installing the gem in heroku environment

[rolandjitsu]

Hey @methodmissing / @errordeveloper, I have just tried to deploy an app that uses this gem on Heroku but, unfortunately, it does not build because of the libmosquitto lib.

Could you suggest a way to solve this? Or this is just the way it is and there is no solution for it?

[erkki]

@rolandjitsu I believe the correct way would be to use a custom buildpack which installs libmosquitto, similar to eg https://github.com/mcollina/heroku-buildpack-imagemagick

[rolandjitsu]

@erkki, I'm not exactly an expert in writing shell scripts, do you have, perhaps, an example of how I could write a simple buildpack such as that one?

[erkki]

@rolandjitsu check out https://github.com/ddollar/heroku-buildpack-apt, that would enable you to install arbitrary apt packages as dependencies

[rolandjitsu]

@erkki, I managed to install some buildpacks, but it seems like this lib needs to be build from source, is that an issue?

The current Ubuntu packages aren't on 1.3.1 yet - it's recommended to build libmosquitto from source (see below) until further notice. OpenSSL is an optional dependency - libmosquitto builds without it, however TLS specific features would not be available.

wget http://mosquitto.org/files/source/mosquitto-1.3.1.tar.gz
tar xzf mosquitto-1.3.1.tar.gz
cd mosquitto-1.3.1
cmake .
sudo make install

Because this is not exactly an apt-get anymore and it fails to find any lib called mosquitto.

[erkki]

yeah if installing from source would need to use a similar approach but have one of the buildpacks do the building

[rolandjitsu]

@erkki, so create a new buildpack that does the commands:

wget http://mosquitto.org/files/source/mosquitto-1.3.1.tar.gz
tar xzf mosquitto-1.3.1.tar.gz
cd mosquitto-1.3.1
cmake .
sudo make install

Is it as easy as pasting this commands into a shell script and push to git? Or do you actually have to write way more just for this?

[erkki]

should be pretty much that, check one of the existing buildpacks re where to put this exactly

[rolandjitsu]

@erkki, thanks, I'll try to do just that, I hope I can manage :)

[rolandjitsu]

I just gave it a shot on heroku-buildpack-mosquitto, but it is failing and it's rejected by Heroku. @erkki or if anyone could help out it would be great :) Because I have no clue what I'm doing.

Heroku Docs: Some docs can be found at that link, it did not help me though :)

[errordeveloper]

@rolandjitsu https://github.com/rolandjitsu, what error message do you get from Heroku?

On 25 May 2014 20:20, Roland notifications@github.com wrote:

I just gave it a shot on heroku-buildpack-mosquittohttps://github.com/rolandjitsu/heroku-buildpack-mosquitto, but it is failing and it's rejected by Heroku.

@erkki https://github.com/erkki or if anyone could help out it would be great :) Because I have no clue what I'm doing.

Reply to this email directly or view it on GitHubhttps://github.com/xively/mosquitto/issues/13#issuecomment-44143078 .

[rolandjitsu]

Hey @errordeveloper, I have created a stackoverflow post with the description of what I am doing, the repo that I created quickly with a build package and what is the error that I get.

[errordeveloper]

@erkki https://github.com/erkki, @methodmissinghttps://github.com/methodmissing I think this can be closed...

On 26 May 2014 06:53, Roland notifications@github.com wrote:

Hey @errordeveloper https://github.com/errordeveloper, I have created a stackoverflowhttp://stackoverflow.com/questions/23859847/heroku-buildpack-for-installing-libmosquittopost with the description of what I am doing, the repo https://github.com/rolandjitsu/heroku-buildpack-mosquitto that I created quickly with a build package and what is the error that I get.

Reply to this email directly or view it on GitHubhttps://github.com/xively/mosquitto/issues/13#issuecomment-44159202 .

[methodmissing]

Thanks Ilya - closing.

