**I need to deploy many instances of the same LAMP (or LEMP) application :** 

 - each instance will be accessible from a subdomain, with front loadbalancer/ proxy
 - each instance must have its own db data and files data.
 - each instance might be monitored
 - memory limit / cpu might be set per app instance
 - easy to automate the deployment of an new webapp instance
 - environment might be easily reproducible for test and development.

Application requires :
 
 - dameon processes (`Nginx`, `MariaDB`, `PHPFPM`)
 - binaries (`composer`, `bower`, ...)
 - other systems specific libs &amp; config

**After reading Docker documentation and many howtos, I see different solutions to dockerize this web application :**

---------

Solution 1 : Use an all-in-one Container
----------------

**All the stack is in one container :** 

 - webapp source files, EMP daemon processes, binaries, …
 - mounted volumes for `mysql` and webapp data files

**Examples :**

- `Tutum`  provides an all-in-one container for Wordpress Application : https://github.com/tutumcloud/tutum-docker-wordpress
- `Phusion`, which provides base image optimized for Docker, precises in documentation (https://github.com/phusion/baseimage-docker#docker_single_process) :

  &gt; Docker runs fine with multiple processes in a container. In fact,
  &gt; there is no technical reason why you should limit yourself to one
  &gt; process

**Pros** (IMHO) :

 - Seems easy to automate deploiement, to monitor, to destroy….
 - Easy to use in prod, test and dev environment.

**Cons** (IMHO):

 - Monolithic
 - Hard to scale
 - Does not use all the strength of Docker

---------

Solution 2 : Use a containers stack per webapp instance
----------------

**For each webapp to deploy, a containers stack is deployed :**

 - One container per process : `Nginx`, `Mysql`, `PHP-FPM`,
 - Binary containers (`composer`, `bower`,...) can be also dockerized, or merged in the phpfpm container
 - mount volumes for mysql and webapp data files

**Examples :**

 - the orchestror tool `Gaudi` provides an example with a LEMP architecture based on 3 “daemon” containers (nginx, mysql, phpfpm), and 2 app containers (composer, bower)
(http://marmelab.com/blog/2014/06/04/demo-symfony-with-docker-and-gaudi.html)


**Pro** (IMHO) :

 - Decoupled
 - processes isolated per instance
 - One process per container, no need daemon manager as RUnit or
   Supervisord

**Cons** (IMHO) : 

 - Seems more complicated to do work 
 - Hard to maintain, to see a “big picture” of all containers states, links, version...

---------

Solution 3 : Mixin the 2 previous solutions
----------------

 - One “app” container with : app src files, nginx, phpfmp, composer, git..
 - One container for db mysql, which can be shared or not with the app container

----------

I&#39;m more Dev than Ops, also it&#39;s confused for me.

**So, Questions :**

 1. **What are the criteria, pros/cons to consider** when choosing between theses solutions?
 2. **Howto to manage all the containers stacks** if i choose Solution 2, to have a &quot;big picture&quot; of all containers states, links, version... ?
 3. App src files (PHP) might be built in the container or mounted as volume, eg. /var/www ?


Docker : How To Dockerize And Deploy multiple instances of a LAMP Application

I am new to `Capistrano`and I saw there is shared folder and also option `:linked_files`. I think shared folder is used to keep files between releases. But my question is, how do files end up being in the shared folder?

Also, if I want to symlink another directory to the current directory e.g. static folder at some path, how do I put it at the `linked_dirs` ?

Lastly how to set `chmod 755` to linked_files and linked_dirs.

Thank you.

Capistrano - How to put files in the shared folder?

I&#39;ve been looking into this for a bit now and haven&#39;t gotten it resolved. I get the following error message:

    Compiler Error Message: CS1705: Assembly &#39;My.Model, Version=1.1.4422.23773, Culture=neutral, 
    PublicKeyToken=bfde95ba233094b2&#39; uses 
    &#39;Common, Version=3.3.4273.24368, Culture=neutral, PublicKeyToken=bfde95ba233094b2&#39; 
    which has a higher version than referenced assembly
    &#39;Common, Version=3.3.4269.17112, Culture=neutral, PublicKeyToken=bfde95ba233094b2&#39;

    c:\WINDOWS\assembly\GAC_MSIL\Common\3.3.4269.17112__bfde95ba233094b2\Common.dll: 
    (Location of symbol related to previous error)

The web server is running Server 2003. I went to c:\windows\assembly and did in fact notice that there were 3 versions of Common.dll listed. The highest version listed was 3.3.4269.17112

I copied the dll with version: 3.3.4273.24368 into the assembly directory. I then re-compiled and re-deployed my code (probably overkill but oh well). When I opened my browser in  a new session and went to the site URL again I still got the same message.

I can use windows explorer and verify the higher-versioned Common.dll is now listed as well.

What more can I look into to resolve this issue? I don&#39;t want to change the reference in my assembly to point to the older version.


