所以我想调试一个在 k8s 集群上运行的 golang 应用程序,但是当我想将 delve 附加到该应用程序时收到错误消息。 “无法附加到 pid XXX:无法打开调试信息”
在 k8s 部署中,我添加了所需的权限:
securityContext:
capabilities:
add:
- SYS_PTRACE
privileged: true
runAsUser: 0
allowPrivilegeEscalation: true
我使用所需的 gcflags“all=-N -l”编译了我的应用程序
go build -mod vendor -gcflags“all=-N -l”--ldflags -w -s -o app
我用以下命令启动 Pod:
dlv --listen=:40000 --headless=true --api-version=2 --accept-multiclient exec/app
我验证了我运行了正确的容器镜像,它与我推送的 SHA 哈希值相同。 我验证了它是正确的二进制文件,哈希值也在这里匹配。
我已经设置:
echo 0 > /proc/sys/kernel/yama/ptrace_scope
cat /proc/sys/kernel/yama/ptrace_scope
0
这是二进制文件的 readelf -S app
输出。
>readelf -S app
There are 27 section headers, starting at offset 0x270:
Section Headers:
[Nr] Name Type Address Offset
Size EntSize Flags Link Info Align
[ 0] NULL 0000000000000000 00000000
0000000000000000 0000000000000000 0 0 0
[ 1] .text PROGBITS 0000000000401000 00001000
000000000223c47d 0000000000000000 AX 0 0 16
[ 2] .plt PROGBITS 000000000263d480 0223d480
0000000000000290 0000000000000010 AX 0 0 16
[ 3] .rodata PROGBITS 000000000263e000 0223e000
0000000000cd4919 0000000000000000 A 0 0 32
[ 4] .rela RELA 0000000003312920 02f12920
0000000000000018 0000000000000018 A 11 0 8
[ 5] .rela.plt RELA 0000000003312938 02f12938
00000000000003c0 0000000000000018 A 11 2 8
[ 6] .gnu.version_r VERNEED 0000000003312d00 02f12d00
0000000000000050 0000000000000000 A 10 2 8
[ 7] .gnu.version VERSYM 0000000003312d60 02f12d60
000000000000005a 0000000000000002 A 11 0 2
[ 8] .hash HASH 0000000003312dc0 02f12dc0
00000000000000d8 0000000000000004 A 11 0 8
[ 9] .shstrtab STRTAB 0000000000000000 02f12ea0
0000000000000111 0000000000000000 0 0 1
[10] .dynstr STRTAB 0000000003312fc0 02f12fc0
0000000000000268 0000000000000000 A 0 0 1
[11] .dynsym DYNSYM 0000000003313240 02f13240
0000000000000438 0000000000000018 A 10 1 8
[12] .typelink PROGBITS 0000000003313680 02f13680
000000000001064c 0000000000000000 A 0 0 32
[13] .itablink PROGBITS 0000000003323cd0 02f23cd0
0000000000006a60 0000000000000000 A 0 0 8
[14] .gosymtab PROGBITS 000000000332a730 02f2a730
0000000000000000 0000000000000000 A 0 0 1
[15] .gopclntab PROGBITS 000000000332a740 02f2a740
000000000113d450 0000000000000000 A 0 0 32
[16] .go.buildinfo PROGBITS 0000000004468000 04068000
0000000000000020 0000000000000000 WA 0 0 16
[17] .dynamic DYNAMIC 0000000004468020 04068020
0000000000000130 0000000000000010 WA 10 0 8
[18] .got.plt PROGBITS 0000000004468160 04068160
0000000000000158 0000000000000008 WA 0 0 8
[19] .got PROGBITS 00000000044682b8 040682b8
0000000000000008 0000000000000008 WA 0 0 8
[20] .noptrdata PROGBITS 00000000044682c0 040682c0
00000000000885c0 0000000000000000 WA 0 0 32
[21] .data PROGBITS 00000000044f0880 040f0880
000000000001f630 0000000000000000 WA 0 0 32
[22] .bss NOBITS 000000000450fec0 0410fec0
000000000003ba90 0000000000000000 WA 0 0 32
[23] .noptrbss NOBITS 000000000454b960 0414b960
0000000000004708 0000000000000000 WA 0 0 32
[24] .tbss NOBITS 0000000000000000 00000000
0000000000000008 0000000000000000 WAT 0 0 8
[25] .interp PROGBITS 0000000000400fe4 00000fe4
000000000000001c 0000000000000000 A 0 0 1
[26] .note.go.buildid NOTE 0000000000400f80 00000f80
0000000000000064 0000000000000000 A 0 0 4
Key to Flags:
W (write), A (alloc), X (execute), M (merge), S (strings), I (info),
L (link order), O (extra OS processing required), G (group), T (TLS),
C (compressed), x (unknown), o (OS specific), E (exclude),
l (large), p (processor specific)
我不知道如何解决。
最佳答案
您将 -s -w
作为标志传递给链接器。
-s: Omit the symbol table and debug information.
-w: Omit the DWARF symbol table.
简而言之,您的构建命令会删除调试器调试所需的信息。
如果删除 -ldflags
(或仅删除 -s -w
),它应该按预期工作。
关于go - 由于错误 : could not attach to pid XXX: could not open debug info,无法调试 golang 应用程序 delve,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/66405077/