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Merge pull request opencloud-eu#92 from opencloud-eu/external-nats
support external nats
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‎charts/opencloud/README.md‎

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@@ -288,6 +288,27 @@ This will prepend `my-registry.com/` to all image references in the chart. For e
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| `opencloud.storage.s3.external.bucket` | External S3 bucket | `""` |
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| `opencloud.storage.s3.external.createBucket` | Create bucket if it doesn't exist | `true` |
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### NATS Messaging Configuration
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| Parameter | Description | Default |
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| ---------- | ----------- | ------- |
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| `opencloud.nats.external.enabled` | Use an external NATS server (required for high availability) | `false` |
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| `opencloud.nats.external.endpoint` | Endpoint of the external NATS server | `nats.opencloud-nats.svc.cluster.local:4222` |
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| `opencloud.nats.external.cluster` | NATS cluster name | `opencloud-cluster` |
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| `opencloud.nats.external.tls.enabled` | Enable TLS for communication with NATS | `false` |
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| `opencloud.nats.external.tls.certTrusted` | Set to `false` if the external NATS server's certificate is not trusted by default (e.g. self-signed) | `true` |
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| `opencloud.nats.external.tls.insecure` | Disable certificate validation (not recommended for production) | `false` |
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| `opencloud.nats.external.tls.caSecretName` | Name of the Kubernetes Secret containing the CA certificate (only required if `certTrusted` is `false`) | `opencloud-nats-ca` |
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> 💡 The secret referenced by `caSecretName` **must contain a key named `ca.crt`** with the root CA certificate used to verify the external NATS server.
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> Example:
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>
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> ```bash
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> kubectl create secret generic opencloud-nats-ca \
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> --from-file=ca.crt=./path/to/nats-ca.pem \
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> --namespace your-namespace
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> ```
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### Keycloak Settings
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By default the chart deploys an internal keycloak. It can be disabled and replaced with an external IdP.

‎charts/opencloud/templates/collaboration/deployment.yaml‎

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@@ -68,8 +68,15 @@ spec:
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value: "0.0.0.0:9300"
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- name: MICRO_REGISTRY
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value: "nats-js-kv"
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{{- if .Values.opencloud.nats.external.enabled }}
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- name: OC_PERSISTENT_STORE_NODES
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value: {{ .Values.opencloud.nats.external.endpoint | quote }}
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- name: MICRO_REGISTRY_ADDRESS
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value: {{ .Values.opencloud.nats.external.endpoint | quote }}
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{{- else }}
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- name: MICRO_REGISTRY_ADDRESS
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value: "{{ include "opencloud.opencloud.fullname" . }}.{{ .Release.Namespace }}.svc.cluster.local:9233"
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{{- end }}
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{{- if .Values.onlyoffice.enabled }}
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- name: COLLABORATION_WOPI_SRC
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# onlyoffice has to connect to the wopi server from the web

