Hello Juju

juju deploy hello-juju

19.04 18.10 18.04 LTS

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Overview

This charm is intended to be used with Juju's Getting Started documentation.

Usage

Deploying hello-juju:

juju deploy hello-juju
juju expose hello-juju

You can now access the application by connecting to the unit's public address field from the juju status output:

juju status
> ...
> App         Version  Status  Scale  Charm       Store  Rev  OS      Notes
> hello-juju           active      1  hello-juju  local    0  ubuntu  exposed
>
> Unit           Workload  Agent  Machine  Public address  Ports   Message
> hello-juju/0*  active    idle   0        <ip-address>    80/tcp  
>
> Machine  State    DNS           Inst id        Series  AZ  Message
> 0        started  <ip-address>  <instance-id>  bionic      Running

Now from another computer, you'll be able to make HTTP requests to it.

curl <ip-address>
> Hello Juju!

If you don't have curl, open your browser at <ip-address>.
The charm also installs curl on hello-juju/0, so you could try that too.

juju ssh hello-juju/0
> ubuntu@<instance-id>:~$

curl localhost
> Hello Juju!

Endpoints supported

  • /: returns the plain text string Hello Juju!\r\n\r\n
  • /greetings: returns a JSON object with a count of the greetings that have been sent, e.g. {"greetings": 1}

Relating to other charms

Changing databases via pgsql

By default, hello-juju uses a SQLite database. When related to a charm that provides the pgsql relation, hello-juju will store its data there.

juju deploy postgresql
juju relate postgresql:db hello-juju 

Scaling out

This charm is not able to be used with multiple units.

Project Information

hello-juju charm is maintained by Canonical. Please create a post in our Discourse forum if you encounter any issues.