dhis2-users team mailing list archive

[Bob Jolliffe <bobjolliffe@xxxxxxxxx>]

Hi Gerald

Now we are all getting confused.  Myself included.

You will recall I installed dhis2-tools on your machine some time back
and noticed that you have apache2 and ihris running.  So I never
installed nginx at all (and that is also why it is not a dependency of
the dhis2-tools package).

I also configured the apache reverse proxy in
/etc/apache2/mods-enabled/proxy.conf.  Which was working because the
dhis server was accessable.  Its not clear to me really how this could
have made ihris "not available" in the process.

We'll take it up off line ...

Cheers
Bob



On 3 July 2015 at 10:13, gerald thomas <gerald17006@xxxxxxxxx> wrote:
> Dear Bob,
> I didn't actually uninstall nginx. This is what i did:
>
> 1. I ran a2enmod module
> 2. nano /etc/apache2/sites-enabled/000-default.conf
> 3. I define a proxy virtual host using mod_virtualhost
>
> <VirtualHost *:*>
>     ProxyPreserveHost On
>
>     # Servers to proxy the connection, or;
>     # List of application servers:
>     # Usage:
>     ProxyPass / http://[IP Addr.]:[80]/hris
>     ProxyPassReverse / http://[IP Addr.]:[8080]/dhis
>     # Example:
>     ProxyPass / http://0.0.0.0:8080/
>     ProxyPassReverse / http://0.0.0.0:8080/
>
>     ServerName localhost
> </VirtualHost>
>
> service apache2 restart
>
> Then i test both application where running. Please let me know if it
> makes sense.
> NOTE: 0.0.0.0 was replaced by the local server IP
>
> On 7/3/15, Bob Jolliffe <bobjolliffe@xxxxxxxxx> wrote:
>> Hi Gerald
>>
>> So you are using apache as reverse proxy and uninstalled nginx.  That is
>> fine.
>>
>> There is not much to choose between the two.  Using nginx as reverse
>> proxy in front of apache is very light though obviously costs a
>> little.  On the other hand apache is a slightly heavier reverse proxy
>> than nginx so also costs a little.
>>
>> The important thing is to have one proxy rather than accessing
>> different urls directly through different ports.  For one thing it
>> allows you to share the benefits of your your ssl certificate.  Also
>> it gives you some flexibility, for example if one day you get yourself
>> a separate server to run dhis you just reconfigure the proxy so there
>> is no change for users.
>>
>> Cheers
>> Bob
>>
>> On 3 July 2015 at 09:01, gerald thomas <gerald17006@xxxxxxxxx> wrote:
>>> Dear Jason/Bob,
>>> I already choose the first option Bob gave and both of the
>>> applications are up and running.
>>> Please i can i know my disadvantages of doing this because that is the
>>> only server I have right now and i am sure it is doing a lot of
>>> processes.
>>>
>>> On 7/3/15, Jason Pickering <jason.p.pickering@xxxxxxxxx> wrote:
>>>> Hi Gerald,
>>>>
>>>> So part of the problem with dhis2-tools is that it makes some
>>>> assumptions
>>>> about your setup. Namely, that you do not really have anything else
>>>> running
>>>> on the machine other than DHIS2. In your case, you have IHRIS, which is
>>>> a
>>>> PHP application, and it is being served by the Apache HTTP server.
>>>>
>>>> The link which I sent to you, describes how to use the Apache HTTP as a
>>>> reverse proxy, which in your case, would seem to be simpler. Usually, we