‎charts/opencloud/templates/opencloud/deployment.yaml‎

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- name: OC_ADD_RUN_SERVICES
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value: {{ join "," . | quote }}
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{{- end }}
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{{- with .Values.opencloud.excludeServices }}
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{{- $exclude := .Values.opencloud.excludeServices | default (list) }}
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{{- if .Values.opencloud.nats.external.enabled }}
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{{- $exclude = append $exclude "nats" }}
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{{- end }}
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{{- if gt (len $exclude) 0 }}
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- name: OC_EXCLUDE_RUN_SERVICES
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value: {{ join "," . | quote }}
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value: {{ join "," $exclude | quote }}
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{{- end }}
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# Do not use SSL between proxy and OpenCloud
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- name: PROXY_TLS
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# Demo users
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- name: IDM_CREATE_DEMO_USERS
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value: {{ .Values.opencloud.createDemoUsers | quote }}
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# Make the registry available to the app provider containers
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{{- if .Values.opencloud.nats.external.enabled }}
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# Use the external nats as the service registry
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- name: MICRO_REGISTRY_ADDRESS
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value: {{ .Values.opencloud.nats.external.endpoint | quote }}
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# Use the external nats as the cache and persistent store
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- name: OC_CACHE_STORE_NODES
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value: {{ .Values.opencloud.nats.external.endpoint | quote }}
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- name: OC_PERSISTENT_STORE_NODES
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value: {{ .Values.opencloud.nats.external.endpoint | quote }}
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# Use the external nats as the messaging system
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- name: OC_EVENTS_ENDPOINT
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value: {{ .Values.opencloud.nats.external.endpoint | quote }}
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- name: OC_EVENTS_CLUSTER
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value: {{ .Values.opencloud.nats.external.cluster | quote }}
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- name: OC_EVENTS_ENABLE_TLS
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value: {{ .Values.opencloud.nats.external.tls.enabled | quote }}
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- name: OC_EVENTS_TLS_INSECURE
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value: {{ .Values.opencloud.nats.external.tls.insecure | quote }}
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{{- if not .Values.opencloud.nats.external.tls.certTrusted }}
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- name: OC_EVENTS_TLS_ROOT_CA_CERTIFICATE
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value: /etc/opencloud/nats-ca/ca.crt
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{{- end }}
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{{- else }}
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- name: MICRO_REGISTRY_ADDRESS
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value: "127.0.0.1:9233"
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# Make the registry available to the app provider containers
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- name: NATS_NATS_HOST
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value: "0.0.0.0"
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- name: NATS_NATS_PORT
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value: "9233"
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{{- end }}
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# CSP configuration
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- name: PROXY_CSP_CONFIG_FILE_LOCATION
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value: "/etc/opencloud/csp.yaml"
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- name: config-files
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mountPath: /etc/opencloud/banned-password-list.txt
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subPath: banned-password-list.txt
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{{- if and (.Values.opencloud.nats.external.enabled) (not .Values.opencloud.nats.external.tls.certTrusted) }}
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- name: nats-ca
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mountPath: /etc/opencloud/nats-ca
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readOnly: true
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{{- end }}
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resources:
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{{- toYaml .Values.opencloud.resources | nindent 12 }}
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volumes:
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- name: proxy-config
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configMap:
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name: {{ include "opencloud.opencloud.fullname" . }}-proxy-config
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{{ if and (.Values.opencloud.nats.external.enabled) (not .Values.opencloud.nats.external.tls.certTrusted) }}
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- name: nats-ca
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secret:
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secretName: {{ .Values.opencloud.nats.external.tls.caSecretName }}
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{{ end }}
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{{- if .Values.webExtensions.enabled }}
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- name: extensions
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emptyDir: {}

‎charts/opencloud/templates/opencloud/service.yaml‎

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targetPort: http
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protocol: TCP
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name: http
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{{- if not .Values.opencloud.nats.external.enabled }}
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- port: 9233
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targetPort: 9233
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protocol: TCP
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name: nats
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{{- end }}
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selector:
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{{- include "opencloud.selectorLabels" . | nindent 4 }}
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app.kubernetes.io/component: opencloud

‎charts/opencloud/values.yaml‎

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# For very long lists override the file 'files/opencloud/banned-password-list.txt'
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bannedPasswordList: |-
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nats:
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external:
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# -- Use an external NATS messaging system instead of the internal one.
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# Recommended for all production instances.
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# Needs to be used if HighAvailability is needed.
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# Needs to be used if OpenCloud shall be used by more than a 2-digit user count.
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enabled: false
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# -- Endpoint of the messaging system.
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endpoint: nats.opencloud-nats.svc.cluster.local:4222
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# -- Cluster name to use with the messaging system.
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cluster: opencloud-cluster
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tls:
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# -- Enables TLS encrypted communication with the messaging system.
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# Recommended for production installations.
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enabled: false
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# -- Set only to false, if the certificate of your messaging system service is not trusted.
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# If set to false, you need to put the CA cert of the messaging system server into the secret referenced by "caSecretName"
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certTrusted: true
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# -- Disables SSL certificate checking for connections to the messaging system server.
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# -- For self signed certificates, consider to put the CA cert of the messaging system secure server into the secret referenced by "caSecretName"
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# Not recommended for production installations.
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insecure: false
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# Use existing CA secret for nats credentials (Note: secretKeyName must be 'ca.crt' with the root CA certificate for NATS)
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# Only used if certTrusted is false
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caSecretName : opencloud-nats-ca
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# =====================================================================
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# EMAIL (SMTP)
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# =====================================================================

