f5networks.f5_modules.bigip_ucs_fetch module – Fetches a UCS file from remote nodes
Note
This module is part of the f5networks.f5_modules collection (version 1.31.0).
You might already have this collection installed if you are using the ansible
package.
It is not included in ansible-core
.
To check whether it is installed, run ansible-galaxy collection list
.
To install it, use: ansible-galaxy collection install f5networks.f5_modules
.
To use it in a playbook, specify: f5networks.f5_modules.bigip_ucs_fetch
.
New in f5networks.f5_modules 1.0.0
Synopsis
This module is used for fetching UCS files from remote machines and storing them locally in a file tree, organized by hostname. This module was written to create and transfer UCS files that might not be present, it does not require UCS file to be pre-created. So a missing remote UCS is not an error unless
fail_on_missing
is set to ‘yes’.
Parameters
Parameter |
Comments |
---|---|
Parameter used when creating new UCS file on a device. The number of seconds to wait for the API async interface to complete its task. The accepted value range is between Default: |
|
The attributes the resulting filesystem object should have. To get supported flags look at the man page for chattr on the target system. This string should contain the attributes in the same order as the one displayed by lsattr. The |
|
Creates a backup file including the timestamp information so you can get the original file back if you overwrote it incorrectly. Choices:
|
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Creates the UCS based on the value of When set to Choices:
|
|
A directory to save the UCS file into. This option is mandatory when |
|
Password to use to encrypt the UCS file if desired. |
|
Make the module fail if the UCS file on the remote system is missing. This option always takes precedence over When set to Choices:
|
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If Choices:
|
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Name of the group that should own the filesystem object, as would be fed to chown. When left unspecified, it uses the current group of the current user unless you are root, in which case it can preserve the previous ownership. |
|
The permissions the resulting filesystem object should have. For those used to /usr/bin/chmod remember that modes are actually octal numbers. You must give Ansible enough information to parse them correctly. For consistent results, quote octal numbers (for example, Giving Ansible a number without following either of these rules will end up with a decimal number which will have unexpected results. As of Ansible 1.8, the mode may be specified as a symbolic mode (for example, If If Specifying |
|
If To recreate UCS files left on the device, remove them with the Choices:
|
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Name of the user that should own the filesystem object, as would be fed to chown. When left unspecified, it uses the current user unless you are root, in which case it can preserve the previous ownership. Specifying a numeric username will be assumed to be a user ID and not a username. Avoid numeric usernames to avoid this confusion. |
|
A dict object containing connection details. |
|
Configures the auth provider for to obtain authentication tokens from the remote device. This option is really used when working with BIG-IQ devices. |
|
If You may omit this option by setting the environment variable Previously used variable Choices:
|
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The password for the user account used to connect to the BIG-IP or the BIG-IQ. You may omit this option by setting the environment variable |
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The BIG-IP host or the BIG-IQ host. You may omit this option by setting the environment variable |
|
The BIG-IP server port. You may omit this option by setting the environment variable Default: |
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Specifies the timeout in seconds for communicating with the network device for either connecting or sending commands. If the timeout is exceeded before the operation is completed, the module will error. |
|
Configures the transport connection to use when connecting to the remote device. Choices:
|
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The username to connect to the BIG-IP or the BIG-IQ. This user must have administrative privileges on the device. You may omit this option by setting the environment variable |
|
If You may omit this option by setting the environment variable Choices:
|
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The level part of the SELinux filesystem object context. This is the MLS/MCS attribute, sometimes known as the When set to |
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The role part of the SELinux filesystem object context. When set to |
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The type part of the SELinux filesystem object context. When set to |
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The user part of the SELinux filesystem object context. By default it uses the When set to |
|
The name of the UCS file to create on the remote server for downloading. The file is retrieved or created in /var/local/ucs/. This option is mandatory when |
|
Influence when to use atomic operation to prevent data corruption or inconsistent reads from the target filesystem object. By default this module uses atomic operations to prevent data corruption or inconsistent reads from the target filesystem objects, but sometimes systems are configured or just broken in ways that prevent this. One example is docker mounted filesystem objects, which cannot be updated atomically from inside the container and can only be written in an unsafe manner. This option allows Ansible to fall back to unsafe methods of updating filesystem objects when atomic operations fail (however, it doesn’t force Ansible to perform unsafe writes). IMPORTANT! Unsafe writes are subject to race conditions and can lead to data corruption. Choices:
|
Notes
Note
BIG-IP provides no way to get a checksum of the UCS files on the system via any interface with the possible exception of logging in directly to the box (which would not support appliance mode). Therefore, the best this module can do is check for the existence of the file on disk; no check-summing.
If you are using this module with either Ansible Tower or Ansible AWX, you should be aware of how these Ansible products execute jobs in restricted environments. More information can be found here https://clouddocs.f5.com/products/orchestration/ansible/devel/usage/module-usage-with-tower.html
Some longer running tasks might cause the REST interface on BIG-IP to time out, to avoid this adjust the timers as per this KB article https://support.f5.com/csp/article/K94602685
For more information on using Ansible to manage F5 Networks devices see https://www.ansible.com/integrations/networks/f5.
Requires BIG-IP software version >= 12.
The F5 modules only manipulate the running configuration of the F5 product. To ensure that BIG-IP specific configuration persists to disk, be sure to include at least one task that uses the f5networks.f5_modules.bigip_config module to save the running configuration. Refer to the module’s documentation for the correct usage of the module to save your running configuration.
Examples
- name: Download a new UCS
bigip_ucs_fetch:
src: cs_backup.ucs
dest: /tmp/cs_backup.ucs
provider:
server: lb.mydomain.com
user: admin
password: secret
delegate_to: localhost
- name: Only create new UCS, no download
bigip_ucs_fetch:
src: cs_backup.ucs
only_create_file: true
provider:
server: lb.mydomain.com
user: admin
password: secret
delegate_to: localhost
- name: Recreate UCS file left on device - remove file first
bigip_ucs:
ucs: cs_backup.ucs
state: absent
provider:
server: lb.mydomain.com
user: admin
password: secret
delegate_to: localhost
- name: Recreate UCS file left on device - create new file
bigip_ucs_fetch:
src: cs_backup.ucs
only_create_file: true
provider:
server: lb.mydomain.com
user: admin
password: secret
delegate_to: localhost
Return Values
Common return values are documented here, the following are the fields unique to this module:
Key |
Description |
---|---|
Name of the backup file. Returned: changed and if backup=yes Sample: |
|
The SHA1 checksum of the downloaded file. Returned: success or changed Sample: |
|
Location on the Ansible host the UCS was saved to. Returned: success Sample: |
|
Group ID of the UCS file, after execution. Returned: success Sample: |
|
Group of the UCS file, after execution. Returned: success Sample: |
|
The MD5 checksum of the downloaded file. Returned: changed or success Sample: |
|
Permissions of the target UCS, after execution. Returned: success Sample: |
|
Owner of the UCS file, after execution. Returned: success Sample: |
|
Size of the target UCS, after execution. Returned: success Sample: |
|
Name of the UCS file on the remote BIG-IP to download. If not specified, this is a randomly generated filename. Returned: changed Sample: |
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Owner ID of the UCS file, after execution. Returned: success Sample: |