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certbot-auto: Print link to doc on debugging pip install error [revision requested] (#3473)

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* certbot-auto: Print link to doc on debugging pip install error

Also, update the doc to teach the user to workaround problem on a low
memory system.

* Correct formatting

* grep the PIP_OUT and print useful info if the problem is about memory allocation

* Fix logic on string to grep
This commit is contained in:
Timothy Guan-tin Chien
2016-12-05 18:49:38 -08:00
committed by Peter Eckersley
parent feef1b411b
commit 3dbf5c9fcb
2 changed files with 38 additions and 0 deletions
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docs/install.rst
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@@ -73,6 +73,23 @@ For full command line help, you can type::
./certbot-auto --help all
Problems with Python virtual environment
----------------------------------------
On a low memory system such as VPS with only 256MB of RAM, the required dependencies of Certbot will failed to build.
This can be identified if the pip outputs contains something like ``internal compiler error: Killed (program cc1)``.
You can workaround this restriction by creating a temporary swapfile::
user@webserver:~$ sudo fallocate -l 1G /tmp/swapfile
user@webserver:~$ sudo chmod 600 /tmp/swapfile
user@webserver:~$ sudo mkswap /tmp/swapfile
user@webserver:~$ sudo swapon /tmp/swapfile
Disable and remove the swapfile once the virtual enviroment is constructed::
user@webserver:~$ sudo swapoff /tmp/swapfile
user@webserver:~$ sudo rm /tmp/swapfile
Running with Docker
-------------------