如何解决将 H2O Wave 应用程序部署到 Heroku?
我对部署 Python Web 应用程序比较陌生,但我试图将我的 H2O wave 应用程序部署到 Heroku,但一直遇到问题,而且我在文档中找不到太多帮助。
如果我使用命令(在用于 wave 的 SDK 中)启动服务器,则在本地一切正常:
$ ./waved
2021/01/22 10:26:38 #
2021/01/22 10:26:38 # ┌─────────────────────────┐
2021/01/22 10:26:38 # │ ┌ ┌ ┌──┐ ┌ ┌ ┌──┐ │ H2O Wave
2021/01/22 10:26:38 # │ │ ┌──┘ │──│ │ │ └┐ │ 0.11.0 20210118061246
2021/01/22 10:26:38 # │ └─┘ ┘ ┘ └──┘ └─┘ │ © 2020 H2O.ai,Inc.
2021/01/22 10:26:38 # └─────────────────────────┘
2021/01/22 10:26:38 #
2021/01/22 10:26:38 # {"address":":10101","t":"listen","webroot":"/Users/kenjohnson/Documents/TTT/H2O Wave/wave/www"}
2021/01/22 10:26:39 # {"addr":"127.0.0.1:64065","route":"/tennis-pred","t":"ui_add"}
2021/01/22 10:46:04 # {"host":"http://127.0.0.1:8000","route":"/counter","t":"app_add"}
然后在项目运行的根目录下:
uvicorn tennis_pred_app:main
对于部署,除了我的 wave python 文件之外,我只有一个 requirements.txt
和一个 procfile
:
web: uvicorn tennis_pred_app:main --host 0.0.0.0 --port 10101
这是我的 foo (tennis_pred_app.py) 的样子(简化版):
from h2o_wave import Q,main,app,ui
@app("/tennis-pred")
async def serve(q: Q):
show_form(q)
await q.page.save()
我目前遇到的错误是:
2021-01-22T00:28:41.000000+00:00 app[api]: Build started by user x
2021-01-22T00:31:07.040695+00:00 heroku[web.1]: State changed from crashed to starting
2021-01-22T00:31:06.879674+00:00 app[api]: Deploy 1dc65130 by user x
2021-01-22T00:31:06.879674+00:00 app[api]: Release v23 created by user x
2021-01-22T00:31:26.580199+00:00 heroku[web.1]: Starting process with command `uvicorn tennis_pred_app:main --host 0.0.0.0 --port 20819`
2021-01-22T00:31:30.299421+00:00 app[web.1]: INFO: Uvicorn running on http://0.0.0.0:20819 (Press CTRL+C to quit)
2021-01-22T00:31:30.299892+00:00 app[web.1]: INFO: Started parent process [4]
2021-01-22T00:31:46.000000+00:00 app[api]: Build succeeded
2021-01-22T00:32:27.041954+00:00 heroku[web.1]: Error R10 (Boot timeout) -> Web process Failed to bind to $PORT within 60 seconds of launch
2021-01-22T00:32:27.093099+00:00 heroku[web.1]: Stopping process with SIGKILL
2021-01-22T00:32:27.199933+00:00 heroku[web.1]: Process exited with status 137
2021-01-22T00:32:27.242769+00:00 heroku[web.1]: State changed from starting to crashed
解决方法
您无法在 Heroku 上选择您的端口。相反,Heroku assigns you a port via the PORT
environment variable。
更改您的 Procfile
来自
web: uvicorn foo:main --host 0.0.0.0 --port 10101
到
web: uvicorn foo:main --host 0.0.0.0 --port $PORT
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