‎deployments/nats/README.md‎

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# OpenCloud with NATS deployment example
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## Introduction
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This example shows how to deploy OpenCloud with NATS as message bus and store.
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It will deploy an OpenCloud instance and NATS, preconfigured to work together.
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***Note***: This example is not intended for production use. It is intended to get a working OpenCloud
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with NATS running in Kubernetes as quickly as possible. It is not hardened in any way.
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## Getting started
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### Prerequisites
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This example requires the following things to be installed:
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- [Kubernetes](https://kubernetes.io/) cluster, with an ingress controller installed.
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- [Helm](https://helm.sh/) v3
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- [Helmfile](https://github.com/helmfile/helmfile)
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### End result
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After following the steps in this guide, you should be able to access the following endpoint, you
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may want to add these to your `/etc/hosts` file pointing to your ingress controller IP:
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- https://cloud.opencloud.test
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Note that if you want to use your own hostname and domain, you will have to change the `global.domain.opencloud` value.
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### Deploying
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In this directory, run the following commands:
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```bash
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$ helmfile sync
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```
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This will deploy OpenCloud and NATS.

‎deployments/nats/helmfile.yaml‎

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repositories:
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- name: nats
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url: https://nats-io.github.io/k8s/helm/charts
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releases:
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- name: nats
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namespace: opencloud-nats
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chart: nats/nats
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version: 1.3.7
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labels:
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ci-lint-skip: true # skip linting this chart in CI
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values:
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- config:
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cluster:
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enabled: true
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replicas: 3
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name: "opencloud-cluster"
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jetstream:
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enabled: true
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memoryStore:
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enabled: true
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maxSize: 2Gi
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merge:
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00$include: auth.conf
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- configMap:
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merge:
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data:
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# bcrypted password generated with `nats server passwd`:
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# nats-sys: O0Z1O5WG2SIisXUToxUPxQUx
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# opencloud-admin: pwnnH3S42D5dZL90paHEsQop
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auth.conf: |
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accounts {
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$SYS {
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users = [
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{ user: "nats-sys",
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pass: "$2a$11$5BJO2C7WJLjuOm8FBjGjCugs//lL.Sp9gVIBWzU.fITE5MfCbHCMK"
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}
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]
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}
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$OPENCLOUD {
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jetstream: enabled
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users = [
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{ user: "opencloud"
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},
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{ user: "opencloud-admin",
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pass: "$2a$11$6SAHUpN.m2TXOMSdSZVWsOjQ69VCQOBUmxD8FZ/aJpdvzSEOfRodC"
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}
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]
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}
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}
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no_auth_user: opencloud
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- name: nack-crds
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namespace: opencloud-nack
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chart: ./nack
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labels:
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ci-lint-skip: true # skip linting this chart in CI
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- name: nack-streams
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namespace: opencloud-nats
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chart: ./streams
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labels:
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ci-lint-skip: true # skip linting this chart in CI
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needs:
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- opencloud-nats/nats
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- opencloud-nack/nack-crds
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- name: nack
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namespace: opencloud-nack
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chart: nats/nack
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version: 0.29.0
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labels:
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ci-lint-skip: true # skip linting this chart in CI
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values:
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- namespaced: false
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- readOnly: false
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needs:
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- opencloud-nack/nack-crds
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- name: opencloud
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chart: ../../charts/opencloud
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namespace: opencloud
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values:
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- global:
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# TLS settings
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tls:
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# Enable TLS
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enabled: true
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secretName: opencloud-wildcard-tls
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# Use self-signed certificates
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selfSigned: true
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- opencloud:
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nats:
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# Use an external NATS server (required for high availability)
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external:
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enabled: true
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# these are the default values, you can change them if needed
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#endpoint: nats.opencloud-nats.svc.cluster.local:4222
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#cluster: opencloud-cluster
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tls:
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# we disable TLS verification for this example
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# for production, you should set this to true and provide a CA certificate
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enabled: false
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- collabora:
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# Enable Collabora
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enabled: true
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ssl:
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enabled: false
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verification: false
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- onlyoffice:
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enabled: false
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- ingress:
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# Enable Ingress
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enabled: true
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# Ingress class name
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annotationsPreset: traefik

‎deployments/nats/nack/README.md‎

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Contains the CustomResourceDefinitions for NATS Controllers for Kubernetes (NACK)
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Taken from https://github.com/nats-io/nack/blob/v0.18.2/deploy/crds.yml

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