AKENEO : Permission snappy

locos973 2018-10-11 08:14:20 UTC #1

Keywords: Akeneo - Amazon Web Services - Technical issue - Permissions
Description:
Hi,
I install "Eikona PDF generator bundle", I create a button to lunch generate PDF but I have this error =>
"[2018-10-11 01:06:50] snappy.ERROR: An error happened while generating "/opt/bitnami/apps/akeneo/htdocs/var/cache/prod/snappy/knp_snappy5bbf049a388c07.26433253.pdf".
{"command":"/usr/sbin/wkhtmltopdf --lowquality --margin-bottom '0' --margin-left '0' --margin-right '0' $
[2018-10-11 01:06:50] request.CRITICAL: Uncaught PHP Exception RuntimeException: "The exit status code '126' says something went wrong: stderr: "sh: 1: /usr/sbin/wkhtmltopdf: Permission denied " stdout: "" command:
/usr/sbin/wkhtmltopdf --lowquality --margin-bottom '0' $"

I check this topic => https://docs.bitnami.com/bch//how-to/troubleshoot-permission-issues/
it's not work for my case....
Exit Status code 126 -> Permission denied
What is the good way to set a permission to authorize snappy write in 'cache/prod/snappy'

thanks

jota 2018-10-11 13:21:24 UTC #2

Hi @locos973,

The plugin seems to be creating a pdf file but it doesn't have proper permissions to write that file. Could you please ask the developers of the plugin the folder the plugin uses to generate the pdf so we can help you configuring the permissions in the installation? That information is not included in the error message you shared.

Thanks

locos973 2018-10-11 13:37:11 UTC #3

Hi @jota

error :
snappy.ERROR: An error happened while generating "/opt/bitnami/apps/akeneo/htdocs/var/cache/prod/snappy/knp_snappy5bbf104429ba95.50340253.pdf".
{"command":"/usr/sbin/wkhtmltopdf --lowquality --margin-bottom '0' --margin-left '0' --margin-right '0' --margin-top '0' cover
'/opt/bitnami/apps/akeneo/htdocs/var/cache/prod/snappy/knp_snappy5bbf104429bc76.71052602.html'
'/opt/bitnami/apps/akeneo/htdocs/var/cache/prod/snappy/knp_snappy5bbf104429b527.86430556.html'
'/opt/bitnami/apps/akeneo/htdocs/var/cache/prod/snnappy/knp_snappy5bbf104429ba95.50340253.pdf'","status":126,"stdout":"","stderr":"sh: 1: /usr/sbin/wkhtmltopdf: Permission denied\n"} []
request.CRITICAL: Uncaught PHP Exception RuntimeException: "The exit status code '126' says something went wrong: stderr:
"sh: 1: /usr/sbin/wkhtmltopdf: Permission denied "
stdout: "" command: /usr/sbin/wkhtmltopdf --lowquality --margin-bottom '0' --margin-left '0' --margin-right '0' --margin-top '0' cover
'/opt/bitnami/apps/akeneo/htdocs/var/cache/prod/snappy/knp_snappy5bbf104429bc76.71052602.html'
'/opt/bitnami/apps/akeneo/htdocs/var/cache/prod/snappy/knp_snappy5bbf104429b527.86430556.html'
'/opt/bitnami/apps/akeneo/htdocs/var/cache/prod/snappy/knp_snappy5bbf104429ba95.50340253.pdf'."
at /opt/bitnami/apps/akeneo/htdocs/vendor/knplabs/knp-snappy/src/Knp/Snappy/AbstractGenerator.php line 378

I didn't ask developer of this module but I thinks it's in '/var/cache/prod/snappy'.
thanks

tomasp 2018-10-12 08:03:11 UTC #4

Hello @locos973,

Can you try this command to set the owner of the files to bitnami:daemon ?

sudo chown -R bitnami:daemon /opt/bitnami/apps/akeneo/htdocs/var/cache/prod/snappy

Florent 2018-10-12 08:18:52 UTC #5

Hello @tomasp,

I'm the co-worker of @locos973 and he's not working today.
So I tried your solution in this way :
- I removed all the folders/files inside the var folder.
- I re-created the logs/cache folder
- I regive the 755 permissions to these folders
- I regive the own permission (bitnami:daemon)
- I try to generate a PDF, but don't work, that's normal, and it create the snappy folder.
- Now, I use the command you gave me and I've an other error :
Uncaught PHP Exception RuntimeException: "Unable to write in directory: /opt/bitnami/apps/akeneo/htdocs/var/cache/prod/snappy "

tomasp 2018-10-12 10:04:49 UTC #6

Hi @Florent,

Try with this other command too. Maybe setting the owner was not enough and we also need to give write permissions to that folder:

sudo chmod ug+w /opt/bitnami/apps/akeneo/htdocs/var/cache/prod/snappy

Also, run this command and paste here the output:

sudo ls -alrth /opt/bitnami/apps/akeneo/htdocs/var/cache/prod/snappy

Florent 2018-10-12 10:59:24 UTC #7

Hi,

I cleaned again like before, and do your previous command and this two :
The ls give me this :

    bitnami@ip-172-31-13-198:~/apps/akeneo/htdocs$ sudo ls -alrth 
    /opt/bitnami/apps/akeneo/htdocs/var/cache/prod/snappy
    total 8.0K
    drwxr-xr-x 11 daemon  daemon 4.0K Oct 12 10:54 ..
    drwxrwxr-x  2 bitnami daemon 4.0K Oct 12 10:54 .

And I'm afraid than your command will not be enough in case of the cache is clear, I'll need to do this each time ?
Which script I'll need to update to apply this commands ?

Thanks for your help

Florent 2018-10-12 11:01:55 UTC #8

I forgot to tell you when I tried to generate the PDF.
It's gave me the same error as the beginning

Florent 2018-10-12 14:38:44 UTC #9

I search a lot to see where is the problem, and it was not a success.
I tried to change the tempory folder of wkhtmltopdf, but have no effect (same with permission).
So now, I'm asking myself :
- Which user is executing the command ? Why he's restricted ?
- The problem is maybe from the bin folder of wkhtmltopdf, I put it in the /usr/sbin/wkhtmltopdf.

I got the wkhtmltopdf from the vendor of the bundle.
Let me know if you need more information.

I hope we'll can solve the problem
Thank you guys

tomasp 2018-10-15 11:23:12 UTC #10

It is a very strange permission error as it seems to be properly configured. At least for the bitnami and daemon users.

How do your trigger the PDF generation? Is it with a script, a cron job, manually from the web page?

I would also try to give also write permission to others, just to discard is not really a permission issue.

sudo chmod ugo+w /opt/bitnami/apps/akeneo/htdocs/var/cache/prod/snappy

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