func TestTagger(t *testing.T) {
mtime.NowForce(time.Now())
defer mtime.NowReset()
oldProcessTree := docker.NewProcessTreeStub
defer func() { docker.NewProcessTreeStub = oldProcessTree }()
docker.NewProcessTreeStub = func(_ process.Walker) (process.Tree, error) {
return &mockProcessTree{map[int]int{3: 2}}, nil
}
var (
pid1NodeID = report.MakeProcessNodeID("somehost.com", "2")
pid2NodeID = report.MakeProcessNodeID("somehost.com", "3")
)
input := report.MakeReport()
input.Process.AddNode(report.MakeNodeWith(pid1NodeID, map[string]string{process.PID: "2"}))
input.Process.AddNode(report.MakeNodeWith(pid2NodeID, map[string]string{process.PID: "3"}))
have, err := docker.NewTagger(mockRegistryInstance, nil).Tag(input)
if err != nil {
t.Errorf("%v", err)
}
// Processes should be tagged with their container ID, and parents
for _, nodeID := range []string{pid1NodeID, pid2NodeID} {
node, ok := have.Process.Nodes[nodeID]
if !ok {
t.Errorf("Expected process node %s, but not found", nodeID)
}
// node should have the container id added
if have, ok := node.Latest.Lookup(docker.ContainerID); !ok || have != "ping" {
t.Errorf("Expected process node %s to have container id %q, got %q", nodeID, "ping", have)
}
// node should have the container as a parent
if have, ok := node.Parents.Lookup(report.Container); !ok || !have.Contains(report.MakeContainerNodeID("ping")) {
t.Errorf("Expected process node %s to have container %q as a parent, got %q", nodeID, "ping", have)
}
// node should have the container image as a parent
if have, ok := node.Parents.Lookup(report.ContainerImage); !ok || !have.Contains(report.MakeContainerImageNodeID("baz")) {
t.Errorf("Expected process node %s to have container image %q as a parent, got %q", nodeID, "baz", have)
}
}
}
// MapEndpoint2Process maps endpoint Nodes to process
// Nodes.
//
// If this function is given a pseudo node, then it will just return it;
// Pseudo nodes will never have pids in them, and therefore will never
// be able to be turned into a Process node.
//
// Otherwise, this function will produce a node with the correct ID
// format for a process, but without any Major or Minor labels.
// It does not have enough info to do that, and the resulting graph
// must be merged with a process graph to get that info.
func MapEndpoint2Process(n report.Node, local report.Networks) report.Nodes {
// Nodes without a hostid are treated as pseudo nodes
if _, ok := n.Latest.Lookup(report.HostNodeID); !ok {
return MapEndpoint2Pseudo(n, local)
}
pid, timestamp, ok := n.Latest.LookupEntry(process.PID)
if !ok {
return report.Nodes{}
}
id := report.MakeProcessNodeID(report.ExtractHostID(n), pid)
node := NewDerivedNode(id, n).WithTopology(report.Process)
node.Latest = node.Latest.Set(process.PID, timestamp, pid)
node.Counters = node.Counters.Add(n.Topology, 1)
return report.Nodes{id: node}
}
func (r *Reporter) processTopology() (report.Topology, error) {
t := report.MakeTopology().
WithMetadataTemplates(MetadataTemplates).
WithMetricTemplates(MetricTemplates)
now := mtime.Now()
deltaTotal, maxCPU, err := r.jiffies()
if err != nil {
return t, err
}
err = r.walker.Walk(func(p, prev Process) {
pidstr := strconv.Itoa(p.PID)
nodeID := report.MakeProcessNodeID(r.scope, pidstr)
node := report.MakeNode(nodeID)
for _, tuple := range []struct{ key, value string }{
{PID, pidstr},
{Name, p.Name},
{Cmdline, p.Cmdline},
{Threads, strconv.Itoa(p.Threads)},
} {
if tuple.value != "" {
node = node.WithLatests(map[string]string{tuple.key: tuple.value})
}
}
if p.PPID > 0 {
node = node.WithLatests(map[string]string{PPID: strconv.Itoa(p.PPID)})
}
if deltaTotal > 0 {
cpuUsage := float64(p.Jiffies-prev.Jiffies) / float64(deltaTotal) * 100.
