Hello Mark,
Indeed I made an error when I wrote the problem statement, maAppWarFile.war is
in fact unpacked to "my/path/to/Tomcat/webapps/my-app/," not the conf folder.
Philippe
From: Mark Thomas <[email protected]>
To: Tomcat Users List <[email protected]>
Sent: Wednesday, October 14, 2015 4:49 AM
Subject: Re: Unable to deploy app with Tomcat Manager Text interface using a
Context Descriptor
On 13/10/2015 16:31, ptruche wrote:
> Sorry about the formatting issue. Here is the corrected
> version.-------------------------------------------------------------------------------
>
> My application context is defined as an XML file located in
> `my/path/to/Tomcat/conf/Catalina/localhost/my-app.xml`.
>
> <Context docBase='/my/path/to/myApp/myAppWarFile.war'>
> <Environment name='my_config_dir' value='/my/path/to/myApp'
>type='java.lang.String'/>
> </Context>
>
> `/my/path/to/myApp` contains the WAR file myAppWarFile.war and a number of
> externalized properties that are read by Spring.
>
> Tomcat is configured with autoDeploy turned off. When I start Tomcat, it
> creates `my/path/to/Tomcat/conf/webapps/my-app/` and the WAR file gets
> unpacked into this location as expected, and the application of course can
> run as expected.
That is an odd looking location for the WAR to be unpacked to. I'd
expect "my/path/to/Tomcat/webapps/my-app/"
> When I want to deploy a new version without restarting Tomcat, I run the
> undeploy command as follows:
>
> curl http://localhost:8080/manager/text/undeploy?path=/my-app --user
>my-username:my-password
Note: Undeploy removes the xml from
"my/path/to/Tomcat/conf/Catalina/localhost/my-app.xml"
> ... and that works. But when I instruct Tomcat to deploy with the following
> curl statement, I get a failure.
>
> curl
>http://localhost:8080/manager/text/deploy?config=file:/my/path/to/Tomcat/conf/Catalina/localhost/my-app.xml
> --user my-username:my-password
> # Tomcat response
> FAIL - Invalid context path null was specified
>
> Adding the path does not help much, I still get a failure.
>
> curl
>http://localhost:8080/manager/text/deploy?config=file:/my/path/to/Tomcat/conf/Catalina/localhost/my-app.xml\&path=/my-app
> --user my-username:my-password
>
> # Tomcat response
> FAIL - Failed to deploy application at context path /my-app
Those are expected since the context.xml no longer exists. Better error
messages would be nice in those cases. Patches welcome.
> The worst part is that tailing catalina.out does not yield any insight. And
> on top of that, Tomcat deletes the application context XML file
> `my/path/to/Tomcat/conf/Catalina/localhost/my-app.xml`!
>
> Naturally I have reviewed Tomcat documentation
> (https://tomcat.apache.org/tomcat-8.0-doc/manager-howto.html#Deploy_using_a_Context_configuration_%22.xml%22_file)
> and I have googled all day to figure this out, but I have not found anything
> that can help me with this particular configuration.
This page might also be useful:
http://tomcat.apache.org/tomcat-7.0-doc/config/automatic-deployment.html
> It feels as though the choice is:
>
> 1. Tomcat with autoDeploy on (not recommended for production) in which case
>simply dropping the new WAR to `/my/path/to/myApp/` will cause Tomcat to hot
>deploy the app.
There are reasons not to enable autoDeploy in production (mainly
security) but I wouldn't go as far as to say you should never use
autoDeploy in production.
> 2. Tomcat with autoDeploy off, but re-deploying requires a Tomcat restart
>because the deploy API does not seem to be working as advertised.
>
> Has anybody made this work with this configuration?
If you want to do this with autoDeploy disabled, I think what you need
to do is:
- Update the external WAR file. Tomcat should ignore this since
autoDeploy is disabled.
- Then, without undeploying the old version, trigger a redeployment via
the Manager using the same curl command as the original deployment but
include the update=true
HTH,
Mark
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