oc set route-backends foo a=10 b=20 c=0
Adds describer and printer support for router.
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new file mode 100644 |
... | ... |
@@ -0,0 +1,585 @@ |
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+package set |
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+ |
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+import ( |
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+ "fmt" |
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+ "io" |
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+ "os" |
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+ "strconv" |
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+ "strings" |
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+ "text/tabwriter" |
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+ |
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+ "github.com/golang/glog" |
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+ "github.com/spf13/cobra" |
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+ |
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+ kapi "k8s.io/kubernetes/pkg/api" |
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+ "k8s.io/kubernetes/pkg/api/meta" |
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+ "k8s.io/kubernetes/pkg/api/unversioned" |
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+ kcmdutil "k8s.io/kubernetes/pkg/kubectl/cmd/util" |
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+ "k8s.io/kubernetes/pkg/kubectl/resource" |
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+ "k8s.io/kubernetes/pkg/runtime" |
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+ "k8s.io/kubernetes/pkg/util/sets" |
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+ |
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+ cmdutil "github.com/openshift/origin/pkg/cmd/util" |
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+ "github.com/openshift/origin/pkg/cmd/util/clientcmd" |
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+ routeapi "github.com/openshift/origin/pkg/route/api" |
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+) |
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+ |
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+const ( |
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+ backendsLong = ` |
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+Set and adjust route backends |
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+ |
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+Routes may have one or more optional backend services with weights controlling how much |
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+traffic flows to each service. Traffic is assigned proportional to the combined weights |
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+of each backend. A weight of zero means that the backend will receive no traffic. If all |
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+weights are zero the route will not send traffic to any backends. |
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+ |
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+When setting backends, the first backend is the primary and the other backends are |
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+considered alternates. For example: |
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+ |
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+ $ %[1]s route-backends web prod=99 canary=1 |
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+ |
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+will set the primary backend to service "prod" with a weight of 99 and the first |
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+alternate backend to service "canary" with a weight of 1. This means 99%% of traffic will |
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+be sent to the service "prod". |
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+ |
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+The --adjust flag allows you to alter the weight of an individual service relative to |
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+itself or to the primary backend. Specifying a percentage will adjust the backend |
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+relative to either the primary or the first alternate (if you specify the primary). |
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+If there are other backends their weights will be kept proportional to the changed. |
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+ |
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+Not all routers may support multiple or weighted backends.` |
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+ |
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+ backendsExample = ` # Print the backends on the route 'web' |
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+ %[1]s route-backends web |
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+ |
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+ # Set two backend services on route 'web' with 2/3rds of traffic going to 'a' |
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+ %[1]s route-backends web a=2 b=1 |
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+ |
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+ # Increase the traffic percentage going to b by 10%% relative to a |
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+ %[1]s route-backends web --adjust b=+10%% |
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+ |
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+ # Set traffic percentage going to b to 10%% of the traffic going to a |
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+ %[1]s route-backends web --adjust b=10%% |
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+ |
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+ # Set weight of b to 10 |
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+ %[1]s route-backends web --adjust b=10 |
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+ |
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+ # Set the weight to all backends to zero |
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+ %[1]s route-backends web --zero` |
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+) |
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+ |
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+type BackendsOptions struct { |
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+ Out io.Writer |
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+ Err io.Writer |
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+ |
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+ Filenames []string |
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+ Selector string |
