IcsMeta Common Library

IcsMeta: Library for Meta

This is the IcsMeta common library.

class opslib.icsmeta.IcsMeta

__dict__ = <dictproxy object at 0x4b013d0>

__init__()

Initialize Ics Meta (meta-data, user-data, credentials, tags)

__module__ = 'opslib.icsmeta'

__weakref__

list of weak references to the object (if defined)

download_cfg(pattern)

Download configuration files from S3

Parameters:pattern (string) – regrex expression to match Return type:string Returns:the local path where downloaded files stored

download_script(pattern)

Download scripts from S3

Parameters:pattern (string) – regrex expression to match Return type:string Returns:the local path where downloaded files stored

generate_hostname()

Generate the hostname

Return type:string Returns:the hostname

get_cfg_bucket()

Get the Config Bucket from instance user-data

Return type:string Returns:the Config Bucket name

get_credentials()

Get AWS credentials from instance user-data

Return type:dict Returns:AWS credentials as a dictionary

get_dns_from_tag()

Get the DnsName from instance tags

Return type:string Returns:the DnsName

get_eips_from_tag()

Get the EIP list from instance tags

Return type:list Returns:the list contains EIP addresses

get_instance_id()

Get the instance id from instance meta-data

Return type:string Returns:the instance id

get_instance_name()

Get the Instance name from instance tags

Return type:string Returns:the Instance name

get_machine_tags(timeout=120)

Get the instance tags

Return type:string Returns:the tags of this instance

static get_meta_data(timeout=None, url=None, num_retries=None)

Get instance meta data

Parameters:

• timeout (int) – timeout for the request
• url (string) – metadata_service_url
• num_retries (int) – how many times to retry

Return type:

dict

Returns:

instance meta data as a dictionary

get_openssh_pubkey()

Get the openssh public key from instance meta-data

Return type:string Returns:the contents of openssh public key

get_private_ip()

Get the private ip address from instance meta-data

Return type:string Returns:the private ip address

get_public_hostname()

Get the public hostname from instance meta-data

Return type:string Returns:the public hostname

get_public_ip()

Get the public ip address from instance meta-data

Return type:string Returns:the public ip address

get_region()

Get the region from instance meta-data

Return type:string Returns:the region name

get_role_name()

Get the Role name from instance tags

Return type:string Returns:the Role name

get_script_url()

Get the S3 url for import scripts from instance user-data

Return type:string Returns:the s3 url for scripts

get_sns_topic()

Get the SNS Topic from instance user-data

Return type:string Returns:the SNS Topic name

static get_user_data(timeout=None, url=None, num_retries=None)

Get instance user data

Parameters:

• timeout (int) – timeout for the request
• url (string) – metadata_service_url
• num_retries (int) – how many times to retry

Return type:

dict

Returns:

instance user data as a dictionary

get_zone()

Get the availability zone from instance meta-data

Return type:string Returns:the availability zone name

init_alert(prefix='ICS')

Intialize ICS Alert

Parameters:prefix (str) – prefix string to indicate which process Return type:class Returns:the instance of initialized IcsAlert class

init_config()

Combine meta-data, user-data, tags into one json string

Return type:dict Returns:json string contains meta-data, user-data, tags

is_eip_ready(eip)

check the readiness of the specified EIP address

Parameters:eip (string) – one EIP address Return type:boolean Returns:True/False

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