ingress-nginx debug

[root@centos7 nginx_ingress]# ps -elf | grep ingress-nginx-controller
4 S 101      101984 101964  0  80   0 -     8 SyS_rt 02:36 ?        00:00:00 /usr/bin/dumb-init -- /nginx-ingress-controller --publish-service=ingress-nginx/ingress-nginx-controller --election-id=ingress-controller-leader --ingress-class=nginx --configmap=ingress-nginx/ingress-nginx-controller --validating-webhook=:8443 --validating-webhook-certificate=/usr/local/certificates/cert --validating-webhook-key=/usr/local/certificates/key
4 S 101      102063 101984  2  80   0 - 11642 futex_ 02:36 ?        00:00:03 /nginx-ingress-controller --publish-service=ingress-nginx/ingress-nginx-controller --election-id=ingress-controller-leader --ingress-class=nginx --configmap=ingress-nginx/ingress-nginx-controller --validating-webhook=:8443 --validating-webhook-certificate=/usr/local/certificates/cert --validating-webhook-key=/usr/local/certificates/key
0 S root     110485  80702  0  80   0 -  1730 pipe_w 02:38 pts/0    00:00:00 grep --color=auto ingress-nginx-controller
[root@centos7 nginx_ingress]# dlv attach 102063
-bash: dlv: command not found
[root@centos7 nginx_ingress]# source ~/go.source 
[root@centos7 nginx_ingress]# dlv attach 102063
could not attach to pid 102063: could not open debug info
[root@centos7 nginx_ingress]# 

更改编译选项

 build/build.sh 

去掉 -w -s 选项

#-trimpath -ldflags="-buildid= -w -s 
go build 
  -trimpath -ldflags="
    -X ${PKG}/version.RELEASE=${TAG} 
    -X ${PKG}/version.COMMIT=${COMMIT_SHA} 
    -X ${PKG}/version.REPO=${REPO_INFO}" 
  -o "rootfs/bin/${ARCH}/nginx-ingress-controller" "${PKG}/cmd/nginx"

root@ubuntu:~/nginx_ingress/ingress-nginx#  env DOCKER_IN_DOCKER_ENABLED="true" make build
root@ubuntu:~/nginx_ingress/ingress-nginx# ls rootfs/bin/arm64/ -al
total 60312
drwxr-xr-x 2 root root     4096 Aug  5 15:06 .
drwxr-xr-x 3 root root     4096 Aug  4 20:43 ..
-rwxr-xr-x 1 root root  6946816 Aug  5 15:06 dbg
-rwxr-xr-x 1 root root 50133530 Aug  5 15:06 nginx-ingress-controller
-rwxr-xr-x 1 root root  5111808 Aug  5 15:06 wait-shutdown
root@ubuntu:~/nginx_ingress/ingress-nginx# 

[root@centos7 nginx_ingress]# ps -elf | grep ingress
4 S 101       40998  40960  0  80   0 -     8 SyS_rt 03:14 ?        00:00:00 /usr/bin/dumb-init -- /nginx-ingress-controller --publish-service=ingress-nginx/ingress-nginx-controller --election-id=ingress-controller-leader --ingress-class=nginx --configmap=ingress-nginx/ingress-nginx-controller --validating-webhook=:8443 --validating-webhook-certificate=/usr/local/certificates/cert --validating-webhook-key=/usr/local/certificates/key
4 S 101       41105  40998 17  80   0 - 11654 futex_ 03:14 ?        00:00:03 /nginx-ingress-controller --publish-service=ingress-nginx/ingress-nginx-controller --election-id=ingress-controller-leader --ingress-class=nginx --configmap=ingress-nginx/ingress-nginx-controller --validating-webhook=:8443 --validating-webhook-certificate=/usr/local/certificates/cert --validating-webhook-key=/usr/local/certificates/key
0 S root      45941  80702  0  80   0 -  1730 pipe_w 03:15 pts/0    00:00:00 grep --color=auto ingress
[root@centos7 nginx_ingress]# dlv attach 41105
Type 'help' for list of commands.
(dlv) goroutines
  Goroutine 1 - User: k8s.io/ingress-nginx/cmd/nginx/main.go:186 main.handleSigterm (0xfcf354) [chan receive 450915h28m30.524006049s]
  Goroutine 2 - User: runtime/proc.go:305 runtime.gopark (0x44da0) [force gc (idle) 450915h28m30.8665417s]
  Goroutine 3 - User: runtime/proc.go:305 runtime.gopark (0x44da0) [GC sweep wait]
  Goroutine 4 - User: runtime/proc.go:305 runtime.gopark (0x44da0) [GC scavenge wait]
  Goroutine 5 - User: runtime/proc.go:305 runtime.gopark (0x44da0) [finalizer wait 450915h28m28.156971677s]
  Goroutine 6 - User: k8s.io/klog/v2@v2.4.0/klog.go:1169 k8s.io/klog/v2.(*loggingT).flushDaemon (0x25eb50) [chan receive]
  Goroutine 7 - User: runtime/proc.go:305 runtime.gopark (0x44da0) [GC worker (idle)]
  Goroutine 8 - User: runtime/proc.go:305 runtime.gopark (0x44da0) [GC worker (idle)]
  Goroutine 9 - User: runtime/proc.go:305 runtime.gopark (0x44da0) [GC worker (idle)]
  Goroutine 10 - User: runtime/proc.go:305 runtime.gopark (0x44da0) [GC worker (idle)]
  Goroutine 11 - User: runtime/proc.go:305 runtime.gopark (0x44da0) [GC worker (idle)]
  Goroutine 12 - User: runtime/proc.go:305 runtime.gopark (0x44da0) [GC worker (idle)]
  Goroutine 13 - User: runtime/proc.go:305 runtime.gopark (0x44da0) [GC worker (idle)]
  Goroutine 14 - User: runtime/proc.go:305 runtime.gopark (0x44da0) [GC worker (idle)]
  Goroutine 15 - User: runtime/proc.go:305 runtime.gopark (0x44da0) [GC worker (idle)]
  Goroutine 16 - User: runtime/proc.go:305 runtime.gopark (0x44da0) [GC worker (idle)]
  Goroutine 17 - User: runtime/proc.go:305 runtime.gopark (0x44da0) [GC worker (idle)]
  Goroutine 18 - User: runtime/proc.go:305 runtime.gopark (0x44da0) [GC worker (idle)]
  Goroutine 19 - User: runtime/proc.go:305 runtime.gopark (0x44da0) [GC worker (idle)]
  Goroutine 20 - User: runtime/proc.go:305 runtime.gopark (0x44da0) [GC worker (idle)]
  Goroutine 21 - User: runtime/proc.go:305 runtime.gopark (0x44da0) [GC worker (idle)]
  Goroutine 22 - User: runtime/proc.go:305 runtime.gopark (0x44da0) [GC worker (idle)]
  Goroutine 23 - User: runtime/proc.go:305 runtime.gopark (0x44da0) [GC worker (idle)]
  Goroutine 24 - User: runtime/proc.go:305 runtime.gopark (0x44da0) [GC worker (idle)]