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+ All bool |
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+ |
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+ Builder *resource.Builder |
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+ Infos []*resource.Info |
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+ |
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+ Encoder runtime.Encoder |
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+ |
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+ ShortOutput bool |
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+ Mapper meta.RESTMapper |
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+ OutputVersion unversioned.GroupVersion |
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+ |
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+ PrintTable bool |
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+ PrintObject func(runtime.Object) error |
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+ |
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+ Transform BackendTransform |
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+} |
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+ |
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+// NewCmdRouteBackends implements the set route-backends command |
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+func NewCmdRouteBackends(fullName string, f *clientcmd.Factory, out, errOut io.Writer) *cobra.Command { |
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+ options := &BackendsOptions{ |
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+ Out: out, |
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+ Err: errOut, |
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+ } |
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+ cmd := &cobra.Command{ |
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+ Use: "route-backends ROUTENAME [--zero|--equal] [--adjust] SERVICE=WEIGHT[%] [...]", |
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+ Short: "Update the backends for a route", |
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+ Long: fmt.Sprintf(backendsLong, fullName), |
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+ Example: fmt.Sprintf(backendsExample, fullName), |
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+ Run: func(cmd *cobra.Command, args []string) { |
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+ kcmdutil.CheckErr(options.Complete(f, cmd, args)) |
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+ kcmdutil.CheckErr(options.Validate()) |
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+ err := options.Run() |
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+ if err == cmdutil.ErrExit { |
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+ os.Exit(1) |
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+ } |
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+ kcmdutil.CheckErr(err) |
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+ }, |
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+ } |
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+ |
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+ kcmdutil.AddPrinterFlags(cmd) |
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+ cmd.Flags().StringVarP(&options.Selector, "selector", "l", options.Selector, "Selector (label query) to filter on") |
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+ cmd.Flags().BoolVar(&options.All, "all", options.All, "Select all resources in the namespace of the specified resource types") |
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+ cmd.Flags().StringSliceVarP(&options.Filenames, "filename", "f", options.Filenames, "Filename, directory, or URL to file to use to edit the resource.") |
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+ |
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+ cmd.Flags().BoolVar(&options.Transform.Adjust, "adjust", options.Transform.Adjust, "Adjust a single backend using an absolute or relative weight. If the primary backend is selected and there is more than one alternate an error will be returned.") |
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+ cmd.Flags().BoolVar(&options.Transform.Zero, "zero", options.Transform.Zero, "Set the weight of all backends to zero.") |
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+ cmd.Flags().BoolVar(&options.Transform.Equal, "equal", options.Transform.Equal, "Set the weight of all backends to 100.") |
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+ |
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+ cmd.MarkFlagFilename("filename", "yaml", "yml", "json") |
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+ |
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+ return cmd |
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+} |
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+ |
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+// Complete takes command line information to fill out BackendOptions or returns an error. |
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+func (o *BackendsOptions) Complete(f *clientcmd.Factory, cmd *cobra.Command, args []string) error { |
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+ cmdNamespace, explicit, err := f.DefaultNamespace() |
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+ if err != nil { |
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+ return err |
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+ } |
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+ |
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+ clientConfig, err := f.ClientConfig() |
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+ if err != nil { |
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+ return err |
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+ } |
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+ |
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+ o.OutputVersion, err = kcmdutil.OutputVersion(cmd, clientConfig.GroupVersion) |
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+ if err != nil { |
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+ return err |
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+ } |
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+ |
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+ var resources []string |
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+ for _, arg := range args { |
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+ if !strings.Contains(arg, "=") { |
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+ resources = append(resources, arg) |
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+ continue |
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+ } |
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+ input, err := ParseBackendInput(arg) |
