无需更改代码即可重新部署 Heroku 应用程序 [英] Redeploy Heroku app without code changes

问题描述

我想部署一个 Heroku 应用程序，该应用程序将使用 git push -u heroku master 理想地完成.但是，这仅在有任何待推送到 master 的未决提交时才有效.

I would like to deploy a Heroku app which will be done ideally using git push -u heroku master. However this will only work if there are any pending commits to be pushed to master.

如何在没有任何推送的情况下重新部署应用程序?我尝试了 git push -u heroku master -f 并且在下面仍然得到相同的结果

How can I redeploy the app while there is nothing to push ? I tried git push -u heroku master -f and still get the same below

Branch master set up to track remote branch master from heroku.
Everything up-to-date

PS:我也想保留现有的应用程序，这意味着我不能使用这个答案 https://stackoverflow.com/a/22043184/968442

PS: I also want to retain the existing app, which means I cannot make use of this answer https://stackoverflow.com/a/22043184/968442

推荐答案

通常设置配置变量会导致您的应用程序重新启动.在大多数情况下，执行此操作后应该不需要重新部署.

Normally setting a config var causes your application to be restarted. In most situations there should be no need to redeploy after doing this.

如果你真的需要触发一个新的部署，你可以添加一个新的空提交，然后再次推送到 Heroku:

If you really do need to trigger a new deployment you can add a new empty commit, then push to Heroku again:

git commit --allow-empty -m "Trigger Heroku deploy after enabling collectstatic"
git push heroku master

新的空提交是常规提交.它有一个哈希值、一个作者、一个时间戳等.它将与它的父级具有相同的树.这应该会导致 Heroku 使用与上一次提交相同的代码再次构建您的应用程序 slug.

The new empty commit is a regular commit. It has a hash, an author, a timestamp, etc. It will have the same tree as its parent. This should cause Heroku to build your app slug again using the same code as the previous commit.

这有点尴尬，但它有效.

It's a bit awkward, but it works.

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