How can I configure multiple deployment environments for juju? [closed]

I want to be able to deploy charms both locally and to EC2. What's an example environments.yaml that has both entries?

And how can I switch between them so I can just deploy to EC2 and/or LXC?

You can have as many environments as you want in .juju/environments.yaml , and then set one as the default. Here is my sanitised environments.yaml with ec2, a private openstack cloud, and my local machine:

default: sample
environments:
  sample:
    type: ec2
    control-bucket: juju-XXXXXXXXXXXXXXXXXXXXXXXXXXXX
    admin-secret: YYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYY
    secret-key: ZZZZZZZZZZZZZZZZZZZZZZZZZZ/2222222222
    access-key: 0123456789ABCDEF
    default-series: precise
  openstack:
    type: ec2
    default-instance-type: m1.small
    control-bucket: juju-XXXXXXXXXXXXXXXXXXXXXXXXXXXX
    admin-secret: YYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYY
    ec2-uri: http://my.private.cloud:8773/services/Cloud
    s3-uri: http://my.private.s3:3333
    default-image-id: ami-000000ab
    access-key: random-uuid-follows-1fc1f05e-1c37-4594-8e5e:me_project
    secret-key: 4a75192b-2478-4acf-a6e8-aa60bbaf1e28
    default-series: precise
  local:
    type: local
    default-series: precise
    data-dir: /home/clint/.juju/data
    admin-secret: 3d909951d4984b92963f1186c4b6cb16
    control-bucket: foo
  customer-one:
    type: ec2
    control-bucket: juju-XXXXXXXXXXXXXXXXXXXXXXXXXXXX
    admin-secret: YYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYY
    secret-key: ZZZZZZZZZZZZZZZZZZZZZZZZZZ/2222222222
    access-key: 0123456789ABCDEF
    default-series: precise
  customer-two:
    type: ec2
    control-bucket: juju-XXXXXXXXXXXXXXXXXXXXXXXXXXXX
    admin-secret: YYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYY
    secret-key: ZZZZZZZZZZZZZZZZZZZZZZZZZZ/2222222222
    access-key: 0123456789ABCDEF
    default-series: precise

I can select the environment by appending the '--environment' or '-e' argument to any juju command, so

juju status -e customer-one

Returns different things than just

juju status

Also each environment has different configuration options depending on the provider, see the following sections of the juju documentation:

https://juju.ubuntu.com/docs/provider-configuration-ec2.html
https://juju.ubuntu.com/docs/provider-configuration-local.html
https://juju.ubuntu.com/docs/provider-configuration-openstack.html

How can I configure multiple deployment environments for juju? [closed]

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