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+ if err != nil { |
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+ return fmt.Errorf("invalid argument %q: %v", arg, err) |
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+ } |
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+ o.Transform.Inputs = append(o.Transform.Inputs, *input) |
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+ } |
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+ |
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+ o.PrintTable = o.Transform.Empty() |
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+ |
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+ mapper, typer := f.Object(false) |
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+ o.Builder = resource.NewBuilder(mapper, typer, resource.ClientMapperFunc(f.ClientForMapping), kapi.Codecs.UniversalDecoder()). |
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+ ContinueOnError(). |
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+ NamespaceParam(cmdNamespace).DefaultNamespace(). |
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+ FilenameParam(explicit, false, o.Filenames...). |
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+ SelectorParam(o.Selector). |
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+ SelectAllParam(o.All). |
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+ ResourceNames("route", resources...). |
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+ Flatten() |
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+ if len(resources) == 0 { |
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+ o.Builder.ResourceTypes("routes") |
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+ } |
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+ |
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+ output := kcmdutil.GetFlagString(cmd, "output") |
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+ if len(output) != 0 { |
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+ o.PrintObject = func(obj runtime.Object) error { return f.PrintObject(cmd, mapper, obj, o.Out) } |
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+ } |
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+ |
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+ o.Encoder = f.JSONEncoder() |
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+ o.ShortOutput = kcmdutil.GetFlagString(cmd, "output") == "name" |
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+ o.Mapper = mapper |
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+ |
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+ return nil |
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+} |
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+ |
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+// Validate verifies the provided options are valid or returns an error. |
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+func (o *BackendsOptions) Validate() error { |
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+ return o.Transform.Validate() |
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+} |
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+ |
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+// Run executes the BackendOptions or returns an error. |
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+func (o *BackendsOptions) Run() error { |
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+ infos := o.Infos |
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+ singular := len(o.Infos) <= 1 |
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+ if o.Builder != nil { |
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+ loaded, err := o.Builder.Do().IntoSingular(&singular).Infos() |
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+ if err != nil { |
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+ return err |
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+ } |
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+ infos = loaded |
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+ } |
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+ |
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+ if o.PrintTable && o.PrintObject == nil { |
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+ return o.printBackends(infos) |
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+ } |
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+ |
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+ patches := CalculatePatches(infos, o.Encoder, func(info *resource.Info) (bool, error) { |
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+ return UpdateBackendsForObject(info.Object, o.Transform.Apply) |
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+ }) |
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+ if singular && len(patches) == 0 { |
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+ return fmt.Errorf("%s/%s is not a deployment config or build config", infos[0].Mapping.Resource, infos[0].Name) |
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+ } |
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+ if o.PrintObject != nil { |
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+ object, err := resource.AsVersionedObject(infos, !singular, o.OutputVersion, kapi.Codecs.LegacyCodec(o.OutputVersion)) |
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+ if err != nil { |
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+ return err |
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+ } |
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+ return o.PrintObject(object) |
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+ } |
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+ |
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+ failed := false |
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+ for _, patch := range patches { |
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+ info := patch.Info |
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+ if patch.Err != nil { |
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+ failed = true |
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+ fmt.Fprintf(o.Err, "error: %s/%s %v\n", info.Mapping.Resource, info.Name, patch.Err) |
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+ continue |
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+ } |
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+ |
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+ if string(patch.Patch) == "{}" || len(patch.Patch) == 0 { |
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+ fmt.Fprintf(o.Err, "info: %s %q was not changed\n", info.Mapping.Resource, info.Name) |
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+ continue |
