Open jingyuanliang opened 9 hours ago
This agent doesn't output anything to stdout by default, so it's good to do logging there (instead of stderr, see also https://github.com/kubernetes-sigs/descheduler/issues/676).
I've tried something similar to https://github.com/kubernetes-sigs/descheduler/pull/680, but it caused error messages to be repeated several times in stdout, and I don't know why.
$ bin/linux_amd64/ip-masq-agent --v=2 --logtostderr=false 2>/dev/null I1023 23:16:56.236933 814463 ip-masq-agent.go:148] ip-masq-agent version: v2.9.2-57-ga046124-dirty I1023 23:16:56.237033 814463 ip-masq-agent.go:151] FLAG: --add_dir_header="false" I1023 23:16:56.237040 814463 ip-masq-agent.go:151] FLAG: --alsologtostderr="false" I1023 23:16:56.237051 814463 ip-masq-agent.go:151] FLAG: --enable-ipv6="false" I1023 23:16:56.237054 814463 ip-masq-agent.go:151] FLAG: --log_backtrace_at=":0" I1023 23:16:56.237062 814463 ip-masq-agent.go:151] FLAG: --log_dir="" I1023 23:16:56.237066 814463 ip-masq-agent.go:151] FLAG: --log_file="" I1023 23:16:56.237070 814463 ip-masq-agent.go:151] FLAG: --log_file_max_size="1800" I1023 23:16:56.237076 814463 ip-masq-agent.go:151] FLAG: --logtostderr="false" I1023 23:16:56.237080 814463 ip-masq-agent.go:151] FLAG: --masq-chain="IP-MASQ-AGENT" I1023 23:16:56.237086 814463 ip-masq-agent.go:151] FLAG: --nomasq-all-reserved-ranges="false" I1023 23:16:56.237090 814463 ip-masq-agent.go:151] FLAG: --one_output="false" I1023 23:16:56.237101 814463 ip-masq-agent.go:151] FLAG: --random-fully="true" I1023 23:16:56.237105 814463 ip-masq-agent.go:151] FLAG: --skip_headers="false" I1023 23:16:56.237110 814463 ip-masq-agent.go:151] FLAG: --skip_log_headers="false" I1023 23:16:56.237115 814463 ip-masq-agent.go:151] FLAG: --stderrthreshold="2" I1023 23:16:56.237120 814463 ip-masq-agent.go:151] FLAG: --to-ports="" I1023 23:16:56.237128 814463 ip-masq-agent.go:151] FLAG: --v="2" I1023 23:16:56.237135 814463 ip-masq-agent.go:151] FLAG: --vmodule="" I1023 23:16:56.241322 814463 ip-masq-agent.go:245] Config file found at "/etc/config/ip-masq-agent" E1023 23:16:56.241385 814463 ip-masq-agent.go:183] Error syncing configuration: open /etc/config/ip-masq-agent: permission denied E1023 23:16:56.241385 814463 ip-masq-agent.go:183] Error syncing configuration: open /etc/config/ip-masq-agent: permission denied E1023 23:16:56.241385 814463 ip-masq-agent.go:183] Error syncing configuration: open /etc/config/ip-masq-agent: permission denied ^C $ bin/linux_amd64/ip-masq-agent --v=2 --logtostderr=false --log_file=/dev/stdout 2>/dev/null I1023 23:16:51.053114 814390 ip-masq-agent.go:148] ip-masq-agent version: v2.9.2-57-ga046124-dirty I1023 23:16:51.053212 814390 ip-masq-agent.go:151] FLAG: --add_dir_header="false" I1023 23:16:51.053218 814390 ip-masq-agent.go:151] FLAG: --alsologtostderr="false" I1023 23:16:51.053223 814390 ip-masq-agent.go:151] FLAG: --enable-ipv6="false" I1023 23:16:51.053227 814390 ip-masq-agent.go:151] FLAG: --log_backtrace_at=":0" I1023 23:16:51.053241 814390 ip-masq-agent.go:151] FLAG: --log_dir="" I1023 23:16:51.053250 814390 ip-masq-agent.go:151] FLAG: --log_file="/dev/stdout" I1023 23:16:51.053254 814390 ip-masq-agent.go:151] FLAG: --log_file_max_size="1800" I1023 23:16:51.053258 814390 ip-masq-agent.go:151] FLAG: --logtostderr="false" I1023 23:16:51.053262 814390 ip-masq-agent.go:151] FLAG: --masq-chain="IP-MASQ-AGENT" I1023 23:16:51.053266 814390 ip-masq-agent.go:151] FLAG: --nomasq-all-reserved-ranges="false" I1023 23:16:51.053272 814390 ip-masq-agent.go:151] FLAG: --one_output="false" I1023 23:16:51.053276 814390 ip-masq-agent.go:151] FLAG: --random-fully="true" I1023 23:16:51.053280 814390 ip-masq-agent.go:151] FLAG: --skip_headers="false" I1023 23:16:51.053286 814390 ip-masq-agent.go:151] FLAG: --skip_log_headers="false" I1023 23:16:51.053291 814390 ip-masq-agent.go:151] FLAG: --stderrthreshold="2" I1023 23:16:51.053300 814390 ip-masq-agent.go:151] FLAG: --to-ports="" I1023 23:16:51.053320 814390 ip-masq-agent.go:151] FLAG: --v="2" I1023 23:16:51.053327 814390 ip-masq-agent.go:151] FLAG: --vmodule="" I1023 23:16:51.057615 814390 ip-masq-agent.go:245] Config file found at "/etc/config/ip-masq-agent" E1023 23:16:51.057654 814390 ip-masq-agent.go:183] Error syncing configuration: open /etc/config/ip-masq-agent: permission denied ^C
In the meantime, users can manually set output to stdout and it doesn't cause the same issue, as shown above.
This agent doesn't output anything to stdout by default, so it's good to do logging there (instead of stderr, see also https://github.com/kubernetes-sigs/descheduler/issues/676).
I've tried something similar to https://github.com/kubernetes-sigs/descheduler/pull/680, but it caused error messages to be repeated several times in stdout, and I don't know why.
In the meantime, users can manually set output to stdout and it doesn't cause the same issue, as shown above.