On 27/03/2025 14:54, William Crowell wrote:
Sebastian,
Thanks for your reply. I did know about environment variables. I would be
concerned about someone doing a “ps -ef” on the box and getting the password
from the command line arguments. I will keep looking.
Write a small class that implements IntrospectionUtils.PropertySource
and reads your property file.
Configure as per:
https://tomcat.apache.org/tomcat-11.0-doc/config/systemprops.html#Property_replacements
Might be sufficiently generally useful to add to the other
implementations in org.apache.tomcat.util.digester
Note that catalina.properties is read and the properties are added as
system properties. The SystemPropertySource then finds them for the
Digester.
Mark
Regards,
William Crowell
From: Sebastian Trost <m...@sebastiantrost.de.INVALID>
Date: Thursday, March 27, 2025 at 9:53 AM
To: users@tomcat.apache.org <users@tomcat.apache.org>
Subject: Re: Additional Property File For Substitution Variables
William,
On 27.03.2025 14:39, William Crowell wrote:
Is there a way to add an additional properties file to the startup of Apache
Tomcat, so that server.xml and context.xml can reference the values like we do
with catalina.properties?
For instance:
application.properties:
my.user=foo
my.password=bar
context.xml:
…
<Resource … " type="javax.sql.DataSource" … username="${my.user}"
password="${my.password}” …
/>
…
[...]
You can use environment variables (and setenv.sh/.bat). Example:
Set your environment variable:
> export USER_NAME=user1
Modify / create setenv.sh:
JAVA_OPTS=-Dcustom_user_name=${USER_NAME}
Modify your context.xml:
[...] <Resource … " type="javax.sql.DataSource" …
username="${custom_user_name}" [...]
I didn't test it, but it should work like this.
Reference:
https://nam12.safelinks.protection.outlook.com/?url=https%3A%2F%2Fstackoverflow.com%2Fquestions%2F44761831%2Ftomcat-8-context-xml-use-environment-variable-in-datasource&data=05%7C02%7CWCrowell%40perforce.com%7Ce2e937739a6740052d3608dd6d36b2e1%7C95b666d19a7549ab95a38969fbcdc08c%7C0%7C0%7C638786803907292634%7CUnknown%7CTWFpbGZsb3d8eyJFbXB0eU1hcGkiOnRydWUsIlYiOiIwLjAuMDAwMCIsIlAiOiJXaW4zMiIsIkFOIjoiTWFpbCIsIldUIjoyfQ%3D%3D%7C0%7C%7C%7C&sdata=WSI4V4Kpep8wXy295CZ%2BeNseW7a1Scd9%2B5dc3YYKf9k%3D&reserved=0<https://stackoverflow.com/questions/44761831/tomcat-8-context-xml-use-environment-variable-in-datasource>
Sebastian
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