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+ } |
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+ |
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+ glog.V(4).Infof("Calculated patch %s", patch.Patch) |
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+ |
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+ obj, err := resource.NewHelper(info.Client, info.Mapping).Patch(info.Namespace, info.Name, kapi.StrategicMergePatchType, patch.Patch) |
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238 |
+ if err != nil { |
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+ handlePodUpdateError(o.Err, err, "altered") |
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+ failed = true |
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+ continue |
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+ } |
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+ |
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+ info.Refresh(obj, true) |
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+ kcmdutil.PrintSuccess(o.Mapper, o.ShortOutput, o.Out, info.Mapping.Resource, info.Name, "updated") |
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+ } |
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+ if failed { |
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+ return cmdutil.ErrExit |
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249 |
+ } |
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250 |
+ return nil |
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+} |
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252 |
+ |
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+// printBackends displays a tabular output of the backends for each object. |
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+func (o *BackendsOptions) printBackends(infos []*resource.Info) error { |
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+ w := tabwriter.NewWriter(o.Out, 0, 2, 2, ' ', 0) |
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256 |
+ defer w.Flush() |
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257 |
+ fmt.Fprintf(w, "NAME\tKIND\tTO\tWEIGHT\n") |
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258 |
+ for _, info := range infos { |
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259 |
+ _, err := UpdateBackendsForObject(info.Object, func(backends *Backends) error { |
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260 |
+ totalWeight := int32(0) |
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261 |
+ for _, b := range backends.Backends { |
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262 |
+ if b.Weight != nil { |
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+ totalWeight += *b.Weight |
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264 |
+ } |
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265 |
+ } |
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+ for _, b := range backends.Backends { |
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267 |
+ switch { |
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+ case b.Weight == nil: |
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269 |
+ fmt.Fprintf(w, "%s/%s\t%s\t%s\t%s\n", info.Mapping.Resource, info.Name, b.Kind, b.Name, "") |
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270 |
+ case totalWeight == 0, len(backends.Backends) == 1 && totalWeight != 0: |
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271 |
+ fmt.Fprintf(w, "%s/%s\t%s\t%s\t%d\n", info.Mapping.Resource, info.Name, b.Kind, b.Name, totalWeight) |
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272 |
+ default: |
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273 |
+ fmt.Fprintf(w, "%s/%s\t%s\t%s\t%d (%d%%)\n", info.Mapping.Resource, info.Name, b.Kind, b.Name, *b.Weight, *b.Weight*100/totalWeight) |
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274 |
+ } |
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275 |
+ } |
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276 |
+ return nil |
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277 |
+ }) |
|
278 |
+ if err != nil { |
|
279 |
+ fmt.Fprintf(w, "%s/%s\t%s\t%s\t%d\n", info.Mapping.Resource, info.Name, "", "<error>", 0) |
|
280 |
+ } |
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281 |
+ } |
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282 |
+ return nil |
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283 |
+} |
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284 |
+ |
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285 |
+// BackendTransform describes the desired transformation of backends. |
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+type BackendTransform struct { |
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287 |
+ // Adjust expects a single Input to transform, relative to other backends. |
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288 |
+ Adjust bool |
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289 |
+ // Zero sets all backend weights to zero. |
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290 |
+ Zero bool |
|
291 |
+ // Equal means backends will be set to equal weights. |
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292 |
+ Equal bool |
|
293 |
+ // Inputs is the desired backends. |
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294 |
+ Inputs []BackendInput |
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295 |
+} |
|
296 |
+ |
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297 |
+// Empty returns true if no transformations have been specified. |
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298 |
+func (t BackendTransform) Empty() bool { |
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299 |
+ return !(t.Zero || t.Equal || len(t.Inputs) > 0) |
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300 |
+} |
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301 |
+ |
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302 |
+// Validate returns an error if the transformations are not internally consistent. |
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303 |
+func (t BackendTransform) Validate() error { |
|
304 |
+ switch { |
|
305 |
+ case t.Adjust: |
|
306 |
+ if t.Zero { |
|
307 |
+ return fmt.Errorf("--adjust and --zero may not be specified together") |
|
308 |
+ } |
|
309 |
+ if t.Equal { |
|
310 |
+ return fmt.Errorf("--adjust and --equal may not be specified together") |
|
311 |
+ } |
|
312 |
+ if len(t.Inputs) != 1 { |
|
313 |
+ return fmt.Errorf("only one backend may be specified when adjusting") |
|
314 |
+ } |
|
315 |
+ |
|
316 |
+ case t.Zero, t.Equal: |
|
317 |
+ if t.Equal && t.Zero { |
|
318 |
+ return fmt.Errorf("--zero and --equal may not be specified together") |
|
319 |
+ } |
|
320 |
+ if len(t.Inputs) > 0 { |
|
321 |
