Erlang wrapper around Libcloud.
It was tested with the 4da5771708b185725f26e60287e554b0416e8030 commit of the hcs42/libcloud.
Install Python 3. It is recommended to use virtualenv.
Install Libcloud:
$ git clone https://github.com/hcs42/libcloud.git
$ git checkout 4da5771708b185725f26e60287e554b0416e8030
$ cd libcloud
$ pip install -e .
When starting your Erlang node, make sure that the first python3 executable in
the PATH is the same as the one that has Libcloud installed.
Clone elibcloud and start it from the shell:
$ git clone https://github.com/hcs42/elibcloud.git
$ cd elibcloud
$ make
$ erl -pa ../elibcloud/ebin -pa deps/goldrush/ebin -pa deps/jsx/ebin -pa deps/lager/ebin
> application:start(syntax_tools).
> application:start(compiler).
> application:start(goldrush).
> application:start(lager).
Try elibcloud with a DUMMY provider, which will print the details of a dummy node:
1> {ok, Cred} = elibcloud:create_credentials(
_Provider = "DUMMY",
_UserName = "something",
_Password = "something").
{ok,[{<<"provider">>,<<"DUMMY">>},
{<<"userName">>,<<"something">>},
{<<"password">>,<<"something">>},
{<<"extra">>,[{}]}]}
2> elibcloud:list_nodes(Cred).
{ok,[[{<<"state">>,<<"RUNNING">>},
{<<"image">>,null},
{<<"public_ips">>,[<<"127.0.0.1">>]},
{<<"size">>,null},
{<<"id">>,<<"1">>},
{<<"private_ips">>,[]},
{<<"extra">>,[{<<"foo">>,<<"bar">>}]},
{<<"name">>,<<"dummy-1">>}],
[{<<"state">>,<<"RUNNING">>},
{<<"image">>,null},
{<<"public_ips">>,[<<"127.0.0.1">>]},
{<<"size">>,null},
{<<"id">>,<<"2">>},
{<<"private_ips">>,[]},
{<<"extra">>,[{<<"foo">>,<<"bar">>}]},
{<<"name">>,<<"dummy-2">>}]]}
For using elibcloud in a project, you can add it as a rebar dependency.
To use elibcloud, first you need to create a "credentials" term which contains the details of your provider and account.
When you call a function that performs that operation, you then always pass the
credentials term (e.g. by invoking list_nodes(Cred)).
Creating Amazon EC2 credentials:
{ok, Cred} = elibcloud:create_credentials(
_Provider = "EC2",
_UserName = "My_Access_Key_ID",
_Password = "My_Secret_Access_Key")
- Replace
My_Access_Key_IDandMy_Secret_Access_Keywith the API key and API code generated on the Amazon EC2 web dashboard: click on your user name, select Security Credentials, open Access Keys and use the keys there (or generate new ones).
Creating HP Cloud credentials:
{ok, Cred} = elibcloud:create_credentials(
_Provider = "OPENSTACK_HP",
_UserName = "My_username",
_Password = "My_password",
_Extra = [{<<"ex_force_auth_url">>, <<"https://region-a.geo-1.identity.hpcloudsvc.com:35357/v2.0/tokens">>},
{<<"ex_force_auth_version">>, <<"2.0_password">>},
{<<"ex_tenant_name">>, <<"My_project_name">>},
{<<"ex_force_service_name">>, <<"Compute">>},
{<<"ex_force_service_region">>, <<"region-b.geo-1">>}]);
- Replace
My_project_namewith the number in the URL after you log in to the HP Cloud dashboard.
Creating Rackspace credentials using the general OPENSTACK provider of Libcloud:
{ok, Cred} = elibcloud:create_credentials(
_Provider = "OPENSTACK_RACKSPACE",
_UserName = "My_username",
_Password = "My_password",
_Extra = [{<<"ex_force_auth_url">>, <<"https://lon.identity.api.rackspacecloud.com/v2.0/tokens">>},
{<<"ex_force_auth_version">>, <<"2.0_password">>},
{<<"ex_tenant_name">>, <<"My_tenant_name">>},
{<<"ex_force_service_name">>, <<"cloudServersOpenStack">>},
{<<"ex_force_service_region">>, <<"LON">>}]);
- Replace
My_tenant_namewith the number in the URL after you log in to the Rackspace dashboard.
Creating Rackspace credentials using the RACKSPACE provider of Libcloud:
{ok, Cred} = elibcloud:create_credentials(
_Provider = "RACKSPACE",
_UserName = "My_username",
_Password = "My_password",
_Extra = [{<<"region">>, <<"lon">>}]).
See the edoc documentation of the exported functions in src/elibcloud.erl for reference.
Supported providers:
- Amazon EC2
- HP Cloud
- Rackspace
Nodes:
- List nodes
- Get node
- Create node (i.e. provision a virtual machine instance)
- Destroy node
Key pairs:
- Get key pair
- Import key pair from string/file
- Delete key pair
Security groups:
- List security groups
- Create a security group
- Delete a security group
- Create security rules
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