Error CS1705: &quot;which has a higher version than referenced assembly&quot;

I am testing out using the new web packaging functionality in visual studio 2010 and came across a situation where I use a pre-build event to copy required .dll&#39;s into my bin folder that my app relies on for API calls. They cannot be included as a reference since they are not COM dlls that can be used with interop. 

When I build my deployment package those files are excluded when I choose the option to only include the files required to run the app. Is there a way to configure the deployment settings to include these files? I have had no luck finding any good documentation on this.

How do you include additional files using VS2010 web deployment packages?

error H14 happen while deploying to heroku
this is my procfile:

    web: gunicorn -w 4 -b 0.0.0.0:$PORT -k gevent main:app

log on heroku:

    2017-01-23T10:42:58.904480+00:00 heroku[router]: at=error code=H14 desc=&quot;No web processes running&quot; method=GET path=&quot;/&quot; host=meetcapstone.herokuapp.com request_id=df88efb5-a81a-4ac0-86dc-4e03d71266bb fwd=&quot;81.218.117.137&quot; dyno= connect= service= status=503 bytes=
    2017-01-23T10:42:59.009135+00:00 heroku[router]: at=error code=H14 desc=&quot;No web processes running&quot; method=GET path=&quot;/favicon.ico&quot; host=meetcapstone.herokuapp.com request_id=21cea981-36b0-4410-891f-548bbc29f0ee fwd=&quot;81.218.117.137&quot; dyno= connect= service= status=503 bytes=

requirements:

    Flask==0.11.1
    passlib==1.7.0
    SQLAlchemy==1.1.5
    Werkzeug==0.11.15
    gunicorn==19.0.0
    gevent==1.2.1

H14 error in heroku - &quot;no web processes running&quot;

I can run my Asp.Net MVC 2 application without an issue on my local computer. Just Run / Debug.

But if I have already built it, I can&#39;t publish it! I have to clean the solution and publish it again. I know this is not system critical, but it&#39;s really annoying. &quot;One Click Publish&quot; is not &quot;Clean solution and then One click publish&quot;

The exact error is as follows:

&gt; Error	11	It is an error to use a
&gt; section registered as
&gt; allowDefinition=&#39;MachineToApplication&#39;
&gt; beyond application level.  This error
&gt; can be caused by a virtual directory
&gt; not being configured as an application
&gt; in IIS.

&lt;strike&gt;I suspect it&#39;s something to do with the Web.Config in the Views folder, but then why only after I build once previously. And just to note, the app works fine once published.&lt;/strike&gt;


allowDefinition=&#39;MachineToApplication&#39; error when publishing from VS2010 (but only after a previous build)

My structure looks as follows:

    Component 1

     - |- Component 2


     - - |- Component 4


     - - -  |- Component 5

    Component 3

Component 3 should display some data depending on state of Component 5.

Since props are immutable, I can&#39;t simply save its state in Component 1 and forward it, right? And yes, I&#39;ve read about [Redux][1], but I don&#39;t want to use it. I hope that it&#39;s possible to solve it just with react. Am I wrong?

  [1]: https://en.wikipedia.org/wiki/Redux_(JavaScript_library)



How can I update the parent&#39;s state in React?

I am new to Node.js programming and I have recently created a sample working web application using (express, backbone &amp; other complimentary view technologies, with mongoDB). Now i am at a point where I want to deploy the same on a staging environment and I am not sure how to package this application and distribute the same. [I can take care of mongoDb and setting it up seperately]

I am from Java world and in there we create jars for reusable libs and war/ear packages for web applications which is deployed in a servlet container. Now in this case since node.js itself acts as a web container as well, how do i package my webapp? 

1. Is there any standard format/guidelines of packaging node webapps built using express? (Is there a similar jar/war packaging systems for node apps?)
2. How do I deploy it once packaged? Would it become an exe, since it is also its own container? 

PS: As of now I am thinking of just manually copying all the required source files into the staging environment and run npm commands to download all dependencies on that machine and then use &#39;forever&#39; or some other mechanism to run my server.js. (Also, add some sort of monitoring, just in case app crashes and forever fails) I am not sure if that is the right way? I am sure there must be some standardized way of addressing this problem.

How to package &amp; deploy Node.js + express web application?

I want to package my VS2010 web application project ready for deployment with msdeploy. On development machine I can do this using:

    MSBuild.exe &quot;C:\path\to\WebApp.csproj&quot; /target:package

But on my build server I get this error:

&gt; error MSB4057: The target &quot;package&quot; does not exist in the project.

What am I missing on the build server?

MSBuild target package not found

I wonder how to make a sticky header shrink(with animation) when you scroll down the page and goes back to normal state when the page is scrolled up to the top. Here are two examples to clearify:

http://themenectar.com/demo/salient/

http://www.kriesi.at/themes/enfold/

I get the part to make it fixed, but how should I do to shrink my header when the user scrolls down?

Thanks a ton

jQuery - Sticky header that shrinks when scrolling down

I am getting the following error when I use web deploy from visual studio 2010.
Web deployment task failed. (The type initializer for &#39;Microsoft.Web.Deployment.DeploymentManager&#39; threw an exception.)

