在conda环境中运行气流，且系统D无法启动

Question

我想通过conda安装气流，并使用systemd在Ubuntu上控制气流。我已经能够通过以下步骤成功地将airflow安装到conda环境中，但是我无法正确地配置systemd以使用气流。在

详细信息：

• Ubuntu 18.04版
• Python 3.7.4
• 气流1.10.4

我见过SO #52310217，但问题仍然没有解决。在

以下是从命令行安装和运行airflow的步骤：

$ conda create --name airflow -c conda-forge airflow
$ conda activate airflow
$ export AIRFLOW_HOME=~/airflow
$ airflow initdb

$ airflow scheduler
$ airflow webserver

从这里开始，我在/etc/systemd/system/中创建了以下文件：

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# /etc/systemd/system/airflow-webserver.service
[Unit]
Description=Airflow webserver daemon
After=network.target postgresql.service mysql.service redis.service rabbitmq-server.service
Wants=postgresql.service mysql.service redis.service rabbitmq-server.service

[Service]
Environment="PATH=/home/ubuntu/python/envs/airflow/bin"
User=airflow
Group=airflow
Type=simple
ExecStart=/home/curtis/miniconda3/envs/airflow/bin/airflow webserver -p 8085 --pid /home/curtis/airflow/airflow-webserver.pid
Restart=on-failure
RestartSec=5s
PrivateTmp=true

[Install]
WantedBy=multi-user.target

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在创建了上面的文件之后，我发出了以下命令，但是什么都没有发生。在

sudo systemctl daemon-reload
sudo systemctl enable airflow-scheduler
sudo systemctl start airflow-scheduler
sudo systemctl enable airflow-webserver
sudo systemctl start airflow-webserver

如果我直接在终端窗口中输入ExecStart命令，airflow scheduler和airflow Web服务器将按预期启动。出于这个原因，我不认为这是气流的问题，而是我在systemd配置中缺少的东西。在

我不知道该从中得到什么，但这里是气流调度程序和气流Web服务器的状态。在

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[curtis:~/airflow/logs/scheduler] [airflow] 4 $ sudo systemctl status airflow-scheduler
● airflow-scheduler.service - Airflow scheduler daemon
   Loaded: loaded (/etc/systemd/system/airflow-scheduler.service; enabled; vendor preset: enabled)
   Active: activating (auto-restart) (Result: exit-code) since Mon 2019-08-19 22:36:35 PDT; 3s ago
  Process: 5623 ExecStart=/home/curtis/miniconda3/envs/airflow/bin/airflow scheduler (code=exited, status=217/USER)
 Main PID: 5623 (code=exited, status=217/USER)

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[curtis:~/airflow/logs/scheduler] [airflow] 3 $ sudo systemctl status airflow-webserver
● airflow-webserver.service - Airflow webserver daemon
   Loaded: loaded (/etc/systemd/system/airflow-webserver.service; enabled; vendor preset: enabled)
   Active: activating (auto-restart) (Result: exit-code) since Mon 2019-08-19 22:36:46 PDT; 895ms ago
  Process: 5805 ExecStart=/home/curtis/miniconda3/envs/airflow/bin/airflow webserver -p 8085 --pid /home/curtis/airflow/airflow-webserver
 Main PID: 5805 (code=exited, status=217/USER)

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Answer 1

我发现了这个问题，并想把这个贴在这里给其他遇到同样问题的人。在

• User应该是您当前的用户名，或者安装Airflow的用户名。对我来说那是“柯蒂斯”
• Group应该是您当前的组，或者安装气流的用户组。对我来说那是“柯蒂斯”
• Environment是到conda环境的路径。在我的例子中，那是PATH=/home/curtis/miniconda3/envs/airflow/bin

我已经包括了我更正的systemd文件供你参考。在

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# /etc/systemd/system/airflow-scheduler.service
[Unit]
Description=Airflow scheduler daemon
After=network.target postgresql.service mysql.service redis.service rabbitmq-server.service
Wants=postgresql.service mysql.service redis.service rabbitmq-server.service

[Service]
Environment="PATH=/home/curtis/miniconda3/envs/airflow/bin"
User=curtis
Group=curtis
Type=simple
ExecStart=/home/curtis/miniconda3/envs/airflow/bin/airflow scheduler
Restart=always
RestartSec=5s

[Install]
WantedBy=multi-user.target

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