feat(cloudflare-tunnel): add tunnel

README.md

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+# Using KSOPS and adding secrets
+
+https://github.com/viaduct-ai/kustomize-sops
+
+## 1. Create the resource
+
+```
+cat <<EOF > secret.yaml
+apiVersion: v1
+kind: Secret
+metadata:
+  name: mysecret
+type: Opaque
+data:
+  username: YWRtaW4=
+  password: MWYyZDFlMmU2N2Rm
+EOF
+```
+
+## 2. Encrypt the resource
+
+Note 1: the encryption key is included in the repo, but the decryption key is not
+
+Note 2: Delete the plaintext resource after encrypting it.
+
+```
+# Encrypt with SOPS CLI
+# Specify SOPS configuration in .sops.yaml
+sops -e secret.yaml > secret.enc.yaml
+```
+
+## 3. Create teh KSOPS kustomize generator
+
+```
+# Create a local Kubernetes Secret
+cat <<EOF > secret-generator.yaml
+apiVersion: viaduct.ai/v1
+kind: ksops
+metadata:
+  # Specify a name
+  name: example-secret-generator
+  annotations:
+    config.kubernetes.io/function: |
+        exec:
+          # if the binary is in your PATH, you can do
+          path: ksops
+          # otherwise, path should be relative to manifest files, like
+          # path: ../../../ksops
+files:
+  - ./secret.enc.yaml
+EOF
+```
+
+## 4. Add to kustomization
+
+```
+generators:
+  - ./secret-generator.yaml
+```
+
+## 5. Build to test
+
+```
+kustomize build --enable_alpha_plugins path/to/kustomization.yaml
+```