ui-backend

README

Please refere to sveltos documentation.

What this repository is

This repo contains a service that exposes all APIs used by Sveltos frontend.

Authorization Header

Using authorization header is the only way to contact backend as an user, when accessing it over HTTP. To use authorization header you simply need to pass Authorization: Bearer <token> in every request. To create sample user and to get its token, see Creating sample user guide.

Get ClusterAPI powered clusters

/capiclusters

It is possible to filter by:

. namespace=<string> => returns only ClusterAPI powered clusters in a namespace whose name contains the speficied string

. name=<string> => returns only ClusterAPI powered clusters whose name contains the speficied string

. labels=<key1=value1,key2=value2> => returns only ClusterAPI powered clusters whose label matches the specified label selector

For instance:

http://localhost:9000/capiclusters?limit=1&skip=0&namespace=default&labels=env:fv,cluster.x-k8s.io%2Fcluster-name:clusterapi-workload

returns

{
  "totalClusters": 1,
  "managedClusters": [
    {
      "namespace": "default",
      "name": "clusterapi-workload",
      "clusterInfo": {
        "labels": {
          "cluster.x-k8s.io/cluster-name": "clusterapi-workload",
          "env": "fv",
          "topology.cluster.x-k8s.io/owned": ""
        },
        "version": "v1.27.0",
        "ready": true,
        "failureMessage": null
      }
    }
  ]
}

This API supports pagination. Use:

. limit=<int> to specify the number of ClusterAPI powered clusters the API will return

. skip=<int> to specify from which ClusterAPI powered cluster to start (Clusters are ordered by namespace/name)

Get SveltosClusters

/sveltosclusters

It is possible to filter by:

. namespace=<string> => returns only SveltosClusters in a namespace whose name contains the speficied string

. name=<string> => returns only SveltosClusters whose name contains the speficied string

. labels=<key1=value1,key2=value2> => returns only SveltosClusters whose label matches the specified label selector

For instance:

http://localhost:9000/sveltosclusters?limit=1&skip=0&namespace=mgmt&name=mgmt

returns

{
  "totalClusters": 1,
  "managedClusters": [
    {
      "namespace": "mgmt",
      "name": "mgmt",
      "clusterInfo": {
        "labels": null,
        "version": "v1.29.0",
        "ready": true,
        "failureMessage": null
      }
    }
  ]
}

This API supports pagination. Use:

. limit=<int> to specify the number of SveltosClusters the API will return

. skip=<int> to specify from which SveltosClusters to start (Clusters are ordered by namespace/name)

Get Helm Releases deployed in a cluster

/helmcharts?namespace=<namespace>&name=<cluster-name>&type=<cluster type>

where cluster type can either be capi for ClusterAPI powered clusters or sveltos for SveltosClusters

This API supports pagination. Use:

. limit=<int> to specify the number of helm releases the API will return

. skip=<int> to specify from which Helm release to start (Helm Releases are ordered by lastAppliedTime)

For instance:

http://localhost:9000/helmcharts?namespace=default&name=clusterapi-workload&type=capi

returns

{
  "totalHelmReleases": 4,
  "helmReleases": [
    {
      "repoURL": "https://prometheus-community.github.io/helm-charts",
      "releaseName": "prometheus",
      "namespace": "prometheus",
      "chartVersion": "23.4.0",
      "icon": "https://raw.githubusercontent.com/prometheus/prometheus.github.io/master/assets/prometheus_logo-cb55bb5c346.png",
      "lastAppliedTime": "2024-04-28T13:49:29Z",
      "profileName": "ClusterProfile/prometheus-grafana"
    },
    {
      "repoURL": "https://grafana.github.io/helm-charts",
      "releaseName": "grafana",
      "namespace": "grafana",
      "chartVersion": "6.58.9",
      "icon": "https://raw.githubusercontent.com/grafana/grafana/master/public/img/logo_transparent_400x.png",
      "lastAppliedTime": "2024-04-28T13:49:38Z",
      "profileName": "ClusterProfile/prometheus-grafana"
    },
    {
      "repoURL": "https://kyverno.github.io/kyverno/",
      "releaseName": "kyverno-latest",
      "namespace": "kyverno",
      "chartVersion": "3.1.4",
      "icon": "https://github.com/kyverno/kyverno/raw/main/img/logo.png",
      "lastAppliedTime": "2024-04-28T13:49:32Z",
      "profileName": "ClusterProfile/deploy-kyverno"
    },
    {
      "repoURL": "https://helm.nginx.com/stable/",
      "releaseName": "nginx-latest",
      "namespace": "nginx",
      "chartVersion": "1.1.3",
      "icon": "https://raw.githubusercontent.com/nginxinc/kubernetes-ingress/v3.4.3/charts/nginx-ingress/chart-icon.png",
      "lastAppliedTime": "2024-04-28T13:49:36Z",
      "profileName": "ClusterProfile/nginx"
    }
  ]
}

