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# gce_lb – create/destroy GCE load-balancer resources

- Synopsis

- Requirements

- Parameters

- Examples

- Status

## Synopsis

- This module can create and destroy Google Compute Engine `loadbalancer` and `httphealthcheck` resources. The primary LB resource is the `load_balancer` resource and the health check parameters are all prefixed with httphealthcheck. The full documentation for Google Compute Engine load balancing is at https://developers.google.com/compute/docs/load-balancing/. However, the ansible module simplifies the configuration by following the libcloud model. Full install/configuration instructions for the gce* modules can be found in the comments of ansible/test/gce_tests.py.

## Requirements

The below requirements are needed on the host that executes this module.

- python >= 2.6

- apache-libcloud >= 0.13.3, >= 0.17.0 if using JSON credentials

## Parameters

Parameter | Choices/Defaults | Comments
--- | --- | ---
credentials_file - |  | path to the JSON file associated with the service account email
external_ip - |  | the external static IPv4 (or auto-assigned) address for the LB
httphealthcheck_healthy_count - | Default: 2 | number of consecutive successful checks before marking a node healthy
httphealthcheck_host - |  | host header to pass through on HTTP check requests
httphealthcheck_interval - | Default: 5 | the duration in seconds between each health check request
httphealthcheck_name - |  | the name identifier for the HTTP health check
httphealthcheck_path - | Default: "/" | the url path to use for HTTP health checking
httphealthcheck_port - | Default: 80 | the TCP port to use for HTTP health checking
httphealthcheck_timeout - | Default: 5 | the timeout in seconds before a request is considered a failed check
httphealthcheck_unhealthy_count - | Default: 2 | number of consecutive failed checks before marking a node unhealthy
members - |  | a list of zone/nodename pairs, e.g ['us-central1-a/www-a', ...] aliases: nodes
name - |  | name of the load-balancer resource
pem_file - |  | path to the pem file associated with the service account email This option is deprecated. Use 'credentials_file'.
port_range - |  | the port (range) to forward, e.g. 80 or 8000-8888 defaults to all ports
project_id - |  | your GCE project ID
protocol - | Choices: tcp ← udp | the protocol used for the load-balancer packet forwarding, tcp or udp
region - |  | the GCE region where the load-balancer is defined
service_account_email - |  | service account email
state - | Choices: active present ← absent deleted | desired state of the LB

## Examples

    # Simple example of creating a new LB, adding members, and a health check
    - local_action:
        module: gce_lb
        name: testlb
        region: us-central1
        members: ["us-central1-a/www-a", "us-central1-b/www-b"]
        httphealthcheck_name: hc
        httphealthcheck_port: 80
        httphealthcheck_path: "/up"

## Status

- This module is not guaranteed to have a backwards compatible interface. [preview]

- This module is maintained by the Ansible Community. [community]

### Authors

- Eric Johnson (@erjohnso) <erjohnso@google.com>

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