A path to the file is constructed by merely adding a URI to the value of the root directive. If a URI has to be modified, the alias directive should be used
| Syntax: | alias |
|---|---|
| Default: | — |
| Context: | location |
Defines a replacement for the specified location. For example, with the following configuration
location /i/ {
alias /data/w3/images/;
}
on request of “/i/top.gif”, the file /data/w3/images/top.gif will be sent.
The path value can contain variables, except $document_root and $realpath_root.
If alias is used inside a location defined with a regular expression then such regular expression should contain captures and alias should refer to these captures (0.7.40), for example:
location ~ ^/users/(.+\.(?:gif|jpe?g|png))$ {
alias /data/w3/images/$1;
}
When location matches the last part of the directive’s value:
location /images/ {
alias /data/w3/images/;
}
it is better to use the root directive instead:
location /images/ {
root /data/w3;
}