[erlang-questions] Node Crash for inets config 'SocketType ssl'

[Ingela Andin]

Hi!

Did you start the ssl application?

Regards Ingela Erlang/OTP Team - Ericsson AB




2018-07-10 8:21 GMT+02:00 Prakash Parmar <prakash.parmar@REDACTED>:

> Hello,
>
>
> I have a web-server based on inets otp application and running completely
> fine over 'http' in order to support 'https' I have changed inets
> configuration
>
> as per the sample configuration located at Erlang's repo [1].
>
>
> Here are the config file snippet I had changed/added,
>
> ...
> SocketType ssl
> SSLCertificateFile      {{install_dir}}/config/www/certs/server.pem
> SSLCertificateKeyFile   {{install_dir}}/config/www/certs/server.pem
> SSLVerifyClient 0
> ...
>
> I have also generated certificate files[2] and kept it in above mentioned
> path.
>
> unfortunately node is crashing at startup and following logs is printed on
> shell.
>
> =CRASH REPORT==== 9-Jul-2018::12:13:50 ===
>   crasher:
>     initial call: application_master:init/4
>     pid: <0.902.0>
>     registered_name: []
>     exception exit: {{shutdown,
>                       {failed_to_start_child,httpd_sup,
>                        {shutdown,
>                         {failed_to_start_child,
>                          {httpd_instance_sup,any,8881,default},
>                          {shutdown,
>                           {failed_to_start_child,
>                            {httpd_acceptor_sup,any,8881,default},
>                            {shutdown,
>                             {failed_to_start_child,
>                              {httpd_acceptor_sup,any,8881,default},
>                              {'EXIT',
>                               {function_clause,
>                                [{http_transport,start,
>                                  [ssl],
>                                  [{file,"http_transport.erl"},{line,54}]},
>                                 {httpd_acceptor,do_socket_start,1,
>                                  [{file,"httpd_acceptor.erl"},
> {line,101}]},
>                                 {httpd_acceptor,do_init,4,
>                                  [{file,"httpd_acceptor.erl"},{line,94}]},
>                                 {httpd_acceptor,acceptor_init,8,
>                                  [{file,"httpd_acceptor.erl"},{line,82}]},
>                                 {proc_lib,init_p_do_apply,3,
>                                  [{file,"proc_lib.erl"},
>                                   {line,247}]}]}}}}}}}}}},
>                      {inets_app,start,[normal,[]]}}
>       in function  application_master:init/4 (application_master.erl, line
> 134)
>     ancestors: [<0.901.0>]
>     messages: [{'EXIT',<0.903.0>,normal}]
>     links: [<0.901.0>,<0.739.0>]
>     dictionary: []
>     trap_exit: true
>     status: running
>     heap_size: 987
>     stack_size: 27
>     reductions: 166
>   neighbours:
>
>
>
> Does anyone know what might be the problem ?
>
> I have looked into 'http_transport' module's code and it seems that
> start/1 function[3] is not accepting 'ssl' atom as an arity,
> Arity for this function is like {ssl, <Certificate_file_path>}. Any idea
> on this ? Did I missed anything ?
>
> / cheers,
> Prakash Parmar
>
>
>
> Reference,
> [1] https://github.com/erlang/otp/blob/master/lib/inets/
> examples/server_root/conf/ssl.conf
>      https://github.com/erlang/otp/blob/master/lib/inets/
> examples/server_root/conf/httpd.conf
>
> [2] https://devcenter.heroku.com/articles/ssl-certificate-self
>      https://stackoverflow.com/questions/991758/how-to-get-
> pem-file-from-key-and-crt-files
>
> [3] https://github.com/erlang/otp/blob/177a3470d598c892e0b7251cd2d921
> 9aebcd3747/lib/inets/src/http_lib/http_transport.erl#L54
>
>
>
>
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