update readme

.gitignore

@@ -14,3 +14,4 @@
 # Ignore the built binary
 cert-manager-webhook-dnspod
 _out
+__main__

README.md

@@ -1,40 +1,125 @@
-# ACME webhook example
+# DNSPod Webhook for Cert Manager
 
-The ACME issuer type supports an optional 'webhook' solver, which can be used
-to implement custom DNS01 challenge solving logic.
+This is a webhook solver for [DNSPod](https://www.dnspod.cn).
 
-This is useful if you need to use cert-manager with a DNS provider that is not
-officially supported in cert-manager core.
+## Prerequisites
 
-## Why not in core?
+* [cert-manager](https://github.com/jetstack/cert-manager): *tested with 0.8.0*
+    - [Installing on Kubernetes](https://docs.cert-manager.io/en/release-0.8/getting-started/install/kubernetes.html)
 
-As the project & adoption has grown, there has been an influx of DNS provider
-pull requests to our core codebase. As this number has grown, the test matrix
-has become un-maintainable and so, it's not possible for us to certify that
-providers work to a sufficient level.
+## Installation
 
-By creating this 'interface' between cert-manager and DNS providers, we allow
-users to quickly iterate and test out new integrations, and then packaging
-those up themselves as 'extensions' to cert-manager.
+```console
+$ helm install --name cert-manager-webhook-dnspod ./deploy/example-webhook
+```
 
-We can also then provide a standardised 'testing framework', or set of
-conformance tests, which allow us to validate the a DNS provider works as
-expected.
+## Issuer
 
-## Creating your own webhook
+1. Generate API ID and API Token from DNSPod (https://support.dnspod.cn/Kb/showarticle/tsid/227/)
+2. Create secret to store the API Token
+```console
+$ kubectl --namespace cert-manager create secret generic \
+    dnspod-credentials --from-literal=api-token='<DNSPOD_API_TOKEN>'
+```
 
-Webhook's themselves are deployed as Kubernetes API services, in order to allow
-administrators to restrict access to webhooks with Kubernetes RBAC.
+3. Grant permission for service-account to get the secret
+```yaml
+apiVersion: rbac.authorization.k8s.io/v1
+kind: Role
+metadata:
+  name: cert-manager-webhook-dnspod:secret-reader
+rules:
+- apiGroups: [""]
+  resources: ["secrets"]
+  resourceNames: ["dnspod-credentials"]
+  verbs: ["get", "watch"]
+---
+apiVersion: rbac.authorization.k8s.io/v1beta1
+kind: RoleBinding
+metadata:
+  name: cert-manager-webhook-dnspod:secret-reader
+roleRef:
+  apiGroup: rbac.authorization.k8s.io
+  kind: Role
+  name: cert-manager-webhook-dnspod:secret-reader
+subjects:
+  - apiGroup: ""
+    kind: ServiceAccount
+    name: cert-manager-webhook-dnspod
+```
 
-This is important, as otherwise it'd be possible for anyone with access to your
-webhook to complete ACME challenge validations and obtain certificates.
+4. Create a staging issuer *Optional*
+```yaml
+apiVersion: certmanager.k8s.io/v1alpha1
+kind: Issuer
+metadata:
+  name: letsencrypt-staging
+spec:
+  acme:
+    # The ACME server URL
+    server: https://acme-staging-v02.api.letsencrypt.org/directory
 
-To make the set up of these webhook's easier, we provide a template repository
-that can be used to get started quickly.
+    # Email address used for ACME registration
+    email: user@example.com # REPLACE THIS WITH YOUR EMAIL!!!
 
-### Creating your own repository
+    # Name of a secret used to store the ACME account private key
+    privateKeySecretRef:
+      name: letsencrypt-staging
 
-### Running the test suite
+    solvers:
+    - dns01:
+        webhook:
+          groupName: example.com # REPLACE THIS TO YOUR GROUP
+          solverName: dnspod
+          config:
+            apiID: 12345 # REPLACE WITH API ID FROM DNSPOD!!!
+            apiTokenSecretRef:
+              key: api-token
+              name: dnspod-credentials
+```
+
+5. Create a production issuer
+```yaml
+apiVersion: certmanager.k8s.io/v1alpha1
+kind: Issuer
+metadata:
+  name: letsencrypt-prod
+spec:
+  acme:
+    # The ACME server URL
+    server: https://acme-v02.api.letsencrypt.org/directory
+
+    # Email address used for ACME registration
+    email: user@example.com # REPLACE THIS WITH YOUR EMAIL!!!
+
+    # Name of a secret used to store the ACME account private key
+    privateKeySecretRef:
+      name: letsencrypt-prod
+
+    solvers:
+    - dns01:
+        webhook:
+          groupName: example.com # REPLACE THIS TO YOUR GROUP
+          solverName: dnspod
+          config:
+            apiID: 12345 # REPLACE WITH API ID FROM DNSPOD!!!
+            apiTokenSecretRef:
+              key: api-token
+              name: dnspod-credentials
+```
+
+## Certificate
+
+1. Issue a certificate
+```yaml
+#TODO
+```
+
+### Automatically creating Certificates for Ingress resources
+
+See [this](https://docs.cert-manager.io/en/latest/tasks/issuing-certificates/ingress-shim.html).
+
+## Development
 
 All DNS providers **must** run the DNS01 provider conformance testing suite,
 else they will have undetermined behaviour when used with cert-manager.
@@ -44,11 +129,18 @@ DNS01 webhook.**
 
 An example Go test file has been provided in [main_test.go]().
 
-You can run the test suite with:
+Before you can run the test suite, you need to download the test binaries:
+
+```console
+$ mkdir __main__
+$ wget -O- https://storage.googleapis.com/kubebuilder-tools/kubebuilder-tools-1.14.1-darwin-amd64.tar.gz | tar x -
+$ mv kubebuilder __main__/hack
+```
+
+Then modify `testdata/my-custom-solver/config.json` to setup the configs.
+
+Now you can run the test suite with:
 
 ```bash
 $ TEST_ZONE_NAME=example.com go test .
 ```
-
-The example file has a number of areas you must fill in and replace with your
-own options in order for tests to pass.