+ return fmt.Errorf("arguments may not be provided when --zero or --equal is specified") |
|
322 |
+ } |
|
323 |
+ |
|
324 |
+ default: |
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325 |
+ percent := false |
|
326 |
+ names := sets.NewString() |
|
327 |
+ for i, input := range t.Inputs { |
|
328 |
+ if names.Has(input.Name) { |
|
329 |
+ return fmt.Errorf("backend name %q may only be specified once", input.Name) |
|
330 |
+ } |
|
331 |
+ names.Insert(input.Name) |
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332 |
+ if input.Percentage { |
|
333 |
+ if !percent && i != 0 { |
|
334 |
+ return fmt.Errorf("all backends must either be percentages or weights") |
|
335 |
+ } |
|
336 |
+ percent = true |
|
337 |
+ } |
|
338 |
+ if input.Value < 0 { |
|
339 |
+ return fmt.Errorf("negative percentages are not allowed") |
|
340 |
+ } |
|
341 |
+ } |
|
342 |
+ } |
|
343 |
+ return nil |
|
344 |
+} |
|
345 |
+ |
|
346 |
+// Apply transforms the provided backends or returns an error. |
|
347 |
+func (t BackendTransform) Apply(b *Backends) error { |
|
348 |
+ switch { |
|
349 |
+ case t.Zero: |
|
350 |
+ zero := int32(0) |
|
351 |
+ for i := range b.Backends { |
|
352 |
+ b.Backends[i].Weight = &zero |
|
353 |
+ } |
|
354 |
+ |
|
355 |
+ case t.Equal: |
|
356 |
+ equal := int32(100) |
|
357 |
+ for i := range b.Backends { |
|
358 |
+ b.Backends[i].Weight = &equal |
|
359 |
+ } |
|
360 |
+ |
|
361 |
+ case t.Adjust: |
|
362 |
+ input := t.Inputs[0] |
|
363 |
+ switch { |
|
364 |
+ case len(b.Backends) == 0: |
|
365 |
+ return fmt.Errorf("no backends can be adjusted") |
|
366 |
+ case len(b.Backends) == 1: |
|
367 |
+ // treat adjusting primary specially |
|
368 |
+ backend := &b.Backends[0] |
|
369 |
+ if backend.Name != input.Name { |
|
370 |
+ return fmt.Errorf("backend %q is not in the list of backends (%s)", input.Name, strings.Join(b.Names(), ", ")) |
|
371 |
+ } |
|
372 |
+ if input.Relative { |
|
373 |
+ return fmt.Errorf("cannot adjust a single backend by relative weight") |
|
374 |
+ } |
|
375 |
+ // ignore distinction between percentage and weight for single backend |
|
376 |
+ backend.Weight = &input.Value |
|
377 |
+ case b.Backends[0].Name == input.Name: |
|
378 |
+ // changing the primary backend, multiple available |
|
379 |
+ if len(b.Backends) == 1 { |
|
380 |
+ input.Apply(&b.Backends[0], nil, b.Backends) |
|
381 |
+ return nil |
|
382 |
+ } |
|
383 |
+ input.Apply(&b.Backends[0], &b.Backends[1], b.Backends) |
|
384 |
+ |
|
385 |
+ default: |
|
386 |
+ // changing an alternate backend, multiple available |
|
387 |
+ for i := range b.Backends { |
|
388 |
+ if b.Backends[i].Name != input.Name { |
|
389 |
+ continue |
|
390 |
+ } |
|
391 |
+ input.Apply(&b.Backends[i], &b.Backends[0], b.Backends) |
|
392 |
+ return nil |
|
393 |
+ } |
|
394 |
+ return fmt.Errorf("backend %q is not in the list of backends (%s)", input.Name, strings.Join(b.Names(), ", ")) |
|
395 |
+ } |
|
396 |
+ |
|
397 |
+ default: |
|
398 |
+ b.Backends = nil |
|
399 |
+ for _, input := range t.Inputs { |
|
400 |
+ weight := input.Value |
|
401 |
+ b.Backends = append(b.Backends, routeapi.RouteTargetReference{ |
|
402 |
+ Kind: "Service", |
|
403 |
+ Name: input.Name, |
|
404 |
+ Weight: &weight, |
|
405 |
+ }) |
|
406 |
+ } |
|
407 |
+ } |
|
408 |
+ return nil |
|
409 |
+} |
|
410 |
+ |
|
411 |
+// BackendInput describes a change to a named service. |
|
412 |
+type BackendInput struct { |
|
413 |
+ // Name is the name of a service. |
|
414 |
+ Name string |
|
415 |
+ // Value is the amount to change. |
|
416 |
+ Value int32 |
|
417 |
+ // Percentage means value should be interpreted as a percentage between -100 and 100, inclusive. |
|
418 |
+ Percentage bool |
|
419 |
+ // Relative means value is applied relative to the current values. |
|
420 |
+ Relative bool |
|
421 |
+} |
|
422 |
+ |
|
423 |
+// Apply alters the weights of two services. |
|
424 |
+func (input *BackendInput) Apply(ref, to *routeapi.RouteTargetReference, backends []routeapi.RouteTargetReference) { |
|
425 |
+ weight := int32(100) |
|
426 |
+ if ref.Weight != nil { |
|
427 |
+ weight = *ref.Weight |
|
428 |
+ } |
|
429 |
+ switch { |
|
430 |
+ case input.Percentage: |
|
431 |
+ if to == nil { |
|
432 |
+ weight += (weight * input.Value) / 100 |
|
433 |
+ ref.Weight = &weight |
|
434 |
+ return |
|
435 |
+ } |
|
436 |
+ |
|
437 |
+ otherWeight := int32(0) |
|
438 |
+ if to.Weight != nil { |
|
439 |
+ otherWeight = *to.Weight |
|
440 |
+ } |
|
441 |
+ previousWeight := weight + otherWeight |
|
442 |
+ |
|
443 |
+ // rebalance all other backends to be relative in weight to the current |
|
444 |
+ for i, other := range backends { |
|
445 |
+ if previousWeight == 0 || other.Weight == nil || other.Name == ref.Name || other.Name == to.Name { |
|
446 |
+ continue |
|
447 |
+ } |
|
448 |
+ adjusted := *other.Weight * 100 / previousWeight |
|
449 |
+ backends[i].Weight = &adjusted |
|
450 |
+ } |
|
451 |
+ |
|
452 |
+ // adjust the weight between ref and to |
|
453 |
+ target := float32(input.Value) / 100 |
|
454 |
+ if input.Relative { |
|
455 |
+ if previousWeight != 0 { |
|
456 |
+ percent := float32(weight) / float32(previousWeight) |
|
457 |
+ target = percent + target |
|
458 |
+ } |
|
459 |
+ } |
|
460 |
+ switch { |
|
461 |
+ case target < 0: |
|
462 |
+ target = 0 |
|
463 |
+ case target > 1: |
|
464 |
+ target = 1 |
|
465 |
+ } |
|
466 |
+ weight = int32(target * 100) |
|
467 |
+ otherWeight = int32((1 - target) * 100) |
|
468 |
+ ref.Weight = &weight |
|
469 |
+ to.Weight = &otherWeight |
|
470 |
+ |
|
471 |
+ // rescale the max to 200 in case we are dealing with very small percentages |
|
472 |
+ max := int32(0) |
|
473 |
+ for _, other := range backends { |
|
474 |
+ if other.Weight == nil { |
|
475 |
+ continue |
|
476 |
+ } |
|
477 |
+ if *other.Weight > max { |
|
478 |
+ max = *other.Weight |
|
479 |
+ } |
|
480 |
+ } |
|
481 |
+ if max > 256 { |
|
482 |
+ for i, other := range backends { |
|
483 |
+ if other.Weight == nil || *other.Weight == 0 { |
|
484 |
+ continue |
|
485 |
+ } |
|
486 |
+ adjusted := 200 * *other.Weight / max |
|
487 |
+ if adjusted < 1 { |
|
488 |
+ adjusted = 1 |
|
489 |
+ } |
|
490 |
+ backends[i].Weight = &adjusted |
|
491 |
+ } |
|
492 |
+ } |
|
493 |
+ |
|
494 |
+ case input.Relative: |
|
495 |
+ weight += input.Value |
|
496 |
+ if weight < 0 { |
|
497 |
+ weight = 0 |
|
498 |
+ } |
|
499 |
+ ref.Weight = &weight |
|
500 |
+ |
|
501 |
+ default: |
|
502 |
+ ref.Weight = &input.Value |
|
503 |
+ } |
|
504 |
+} |
|
505 |
+ |
|
506 |
+// ParseBackendInput turns the provided input into a BackendInput or returns an error. |
|
507 |
+func ParseBackendInput(s string) (*BackendInput, error) { |
|
508 |
+ parts := strings.SplitN(s, "=", 2) |
|
509 |
+ switch { |
|
510 |
+ case len(parts) != 2, len(parts[0]) == 0, len(parts[1]) == 0: |
|
511 |
