feat: add fallback_cp configuration to gateway chart (#226)

Signed-off-by: Nic <[email protected]>

Author: nic-6443

charts/gateway/Chart.yaml

@@ -14,7 +14,7 @@ type: application
 # This is the chart version. This version number should be incremented each time you make changes
 # to the chart and its templates, including the app version.
 # Versions are expected to follow Semantic Versioning (https://semver.org/)
-version: 0.2.33
+version: 0.2.34
 
 # This is the version number of the application being deployed. This version number should be
 # incremented each time you make changes to the application. Versions are not expected to

charts/gateway/README.md

@@ -147,6 +147,7 @@ The command removes all the Kubernetes components associated with the chart and
 | deployment.certs.certsSecret | string | `""` | secret name used for decoupled mode |
 | deployment.certs.mTLSCACert | string | `""` | mTLS CA cert filename in mTLSCACertSecret |
 | deployment.certs.mTLSCACertSecret | string | `""` | trusted_ca_cert name in certsSecret |
+| deployment.fallback_cp | object | `{}` | use cloud storage as the fallback control plane, should be consistent with the same configuration in control plane side. |
 | discovery.enabled | bool | `false` | Enable or disable API7 Gateway integration service discovery |
 | discovery.registry | object | `{}` | Registry is the same to the one in APISIX [config-default.yaml](https://github.com/apache/apisix/blob/master/conf/config-default.yaml#L281), and refer to such file for more setting details. also refer to [this documentation for integration service discovery](https://apisix.apache.org/docs/apisix/discovery) |
 | dns.resolvers[0] | string | `"127.0.0.1"` |  |

charts/gateway/templates/configmap.yaml

@@ -256,6 +256,13 @@ data:
     {{- end }}
 
     deployment:
+      {{- if .Values.deployment.fallback_cp }}
+      role: data_plane
+      role_data_plane:
+        config_provider: yaml
+      fallback_cp:
+        {{- toYaml .Values.deployment.fallback_cp | nindent 8 }}
+      {{- else }}
       role: traditional
       role_traditional:
         config_provider: etcd
@@ -334,5 +341,6 @@ data:
           sni: "{{ .Values.etcd.auth.tls.sni }}"
           {{- end }}
         {{- end }}
+      {{- end }}
     {{- end }}
 {{- end }}

charts/gateway/values.yaml

@@ -236,6 +236,16 @@ rbac:
   create: false
 
 deployment:
+  # -- use cloud storage as the fallback control plane,
+  # should be consistent with the same configuration in control plane side.
+  fallback_cp: {}
+  #  aws_s3:
+  #    access_key: "access"
+  #    secret_key: "secret"
+  #    region: "ap-south-1"
+  #    resource_bucket: "to-push-resource-data"
+  #    config_bucket: "to-push-config-data"
+
   # -- certs used for certificates in decoupled mode
   certs:
     # -- secret name used for decoupled mode