appender

Documentation

Index

• Constants
• type Appender
• type DeadNodeAppender
  • func (a DeadNodeAppender) AppendGraph(trafficMap graph.TrafficMap, _ string)
• type IstioAppender
  • func (a IstioAppender) AppendGraph(trafficMap graph.TrafficMap, namespace string)
• type ResponseTimeAppender
  • func (a ResponseTimeAppender) AppendGraph(trafficMap graph.TrafficMap, namespace string)
• type SecurityPolicyAppender
  • func (a SecurityPolicyAppender) AppendGraph(trafficMap graph.TrafficMap, namespace string)
• type SidecarsCheckAppender
  • func (a SidecarsCheckAppender) AppendGraph(trafficMap graph.TrafficMap, _ string)
• type UnusedNodeAppender
  • func (a UnusedNodeAppender) AppendGraph(trafficMap graph.TrafficMap, namespace string)

Constants

const (
	DefaultQuantile = 0.95 // 95th percentile
)

Types

type Appender

type Appender interface {
	// AppendGraph performs the appender work on the provided traffic map. The map
	// may be initially empty. An appender is allowed to add or remove map entries.
	AppendGraph(trafficMap graph.TrafficMap, namespace string)
}

Appender is implemented by any code offering to append a service graph with supplemental information. On error the appender should panic and it will be handled as an error response.

type DeadNodeAppender

type DeadNodeAppender struct {
	// contains filtered or unexported fields
}

DeadNodeAppender is responsible for removing from the graph unwanted nodes:

• nodes for which there is no traffic reported and the related schema is missing (presumably removed from K8S). (kiali-621)
• service nodes for which there is no incoming error traffic and no outgoing edges (kiali-1326). Kiali-1526 adds an exclusion to this rule. Egress is a special terminal service node and we want to show it even if it has no incoming traffic for the time period.

func (DeadNodeAppender) AppendGraph

func (a DeadNodeAppender) AppendGraph(trafficMap graph.TrafficMap, _ string)

AppendGraph implements Appender

type IstioAppender

type IstioAppender struct{}

func (IstioAppender) AppendGraph

func (a IstioAppender) AppendGraph(trafficMap graph.TrafficMap, namespace string)

AppendGraph implements Appender

type ResponseTimeAppender

type ResponseTimeAppender struct {
	Duration     time.Duration
	GraphType    string
	IncludeIstio bool
	Quantile     float64
	QueryTime    int64 // unix time in seconds
}

ResponseTimeAppender is responsible for adding responseTime information to the graph. ResponseTime is represented as a percentile value. The default is 95th percentile, which means that 95% of requests executed in no more than the resulting milliseconds.

func (ResponseTimeAppender) AppendGraph

func (a ResponseTimeAppender) AppendGraph(trafficMap graph.TrafficMap, namespace string)

AppendGraph implements Appender

type SecurityPolicyAppender

type SecurityPolicyAppender struct {
	Duration     time.Duration
	GraphType    string
	IncludeIstio bool
	QueryTime    int64 // unix time in seconds
}

SecurityPolicyAppender is responsible for adding securityPolicy information to the graph. The appender currently reports only mutual_tls security although is written in a generic way.

func (SecurityPolicyAppender) AppendGraph

func (a SecurityPolicyAppender) AppendGraph(trafficMap graph.TrafficMap, namespace string)

AppendGraph implements Appender

type SidecarsCheckAppender

type SidecarsCheckAppender struct {
	AccessibleNamespaces map[string]bool
}

func (SidecarsCheckAppender) AppendGraph

func (a SidecarsCheckAppender) AppendGraph(trafficMap graph.TrafficMap, _ string)

AppendGraph implements Appender

type UnusedNodeAppender

type UnusedNodeAppender struct {
	GraphType   string // This appender does not operate on service graphs because it adds workload nodes.
	IsNodeGraph bool   // This appender does not operate on node detail graphs because we want to focus on the specific node.
}

func (UnusedNodeAppender) AppendGraph

func (a UnusedNodeAppender) AppendGraph(trafficMap graph.TrafficMap, namespace string)

AppendGraph implements Appender