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Add support to auto discover envoy processes (#459)

Browse Source 
* discover envoy pids using cluster ips

* add istio flag to cli + rename mtls flag to istio

* add istio.md to docs

* Fixing typos

* Fix minor typos and grammer in docs

Co-authored-by: Nimrod Gilboa Markevich <nimrod@up9.com>
This commit is contained in:
David Levanon
2021-11-21 15:45:07 +02:00
committed by GitHub
parent b77ea63f42
commit 6caa94f08f
15 changed files with 248 additions and 53 deletions
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14
tap/tcp_stream_factory.go
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@@ -24,6 +24,7 @@ type tcpStreamFactory struct {
Emitter api.Emitter
streamsMap *tcpStreamMap
ownIps []string
opts *TapOpts
}
type tcpStreamWrapper struct {
@@ -31,7 +32,7 @@ type tcpStreamWrapper struct {
createdAt time.Time
}
func NewTcpStreamFactory(emitter api.Emitter, streamsMap *tcpStreamMap) *tcpStreamFactory {
func NewTcpStreamFactory(emitter api.Emitter, streamsMap *tcpStreamMap, opts *TapOpts) *tcpStreamFactory {
var ownIps []string
if localhostIPs, err := getLocalhostIPs(); err != nil {
@@ -47,6 +48,7 @@ func NewTcpStreamFactory(emitter api.Emitter, streamsMap *tcpStreamMap) *tcpStre
Emitter: emitter,
streamsMap: streamsMap,
ownIps: ownIps,
opts: opts,
}
}
@@ -139,17 +141,17 @@ func (factory *tcpStreamFactory) WaitGoRoutines() {
}
func (factory *tcpStreamFactory) getStreamProps(srcIP string, srcPort string, dstIP string, dstPort string) *streamProps {
if hostMode {
if inArrayString(gSettings.filterAuthorities, fmt.Sprintf("%s:%s", dstIP, dstPort)) {
if factory.opts.HostMode {
if inArrayString(factory.opts.FilterAuthorities, fmt.Sprintf("%s:%s", dstIP, dstPort)) {
logger.Log.Debugf("getStreamProps %s", fmt.Sprintf("+ host1 %s:%s", dstIP, dstPort))
return &streamProps{isTapTarget: true, isOutgoing: false}
} else if inArrayString(gSettings.filterAuthorities, dstIP) {
} else if inArrayString(factory.opts.FilterAuthorities, dstIP) {
logger.Log.Debugf("getStreamProps %s", fmt.Sprintf("+ host2 %s", dstIP))
return &streamProps{isTapTarget: true, isOutgoing: false}
} else if inArrayString(gSettings.filterAuthorities, fmt.Sprintf("%s:%s", srcIP, srcPort)) {
} else if inArrayString(factory.opts.FilterAuthorities, fmt.Sprintf("%s:%s", srcIP, srcPort)) {
logger.Log.Debugf("getStreamProps %s", fmt.Sprintf("+ host3 %s:%s", srcIP, srcPort))
return &streamProps{isTapTarget: true, isOutgoing: true}
} else if inArrayString(gSettings.filterAuthorities, srcIP) {
} else if inArrayString(factory.opts.FilterAuthorities, srcIP) {
logger.Log.Debugf("getStreamProps %s", fmt.Sprintf("+ host4 %s", srcIP))
return &streamProps{isTapTarget: true, isOutgoing: true}
}