In ONAP4K8s no security (Mutual TLS, Authentication and Authorization) and traffic management (Load balancing, Circuit breaking, Traffic control & rate limiting) are not part of the ONAP4K8s micro-services. Also, log collection, metrics collection and distributed tracing for troubleshooting are all not part of the ONAP4K8s micro-services. CNCF architecture is used for these to improve productivity and reduce the errors.
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Steps for setting up ONAP4K8s with Istio + Authservice
Keycloak
Keycloak is an open source software product to allow single sign-on with Identity Management and Access Management. Keycloak is being used here as an example of IAM service to be used with EMCO.
In a kubernetes cluster where Keycloak is going to be installed follow these steps to create keyclock deployment:
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Now when you try to assess EMCO you'll get 403 error. [https://<Istio Ingress service IP Address:port>/v2/projects]
Authservice Setup in Istio Ingress-gateway
Setup configmap required by Authservice.
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Currently, there is not yet a native way to install Authservice into the Istio Ingress-gateway. We are manually modifying the Deployment of istio-ingressgateway to add the Authservice container. Add the contianer below. Note: Change the container section in ingress-gateway deployment to make it possible to add multiple containers.
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$ kubectl edit deployments istio-ingressgateway -n istio-system
Under containers section add:
- name: authservice
image: adrianlzt/authservice:0.3.1-d3cd2d498169
imagePullPolicy: Always
ports:
- containerPort: 10003
volumeMounts:
- name: emco-authservice-configmap-volume
mountPath: /etc/authservice
In the volumes section add:
- name: emco-authservice-configmap-volume
configMap:
name: emco-authservice-configmap
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Try accessing EMCO URL agian [https://<Istio Ingress service IP Address:port>/v2/projects]. This will take you to the Keycloak login page and from there user can get authenticated before allowed to access EMCO resources.
Setup with multiple OAuth2 Servers.
The following changes are required if different OAuth2 servers are needed for different projects. All other configurations remain the same.
Create virtual service to support multiple servers
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| Code Block | ||||
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---
apiVersion: "authentication.istio.io/v1alpha1"
kind: "Policy"
metadata:
name: "orchestrator-authn-policy"
namespace: istio-system
spec:
origins:
- jwt:
issuer: "https://x.x.x.x:31567/auth/realms/enterprise1"
jwksUri: "http://x.x.x.x:32431/auth/realms/enterprise1/protocol/openid-connect/certs"
- jwt:
issuer: "https://x.x.x.x:31567/auth/realms/enterprise2"
jwksUri: "http://x.x.x.x:32431/auth/realms/enterprise2/protocol/openid-connect/certs"
principalBinding: USE_ORIGIN
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Setup configmap
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for multiple servers.
The following example shows how to setup authservice with multiple OAUTH2 keycloak servers.
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|---|---|---|---|---|
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---
kind: ConfigMap
apiVersion: v1
metadata:
name: emco-authservice-configmap
namespace: istio-system
data:
config.json: |
{
"listen_address": "127.0.0.1",
"listen_port": "10003",
"log_level": "trace",
"threads": 8,
"chains": [
{
"name": "idp_filter_chain_1",
"match": {
"header": ":path",
"prefix": "/v2/projects/enterprise1"
},
"filters": [
{
"oidc":
{
"authorization_uri": "https://x.x.x.x:31567<port>/auth/realms/enterprise1/protocol/openid-connect/auth",
"token_uri": "https://x.x.x.x:31567<port>/auth/realms/enterprise1/protocol/openid-connect/token",
"callback_uri": "https://x.x.x.x:31063<port>/v2/projects/enterprise1/oauth/callback",
"jwks": "{\"keys\":[{\"kid\":\"xxxxx\",\"kty\":\"RSA\",\"alg\":\"RS256\",\"use\":\"sig\",\"n\":\"zzzzzzz\",\"e\":\"AQAB\",\"x5c\":[\"xxxxxx\"],\"x5t\":\"z7Qrc2nAlK8EVmkiKtz0bOWxugE\",\"x5t#S256\":\"xxxxxxxxx\"}]}",
"client_id": "emco",
"client_secret": "xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx",
"trusted_certificate_authority": "-----BEGIN CERTIFICATE-----\r\nxxxxxxxx\r\n-----END CERTIFICATE-----\r\n",
"scopes": [],
"id_token": {
"preamble": "Bearer",
"header": "Authorization"
},
"access_token": {
"preamble": "Bearer",
"header": "Authorization"
}
}
}
]
},
{
"name": "idp_filter_chain_2",
"match": {
"header": ":path",
"prefix": "/v2/projects/enterprise2"
},
"filters": [
{
"oidc":
{
"authorization_uri": "https://x.x.x.x:31567<port>/auth/realms/enterprise2/protocol/openid-connect/auth",
"token_uri": "https://x.x.x.x:31567<port>/auth/realms/enterprise2/protocol/openid-connect/token",
"callback_uri": "https://x.x.x.x:31063<port>/v2/projects/enterprise2/oauth/callback",
"jwks": "{\"keys\":[{\"kid\":\"xxxx\",\"kty\":\"RSA\",\"alg\":\"RS256\",\"use\":\"sig\",\"n\":\"xxxx\",\"e\":\"AQAB\",\"x5c\":[\"xxxxxx\"],\"x5t\":\"xxxxxxx\",\"x5t#S256\":\"xxxxxxx\"}]}",
"client_id": "emco",
"client_secret": "xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx",
"trusted_certificate_authority": "-----BEGIN CERTIFICATE-----\r\nxxxxxxxx\r\n-----END CERTIFICATE-----\r\n",
"scopes": [],
"id_token": {
"preamble": "Bearer",
"header": "Authorization"
},
"access_token": {
"preamble": "Bearer",
"header": "Authorization"
}
}
}
]
}
]
} |
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