install/kubernetes/helm")

    // BookInfoRoot is the root folder for the bookinfo samples
    BookInfoRoot = path.Join(IstioSrc, "samples/bookinfo")

    // BookInfoKube is the book info folder that contains Yaml deployment files.
    BookInfoKube = path.Join(BookInfoRoot, "platform/kube")

    // ServiceAccountFilePath is the helm service account file.
    ServiceAccountFilePath = path.Join(IstioSrc, "pkg/test/framework/components/redis/service_account.yaml")

    // OtelCollectorInstallFilePath is the OpenTelemetry installation file.
    OtelCollectorInstallFilePath = path.Join(IstioSrc, "pkg/test/framework/components/opentelemetry/opentelemetry-collector.yaml")
    // RedisInstallFilePath is the redis installation file.
    RedisInstallFilePath = path.Join(IstioSrc, "pkg/test/framework/components/redis/redis.yaml")

    // StackdriverInstallFilePath is the stackdriver installation file.
    StackdriverInstallFilePath = path.Join(IstioSrc, "pkg/test/framework/components/stackdriver/stackdriver.yaml")

    // GCEMetadataServerInstallFilePath is the GCE Metadata Server installation file.
    GCEMetadataServerInstallFilePath = path.Join(IstioSrc, "pkg/test/framework/components/gcemetadata/gce_metadata_server.yaml")
)

var (

    // Root folder of this project
    // This relies on the fact this file is 3 levels up from the root; if this changes, adjust the path below
    Root = filepath.Join(filepath.Dir(b), "../../..")
)

type HTTPServer struct {
    // contains filtered or unexported fields
}

type Ports struct {
    ClientProxyPort uint16
    ServerProxyPort uint16
    TCPProxyPort    uint16
    AdminPort       uint16
    BackendPort     uint16
    DiscoveryPort   uint16
    STSPort         uint16
    ExtraPort       uint16

    // Pilot ports
    PilotGrpcPort uint16
    PilotHTTPPort uint16
}

type TestSetup struct {

    // EnvoyTemplate is the bootstrap config used by envoy.
    EnvoyTemplate string

    // EnvoyParams contain extra envoy parameters to pass in the CLI (cluster, node)
    EnvoyParams []string

    // EnvoyConfigOpt allows passing additional parameters to the EnvoyTemplate
    EnvoyConfigOpt map[string]interface{}

    // IstioSrc is the base directory of istio sources. May be set for finding testdata or
    // other files in the source tree
    IstioSrc string

    // IstioOut is the base output directory.
    IstioOut string

    // AccessLogPath is the access log path for Envoy
    AccessLogPath string

    // Dir is the working dir for envoy
    Dir string
    // contains filtered or unexported fields
}

type Variable string