Replace 'AWS_' with 'NIFCLOUD_'

[aokumasan]

Summary

• AWS_ (aws_) -> NIFCLOUD_ (nifcloud_)

Tests

• using SDK with hard-coded credentials

from nifcloud import session

client = session.get_session().create_client(
    "computing",
    region_name="jp-east-1",
    nifcloud_access_key_id="<Your NIFCLOUD Access Key ID>",
    nifcloud_secret_access_key="<Your NIFCLOUD Secret Access Key>"
)

print(client.describe_instances())

• read credential values from environment variable.

from nifcloud import session

client = session.get_session().create_client(
    "computing",
)

print(client.describe_instances())

$ export NIFCLOUD_ACCESS_KEY_ID=<Your NIFCLOUD Access Key ID>
$ export NIFCLOUD_SECRET_ACCESS_KEY=<Your NIFCLOUD Secret Access Key>
$ export NIFCLOUD_DEFAULT_REGION=jp-east-1
$ python test.py

• using CLI with environment variable

$ export NIFCLOUD_ACCESS_KEY_ID=<Your NIFCLOUD Access Key ID>
$ export NIFCLOUD_SECRET_ACCESS_KEY=<Your NIFCLOUD Secret Access Key>
$ export NIFCLOUD_DEFAULT_REGION=jp-east-1

$ nifcloud-debugcli computing describe-instances

• using CLI with credential file

$ cat ~/.nifcloud/credentials
$ cat ~/.nifcloud/config
$ export NIFCLOUD_DEFAULT_PROFILE=<Your profile name>

# cleanup environment variables
$ export NIFCLOUD_ACCESS_KEY_ID=
$ export NIFCLOUD_SECRET_ACCESS_KEY=
$ export NIFCLOUD_DEFAULT_REGION=

$ nifcloud-debugcli computing describe-instances

[o108minmin]

lgtm