应用程序环境设置不正确LAMP Azure Cloud

Question

I have installed my PHP based application on a lamp server in azure cloud. I used the codes getenv('something'); to use environment variables for the application. I tried it on my local host and on heroku and both place it seems to work fine.

I have added the environment variables on my linux server in azure cloud at /etc/environment and when when I use the command printenv I can see all my environment listed there, for example like this login_username = root and so on..

I rebooted the server, apache2 server but no luck.

I am not sure how to see any errors or see which environment variable is not working or if anyone of them is working or not. I googled alot of things online and it says you can do it from the azure dashboard but I had no luck with that as well.

So basically the only thing I am getting displayed right now is The application environment is not set correctly.

Answer 1

I successfully reproduced your issue, in my scenario, if directly execute php command in terminal php getenv.php , we can successfully get the environment variables. So it could be the problem of apache.

If we dive into the apache2's script at /etc/init.d/apache2 , we can find the following section:

ENV="env -i LANG=C PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin"
if [ "$APACHE_CONFDIR" != /etc/apache2 ] ; then
        ENV="$ENV APACHE_CONFDIR=$APACHE_CONFDIR"
fi
if [ "$APACHE_ENVVARS" != "$APACHE_CONFDIR/envvars" ] ; then
        ENV="$ENV APACHE_ENVVARS=$APACHE_ENVVARS"
fi

So the ENV variable is overwritten, and we need to set the variables in /etc/apache2/envvars .

Following is my solution, set variables in /etc/environment :

export VAR="FOO"

And then add the following text section in /etc/apache2/envvars :

if [ -f /etc/environment ]; then
  . /etc/environment
fi

At last restart the apache.

Any further concern, please feel free to let me know.