Docker Attach 命令及操作场景应用(容器交互机制)

docker attach [OPTIONS] CONTAINER

docker attach my_container

docker attach --detach-keys="ctrl-a,d" my_container

docker attach --no-stdin my_container

# 启动容器
docker run -it --name pyapp python:3.9 bash
# 在容器内启动应用
python -c "while True: print('Running...'); import time; time.sleep(1)"
# 新终端附加
docker attach pyapp

docker attach --no-stdin --detach-keys="ctrl-x" nginx_prod

docker attach --no-stdin --sig-proxy=false prod_container

# 创建仅附加权限的用户
docker update --restart=always \
--device-read-bps /dev/null \
--device-write-bps /dev/null \
prod_container

# 记录attach操作
echo "$(date): User $(whoami) attached to $container" >> /var/log/docker_audit.log

docker exec -it my_container sh

docker attach --sig-proxy=false my_container

docker logs -f my_container

docker attach --no-stdin my_container | grep "ERROR"

DOCKER_HOST="tcp://0.0.0.0:2375" docker attach my_container

echo "test_input" | docker attach --no-stdin test_container

for container in $(docker ps -q); do
  echo "=== $container ==="
  docker attach --no-stdin $container &
done

services:
  app:
    stdin_open: true
    tty: true