+ return nil, fmt.Errorf("expected NAME=WEIGHT") |
|
512 |
+ } |
|
513 |
+ |
|
514 |
+ if strings.Contains(parts[0], "/") { |
|
515 |
+ return nil, fmt.Errorf("only NAME=WEIGHT may be specified") |
|
516 |
+ } |
|
517 |
+ |
|
518 |
+ input := &BackendInput{} |
|
519 |
+ input.Name = parts[0] |
|
520 |
+ |
|
521 |
+ if strings.HasSuffix(parts[1], "%") { |
|
522 |
+ input.Percentage = true |
|
523 |
+ parts[1] = strings.TrimSuffix(parts[1], "%") |
|
524 |
+ } |
|
525 |
+ if strings.HasPrefix(parts[1], "+") { |
|
526 |
+ input.Relative = true |
|
527 |
+ parts[1] = strings.TrimPrefix(parts[1], "+") |
|
528 |
+ } |
|
529 |
+ value, err := strconv.Atoi(parts[1]) |
|
530 |
+ if err != nil { |
|
531 |
+ return nil, fmt.Errorf("WEIGHT must be a number: %v", err) |
|
532 |
+ } |
|
533 |
+ input.Value = int32(value) |
|
534 |
+ if input.Value < 0 { |
|
535 |
+ input.Relative = true |
|
536 |
+ } |
|
537 |
+ return input, nil |
|
538 |
+} |
|
539 |
+ |
|
540 |
+// Backends is a struct that represents the backends to be transformed. |
|
541 |
+type Backends struct { |
|
542 |
+ Backends []routeapi.RouteTargetReference |
|
543 |
+} |
|
544 |
+ |
|
545 |
+// Names returns the referenced backend service names, in the order they appear. |
|
546 |
+func (b *Backends) Names() []string { |
|
547 |
+ var names []string |
|
548 |
+ for _, backend := range b.Backends { |
|
549 |
+ names = append(names, backend.Name) |
|
550 |
+ } |
|
551 |
+ return names |
|
552 |
+} |
|
553 |
+ |
|
554 |
+// UpdateBackendsForObject extracts a backend definition array from the provided object, passes it to fn, |
|
555 |
+// and then applies the backend on the object. It returns true if the object was mutated and an optional error |
|
556 |
+// if any part of the flow returns error. |
|
557 |
+func UpdateBackendsForObject(obj runtime.Object, fn func(*Backends) error) (bool, error) { |
|
558 |
+ // TODO: replace with a swagger schema based approach (identify pod template via schema introspection) |
|
559 |
+ switch t := obj.(type) { |
|
560 |
+ case *routeapi.Route: |
|
561 |
+ b := &Backends{ |
|
562 |
+ Backends: []routeapi.RouteTargetReference{t.Spec.To}, |
|
563 |
+ } |
|
564 |
+ for _, backend := range t.Spec.AlternateBackends { |
|
565 |
+ b.Backends = append(b.Backends, backend) |
|
566 |
+ } |
|
567 |
+ if err := fn(b); err != nil { |
|
568 |
+ return true, err |
|
569 |
+ } |
|
570 |
+ if len(b.Backends) == 0 { |
|
571 |
+ t.Spec.To = routeapi.RouteTargetReference{} |
|
572 |
+ } else { |
|
573 |
+ t.Spec.To = b.Backends[0] |
|
574 |
+ } |
|
575 |
+ if len(b.Backends) > 1 { |
|
576 |
+ t.Spec.AlternateBackends = b.Backends[1:] |
|
577 |
+ } else { |
|
578 |
+ t.Spec.AlternateBackends = nil |
|
579 |
+ } |
|
580 |
+ return true, nil |
|
581 |
+ default: |
|
582 |
+ return false, fmt.Errorf("the object is not a route") |
|
583 |
+ } |
|
584 |
+} |
... | ... |
@@ -46,6 +46,12 @@ func NewCmdSet(fullName string, f *clientcmd.Factory, in io.Reader, out, errout |
46 | 46 |
NewCmdBuildHook(name, f, out, errout), |
47 | 47 |
}, |
48 | 48 |
}, |
49 |
+ { |
|
50 |
+ Message: "Control load balancing:", |
|
51 |
+ Commands: []*cobra.Command{ |
|
52 |
+ NewCmdRouteBackends(name, f, out, errout), |
|
53 |
+ }, |
|
54 |
+ }, |
|
49 | 55 |
} |
50 | 56 |
groups.Add(set) |
51 | 57 |
templates.ActsAsRootCommand(set, []string{"options"}, groups...) |
... | ... |
@@ -652,6 +652,11 @@ type RouteDescriber struct { |
652 | 652 |
kubeClient kclient.Interface |
653 | 653 |
} |
654 | 654 |
|
655 |
+type routeEndpointInfo struct { |
|
656 |
+ *kapi.Endpoints |
|
657 |
+ Err error |
|
658 |
+} |
|
659 |
+ |
|
655 | 660 |
// Describe returns the description of a route |
656 | 661 |
func (d *RouteDescriber) Describe(namespace, name string, settings kctl.DescriberSettings) (string, error) { |
657 | 662 |
c := d.Routes(namespace) |
... | ... |
@@ -660,7 +665,16 @@ func (d *RouteDescriber) Describe(namespace, name string, settings kctl.Describe |
660 | 660 |
return "", err |
661 | 661 |
} |
662 | 662 |
|
663 |
- endpoints, endsErr := d.kubeClient.Endpoints(namespace).Get(route.Spec.To.Name) |
|
663 |
+ backends := append([]routeapi.RouteTargetReference{route.Spec.To}, route.Spec.AlternateBackends...) |
|
664 |
+ totalWeight := int32(0) |
|
665 |
+ endpoints := make(map[string]routeEndpointInfo) |
|
666 |
+ for _, backend := range backends { |
|
667 |
+ if backend.Weight != nil { |
|
668 |
+ totalWeight += *backend.Weight |
|
669 |
+ } |
|
670 |
+ ep, endpointsErr := d.kubeClient.Endpoints(namespace).Get(backend.Name) |
|
671 |
+ endpoints[backend.Name] = routeEndpointInfo{ep, endpointsErr} |
|
672 |
+ } |
|
664 | 673 |
|
665 | 674 |
return tabbedString(func(out *tabwriter.Writer) error { |
666 | 675 |
formatMeta(out, route.ObjectMeta) |
... | ... |
@@ -683,6 +697,7 @@ func (d *RouteDescriber) Describe(namespace, name string, settings kctl.Describe |
683 | 683 |
} else { |
684 | 684 |
formatString(out, "Requested Host", "<auto>") |
685 | 685 |
} |
686 |
+ |
|
686 | 687 |
for _, ingress := range route.Status.Ingress { |
687 | 688 |
if route.Spec.Host == ingress.Host { |
688 | 689 |
continue |
... | ... |
@@ -707,23 +722,39 @@ func (d *RouteDescriber) Describe(namespace, name string, settings kctl.Describe |
707 | 707 |
} |
708 | 708 |
formatString(out, "TLS Termination", tlsTerm) |
709 | 709 |
formatString(out, "Insecure Policy", insecurePolicy) |
710 |
- |
|
711 |
- formatString(out, "Service", route.Spec.To.Name) |
|
712 | 710 |
if route.Spec.Port != nil { |
713 | 711 |
formatString(out, "Endpoint Port", route.Spec.Port.TargetPort.String()) |
714 | 712 |
} else { |
715 | 713 |
formatString(out, "Endpoint Port", "<all endpoint ports>") |
716 | 714 |
} |
717 | 715 |
|
718 |
- ends := "<none>" |
|
719 |
- if endsErr != nil { |
|
720 |
- ends = fmt.Sprintf("Unable to get endpoints: %v", endsErr) |
|
721 |
- } else if len(endpoints.Subsets) > 0 { |
|
722 |
- list := []string{} |
|
716 |
+ for _, backend := range backends { |
|
717 |
+ fmt.Fprintln(out) |
|
718 |
+ formatString(out, "Service", backend.Name) |
|
719 |
+ weight := int32(0) |
|
720 |
+ if backend.Weight != nil { |
|
721 |
+ weight = *backend.Weight |
|
722 |
+ } |
|
723 |
+ if weight > 0 { |
|
724 |
+ fmt.Fprintf(out, "Weight:\t%d (%d%%)\n", weight, weight*100/totalWeight) |
|
725 |
+ } else { |
|
726 |
+ formatString(out, "Weight", "0") |
|
727 |
+ } |
|
728 |
+ |
|
729 |
+ info := endpoints[backend.Name] |
|
730 |
+ if info.Err != nil { |
|
731 |
+ formatString(out, "Endpoints", fmt.Sprintf("<error: %v>", info.Err)) |
|
732 |
+ continue |
|
733 |
+ } |
|
734 |
+ endpoints := info.Endpoints |
|
735 |
+ if len(endpoints.Subsets) == 0 { |
|
736 |
+ formatString(out, "Endpoints", "<none>") |
|
737 |
+ continue |
|
738 |
+ } |
|
723 | 739 |
|
740 |
+ list := []string{} |
|
724 | 741 |
max := 3 |
725 | 742 |
count := 0 |
726 |
- |
|
727 | 743 |
for i := range endpoints.Subsets { |