>>>> would use Nginx as a reverse proxy because it is faster and has a much
>>>> smaller memory foot print than Apache HTTP. But with your setup, you
>>>> already have Apache HTTP installed, so it would seem simpler (to me) to
>>>> simply use that as your reverse proxy for DHIS2 as well, rather than
>>>> having
>>>> both Apache HTTP and NGINX running on the same machine.
>>>>
>>>> As Bob just mailed, there are different ways of doing it, each with
>>>> their
>>>> advantages and disadvantages, but Apache is fully capable of serving as
>>>> a
>>>> reverse proxy for DHIS2, so it would just seem simpler to use it.
>>>>
>>>> Regards,
>>>> Jason
>>>>
>>>>
>>>> On Fri, Jul 3, 2015 at 8:45 AM, gerald thomas <gerald17006@xxxxxxxxx>
>>>> wrote:
>>>>
>>>>> Dear Jason,
>>>>> I am sure both the Apache and Nginx needs to run together but after
>>>>> looking at the manuals i found out that the normal installation of
>>>>> nginx is different from the way "dhis2-tool" runs it installation.
>>>>> I am a bit confuse where i should start.
>>>>>
>>>>>
>>>>> On 7/3/15, Jason Pickering <jason.p.pickering@xxxxxxxxx> wrote:
>>>>> > Hi Gerald,
>>>>> >
>>>>> > Not to confuse stuff too much, but if you already have Apache
>>>>> > running,
>>>>> you
>>>>> > could also consider to use that as a reverse proxy for DHIS2 as well.
>>>>> This
>>>>> > is described here
>>>>> >
>>>>> >
>>>>> https://www.dhis2.org/doc/snapshot/en/implementer/html/ch08s03.html#d5e648
>>>>> >
>>>>> > That way, you would not need both Apache and Nginx running, although
>>>>> there
>>>>> > could be reasons why you might want that as seen from the article
>>>>> > which
>>>>> > Halvdan shared.
>>>>> >
>>>>> > Regards,
>>>>> > Jason
>>>>> >
>>>>> >
>>>>> > On Fri, Jul 3, 2015 at 8:05 AM, gerald thomas <gerald17006@xxxxxxxxx>
>>>>> > wrote:
>>>>> >
>>>>> >> Dear all,
>>>>> >> Thanks for your responses I will look at the nginx configuration
>>>>> >> file
>>>>> and
>>>>> >> get back to this forum.
>>>>> >>
>>>>> >> Regards,
>>>>> >> Gerald
>>>>> >> On 3 Jul 2015 05:57, "Knut Staring" <knutst@xxxxxxxxx> wrote:
>>>>> >>
>>>>> >>> As Halvdan implies, you probably now havr both nginx and apache
>>>>> >>> running
>>>>> >>> on the same port (80) and thus blocking each other. You probably no
>>>>> >>> longer
>>>>> >>> need Apache now that you have nginx, but need to point nginx to the
>>>>> >>> ihris
>>>>> >>> installation.
>>>>> >>> Knut
>>>>> >>> On Jul 2, 2015 11:40 PM, "Halvdan Grelland" <halvdanhg@xxxxxxxxx>
>>>>> wrote:
>>>>> >>>
>>>>> >>>> I presume you've set up DHIS2 with nginx or Apache (as per usual
>>>>> >>>> with
>>>>> >>>> the standard dhis2-tools setup).
>>>>> >>>>
>>>>> >>>> What you need to do is configure nginx (presuming that's what
>>>>> >>>> you're
>>>>> >>>> using) with a location for both, /dhis and /hris respectively. The
>>>>> >>>> /dhis
>>>>> >>>> location should be configured already, evident by what you're
>>>>> >>>> saying,
>>>>> >>>> iHRIS
>>>>> >>>> i'm not familiar with, but a quick googling tells me it uses
>>>>> >>>> apache,
>>>>> >>>> meaning you'd probably want to set up nginx as a common front-end
>>>>> >>>> for
>>>>> >>>> both.
>>>>> >>>> I found this link
>>>>> >>>> <
>>>>> https://www.digitalocean.com/community/tutorials/how-to-configure-nginx-as-a-reverse-proxy-for-apache
