cmd/pinniped/cmd: add get-kubeconfig cli tests
Signed-off-by: Andrew Keesler <akeesler@vmware.com>
This commit is contained in:
Andrew Keesler
parent
4379d2772c
commit
879d847ffb
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@ -26,6 +26,7 @@ import (
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"github.com/suzerain-io/pinniped/generated/1.19/apis/crdpinniped/v1alpha1"
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pinnipedclientset "github.com/suzerain-io/pinniped/generated/1.19/client/clientset/versioned"
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"github.com/suzerain-io/pinniped/internal/constable"
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"github.com/suzerain-io/pinniped/internal/controller/issuerconfig"
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"github.com/suzerain-io/pinniped/internal/here"
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)
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@ -39,8 +40,42 @@ const (
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//nolint: gochecknoinits
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func init() {
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getKubeConfigCmd := &cobra.Command{
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Run: runGetKubeConfig,
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rootCmd.AddCommand(newGetKubeConfigCmd(os.Args, os.Stdout, os.Stderr).cmd)
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}
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type getKubeConfigCommand struct {
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// runFunc is called by the cobra.Command.Run hook. It is included here for
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// testability.
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runFunc func(
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stdout, stderr io.Writer,
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token, kubeconfigPathOverride, currentContextOverride, pinnipedInstallationNamespace string,
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)
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// cmd is the cobra.Command for this CLI command. It is included here for
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// testability.
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cmd *cobra.Command
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}
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func newGetKubeConfigCmd(args []string, stdout, stderr io.Writer) *getKubeConfigCommand {
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c := &getKubeConfigCommand{
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runFunc: runGetKubeConfig,
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}
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c.cmd = &cobra.Command{
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Run: func(cmd *cobra.Command, _ []string) {
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token := cmd.Flag(getKubeConfigCmdTokenFlagName).Value.String()
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kubeconfigPathOverride := cmd.Flag(getKubeConfigCmdKubeconfigFlagName).Value.String()
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currentContextOverride := cmd.Flag(getKubeConfigCmdKubeconfigContextFlagName).Value.String()
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pinnipedInstallationNamespace := cmd.Flag(getKubeConfigCmdPinnipedNamespaceFlagName).Value.String()
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c.runFunc(
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stdout,
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stderr,
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token,
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kubeconfigPathOverride,
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currentContextOverride,
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pinnipedInstallationNamespace,
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)
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},
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Args: cobra.NoArgs, // do not accept positional arguments for this command
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Use: "get-kubeconfig",
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Short: "Print a kubeconfig for authenticating into a cluster via Pinniped",
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@ -63,50 +98,52 @@ func init() {
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`),
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}
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rootCmd.AddCommand(getKubeConfigCmd)
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c.cmd.SetArgs(args)
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c.cmd.SetOut(stdout)
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c.cmd.SetErr(stderr)
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getKubeConfigCmd.Flags().StringP(
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c.cmd.Flags().StringP(
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getKubeConfigCmdTokenFlagName,
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"",
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"",
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"Credential to include in the resulting kubeconfig output (Required)",
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)
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err := getKubeConfigCmd.MarkFlagRequired(getKubeConfigCmdTokenFlagName)
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err := c.cmd.MarkFlagRequired(getKubeConfigCmdTokenFlagName)
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if err != nil {
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panic(err)
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}
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getKubeConfigCmd.Flags().StringP(
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c.cmd.Flags().StringP(
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getKubeConfigCmdKubeconfigFlagName,
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"",
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"",
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"Path to the kubeconfig file",
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)
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getKubeConfigCmd.Flags().StringP(
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c.cmd.Flags().StringP(
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getKubeConfigCmdKubeconfigContextFlagName,
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"",
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"",
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"Kubeconfig context override",
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)
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getKubeConfigCmd.Flags().StringP(
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c.cmd.Flags().StringP(
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getKubeConfigCmdPinnipedNamespaceFlagName,
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"",
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"pinniped",
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"Namespace in which Pinniped was installed",
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)
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return c
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}
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func runGetKubeConfig(cmd *cobra.Command, _ []string) {
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token := cmd.Flag(getKubeConfigCmdTokenFlagName).Value.String()
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kubeconfigPathOverride := cmd.Flag(getKubeConfigCmdKubeconfigFlagName).Value.String()
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currentContextOverride := cmd.Flag(getKubeConfigCmdKubeconfigContextFlagName).Value.String()
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pinnipedInstallationNamespace := cmd.Flag(getKubeConfigCmdPinnipedNamespaceFlagName).Value.String()
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func runGetKubeConfig(
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stdout, stderr io.Writer,
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token, kubeconfigPathOverride, currentContextOverride, pinnipedInstallationNamespace string,
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) {
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err := getKubeConfig(
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os.Stdout,
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os.Stderr,
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stdout,
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stderr,
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token,
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kubeconfigPathOverride,
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currentContextOverride,
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@ -152,13 +189,15 @@ func getKubeConfig(
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return err
