deployment

问题 I deployed an application on Heroku which I wrote on Ruby on Rails. It is a movie review app. I am able to upload images from my computer, to the web app online. Everything else works as per my expectations. The images disappear after a day. My requirement is to have the image continue to render. I am using Paperclip gem from rails. This only happens on the deployed version and not on localhost. 回答1: The default upload location on Heroku is into temporary storage. This is because you will get

问题 I was hoping for some guidance on the best way to promote a build through its environments. We have 3 environments, DEV, STAGING, PROD. The DEV Jenkins build is running in a continuous integration set-up, as code is checked in to subversion, Jenkins will run a new build (clean, compile, test, deploy). The tricky bit is when it comes to STAGING and PROD. The idea was to be able to manually promote a successful DEV build to STAGING. STAGING build would check out the DEV's SVN Revision number,

问题 When I run this fabfile.py ... from fabric.api import env, run, local, cd def setenv(foo): env.hosts = ['myhost'] def mycmd(foo): setenv(foo) print(env.hosts) run('ls') with this command fab mycmd:bar . I get this output... ['myhost'] No hosts found. Please specify (single) host string for connection: What, what?! I don't get it? I've set the env.hosts and it seems to be valid "inside" the mycmd function, but for some reason that run command doesn't know about the hosts I've specified. Color

问题 My production server has no access to the internet, so it's a bit a mess copying all the dependencies from my dev machine to the production/development server. If I'd use virtualenv, I'd have all my dependencies in this environment. Doing this I'd also be able to deploy it on any machine, which has python & virtualenv installed. But I've seen this rarely, and it seems kind of dirty. Am I wrong and this could be a good practice, or are there other ways to solve that nicely? 回答1: Three options

问题 I have a library, say LIB, which exposes the quite a few APIs and classes for use by application developers. If there are more than one applications that use LIB on the phone, I want only one instance of LIB to be created and running. It is somewhat similar to what Android Platform Services like LocationManager, SensorManager, PackageManager etc. Specifically, there are two problems that are to be addressed:- How to make sure that there is only one instance of LIB ? How to deploy LIB(separate

问题 I typically refer to any assets on my site using absolute path so that I don't have to worry about the location of the assets relative to current file. <!-- Using a absolute path. --> <img src="/images/flag.png" /> <!-- Using a relative path. --> <img src="../../../images/flag.png" /> However, this time I need to host the site at a non-root location e.g. http://my-server.com/holiday/ . How would I go about this? I am looking for a solution that doesn't require me to change the path in my

问题 I followed all the steps successfully as mention in the Qt documentation: Qt for Linux/X11 - Building from Source Qt for Linux/X11 - Deployment But I still couldn't make static Qt application, the executable generated by the above documented steps still needs Qt shared objects on other system. Any ideas? 回答1: You need to deploy the application, for this purpose I use the utility cqtdeployer This utility itself collects all the necessary dependencies of your application and you do not have to

问题 I followed all the steps successfully as mention in the Qt documentation: Qt for Linux/X11 - Building from Source Qt for Linux/X11 - Deployment But I still couldn't make static Qt application, the executable generated by the above documented steps still needs Qt shared objects on other system. Any ideas? 回答1: You need to deploy the application, for this purpose I use the utility cqtdeployer This utility itself collects all the necessary dependencies of your application and you do not have to

问题 I read about this on Tomcat guide here and some SO questions. And I think I'm pretty much doing the same thing. But in some way cannot manage to succeed. First of all I have to say that my application is deployed on a shared Tomcat server that I have no control over. I just drop my .war file and it gets deployed. I tried to package my application as ROOT.war but didn't work. The admin told me to package it as whatever the name I want and they would take care of it. I packaged it as my

问题 I have written a single Kafka consumer (using Spring Kafka), that reads from a single topic and is a part of a consumer group. Once a message is consumed, it will perform all downstream operations and move on to the next message offset. I have packaged this as a WAR file and my deployment pipeline pushes this out to a single instance. Using my deployment pipeline, I could potentially deploy this artifact to multiple instances in my deployment pool. However, I am not able to understand the