I suddenly started getting this error! I published my website many many times with all the same settings, but suddenly it started to give me this error. Could it be something in the website properties? I am using asp.net and have Windows 7 and publishing to Windows Server R2. Please help!

Web deployment task failed. (The type initializer for &#39;Microsoft.Web.Deployment.DeploymentManager&#39; threw an exception.)

I&#39;ve been learning how to create applications in [Electron][1] and I need help compiling a simple project to a Windows executable. The program is a clone from this Github repo: [https://github.com/electron/electron-quick-start][2]. On the repo readme it shows how to run the program:

    # Clone this repository
    git clone https://github.com/electron/electron-quick-start
    # Go into the repository
    cd electron-quick-start
    # Install dependencies
    npm install
    # Run the app
    npm start

This works fine, but I can&#39;t figure out how to simply compile it. I&#39;ve looked all over google, you would think that something as simple as deploying an application would be well known information. 

  [1]: http://electron.atom.io/
  [2]: https://github.com/electron/electron-quick-start

How To Compile An Electron Application To A .exe

I have a script I run to deploy 2 web services and a front-end application. The script calls a method that checks to see if the 2 back-end services are up and running. If so, deem the deploy successful, otherwise revert.

The 2 services sometimes take longer than the front-end to start up. Currently I put in a sleep call to delay the web service check. This allows them time to start up.

I want to remove this sleep and add in a retry mechanism so that if a service is down, just retry the check repeatedly until I get a response.

Tp check if the device is up, I use curl. I&#39;ve read that curl has a retry mechanism but I&#39;ve never used it.

Have any of you solved this problem before? I want to understand the things I must consider when solving it, e.g. do I retry until i get a HTTP 200 from my service?

Anyone any suggestions how I&#39;d test this? I&#39;d need to find a service that was down.

EDIT: I see that -retry only reacts to transient errors &#39;Transient error means either: a timeout, an FTP 4xx response code or an HTTP 5xx response code&#39;. My service can return a 404 therefore curl&#39;s retry is not my solution.

Curl retry mechanism

I&#39;ve used [ClickOnce][1] a lot over the years, but I have run up against a lot of its limitations. What alternatives are there for web deployment?

So far the only one I&#39;ve been able to turn up is [ClickThrough][2], which is part of [WiX][3] now on the back burner. Are there others that have had success?

  [1]: https://en.wikipedia.org/wiki/ClickOnce
  [2]: https://web.archive.org/web/20151226075116/http://blogs.msdn.com:80/b/robmen/archive/2005/11/08/490448.aspx
  [3]: https://en.wikipedia.org/wiki/WiX


What alternatives are there to ClickOnce?

I have all my websites&#39; code under `/srv` in my containers.

My Dockerfile downloads the code using git and makes it part of the image for easier deployment to production.

But then how do I edit the code in development? I thought using volumes was the solution, eg: `-v /docker/mycontainer/srv:/srv`. But it overwrites the directory in the container. If it&#39;s the first time I run it it empties it because there&#39;s nothing in the host. So whatever I did in the Dockerfile was gets lost.

There are also directories and files inside `/srv/myapp` that I want to be shared across the different versions of my app, eg: `/srv/myapp/user-uploads`. This is a [common practice](http://astrails.com/blog/2008/12/17/deployment-process-requirements) in professional web development.

So what can I do to be able to do all these things?:

- edit code in /srv in development
- share /srv/myapp/user-uploads across different versions
- let Dockerfile download the code. Doing &quot;git clone&quot; or &quot;git pull&quot; outside of Docker would defeat Docker&#39;s purpose in my opinion. Besides there are things that I can&#39;t run in the host, like the database migrations or other app-specific scripts.

Is there a way to do a reverse volume mount? I mean make the container overwrite the host, instead of the opposite.

I&#39;m thinking one soluiton might be to copy /srv to /srv.deployment-copy before running the container&#39;s daemon. And then when I run the daemon check if /srv.deployment-copy exists and copy everything back to /srv. This way I can use /srv as a volume and still be able to deploy code to it with the Dockerfile. I&#39;m already using aliases for all the docker commands so automating this won&#39;t be a problem. What do you think?

How to edit code in a Docker container in development?

I know you can deploy automatically to heroku from github, but I haven&#39;t found a way to only push a subfolder from github to heroku.

From the command-line I know it is possible to do this with:

    git subtree push --prefix &lt;subfolder&gt; heroku master

However, I would like to know if there is a way to use the github integration with heroku to make it pull a specific subfolder automatically when a commit is added to a branch.

All Web Deployment Solutions on Gang of Coders

Total of 16 Web Deployment Solutions

Docker : How To Dockerize And Deploy multiple instances of a LAMP Application

Capistrano - How to put files in the shared folder?

Error CS1705: "which has a higher version than referenced assembly"

How do you include additional files using VS2010 web deployment packages?

H14 error in heroku - "no web processes running"

allowDefinition='MachineToApplication' error when publishing from VS2010 (but only after a previous build)

How can I update the parent's state in React?

How to package & deploy Node.js + express web application?