问题描述
目前,我们将所有应用程序日志从多个容器重定向到stdout,并通过主机中的rsyslog收集/ var / log / message到ELK堆栈。
Currently we are redirecting all application logs to stdout from multiple containers and collect /var/log/message via rsyslog in host to ELK stack.
所有docker容器日志显示为docker / xxxxxxxx,我们无法确定哪个应用程序是此日志,无论如何,我们可以轻松地将应用程序与多个容器日志区分开,从docker stdout ?
All docker container logs shows as docker/xxxxxxxx, we can't tell which application is this log for, anyway we can easily differentiate applications from multiple container logs from docker stdout?
推荐答案
(操作系统X的说明,但应在Linux中工作)
(Instructions for OS X but should work in Linux)
似乎没有办法使用docker命令执行此操作,但是在bash中,您可以同时运行多个命令,并且使用 sed
可以前缀与您的容器名称。
There doesn't appear to be a way to do this with a docker command, however in bash you can run multiple commands at the same time, and with sed
you can prefix with your container name.
docker logs -f --tail=30 container1 | sed -e 's/^/[-- container1 --]/' &
docker logs -f --tail=30 container2 | sed -e 's/^/[-- container2 --]/' &
同时您将看到两个容器的输出。
And you will see output from both containers at the same time.
container1 :: logging line
container1 :: logging line
container2 :: logging line
container2 :: logging line
container1 :: logging line
container1 :: logging line
container2 :: logging line
container2 :: logging line
一次拖曳所有容器:
To tail all your containers at once:
#!/bin/bash
names=$(docker ps --format "{{.Names}}")
echo "tailing $names"
while read -r name
do
# eval to show container name in jobs list
eval "docker logs -f --tail=5 \"$name\" | sed -e \"s/^/[-- $name --] /\" &"
# For Ubuntu 16.04
#eval "docker logs -f --tail=5 \"$name\" |& sed -e \"s/^/[-- $name --] /\" &"
done <<< "$names"
function _exit {
echo
echo "Stopping tails $(jobs -p | tr '\n' ' ')"
echo "..."
# Using `sh -c` so that if some have exited, that error will
# not prevent further tails from being killed.
jobs -p | tr '\n' ' ' | xargs -I % sh -c "kill % || true"
echo "Done"
}
# On ctrl+c, kill all tails started by this script.
trap _exit EXIT
# For Ubuntu 16.04
#trap _exit INT
# Don't exit this script until ctrl+c or all tails exit.
wait
并阻止他们运行 fg
然后按 ctrl + c
为每个容器。
And to stop them run fg
and then press ctrl+c
for each container.
更新:感谢@ Flo-Woo Ubuntu 16.04支持
Update: Thanks to @Flo-Woo for Ubuntu 16.04 support
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