Get Kubernetes Resources deployed in a cluster

/resources?namespace=<namespace>&name=<cluster-name>&type=<cluster type>

where cluster type can either be capi for ClusterAPI powered clusters or sveltos for SveltosClusters

This API supports pagination. Use:

. limit=<int> to specify the number of Kubernetes resources the API will return

. skip=<int> to specify from which Kubernetes resources to start (Kubernetes resources are ordered by lastAppliedTime)

For instance:

http://localhost:9000/resources?namespace=default&name=clusterapi-workload&type=capi

returns

{
  "totalResources": 2,
  "resources": [
    {
      "name": "nginx",
      "group": "",
      "kind": "Namespace",
      "version": "v1",
      "lastAppliedTime": "2024-04-28T13:52:26Z",
      "profileNames": [
        "ClusterProfile/deploy-resources"
      ]
    },
    {
      "name": "",
      "group": "",
      "kind": "",
      "version": "",
      "profileNames": null
    }
  ]
}

Get Cluster Status

/getClusterStatus?namespace=<namespace>&name=<cluster-name>&type=<cluster-type>

where cluster type can either be capi for ClusterAPI powered clusters or sveltos for SveltosClusters

This API supports pagination. Use:

. limit=<int> to specify the number of Kubernetes resources the API will return

. skip=<int> to specify from which Kubernetes resources to start (Kubernetes resources are ordered by lastAppliedTime)

For instance:

http://localhost:9000/resources?namespace=default&name=clusterapi-workload&type=capi

returns

{
  "profiles": [
    {
      "profileName": "deploy-kyverno",
      "profileType": "ClusterProfile",
      "featureID": "Helm",
      "status": "Provisioned"
    },
    {
      "profileName": "deploy-resources",
      "profileType": "ClusterProfile",
      "featureID": "Resources",
      "status": "Provisioned"
    },
    {
      "profileName": "nginx",
      "profileType": "ClusterProfile",
      "featureID": "Helm",
      "status": "Provisioned"
    }
  ],
  "totalResources": 3
}

How to get token

First, create a service account in the desired namespace:

kubectl create sa <user> -n <namespace>

Give the service account permissions to access the Calico Enterprise Manager UI, and a Calico Enterprise cluster role:

kubectl create clusterrolebinding <binding_name> --clusterrole <role_name> --serviceaccount <namespace>:<service_account>

where:

• binding_name is a descriptive name for the rolebinding.
• role_name is one of the default cluster roles (or a custom cluster role) specifying permissions.
• namespace is the service account's namespace.
• service_account is the service account that the permissions are being associated with.

Next, create a bearer token for the service account. Using the running example of a service account named, sveltos in the default namespace:

kubectl create token sveltos --duration=24h

it should print somthing like

eyJhbGciOiJSUzI1NiIsImtpZCI6IkVsYW8zRU9BMWw3UTZ2QUpjNGFRLXljcTU4M1NhaXBZd1ZNWXJySkVtMTAifQ.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.JlEN38Whyb4mlNsWkC4RAQ82dVUJmWvmdvar7VVxEw2SUgoQthQQPsV-l28bGYpuQspFlsdaO2JRdhm6MGctlMJziweHHm3PNv_RBnFMPRQ01y7ciaRZXE7HEB3sAndvBEQKNWyo4wmmyRnEE2tR79ICQRTLmuWO17MjRIZFChXMHsCsam5OsuE6mE1fj3RSUSbvfRbQwrsTcWOrnYxzquyNVyJyOKxQ97Nm175rez5x9EflHPwueYu5FmNgz3cxMsdkHwkrMnhMqMyNN8WBqKUrju-gPJ9GB-cOcrR_38JyeQBPXYTo9J0tueIWEyaiwKvmPqAsnyHKPT5p-7hFCQ

Contributing

❤️ Your contributions are always welcome! If you want to contribute, have questions, noticed any bug or want to get the latest project news, you can connect with us in the following ways:

1. Open a bug/feature enhancement on github
2. Chat with us on the Slack in the #projectsveltos channel
3. Contact Us

License

Copyright 2022.

Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at

http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License.