Try SpotterManage server group in Radware Alteon
Authors: Leon Meguira (@leonmeguira), Nati Fridman (@natifridman)
preview | supported by certified
Install with ansible-galaxy collection install radware.radware_modules:==0.6.12
collections:
- name: radware.radware_modules
version: 0.6.12Manage server group in Radware Alteon
- name: alteon configuration command
alteon_config_server_group:
provider:
server: 192.168.1.1
user: admin
password: admin
validate_certs: no
https_port: 443
ssh_port: 22
timeout: 5
state: present
parameters:
index: group_test
slb_metric: bandwidth
health_check_id: test_hc
slow_start_time_second: 60
persist_overload_max_conn_server: enabled
server_names:
- server1
- server2
state:
choices:
- present
- absent
- read
- overwrite
- append
default: null
description:
- When C(present), guarantees that the object exists with the provided attributes.
- When C(absent), when applicable removes the object.
- When C(read), when exists read object from configuration to parameter format.
- When C(overwrite), removes the object if exists then recreate it
- When C(append), append object configuration with the provided parameters
required: true
provider:
description:
- Radware Alteon connection details.
required: true
suboptions:
https_port:
default: null
description:
- Radware Alteon https port.
required: true
password:
default: null
description:
- Radware Alteon password.
required: true
server:
default: null
description:
- Radware Alteon IP.
required: true
ssh_port:
default: null
description:
- Radware Alteon ssh port.
required: true
timeout:
default: null
description:
- Timeout for connection.
required: true
user:
default: null
description:
- Radware Alteon username.
required: true
validate_certs:
default: null
description:
- If C(no), SSL certificates will not be validated.
- This should only set to C(no) used on personally controlled sites using self-signed
certificates.
required: true
type: bool
parameters:
description:
- Parameters for server group configuration.
suboptions:
backup_group_name:
default: null
description:
- The backup real server group for this group.
required: false
type: str
backup_server_name:
default: null
description:
- The backup real server for this group.
required: false
type: str
backup_type:
choices:
- none
- server
- group
default: none
description:
- The real server or real server group used as the backup or overflow server or
server group for this real server group.
- You can assign a backup real server or real server group to prevent loss of
service if the entire real server group fails.
- If the real server group becomes unavailable, Alteon activates the backup real
server or real server group until one of the original real servers becomes available
again.
- The backup server or real server group is also used in overflow situations.
If all the servers in the real server group reach their maximum connections
limit, Alteon activates the backup server or real server group to provide additional
processing power until resources become available on one of the original servers.
- You can assign the same backup real server or real server group to more than
one real server group at the same time.
required: false
group_server_type:
choices:
- local
- wanlink
default: local
description:
- The server group type.
required: false
health_check_id:
default: tcp
description:
- Select a predefined or user-defined health check.
required: false
type: str
index:
default: null
description:
- Group ID.
required: true
type: str
ip_ver:
choices:
- ipv4
- ipv6
- mixed
default: ipv4
description:
- The IP version type of the real server group IP address.
required: false
name:
default: null
description:
- The name of the real server group.
required: false
type: str
persist_hash_mask:
default: 255.255.255.255
description:
- Specifies whether Alteon hashes the client IP address or network for the persistent
hash selection.
required: false
type: str
persist_overload_max_conn_server:
choices:
- enabled
- disabled
default: disabled
description:
- Specifies whether to ignore the overflow/overload server status, under certain
conditions.
- When enabled, new connections are allocated to a server for which the maximum
connections limit has been reached (overflow) or which is in overloaded status
as a result of a health check, if the new connections belong to existing persistent
sessions on that server (with Persistency Mode set to Client IP, SSL ID, or
Cookie).
required: false
secondary_backup_group_name:
default: null
description:
- The secondary backup real server group for this group.
required: false
type: str
server_names:
default: null
description:
- Group members
elements: str
required: false
type: list
slb_metric:
choices:
- roundRobin
- leastConnections
- minMisses
- hash
- response
- bandwidth
- phash
- svcLeast
- hrw
default: leastConnections
description:
- The metric used to select next server in the group.
- In C(leastConnections), Alteon sends the incoming connections to the real port
with the least number of connections.
- In C(roundRobin), when an available server is selected, Alteon ensures even
distribution when choosing a real port to receive the incoming connection.
- C(minMisses) is optimized for cache redirection. Alteon calculates a value for
each available real server based on the relevant IP address information in the
client request. The server with the highest value is assigned the connection.
This metric attempts to minimize the disruption of persistence when servers
are removed from service. Use only when persistence is required.
- In C(response), Alteon uses the response time between itself and real servers
as a weighting factor. Alteon monitors and records the amount of time it takes
for each real server to reply to a health check to adjust the real server weights.
The weights are adjusted so they are inversely proportional to a moving average
of response time. In such a scenario, a server with half the response time as
another server receives a weight twice as large.
- In C(bandwidth), Alteon monitors the number of octets sent between itself and
real servers. Servers that process more octets are considered to have less available
bandwidth. Alteon assigns requests client requests to the server with the greatest
available bandwidth. When the upload and download bandwidths are configured
for WAN link groups, Alteon calculates the server bandwidth based on bandwidth
utilization, not on octets.
- In C(hash), Alteon selects the real server based on a hash of the client IP
address.
- In C(phash), Alteon selects the real server based on a hash of the client IP
address. With Persistent Hash enabled, Alteon supports an even load distribution
(Hash) and stable server assignment (Minmiss) even when a server in the group
goes down. With the Persistent Hash metric, the first hash always is the same
even if a real server is down. If the first hash hits an unavailable server,
Alteon rehashes the client request based on the actual number of servers available.
This results in a request always being sent to a server that is available.
- In C(svcLeast), Alteon selects the real server based only on the number of active
connections for the service which is load balanced, and not the total number
of connections active on the server. For example, when selecting a real server
for a new HTTP session, a real server serving one HTTP connection and 20 FTP
connections takes precedence over a real server serving two HTTP connections
only.
required: false
slb_rport_metric:
choices:
- roundRobin
- hash
- leastConnections
default: roundRobin
description:
- Specifies how a specific service instance (port) is selected on a real server
when multiple service ports are configured on that real server.
required: false
slow_start_time_second:
default: 0
description:
- Specifies the slow start time, in seconds, for this server group.
- The slow start time is the interval between the time at which the server is
identified as up, and the time at which the server is considered part of the
server group.
required: false
type: int
vip_health_check_mode:
choices:
- enabled
- disabled
default: enabled
description:
- Specifies whether to enable VIP health checking in DSR mode.
required: false
revert_on_error:
default: false
description:
- If an error occurs, perform revert on alteon.
required: false
type: bool
write_on_change:
default: false
description:
- Executes Alteon write calls only when an actual change has been evaluated.
required: false
type: bool
obj: description: parameters object type returned: changed, read type: dictionary status: description: Message detailing run result returned: success sample: object deployed successfully type: str