我正在尝试在RHEL 7上启动一个docker-compose项目作为systemd服务。这是我systemd脚本(/etc/systemd/system/wp.service(：
[Unit]
Description=wp service with docker compose
Requires=docker.service
After=docker.service
[Service]
EnvironmentFile=/home/ec2-user/projects/wp/project-dir/vars.env
WorkingDirectory=/home/ec2-user/projects/wp/project-dir
# ExecStartPre=/usr/bin/docker-compose down
ExecStart=/usr/bin/docker-compose up -d --build --remove-orphans
# ExecStop=/usr/bin/docker-compose down
[Install]
WantedBy=multi-user.target
当我执行以下命令时：
sudo systemctl status wp.service
一切正常 - 容器运行并保持运行。这是sudo systemctl status wp.service的输出
Aug 15 03:07:22 ip-172-31-33-87.ec2.internal docker-compose[4185]: ---> Using cache
Aug 15 03:07:22 ip-172-31-33-87.ec2.internal docker-compose[4185]: ---> 7392974149d3
Aug 15 03:07:22 ip-172-31-33-87.ec2.internal docker-compose[4185]: Successfully built 7392974149d3
Aug 15 03:07:22 ip-172-31-33-87.ec2.internal docker-compose[4185]: Successfully tagged foo_wp:latest
Aug 15 03:07:22 ip-172-31-33-87.ec2.internal docker-compose[4185]: Creating mysql ...
Aug 15 03:07:22 ip-172-31-33-87.ec2.internal docker-compose[4185]: [55B blob data]
Aug 15 03:07:23 ip-172-31-33-87.ec2.internal docker-compose[4185]: [37B blob data]
容器已启动：
[ec2-user@ip-172-31-33-87 ~]$ sudo docker container ls -a
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
579b52c8e3bc foo_wp "docker-entrypoint.s…" About a minute ago Up About a minute 0.0.0.0:9101->80/tcp wp
3c418cfe2b9c mariadb:10.3.8-bionic "docker-entrypoint.s…" About a minute ago Up About a minute 3306/tcp mysql
但是，如果我取消注释上面的ExecStop行(并运行docker-compos down并重新加载服务(，则容器在运行后将被删除。状态命令的输出为：
Loaded: loaded (/etc/systemd/system/wp.service; disabled; vendor preset: disabled)
Active: deactivating (stop) since Wed 2018-08-15 03:12:12 UTC; 7s ago
Process: 4862 ExecStart=/usr/bin/docker-compose up -d --build --remove-orphans (code=exited, status=0/SUCCESS)
Main PID: 4862 (code=exited, status=0/SUCCESS); : 5165 (docker-compose)
Tasks: 2
Memory: 19.0M
CGroup: /system.slice/wp.service
└─control
└─5165 /usr/bin/python2 /usr/bin/docker-compose down
Aug 15 03:12:11 ip-172-31-33-87.ec2.internal docker-compose[4862]: Step 3/3 : COPY wordpress/ /var/www/html/
Aug 15 03:12:11 ip-172-31-33-87.ec2.internal docker-compose[4862]: ---> Using cache
Aug 15 03:12:11 ip-172-31-33-87.ec2.internal docker-compose[4862]: ---> 7392974149d3
Aug 15 03:12:11 ip-172-31-33-87.ec2.internal docker-compose[4862]: Successfully built 7392974149d3
Aug 15 03:12:11 ip-172-31-33-87.ec2.internal docker-compose[4862]: Successfully tagged foo_wp:latest
Aug 15 03:12:11 ip-172-31-33-87.ec2.internal docker-compose[4862]: Creating mysql ...
Aug 15 03:12:11 ip-172-31-33-87.ec2.internal docker-compose[4862]: [55B blob data]
Aug 15 03:12:12 ip-172-31-33-87.ec2.internal docker-compose[4862]: [37B blob data]
Aug 15 03:12:12 ip-172-31-33-87.ec2.internal docker-compose[5165]: Stopping wp ...
Aug 15 03:12:12 ip-172-31-33-87.ec2.internal docker-compose[5165]: Stopping mysql ...
并且容器已被移除：
sudo docker container ls -a
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
[ec2-user@ip-172-31-33-87 foo]$
似乎 systemd 服务在ExecStart脚本之后立即执行ExecStop脚本。可能是什么原因？
您正在分离模式下运行 docker-compose(选项 -d(。启动容器后，docker-compose 将守护容器并退出。
Systemd 监视 docker-compose 的 PID，当它退出时，假设您的程序已停止并将调用ExecStop命令。
尝试在没有 -d 选项的情况下运行它。
systemd 这样做的原因是您没有指定单位的类型，默认情况下它会恢复为Type=simple。
请参阅类型和执行停止的官方文档。