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Note: during Istanbul, service-to-service (workload-to-workload) authorization will be configured first (high priority). Then, OOM will visit end-user-to-service (workload) authorization.

• The authorization policy enforces access control to the inbound traffic in the server side Envoy proxy. Each Envoy proxy runs an authorization engine that authorizes requests at runtime. 
• When a request comes to the proxy, the authorization engine evaluates the request context against the current authorization policies, and returns the authorization result, either ALLOW or DENY.
• Istio authorization policies are configured using .yaml files.

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<source: https://istio.io/latest/docs/concepts/security/#authentication-policies>

Authorization policies support ALLOW, DENY and CUSTOM actions. The following digram depicts the policy precedence. 

• CUSTOM → DENY → ALLOW
• in ONAP Istanbul, DENY and ALLOW will be configured first, as coarse-grained authorization. Then, CUSTOM action would be considered for fine-grained authorization in the future (as time allows).

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<source: https://istio.io/latest/docs/concepts/security/#authentication-policies>

Example,

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<source: https://istio.io/latest/docs/concepts/security/#authentication-policies>

Role-Based Access Control

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• ONAP supports open-source- and standard-based Logging architecture.
• Once all ONAP components push their logs into STDOUT/STDERR, any standard log pipe can work.
  • Allowing the logging component stack is realized by choices of vendors
  • ONAP provides a reference implementation/choice
  ONAP logs will be exported to a different and centralized location for security, persistent
  • Note: e.g., for apps uses log4j/slf4j properties file, the stdout and stderr redirection can be configured

    • log4j.appender.stdout = org.apache.log4j.ConsoleAppender
      log4j.appender.stdout.Threshold = TRACE
      log4j.appender.stdout.Target   = System.out

      log4j.appender.stderr = org.apache.log4j.ConsoleAppender
      log4j.appender.stderr.Threshold = WARN
      log4j.appender.stderr.Target   = System.err
      
      

    • <log4j:configuration>
          <appender name="stderr" class="org.apache.log4j.ConsoleAppender">
              <param name="threshold" value="warn" />
              <param name="target" value="System.err"/>
              <layout class="org.apache.log4j.PatternLayout">
                  <param name="ConversionPattern" value="%-5p %d [%t][%F:%L] : %m%n" />
              </layout>
          </appender>
          <appender name="stdout" class="org.apache.log4j.ConsoleAppender">
              <param name="threshold" value="debug" />
              <param name="target" value="System.out"/>
              <layout class="org.apache.log4j.PatternLayout">
                  <param name="ConversionPattern" value="%-5p %d [%t][%F:%L] : %m%n" />
              </layout>
              <filter class="org.apache.log4j.varia.LevelRangeFilter">
                  <param name="LevelMin" value="debug" />
                  <param name="LevelMax" value="info" />
              </filter>
          </appender>
          <root>
              <priority value="debug"></priority>
              <appender-ref ref="stderr" />
              <appender-ref ref="stdout" />
          </root>
      </log4j:configuration>

• ONAP logs will be exported to a different and centralized location for security, persistent and aggregation reasons
  • Log collector sends logs to the aggregator in a different container
  • Aggregator sends logs to the centralized database in a different container
• Logging Functional Blocks:
  • Collector (one per K8S node)
  • Aggregator (few per K8S cluster)
  • Database (one per K8S cluster)
  • Visualization (one per K8S cluster)
• ONAP reference implementation choice:
  • EFK: Elastic Search, Fluentd, Fluentbit, Kibana
  • LFG: Loki, Grafana, Fluentd / Flentbit
• ONAP logging conforms to SECCOM Container Logging requirements
  • Event Types
  • Log Data
  • Log Management

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Cluster-level Logging Architecture (A) - ONAP Reference implementation uses this option

• Use a node-level logging agent (e.g., DaemonSet) that runs on every node
  • the logging agent has access to a directory with log files from all of the application containers on that node
  • one agent per node is used
• Include a dedicated sidecar container for logging in an application pod
• A container engine handles and redirects any output generated to a containerized application's stdout and stderr.
• Push logs directly to a backend from within an application
• Note:
  1. node-level logging creates only one agent per node and does not require any changes to the applications running on the node
  2. Prerequisite: Application containers write STDOUT and STDERR
  3. A node-level agent collects these logs and forwards them for aggregation

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Note: during Istanbul, service-to-service (workload-to-workload) authorization will be configured first (high priority). Then, OOM will visit end-user-to-service (workload) authorization.

• The authorization policy enforces access control to the inbound traffic in the server side Envoy proxy. Each Envoy proxy runs an authorization engine that authorizes requests at runtime. 
• When a request comes to the proxy, the authorization engine evaluates the request context against the current authorization policies, and returns the authorization result, either ALLOW or DENY.
• Istio authorization policies are configured using .yaml files.

Image Modified

<source: https://istio.io/latest/docs/concepts/security/#authentication-policies>

Authorization policies support ALLOW, DENY and CUSTOM actions. The following digram depicts the policy precedence. 

• CUSTOM → DENY → ALLOW
• in ONAP Istanbul, DENY and ALLOW will be configured first, as coarse-grained authorization. Then, CUSTOM action would be considered for fine-grained authorization in the future (as time allows).

Image Modified

<source: https://istio.io/latest/docs/concepts/security/#authentication-policies>

Example,

Image Modified

<source: https://istio.io/latest/docs/concepts/security/#authentication-policies>

Role-Based Access Control

...