func TestFetchsMetadata(t *testing.T) {
Convey("Given a list of datasources and a timeout duration", t, func() {
mockGCEServer := testutil.NewMockServer(func(w http.ResponseWriter, r *http.Request) {
var json_path string
if r.Header.Get("Metadata-Flavor") != "Google" {
http.Error(w, "metadata header is not found", http.StatusBadRequest)
return
}
testMetadataDir := "provider/gce/test_metadata"
if strings.Contains(r.URL.String(), "project") {
json_path = filepath.Join(testMetadataDir, "GCEv1_project.json")
} else if strings.Contains(r.URL.String(), "instance") {
json_path = filepath.Join(testMetadataDir, "GCEv1_instance.json")
} else {
http.Error(w, "requested resource is not found", http.StatusNotFound)
return
}
buf, err := ioutil.ReadFile(json_path)
if err != nil {
http.Error(w, err.Error(), http.StatusBadRequest)
return
}
w.Write(buf)
})
mockGCEProvider := &gce.MetadataService{
URL: provider.FormatURL(mockGCEServer.URL + "/%v/%v"),
}
mockDataSources := map[string]datasrc.Provider{
"gce": mockGCEProvider,
}
timeout := time.Millisecond * 500
Convey("It should find the available data source provider", func() {
provider, err := datasrc.FindProvider(mockDataSources, timeout)
So(err, ShouldBeNil)
So(provider, ShouldEqual, mockGCEProvider)
})
Convey("When datasources are unavailable it should timeout", func() {
_, err := datasrc.FindProvider(map[string]datasrc.Provider{}, 0*time.Second)
So(err, ShouldEqual, datasrc.ErrDatasourceRetrievalTimeout)
})
})
}
func main() {
// TODO(tmrts): Add command-line flags
// TODO(tmrts): Build a logger hierarchy
hasRoot, err := HasRootPrivileges()
if err != nil {
flog.Fatal("Failed checking user privileges",
flog.Fields{
Event: "main.HasRootPrivileges",
Error: err,
},
)
}
if !hasRoot {
flog.Fatal("current user doesn't have root privileges")
}
centOS := distro.CentOS(sys.DefaultExecutor)
if err := InitializeContextualization(); err != nil {
flog.Fatal("Failed to start contextualization",
flog.Fields{
Event: "main.InitializeContextualization",
Error: err,
},
)
}
providers := datasrc.SupportedProviders()
p, err := datasrc.FindProvider(providers, 5*time.Second)
if err != nil {
flog.Fatal("Failed to start contextualization",
flog.Fields{
Event: "datasrc.FindProvider",
Error: err,
},
)
}
m, err := p.FetchMetadata()
if err != nil {
flog.Fatal("Failed to fetch meta-data from provider",
flog.Fields{
Event: "datasrc.Provider.FetchMetadata",
Error: err,
},
flog.Details{
"provider": p,
},
)
}
u, err := p.FetchUserdata()
if err != nil {
flog.Fatal("Failed to fetch user-data from provider",
flog.Fields{
Event: "datasrc.Provider.FetchUserdata",
Error: err,
},
flog.Details{
"provider": p,
},
)
}
if err := centOS.ConsumeMetadata(m); err != nil {
flog.Fatal("Failed to consume meta-data",
flog.Fields{
Event: "distro.Implementation.ConsumeMetadata",
Error: err,
},
flog.Details{
"distribution": "CentOS",
},
)
}
if err := centOS.ConsumeUserdata(u); err != nil {
flog.Fatal("Failed to consume user-data",
flog.Fields{
Event: "distro.Implementation.ConsumeMetadata",
Error: err,
},
flog.Details{
"distribution": "CentOS",
},
)
}
if err := FinalizeContextualization(); err != nil {
flog.Fatal("Failed to finalize contextualization",
flog.Fields{
Event: "main.FinalizeContextualization",
Error: err,
},
)
}
}