>>>>> >
>>>>> >>>> but
>>>>> >>>> cannot really vouch for its content (I only skimmed through it).
>>>>> >>>>
>>>>> >>>> The details you should be able to find online as there are vast
>>>>> >>>> resources on configuring both nginx and Apache. It's not really a
>>>>> DHIS2
>>>>> >>>> or
>>>>> >>>> iHRIS specific case.
>>>>> >>>>
>>>>> >>>> Best of luck!
>>>>> >>>>
>>>>> >>>> Halvdan,
>>>>> >>>> DHIS2 developer
>>>>> >>>>
>>>>> >>>> 2015-07-02 23:13 GMT+02:00 gerald thomas <gerald17006@xxxxxxxxx>:
>>>>> >>>>
>>>>> >>>>> Dear All,
>>>>> >>>>>
>>>>> >>>>> My DHIS2 was running on the old installation method which means
>>>>> >>>>> was
>>>>> >>>>> accessing it using:
>>>>> >>>>> http://localhost:8080/dhis.
>>>>> >>>>>
>>>>> >>>>> Now i had changed the method of installation using the dhis2-tool
>>>>> >>>>> method and i can access it using:
>>>>> >>>>> http://localhost/dhis
>>>>> >>>>>
>>>>> >>>>> Now my issues:
>>>>> >>>>> This server was running Integrated Human Resource Information
>>>>> >>>>> System
>>>>> >>>>> (iHRIS) and was being access using
>>>>> >>>>> http://localhost/hris/login
>>>>> >>>>>
>>>>> >>>>> Currently, when the instance of dhis2 is running iHRIS will goes
>>>>> >>>>> down
>>>>> >>>>> and when dhis2 goes down iHRIS will work fine.
>>>>> >>>>>
>>>>> >>>>> Please i need both to run in parallel can anyone help me how i
>>>>> >>>>> can
>>>>> >>>>> do
>>>>> >>>>> it.
>>>>> >>>>>
>>>>> >>>>> Kindly note that
>>>>> >>>>> iHRIS (Database is MySQL)
>>>>> >>>>> DHIS2 (Database is PostgreSQL)
>>>>> >>>>>
>>>>> >>>>> --
>>>>> >>>>> Regards,
>>>>> >>>>>
>>>>> >>>>> Gerald
>>>>> >>>>>
>>>>> >>>>> _______________________________________________
>>>>> >>>>> Mailing list: https://launchpad.net/~dhis2-devs
>>>>> >>>>> Post to     : dhis2-devs@xxxxxxxxxxxxxxxxxxx
>>>>> >>>>> Unsubscribe : https://launchpad.net/~dhis2-devs
>>>>> >>>>> More help   : https://help.launchpad.net/ListHelp
>>>>> >>>>>
>>>>> >>>>
>>>>> >>>>
>>>>> >>>> _______________________________________________
>>>>> >>>> Mailing list: https://launchpad.net/~dhis2-users
>>>>> >>>> Post to     : dhis2-users@xxxxxxxxxxxxxxxxxxx
>>>>> >>>> Unsubscribe : https://launchpad.net/~dhis2-users
>>>>> >>>> More help   : https://help.launchpad.net/ListHelp
>>>>> >>>>
>>>>> >>>>
>>>>> >> _______________________________________________
>>>>> >> Mailing list: https://launchpad.net/~dhis2-users
>>>>> >> Post to     : dhis2-users@xxxxxxxxxxxxxxxxxxx
>>>>> >> Unsubscribe : https://launchpad.net/~dhis2-users
>>>>> >> More help   : https://help.launchpad.net/ListHelp
>>>>> >>
>>>>> >>
>>>>> >
>>>>> >
>>>>> > --
>>>>> > Jason P. Pickering
>>>>> > email: jason.p.pickering@xxxxxxxxx
>>>>> > tel:+46764147049
>>>>> >
>>>>>
>>>>>
>>>>> --
>>>>> Regards,
>>>>>
>>>>> Gerald
>>>>>
>>>>
>>>>
>>>>
>>>> --
>>>> Jason P. Pickering
>>>> email: jason.p.pickering@xxxxxxxxx
>>>> tel:+46764147049
>>>>
>>>
>>>
>>> --
>>> Regards,
>>>
>>> Gerald
>>>
>>> _______________________________________________
>>> Mailing list: https://launchpad.net/~dhis2-users
>>> Post to     : dhis2-users@xxxxxxxxxxxxxxxxxxx
>>> Unsubscribe : https://launchpad.net/~dhis2-users
>>> More help   : https://help.launchpad.net/ListHelp
>>
>
>
> --
> Regards,
>
> Gerald