KropCloud/cert-manager-webhook-example
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This commit is contained in:
Robin Scherrer 2021-03-02 14:55:56 +01:00
parent 67bcf8b172
commit 0efd9b74ea
2 changed files with 18 additions and 20 deletions
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36
main.go
View file

@ -26,15 +26,15 @@ func main() {
// webhook, where the Name() method will be used to disambiguate between
// the different implementations.
cmd.RunWebhookServer(GroupName,
&customDNSProviderSolver{},
&bluecatDNSProviderSolver{},
)
}
// customDNSProviderSolver implements the provider-specific logic needed to
// bluecatDNSProviderSolver implements the provider-specific logic needed to
// 'present' an ACME challenge TXT record for your own DNS provider.
// To do so, it must implement the `github.com/jetstack/cert-manager/pkg/acme/webhook.Solver`
// interface.
type customDNSProviderSolver struct {
type bluecatDNSProviderSolver struct {
// If a Kubernetes 'clientset' is needed, you must:
// 1. uncomment the additional `client` field in this structure below
// 2. uncomment the "k8s.io/client-go/kubernetes" import at the top of the file
@ -44,7 +44,7 @@ type customDNSProviderSolver struct {
//client kubernetes.Clientset
}
// customDNSProviderConfig is a structure that is used to decode into when
// bluecatDNSProviderConfig is a structure that is used to decode into when
// solving a DNS01 challenge.
// This information is provided by cert-manager, and may be a reference to
// additional configuration that's needed to solve the challenge for this
@ -58,14 +58,12 @@ type customDNSProviderSolver struct {
// You should not include sensitive information here. If credentials need to
// be used by your provider here, you should reference a Kubernetes Secret
// resource and fetch these credentials using a Kubernetes clientset.
type customDNSProviderConfig struct {
// Change the two fields below according to the format of the configuration
// to be decoded.
// These fields will be set by users in the
// `issuer.spec.acme.dns01.providers.webhook.config` field.
//Email string `json:"email"`
//APIKeySecretRef v1alpha1.SecretKeySelector `json:"apiKeySecretRef"`
type bluecatDNSProviderConfig struct {
Username string `json:"username"`
Password string `json:"password"`
ServerURL string `json:"server_url"`
ConfigName string `json:"config_name"`
DNSView string `json:"dns_view"`
}
// Name is used as the name for this DNS solver when referencing it on the ACME
@ -74,8 +72,8 @@ type customDNSProviderConfig struct {
// solvers configured with the same Name() **so long as they do not co-exist
// within a single webhook deployment**.
// For example, `cloudflare` may be used as the name of a solver.
func (c *customDNSProviderSolver) Name() string {
return "my-custom-solver"
func (c *bluecatDNSProviderSolver) Name() string {
return "bluecat"
}
// Present is responsible for actually presenting the DNS record with the
@ -83,7 +81,7 @@ func (c *customDNSProviderSolver) Name() string {
// This method should tolerate being called multiple times with the same value.
// cert-manager itself will later perform a self check to ensure that the
// solver has correctly configured the DNS provider.
func (c *customDNSProviderSolver) Present(ch *v1alpha1.ChallengeRequest) error {
func (c *bluecatDNSProviderSolver) Present(ch *v1alpha1.ChallengeRequest) error {
cfg, err := loadConfig(ch.Config)
if err != nil {
return err
@ -102,7 +100,7 @@ func (c *customDNSProviderSolver) Present(ch *v1alpha1.ChallengeRequest) error {
// value provided on the ChallengeRequest should be cleaned up.
// This is in order to facilitate multiple DNS validations for the same domain
// concurrently.
func (c *customDNSProviderSolver) CleanUp(ch *v1alpha1.ChallengeRequest) error {
func (c *bluecatDNSProviderSolver) CleanUp(ch *v1alpha1.ChallengeRequest) error {
// TODO: add code that deletes a record from the DNS provider's console
return nil
}
@ -116,7 +114,7 @@ func (c *customDNSProviderSolver) CleanUp(ch *v1alpha1.ChallengeRequest) error {
// provider accounts.
// The stopCh can be used to handle early termination of the webhook, in cases
// where a SIGTERM or similar signal is sent to the webhook process.
func (c *customDNSProviderSolver) Initialize(kubeClientConfig *rest.Config, stopCh <-chan struct{}) error {
func (c *bluecatDNSProviderSolver) Initialize(kubeClientConfig *rest.Config, stopCh <-chan struct{}) error {
///// UNCOMMENT THE BELOW CODE TO MAKE A KUBERNETES CLIENTSET AVAILABLE TO
///// YOUR CUSTOM DNS PROVIDER
@ -133,8 +131,8 @@ func (c *customDNSProviderSolver) Initialize(kubeClientConfig *rest.Config, stop
// loadConfig is a small helper function that decodes JSON configuration into
// the typed config struct.
func loadConfig(cfgJSON *extapi.JSON) (customDNSProviderConfig, error) {
cfg := customDNSProviderConfig{}
func loadConfig(cfgJSON *extapi.JSON) (bluecatDNSProviderConfig, error) {
cfg := bluecatDNSProviderConfig{}
// handle the 'base case' where no configuration has been provided
if cfgJSON == nil {
return cfg, nil

2
main_test.go
View file

@ -20,7 +20,7 @@ func TestRunsSuite(t *testing.T) {
//
// Uncomment the below fixture when implementing your custom DNS provider
//fixture := dns.NewFixture(&customDNSProviderSolver{},
//fixture := dns.NewFixture(&bluecatDNSProviderSolver{},
// dns.SetResolvedZone(zone),
// dns.SetAllowAmbientCredentials(false),
// dns.SetManifestPath("testdata/my-custom-solver"),