buildpack

I'm trying to install OpenCV on Heroku so my Python web app can use OpenCV. How can I go about doing this? Thanks! Links posted by friism didin't work for me, so I created a custom buildpack that should be more than enough for the situation you described. You can find the buildpack here . this question has also come up on the Heroku forums . It looks like there are a couple buildpacks you could look into: https://github.com/gimlids/heroku-buildpack-python-opencv https://github.com/hdachev/heroku-buildpack-opencv Here's how to use a custom buildpack . Its for the fellow googlers who might have

I git cloned a Node.js application (the version specified in the package.json being 4.1.2 and that of my local machine being 6.2.2 ) and tried to git push on Heroku. But it failed to build and gave this error: Failed to detect set buildpack https://codon-buildpacks.s3.amazonaws.com/buildpacks/heroku/nodejs.tgz Now I set the buildpack to heroku/nodejs and I get this message: Buildpack set. Next release on lit-badlands-92088 will use heroku/nodejs. Run git push heroku master to create a new release using this buildpack. Now when I run git push heroku master , I am again told: remote: ----

Setup: selenium : 3.141.0 python : 3.6.7 heroku-stack : heroku-18 headless-chrome : v71.0.3578.80 buildpack installed chromedriver : v2.44.609551 buildpack installed I'm getting this error when using selenium in heroku: urllib3.exceptions.ProtocolError: ('Connection aborted.', ConnectionResetError(104, 'Connection reset by peer')) I googled but didn't have luck. The error happens at the last line of this code. Code from selenium import webdriver from selenium.common.exceptions import TimeoutException from selenium.webdriver.support.wait import WebDriverWait from selenium.webdriver.support

基本原理 CF运行应用的基本过程是将用户发布的应用程序包解压开，然后将自己的所有buildpack拿来，按照指定顺序与程序包进行匹配，直到找到第一个能够运行这些代码的buildpack，然后将buildpack也解开，与这些应用代码打成一个包（即droplet），在按照指定的运行环境参数生成容器，将droplet扔进去，按照buildpack指定的启动命令，启动应用。在上面的过程中，buildpack实现了三步功能： 第一步， detect ：检查当前应用程序包是否能够用本buildpack支持运行，比如，java buildpack发现WEB-INF路径就认为自己能够运行它。 第二步， compile ：将应用程序包与buildpack包水乳交融一下，比如将java程序包放到tomcat的应用目录下，然后替换某些参数，比如将当前dea里的随机端口赋予这个tomcat实例。 第三部， release ：将droplet启动，比如运行tomcat的startup.sh。 任何一个buildpack都有一个bin路径，放着三个指定名字（detect、compile、release）的脚本（任何dea的os能执行的脚本都可以），然后具体的实现逻辑就从这里触发了。下面将以 java buildpack 为例，通过三个实际需求，介绍buildpack的开发和使用。 自定义buildpack