docker

Docker는이 를 수행하는 방법에 대한 몇 가지 예 를 제공 합니다. 경량 옵션은 다음과 같습니다.

모든 명령을 랩퍼 스크립트에 넣고 테스트 및 디버깅 정보로 완성하십시오. 랩퍼 스크립트를로 실행하십시오 CMD. 이것은 매우 순진한 예입니다. 먼저 래퍼 스크립트 :

#!/bin/bash

# Start the first process
./my_first_process -D
status=$?
if [ $status -ne 0 ]; then
  echo "Failed to start my_first_process: $status"
  exit $status
fi

# Start the second process
./my_second_process -D
status=$?
if [ $status -ne 0 ]; then
  echo "Failed to start my_second_process: $status"
  exit $status
fi

# Naive check runs checks once a minute to see if either of the processes exited.
# This illustrates part of the heavy lifting you need to do if you want to run
# more than one service in a container. The container will exit with an error
# if it detects that either of the processes has exited.
# Otherwise it will loop forever, waking up every 60 seconds

while /bin/true; do
  ps aux |grep my_first_process |grep -q -v grep
  PROCESS_1_STATUS=$?
  ps aux |grep my_second_process |grep -q -v grep
  PROCESS_2_STATUS=$?
  # If the greps above find anything, they will exit with 0 status
  # If they are not both 0, then something is wrong
  if [ $PROCESS_1_STATUS -ne 0 -o $PROCESS_2_STATUS -ne 0 ]; then
    echo "One of the processes has already exited."
    exit -1
  fi
  sleep 60
done

다음은 Dockerfile입니다.

FROM ubuntu:latest
COPY my_first_process my_first_process
COPY my_second_process my_second_process
COPY my_wrapper_script.sh my_wrapper_script.sh
CMD ./my_wrapper_script.sh

답변

# runs 2 commands simultaneously:

mongod & # your first application
P1=$!
python script.py & # your second application
P2=$!
wait $P1 $P2

CMD bash start.sh