configuring dev and prod datasource in liberty dynamically to load based on the environment

Question

I am running java batch(jsr352) using liberty server. The datasource configured in server.xml. I would like to load server.xml based on the region(like dev, sit, prod). How can I pass arguments to start liberty server and load the datasource dynamically There could be possiblity with server.env file and bootstrap.properties. since new to this.. can anyone help on this.

Answer 1

An easy way to do this is to use variables in your server.xml like this:

<dataSource jndiName="jdbc/db2">
    <jdbcDriver libraryRef="DB2JCCLib"/>
    <properties.db2.jcc databaseName="${evn.db2_name}" 
                        serverName="${env.db2_server}" 
                        portNumber="${env.db2_port}"/>
</dataSource>

Then, you could can set the variables in your server.env like this:

db2_name=mydb
db2_server=whatever.com
db2_port=50000

Alternatively, if you use any sort of scripting to start your Liberty servers, you can export them in the bash env like this:

$ export db2_name=mydb
$ etc...
$ wlp/bin/server start myServer