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}
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if credentialIssuerConfig.Status.KubeConfigInfo == nil {
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return constable.Error(`CredentialIssuerConfig "pinniped-config" was missing KubeConfigInfo`)
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}
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v1Cluster, err := copyCurrentClusterFromExistingKubeConfig(err, currentKubeConfig, currentContextNameOverride)
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if err != nil {
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return err
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}
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// TODO handle when credentialIssuerConfig has no Status or no KubeConfigInfo
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err = issueWarningForNonMatchingServerOrCA(v1Cluster, credentialIssuerConfig, warningsWriter)
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if err != nil {
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return err
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@ -9,6 +9,7 @@ import (
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"bytes"
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"encoding/base64"
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"fmt"
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"io"
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"os"
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"testing"
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@ -25,7 +26,180 @@ import (
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"github.com/suzerain-io/pinniped/internal/here"
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)
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// TODO write a test for the help message and command line flags similar to server_test.go
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const (
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knownGoodUsage = `
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Usage:
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get-kubeconfig [flags]
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Flags:
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-h, --help help for get-kubeconfig
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--kubeconfig string Path to the kubeconfig file
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--kubeconfig-context string Kubeconfig context override
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--pinniped-namespace string Namespace in which Pinniped was installed (default "pinniped")
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--token string Credential to include in the resulting kubeconfig output (Required)
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`
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knownGoodHelp = `Print a kubeconfig for authenticating into a cluster via Pinniped.
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Requires admin-like access to the cluster using the current
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kubeconfig context in order to access Pinniped's metadata.
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The current kubeconfig is found similar to how kubectl finds it:
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using the value of the --kubeconfig option, or if that is not
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specified then from the value of the KUBECONFIG environment
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variable, or if that is not specified then it defaults to
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.kube/config in your home directory.
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Prints a kubeconfig which is suitable to access the cluster using
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Pinniped as the authentication mechanism. This kubeconfig output
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can be saved to a file and used with future kubectl commands, e.g.:
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pinniped get-kubeconfig --token $MY_TOKEN > $HOME/mycluster-kubeconfig
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kubectl --kubeconfig $HOME/mycluster-kubeconfig get pods
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Usage:
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get-kubeconfig [flags]
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Flags:
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-h, --help help for get-kubeconfig
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--kubeconfig string Path to the kubeconfig file
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--kubeconfig-context string Kubeconfig context override
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--pinniped-namespace string Namespace in which Pinniped was installed (default "pinniped")
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--token string Credential to include in the resulting kubeconfig output (Required)
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`
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)
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func TestNewGetKubeConfigCmd(t *testing.T) {
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spec.Run(t, "newGetKubeConfigCmd", func(t *testing.T, when spec.G, it spec.S) {
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var r *require.Assertions
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var stdout, stderr *bytes.Buffer
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it.Before(func() {
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r = require.New(t)
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stdout, stderr = bytes.NewBuffer([]byte{}), bytes.NewBuffer([]byte{})
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})
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it("passes all flags to runFunc", func() {
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args := []string{
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"--token", "some-token",
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"--kubeconfig", "some-kubeconfig",
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"--kubeconfig-context", "some-kubeconfig-context",
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"--pinniped-namespace", "some-pinniped-namespace",
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}
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c := newGetKubeConfigCmd(args, stdout, stderr)
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runFuncCalled := false
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c.runFunc = func(
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out, err io.Writer,
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token, kubeconfigPathOverride, currentContextOverride, pinnipedInstallationNamespace string,
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) {
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runFuncCalled = true
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r.Equal("some-token", token)
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r.Equal("some-kubeconfig", kubeconfigPathOverride)
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r.Equal("some-kubeconfig-context", currentContextOverride)
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r.Equal("some-pinniped-namespace", pinnipedInstallationNamespace)
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}
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r.NoError(c.cmd.Execute())
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r.True(runFuncCalled)
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r.Empty(stdout.String())
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r.Empty(stderr.String())
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})
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it("requires the 'token' flag", func() {
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args := []string{
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"--kubeconfig", "some-kubeconfig",
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"--kubeconfig-context", "some-kubeconfig-context",
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"--pinniped-namespace", "some-pinniped-namespace",
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}
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c := newGetKubeConfigCmd(args, stdout, stderr)
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runFuncCalled := false
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c.runFunc = func(
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out, err io.Writer,
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token, kubeconfigPathOverride, currentContextOverride, pinnipedInstallationNamespace string,
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) {
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runFuncCalled = true
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}