node = node.WithMetric(CPUUsage, report.MakeMetric().Add(now, cpuUsage).WithMax(maxCPU))
}
node = node.WithMetric(MemoryUsage, report.MakeMetric().Add(now, float64(p.RSSBytes)).WithMax(float64(p.RSSBytesLimit)))
node = node.WithMetric(OpenFilesCount, report.MakeMetric().Add(now, float64(p.OpenFilesCount)).WithMax(float64(p.OpenFilesLimit)))
t.AddNode(node)
})
return t, err
}
True = "true" ClientHostNodeID = report.MakeHostNodeID(ClientHostID) ServerHostNodeID = report.MakeHostNodeID(ServerHostID) Client54001NodeID = report.MakeEndpointNodeID(ClientHostID, ClientIP, ClientPort54001) // curl (1) Client54002NodeID = report.MakeEndpointNodeID(ClientHostID, ClientIP, ClientPort54002) // curl (2) Server80NodeID = report.MakeEndpointNodeID(ServerHostID, ServerIP, ServerPort) // apache UnknownClient1NodeID = report.MakeEndpointNodeID(ServerHostID, UnknownClient1IP, UnknownClient1Port) // we want to ensure two unknown clients, connnected UnknownClient2NodeID = report.MakeEndpointNodeID(ServerHostID, UnknownClient2IP, UnknownClient2Port) // to the same server, are deduped. UnknownClient3NodeID = report.MakeEndpointNodeID(ServerHostID, UnknownClient3IP, UnknownClient3Port) // Check this one isn't deduped RandomClientNodeID = report.MakeEndpointNodeID(ServerHostID, RandomClientIP, RandomClientPort) // this should become an internet node NonContainerNodeID = report.MakeEndpointNodeID(ServerHostID, ServerIP, NonContainerClientPort) GoogleEndpointNodeID = report.MakeEndpointNodeID(ServerHostID, GoogleIP, GooglePort) ClientProcess1NodeID = report.MakeProcessNodeID(ClientHostID, Client1PID) ClientProcess2NodeID = report.MakeProcessNodeID(ClientHostID, Client2PID) ServerProcessNodeID = report.MakeProcessNodeID(ServerHostID, ServerPID) NonContainerProcessNodeID = report.MakeProcessNodeID(ServerHostID, NonContainerPID) ClientContainerID = "a1b2c3d4e5" ClientContainerName = "client" ServerContainerID = "5e4d3c2b1a" ServerContainerName = "task-name-5-server-aceb93e2f2b797caba01" ClientContainerNodeID = report.MakeContainerNodeID(ClientContainerID) ServerContainerNodeID = report.MakeContainerNodeID(ServerContainerID) ClientContainerHostname = ClientContainerName + ".hostname.com" ServerContainerHostname = ServerContainerName + ".hostname.com" ClientContainerImageID = "imageid123"
func TestReporter(t *testing.T) {
processes := []process.Process{
{PID: 1, PPID: 0, Name: "init"},
{PID: 2, PPID: 1, Name: "bash"},
{PID: 3, PPID: 1, Name: "apache", Threads: 2},
{PID: 4, PPID: 2, Name: "ping", Cmdline: "ping foo.bar.local"},
{PID: 5, PPID: 1, Cmdline: "tail -f /var/log/syslog"},
}
walker := &mockWalker{processes: processes}
getDeltaTotalJiffies := func() (uint64, float64, error) { return 0, 0., nil }
now := time.Now()
mtime.NowForce(now)
defer mtime.NowReset()
rpt, err := process.NewReporter(walker, "", getDeltaTotalJiffies).Report()
if err != nil {
t.Error(err)
}
// It reports the init process
node, ok := rpt.Process.Nodes[report.MakeProcessNodeID("", "1")]
if !ok {
t.Errorf("Expected report to include the pid 1 init")
}
if name, ok := node.Latest.Lookup(process.Name); !ok || name != processes[0].Name {
t.Errorf("Expected %q got %q", processes[0].Name, name)
}
// It reports plain processes (with parent pid, and metrics)
node, ok = rpt.Process.Nodes[report.MakeProcessNodeID("", "2")]
if !ok {
t.Errorf("Expected report to include the pid 2 bash")
}
if name, ok := node.Latest.Lookup(process.Name); !ok || name != processes[1].Name {
t.Errorf("Expected %q got %q", processes[1].Name, name)
}
if ppid, ok := node.Latest.Lookup(process.PPID); !ok || ppid != fmt.Sprint(processes[1].PPID) {
t.Errorf("Expected %d got %q", processes[1].PPID, ppid)
}
if memoryUsage, ok := node.Metrics[process.MemoryUsage]; !ok {
t.Errorf("Expected memory usage metric, but not found")
} else if sample := memoryUsage.LastSample(); sample == nil {
t.Errorf("Expected memory usage metric to have a sample, but there were none")
} else if sample.Value != 0. {
t.Errorf("Expected memory usage metric sample %f, got %f", 0., sample.Value)
}
// It reports thread-counts
node, ok = rpt.Process.Nodes[report.MakeProcessNodeID("", "3")]
if !ok {
t.Errorf("Expected report to include the pid 3 apache")
}
if threads, ok := node.Latest.Lookup(process.Threads); !ok || threads != fmt.Sprint(processes[2].Threads) {
t.Errorf("Expected %d got %q", processes[2].Threads, threads)
}
// It reports the Cmdline
node, ok = rpt.Process.Nodes[report.MakeProcessNodeID("", "4")]
if !ok {
t.Errorf("Expected report to include the pid 4 ping")
}
if cmdline, ok := node.Latest.Lookup(process.Cmdline); !ok || cmdline != fmt.Sprint(processes[3].Cmdline) {
t.Errorf("Expected %q got %q", processes[3].Cmdline, cmdline)
}
// It reports processes without a Name
node, ok = rpt.Process.Nodes[report.MakeProcessNodeID("", "5")]
if !ok {
t.Errorf("Expected report to include the pid 5 tail")
}
if name, ok := node.Latest.Lookup(process.Name); ok {
t.Errorf("Expected no name, but got %q", name)
}
if cmdline, ok := node.Latest.Lookup(process.Cmdline); !ok || cmdline != fmt.Sprint(processes[4].Cmdline) {
t.Errorf("Expected %q got %q", processes[4].Cmdline, cmdline)
}
}