[rolandjitsu]

@methodmissing, @errordeveloper, @erkki I managed to get a bit further with it, but now I get some other issues with it. I get the following error:

/tmp/buildpackJO4Ao/bin/compile: line 40: cmake: command not found
set -e; for d in lib client src; do make -C ${d}; done
make[1]: Entering directory `/tmp/fakesu-mosquitto-cN5z/mosquitto-1.3.1/lib'
cc -Wall -ggdb -O2  -I. -I.. -I../lib -fPIC -DWITH_TLS -DWITH_TLS_PSK -DWITH_THREADING -DWITH_SRV -c mosquitto.c -o mosquitto.o
In file included from mosquitto.c:46:
mosquitto_internal.h:51:20: error: ares.h: No such file or directory
In file included from mosquitto.c:46:
mosquitto_internal.h:238: error: expected specifier-qualifier-list before 'ares_channel'
In file included from mosquitto.c:55:
tls_mosq.h:40:6: warning: #warning "TLS-PSK not supported, openssl too old."
mosquitto.c: In function 'mosquitto_loop':
mosquitto.c:841: error: 'struct mosquitto' has no member named 'achan'
mosquitto.c:844: warning: implicit declaration of function 'ares_fds'
mosquitto.c:844: error: 'struct mosquitto' has no member named 'achan'
mosquitto.c:924: error: 'struct mosquitto' has no member named 'achan'
mosquitto.c:925: warning: implicit declaration of function 'ares_process'
mosquitto.c:925: error: 'struct mosquitto' has no member named 'achan'
make[1]: *** [mosquitto.o] Error 1
make[1]: Leaving directory `/tmp/fakesu-mosquitto-cN5z/mosquitto-1.3.1/lib'
make: *** [mosquitto] Error 2
       mosquitto installed
cp: cannot stat `/app/tmp/cache/.tools/mosquitto/bin/mosquitto': No such file or directory

[errordeveloper]

Sure, you just need to install cmake. On 26 May 2014 15:00, "Roland" notifications@github.com wrote:

I managed to get a bit further with it, but now I get some other issues with it. I get the following error:

/tmp/buildpackJO4Ao/bin/compile: line 40: cmake: command not found set -e; for d in lib client src; do make -C ${d}; done make[1]: Entering directory /tmp/fakesu-mosquitto-cN5z/mosquitto-1.3.1/lib' cc -Wall -ggdb -O2 -I. -I.. -I../lib -fPIC -DWITH_TLS -DWITH_TLS_PSK -DWITH_THREADING -DWITH_SRV -c mosquitto.c -o mosquitto.o In file included from mosquitto.c:46: mosquitto_internal.h:51:20: error: ares.h: No such file or directory In file included from mosquitto.c:46: mosquitto_internal.h:238: error: expected specifier-qualifier-list before 'ares_channel' In file included from mosquitto.c:55: tls_mosq.h:40:6: warning: #warning "TLS-PSK not supported, openssl too old." mosquitto.c: In function 'mosquitto_loop': mosquitto.c:841: error: 'struct mosquitto' has no member named 'achan' mosquitto.c:844: warning: implicit declaration of function 'ares_fds' mosquitto.c:844: error: 'struct mosquitto' has no member named 'achan' mosquitto.c:924: error: 'struct mosquitto' has no member named 'achan' mosquitto.c:925: warning: implicit declaration of function 'ares_process' mosquitto.c:925: error: 'struct mosquitto' has no member named 'achan' make[1]: *** [mosquitto.o] Error 1 make[1]: Leaving directory/tmp/fakesu-mosquitto-cN5z/mosquitto-1.3.1/lib' make: *\ [mosquitto] Error 2 mosquitto installed cp: cannot stat `/app/tmp/cache/.tools/mosquitto/bin/mosquitto': No such file or directory

Reply to this email directly or view it on GitHubhttps://github.com/xively/mosquitto/issues/13#issuecomment-44191417 .