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errorMessage := `required flag(s) "token" not set`
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r.EqualError(c.cmd.Execute(), errorMessage)
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r.False(runFuncCalled)
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output := "Error: " + errorMessage + knownGoodUsage
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r.Equal(output, stdout.String())
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r.Empty(stderr.String())
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})
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it("defaults the flags correctly", func() {
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args := []string{
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"--token", "some-token",
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}
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c := newGetKubeConfigCmd(args, stdout, stderr)
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runFuncCalled := false
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c.runFunc = func(
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out, err io.Writer,
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token, kubeconfigPathOverride, currentContextOverride, pinnipedInstallationNamespace string,
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) {
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runFuncCalled = true
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r.Equal("some-token", token)
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r.Equal("", kubeconfigPathOverride)
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r.Equal("", currentContextOverride)
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r.Equal("pinniped", pinnipedInstallationNamespace)
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}
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r.NoError(c.cmd.Execute())
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r.True(runFuncCalled)
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r.Empty(stdout.String())
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r.Empty(stderr.String())
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})
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it("fails when args are passed", func() {
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args := []string{
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"--token", "some-token",
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"some-arg",
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}
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c := newGetKubeConfigCmd(args, stdout, stderr)
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runFuncCalled := false
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c.runFunc = func(
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out, err io.Writer,
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token, kubeconfigPathOverride, currentContextOverride, pinnipedInstallationNamespace string,
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) {
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runFuncCalled = true
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}
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errorMessage := `unknown command "some-arg" for "get-kubeconfig"`
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r.EqualError(c.cmd.Execute(), errorMessage)
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r.False(runFuncCalled)
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output := "Error: " + errorMessage + knownGoodUsage
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r.Equal(output, stdout.String())
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r.Empty(stderr.String())
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})
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it("prints a nice help message", func() {
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args := []string{
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"--help",
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}
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c := newGetKubeConfigCmd(args, stdout, stderr)
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runFuncCalled := false
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c.runFunc = func(
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out, err io.Writer,
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token, kubeconfigPathOverride, currentContextOverride, pinnipedInstallationNamespace string,
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) {
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runFuncCalled = true
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}
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r.NoError(c.cmd.Execute())
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r.False(runFuncCalled)
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r.Equal(knownGoodHelp, stdout.String())
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r.Empty(stderr.String())
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})
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}, spec.Parallel(), spec.Report(report.Terminal{}))
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}
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func expectedKubeconfigYAML(clusterCAData, clusterServer, command, token, pinnipedEndpoint, pinnipedCABundle string) string {
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return here.Docf(`
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@ -383,6 +557,45 @@ func TestGetKubeConfig(t *testing.T) {
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})
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})
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when("the CredentialIssuerConfig is found on the cluster with an empty KubeConfigInfo", func() {
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it.Before(func() {
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r.NoError(pinnipedClient.Tracker().Add(
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&crdpinnipedv1alpha1.CredentialIssuerConfig{
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TypeMeta: metav1.TypeMeta{
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Kind: "CredentialIssuerConfig",
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APIVersion: crdpinnipedv1alpha1.SchemeGroupVersion.String(),
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},
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ObjectMeta: metav1.ObjectMeta{
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Name: "pinniped-config",
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Namespace: "some-namespace",
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},
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Status: crdpinnipedv1alpha1.CredentialIssuerConfigStatus{},
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},
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))
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})
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it("returns an error", func() {
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kubeClientCreatorFuncWasCalled := false
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err := getKubeConfig(outputBuffer,
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warningsBuffer,
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"some-token",
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"./testdata/kubeconfig.yaml",
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"",
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"some-namespace",
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func(restConfig *rest.Config) (pinnipedclientset.Interface, error) {
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kubeClientCreatorFuncWasCalled = true
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r.Equal("https://fake-server-url-value", restConfig.Host)
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r.Equal("fake-certificate-authority-data-value", string(restConfig.CAData))
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return pinnipedClient, nil
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},
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)
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r.True(kubeClientCreatorFuncWasCalled)
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r.EqualError(err, `CredentialIssuerConfig "pinniped-config" was missing KubeConfigInfo`)
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r.Empty(warningsBuffer.String())
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r.Empty(outputBuffer.String())
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})
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})
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when("the CredentialIssuerConfig does not exist on the cluster", func() {
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it("returns an error", func() {
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kubeClientCreatorFuncWasCalled := false
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