728 | 744 |
ss := &endpoints.Subsets[i] |
729 | 745 |
for p := range ss.Ports { |
... | ... |
@@ -735,12 +766,12 @@ func (d *RouteDescriber) Describe(namespace, name string, settings kctl.Describe |
735 | 735 |
} |
736 | 736 |
} |
737 | 737 |
} |
738 |
- ends = strings.Join(list, ", ") |
|
738 |
+ ends := strings.Join(list, ", ") |
|
739 | 739 |
if count > max { |
740 | 740 |
ends += fmt.Sprintf(" + %d more...", count-max) |
741 | 741 |
} |
742 |
+ formatString(out, "Endpoints", ends) |
|
742 | 743 |
} |
743 |
- formatString(out, "Endpoints", ends) |
|
744 | 744 |
return nil |
745 | 745 |
}) |
746 | 746 |
} |
... | ... |
@@ -12,7 +12,6 @@ import ( |
12 | 12 |
kapi "k8s.io/kubernetes/pkg/api" |
13 | 13 |
"k8s.io/kubernetes/pkg/api/unversioned" |
14 | 14 |
kctl "k8s.io/kubernetes/pkg/kubectl" |
15 |
- "k8s.io/kubernetes/pkg/labels" |
|
16 | 15 |
"k8s.io/kubernetes/pkg/util/sets" |
17 | 16 |
|
18 | 17 |
authorizationapi "github.com/openshift/origin/pkg/authorization/api" |
... | ... |
@@ -36,7 +35,7 @@ var ( |
36 | 36 |
imageStreamImageColumns = []string{"NAME", "DOCKER REF", "UPDATED", "IMAGENAME"} |
37 | 37 |
imageStreamColumns = []string{"NAME", "DOCKER REPO", "TAGS", "UPDATED"} |
38 | 38 |
projectColumns = []string{"NAME", "DISPLAY NAME", "STATUS"} |
39 |
- routeColumns = []string{"NAME", "HOST/PORT", "PATH", "SERVICE", "TERMINATION", "LABELS"} |
|
39 |
+ routeColumns = []string{"NAME", "HOST/PORT", "PATH", "SERVICES", "PORT", "TERMINATION"} |
|
40 | 40 |
deploymentConfigColumns = []string{"NAME", "REVISION", "DESIRED", "CURRENT", "TRIGGERED BY"} |
41 | 41 |
templateColumns = []string{"NAME", "DESCRIPTION", "PARAMETERS", "OBJECTS"} |
42 | 42 |
policyColumns = []string{"NAME", "ROLES", "LAST MODIFIED"} |
... | ... |
@@ -555,14 +554,35 @@ func printRoute(route *routeapi.Route, w io.Writer, opts kctl.PrintOptions) erro |
555 | 555 |
default: |
556 | 556 |
policy = "" |
557 | 557 |
} |
558 |
- svc := route.Spec.To.Name |
|
559 |
- if route.Spec.Port != nil { |
|
560 |
- svc = fmt.Sprintf("%s:%s", svc, route.Spec.Port.TargetPort.String()) |
|
558 |
+ |
|
559 |
+ backends := append([]routeapi.RouteTargetReference{route.Spec.To}, route.Spec.AlternateBackends...) |
|
560 |
+ totalWeight := int32(0) |
|
561 |
+ for _, backend := range backends { |
|
562 |
+ if backend.Weight != nil { |
|
563 |
+ totalWeight += *backend.Weight |
|
564 |
+ } |
|
561 | 565 |
} |
562 |
- if _, err := fmt.Fprintf(w, "%s\t%s\t%s\t%s\t%s\t%s\n", name, host, route.Spec.Path, svc, policy, labels.Set(route.Labels)); err != nil { |
|
563 |
- return err |
|
566 |
+ var backendInfo []string |
|
567 |
+ for _, backend := range backends { |
|
568 |
+ switch { |
|
569 |
+ case backend.Weight == nil, len(backends) == 1 && totalWeight != 0: |
|
570 |
+ backendInfo = append(backendInfo, backend.Name) |
|
571 |
+ case totalWeight == 0: |
|
572 |
+ backendInfo = append(backendInfo, fmt.Sprintf("%s(0%%)", backend.Name)) |
|
573 |
+ default: |
|
574 |
+ backendInfo = append(backendInfo, fmt.Sprintf("%s(%d%%)", backend.Name, *backend.Weight*100/totalWeight)) |
|
575 |
+ } |
|
564 | 576 |
} |
565 |
- return nil |
|
577 |
+ |
|
578 |
+ var port string |
|
579 |
+ if route.Spec.Port != nil { |
|
580 |
+ port = route.Spec.Port.TargetPort.String() |
|
581 |
+ } else { |
|
582 |
+ port = "<all>" |
|
583 |
+ } |
|
584 |
+ |
|
585 |
+ _, err := fmt.Fprintf(w, "%s\t%s\t%s\t%s\t%s\t%s\n", name, host, route.Spec.Path, strings.Join(backendInfo, ","), port, policy) |
|
586 |
+ return err |
|
566 | 587 |
} |
567 | 588 |
|
568 | 589 |
func printRouteList(routeList *routeapi.RouteList, w io.Writer, opts kctl.PrintOptions) error { |
... | ... |
@@ -50,18 +50,19 @@ func ValidateRoute(route *routeapi.Route) field.ErrorList { |
50 | 50 |
result = append(result, field.Invalid(specPath.Child("to", "weight"), route.Spec.To.Weight, "weight must be an integer between 0 and 256")) |
51 | 51 |
} |
52 | 52 |
|
53 |
+ backendPath := specPath.Child("alternateBackends") |
|
53 | 54 |
if len(route.Spec.AlternateBackends) > 3 { |
54 |
- result = append(result, field.Required(specPath.Child("alternateBackends"), "cannot specify more than 3 additional backends")) |
|
55 |
+ result = append(result, field.Required(backendPath, "cannot specify more than 3 additional backends")) |
|
55 | 56 |
} |
56 |
- for _, svc := range route.Spec.AlternateBackends { |
|
57 |
+ for i, svc := range route.Spec.AlternateBackends { |
|
57 | 58 |
if len(svc.Name) == 0 { |
58 |
- result = append(result, field.Required(specPath.Child("alternateBackends", "name"), "")) |
|
59 |
+ result = append(result, field.Required(backendPath.Index(i).Child("name"), "")) |
|
59 | 60 |
} |
60 | 61 |
if svc.Kind != "Service" { |
61 |
- result = append(result, field.Invalid(specPath.Child("alternateBackends", "kind"), svc.Kind, "must reference a Service")) |
|
62 |
+ result = append(result, field.Invalid(backendPath.Index(i).Child("kind"), svc.Kind, "must reference a Service")) |
|
62 | 63 |
} |
63 | 64 |
if svc.Weight != nil && (*svc.Weight < 0 || *svc.Weight > 256) { |
64 |
- result = append(result, field.Invalid(specPath.Child("alternateBackends", "weight"), svc.Weight, "weight must be an integer between 0 and 256")) |
|
65 |
+ result = append(result, field.Invalid(backendPath.Index(i).Child("weight"), svc.Weight, "weight must be an integer between 0 and 256")) |
|
65 | 66 |
} |
66 | 67 |
} |
67 | 68 |
|
... | ... |
@@ -174,24 +174,6 @@ os::cmd::expect_success 'oc delete -f examples/pets/zookeeper/zookeeper.yaml' |
174 | 174 |
echo "petsets: ok" |
175 | 175 |
os::test::junit::declare_suite_end |
176 | 176 |
|
177 |
-os::test::junit::declare_suite_start "cmd/basicresources/routes" |
|
178 |
-os::cmd::expect_success 'oc get routes' |
|
179 |
-os::cmd::expect_success 'oc create -f test/integration/testdata/test-route.json' |
|
180 |
-os::cmd::expect_success 'oc delete routes testroute' |
|
181 |
-os::cmd::expect_success 'oc create -f test/integration/testdata/test-service.json' |
|
182 |
-os::cmd::expect_success 'oc create route passthrough --service=svc/frontend' |
|
183 |
-os::cmd::expect_success 'oc delete routes frontend' |
|
184 |
-os::cmd::expect_success 'oc create route edge --path /test --service=services/non-existent --port=80' |
|
185 |
-os::cmd::expect_success 'oc delete routes non-existent' |
|
186 |
-os::cmd::expect_success 'oc create route edge test-route --service=frontend' |
|
187 |
-os::cmd::expect_success 'oc delete routes test-route' |
|
188 |
-os::cmd::expect_failure 'oc create route edge new-route' |
|
189 |
-os::cmd::expect_success 'oc delete services frontend' |
|
190 |
-os::cmd::expect_success 'oc create route edge --insecure-policy=Allow --service=foo --port=80' |
|
191 |
-os::cmd::expect_success_and_text 'oc get route foo -o jsonpath="{.spec.tls.insecureEdgeTerminationPolicy}"' 'Allow' |
|
192 |
