The information in this doc is based on Juju version 3.5.6, and may not accurately reflect other versions of Juju.
See also: unexpose
Summary
Makes an application publicly available over the network.
Usage
juju expose [options] <application name>
Options
| Flag | Default | Usage |
|---|---|---|
-B, --no-browser-login |
false | Do not use web browser for authentication |
--endpoints |
Expose only the ports that charms have opened for this comma-delimited list of endpoints | |
-m, --model |
Model to operate in. Accepts [<controller name>:]<model name>|<model UUID> | |
--to-cidrs |
A comma-delimited list of CIDRs that should be able to access the application ports once exposed | |
--to-spaces |
A comma-delimited list of spaces that should be able to access the application ports once exposed |
Examples
To expose an application:
juju expose apache2
To expose an application to one or multiple spaces:
juju expose apache2 --to-spaces public
To expose an application to one or multiple endpoints:
juju expose apache2 --endpoints logs
To expose an application to one or multiple CIDRs:
juju expose apache2 --to-cidrs 10.0.0.0/24
Details
Adjusts the firewall rules and any relevant security mechanisms of the cloud to allow public access to the application.
If no additional options are specified, the command will, by default, allow access from 0.0.0.0/0 to all ports opened by the application. For example, to expose all ports opened by apache2, you can run:
juju expose apache2
The --endpoints option may be used to restrict the effect of this command to the list of ports opened for a comma-delimited list of endpoints. For instance, to only expose the ports opened by apache2 for the “www” endpoint, you can run:
juju expose apache2 --endpoints www
To make the selected set of ports accessible by specific CIDRs, the --to-cidrs option may be used with a comma-delimited list of CIDR values. For example:
juju expose apache2 --to-cidrs 10.0.0.0/24,192.168.1.0/24
To make the selected set of ports accessible by specific spaces, the --to-spaces option may be used with a comma-delimited list of space names. For example:
juju expose apache2 --to-spaces public
All of the above options can be combined together. In addition, multiple “juju expose” invocations can be used to specify granular expose rules for different endpoints. For example, to allow access to all opened apache ports from 0.0.0.0/0 but restrict access to any port opened for the “logs” endpoint to CIDR 10.0.0.0/24 you can run:
juju expose apache2 juju expose apache2 --endpoints logs --to-cidrs 10.0.0.0/24
Each “juju expose” invocation always overwrites any previous expose rule for the same endpoint name. For example, running the following commands instruct juju to only allow access to ports opened for the “logs” endpoint from CIDR 192.168.0.0/24.
juju expose apache2 --endpoints logs --to-cidrs 10.0.0.0/24 juju expose apache2 --endpoints logs --to-cidrs 192.168.0.0/24