获取 Docker 容器的 PID 号

获取容器的 CONTAINER ID

docker ps -q
5354ce7e85e1

通过 docker top 获取 PID

docker top 5354ce7e85e1
UID                 PID                 PPID                C                   STIME               TTY                 TIME                CMD
root                81534               81517               3                   2019                ?                   05:33:29            java -Djava.security.egd=file:/dev/./urandom -DLog4jContextSelector=org.apache.logging.log4j.core.async.AsyncLoggerContextSelector -Dspring.profiles.active=docker -jar /app.jar

获取所有容器的 PID

for l in `docker ps -q`;do docker top $l|awk -v dn="$l" 'NR>1 {print dn " PID is " $2}';done