-os::cmd::expect_success 'oc delete routes foo' |
|
193 |
-echo "routes: ok" |
|
194 |
-os::test::junit::declare_suite_end |
|
195 | 177 |
|
196 | 178 |
os::test::junit::declare_suite_start "cmd/basicresources/setprobe" |
197 | 179 |
# Validate the probe command |
... | ... |
@@ -291,7 +273,7 @@ os::cmd::expect_success 'oc delete svc,route -l name=frontend' |
291 | 291 |
# Test that external services are exposable |
292 | 292 |
os::cmd::expect_success 'oc create -f test/testdata/external-service.yaml' |
293 | 293 |
os::cmd::expect_success 'oc expose svc/external' |
294 |
-os::cmd::expect_success_and_text 'oc get route external' 'external=service' |
|
294 |
+os::cmd::expect_success_and_text 'oc get route external' 'external' |
|
295 | 295 |
os::cmd::expect_success 'oc delete route external' |
296 | 296 |
os::cmd::expect_success 'oc delete svc external' |
297 | 297 |
# Expose multiport service and verify we set a port in the route |
298 | 298 |
new file mode 100755 |
... | ... |
@@ -0,0 +1,78 @@ |
0 |
+#!/bin/bash |
|
1 |
+source "$(dirname "${BASH_SOURCE}")/../../hack/lib/init.sh" |
|
2 |
+trap os::test::junit::reconcile_output EXIT |
|
3 |
+ |
|
4 |
+# Cleanup cluster resources created by this test |
|
5 |
+( |
|
6 |
+ set +e |
|
7 |
+ oc delete route foo bar testroute test-route new-route |
|
8 |
+ exit 0 |
|
9 |
+) &>/dev/null |
|
10 |
+ |
|
11 |
+ |
|
12 |
+os::test::junit::declare_suite_start "cmd/routes" |
|
13 |
+ |
|
14 |
+os::cmd::expect_success 'oc get routes' |
|
15 |
+os::cmd::expect_success 'oc create -f test/integration/testdata/test-route.json' |
|
16 |
+os::cmd::expect_success 'oc delete routes testroute' |
|
17 |
+os::cmd::expect_success 'oc create -f test/integration/testdata/test-service.json' |
|
18 |
+os::cmd::expect_success 'oc create route passthrough --service=svc/frontend' |
|
19 |
+os::cmd::expect_success 'oc delete routes frontend' |
|
20 |
+os::cmd::expect_success 'oc create route edge --path /test --service=services/non-existent --port=80' |
|
21 |
+os::cmd::expect_success 'oc delete routes non-existent' |
|
22 |
+os::cmd::expect_success 'oc create route edge test-route --service=frontend' |
|
23 |
+os::cmd::expect_success 'oc delete routes test-route' |
|
24 |
+os::cmd::expect_failure 'oc create route edge new-route' |
|
25 |
+os::cmd::expect_success 'oc delete services frontend' |
|
26 |
+os::cmd::expect_success 'oc create route edge --insecure-policy=Allow --service=foo --port=80' |
|
27 |
+os::cmd::expect_success_and_text 'oc get route foo -o jsonpath="{.spec.tls.insecureEdgeTerminationPolicy}"' 'Allow' |
|
28 |
+os::cmd::expect_success 'oc delete routes foo' |
|
29 |
+ |
|
30 |
+os::cmd::expect_success_and_text 'oc create route edge --service foo --port=8080' 'created' |
|
31 |
+os::cmd::expect_success_and_text 'oc create route edge --service bar --port=9090' 'created' |
|
32 |
+ |
|
33 |
+os::cmd::expect_success_and_text 'oc set route-backends foo' 'routes/foo' |
|
34 |
+os::cmd::expect_success_and_text 'oc set route-backends foo' 'Service' |
|
35 |
+os::cmd::expect_success_and_text 'oc set route-backends foo' '100' |
|
36 |
+os::cmd::expect_failure_and_text 'oc set route-backends foo --zero --equal' 'error: --zero and --equal may not be specified together' |
|
37 |
+os::cmd::expect_failure_and_text 'oc set route-backends foo --zero --adjust' 'error: --adjust and --zero may not be specified together' |
|
38 |
+os::cmd::expect_failure_and_text 'oc set route-backends foo a=' 'expected NAME=WEIGHT' |
|
39 |
+os::cmd::expect_failure_and_text 'oc set route-backends foo =10' 'expected NAME=WEIGHT' |
|
40 |
+os::cmd::expect_failure_and_text 'oc set route-backends foo a=a' 'WEIGHT must be a number' |
|
41 |
+os::cmd::expect_success_and_text 'oc set route-backends foo a=10' 'updated' |
|
42 |
+os::cmd::expect_success_and_text 'oc set route-backends foo a=100' 'updated' |
|
43 |
+os::cmd::expect_success_and_text 'oc set route-backends foo a=0' 'updated' |
|
44 |
+os::cmd::expect_success_and_text 'oc set route-backends foo' '0' |
|
45 |
+os::cmd::expect_success_and_text 'oc get routes foo' 'a' |
|
46 |
+os::cmd::expect_success_and_text 'oc set route-backends foo a1=0 b2=0' 'updated' |
|
47 |
+os::cmd::expect_success_and_text 'oc set route-backends foo' 'a1' |
|
48 |
+os::cmd::expect_success_and_text 'oc set route-backends foo' 'b2' |
|
49 |
+os::cmd::expect_success_and_text 'oc set route-backends foo a1=100 b2=50 c3=0' 'updated' |
|
50 |
+os::cmd::expect_success_and_text 'oc get routes foo' 'a1\(66%\),b2\(33%\),c3\(0%\)' |
|
51 |
+os::cmd::expect_success_and_text 'oc set route-backends foo a1=100 b2=0 c3=0' 'updated' |
|
52 |
+os::cmd::expect_success_and_text 'oc set route-backends foo --adjust b2=+10%' 'updated' |
|
53 |
+os::cmd::expect_success_and_text 'oc get routes foo' 'a1\(90%\),b2\(10%\),c3\(0%\)' |
|
54 |
+os::cmd::expect_success_and_text 'oc set route-backends foo --adjust b2=+25%' 'updated' |
|
55 |
+os::cmd::expect_success_and_text 'oc get routes foo' 'a1\(65%\),b2\(35%\),c3\(0%\)' |
|
56 |
+os::cmd::expect_success_and_text 'oc set route-backends foo --adjust b2=+99%' 'updated' |
|
57 |
+os::cmd::expect_success_and_text 'oc get routes foo' 'a1\(0%\),b2\(100%\),c3\(0%\)' |
|
58 |
+os::cmd::expect_success_and_text 'oc set route-backends foo --adjust b2=-51%' 'updated' |
|
59 |
+os::cmd::expect_success_and_text 'oc get routes foo' 'a1\(51%\),b2\(49%\),c3\(0%\)' |
|
60 |
+os::cmd::expect_success_and_text 'oc set route-backends foo --adjust a1=20%' 'updated' |
|
61 |
+os::cmd::expect_success_and_text 'oc get routes foo' 'a1\(20%\),b2\(80%\),c3\(0%\)' |
|
62 |
+os::cmd::expect_success_and_text 'oc set route-backends foo --adjust c3=50%' 'updated' |
|
63 |
+os::cmd::expect_success_and_text 'oc get routes foo' 'a1\(10%\),b2\(80%\),c3\(10%\)' |
|
64 |
+os::cmd::expect_success_and_text 'oc describe routes foo' '25 \(10%\)' |
|
65 |
+os::cmd::expect_success_and_text 'oc describe routes foo' '200 \(80%\)' |
|
66 |
+os::cmd::expect_success_and_text 'oc describe routes foo' '25 \(10%\)' |
|
67 |
+os::cmd::expect_success_and_text 'oc describe routes foo' '<error: endpoints "c3" not found>' |
|
68 |
+os::cmd::expect_success_and_text 'oc set route-backends foo --adjust c3=1' 'updated' |
|
69 |
+os::cmd::expect_success_and_text 'oc describe routes foo' '1 \(0%\)' |
|
70 |
+os::cmd::expect_success_and_text 'oc set route-backends foo --equal' 'updated' |
|
71 |
+os::cmd::expect_success_and_text 'oc get routes foo' 'a1\(33%\),b2\(33%\),c3\(33%\)' |
|
72 |
+os::cmd::expect_success_and_text 'oc describe routes foo' '100 \(33%\)' |
|
73 |
+os::cmd::expect_success_and_text 'oc set route-backends foo --zero' 'updated' |
|
74 |
+os::cmd::expect_success_and_text 'oc get routes foo' 'a1\(0%\),b2\(0%\),c3\(0%\)' |
|
75 |
+os::cmd::expect_success_and_text 'oc describe routes foo' '0' |
|
76 |
+ |
|
77 |
+os::test::junit::declare_suite_end |