[jira] [Created] (GUACAMOLE-32) Extended variable support in guacamole-docker image for linked databases

["Michael Jumper (JIRA)" <ji...@apache.org>]

Michael Jumper created GUACAMOLE-32:
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             Summary: Extended variable support in guacamole-docker image for linked databases
                 Key: GUACAMOLE-32
                 URL: https://issues.apache.org/jira/browse/GUACAMOLE-32
             Project: Guacamole
          Issue Type: Improvement
            Reporter: Michael Jumper
            Priority: Minor


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*The description of this issue was copied from [GUAC-1545|https://glyptodon.org/jira/browse/GUAC-1545], an issue in the JIRA instance used by the Guacamole project prior to its acceptance into the Apache Incubator.*

Comments, attachments, related issues, and history from prior to acceptance *have not been copied* and can be found instead at the original issue.
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The current Guacamole Docker image has some issues related to environment variables:
# The link environmental variables, like {{MYSQL_PORT_3306_TCP_ADDR}}, are deprecated (see the [link environment variables reference|https://docs.docker.com/compose/link-env-deprecated/]). The name of the service, or alias, should be used to connect instead.
# The current docker image is not leveraging all of the environmental variables of the linked database container. (e.g. {{MYSQL_ENV_MYSQL_USER}})
# The current name of the environmental variables {{MYSQL_PORT}} and {{POSTGRES_PORT}} are not the best choice, because they are also used by Docker (though deprecated) for specifying the full connection URL to the linked container. e.g. {{tcp://172.17.0.5:5432}}

I've created a pull request implementing the following changes:

- Adding support for leveraging {{MYSQL_ENV_MYSQL_USER}}, {{MYSQL_ENV_MYSQL_PASSWORD}}, {{MYSQL_ENV_MYSQL_DATABASE}} and {{MYSQL_ENV_MYSQL_ROOT_PASSWORD}} for linked
- Removed deprecated environmental variables {{MYSQL_NAME}}, {{MYSQL_PORT_3306_TCP_ADDR}} and {{MYSQL_PORT_3306_TCP_PORT}}
- Adding support for leveraging {{POSTGRES_ENV_POSTGRES_USER}}, {{POSTGRES_ENV_POSTGRES_PASSWORD}} and {{POSTGRES_ENV_POSTGRES_DB}} for linked
- Removed deprecated environmental variables {{POSTGRES_NAME}}, {{POSTGRES_PORT_5432_TCP_ADDR}} and {{POSTGRES_PORT_5432_TCP_PORT}}

The modified branch can be found here:

https://github.com/vchrisb/guacamole-docker/tree/linked-db-envs

The modified Docker image is {{vchrisb/guacamole:linked-db-envs}}



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