get_url – Downloads files from HTTP, HTTPS, or FTP to node

From Get docs
Ansible/docs/2.7/modules/get url module


get_url – Downloads files from HTTP, HTTPS, or FTP to node

Synopsis

  • Downloads files from HTTP, HTTPS, or FTP to the remote server. The remote server must have direct access to the remote resource.
  • By default, if an environment variable <protocol>_proxy is set on the target host, requests will be sent through that proxy. This behaviour can be overridden by setting a variable for this task (see setting the environment), or by using the use_proxy option.
  • HTTP redirects can redirect from HTTP to HTTPS so you should be sure that your proxy environment for both protocols is correct.
  • From Ansible 2.4 when run with --check, it will do a HEAD request to validate the URL but will not download the entire file or verify it against hashes.
  • For Windows targets, use the win_get_url module instead.

Parameters

Parameter Choices/Defaults Comments

attributes

-

added in 2.3

Attributes the file or directory 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.

= operator is assumed as default, otherwise + or - operators need to be included in the string.


aliases: attr

backup

boolean

added in 2.1

  • no

  • yes

Create a backup file including the timestamp information so you can get the original file back if you somehow clobbered it incorrectly.

checksum

-

added in 2.0

Default:

""

If a checksum is passed to this parameter, the digest of the destination file will be calculated after it is downloaded to ensure its integrity and verify that the transfer completed successfully. Format: :, e.g. checksum="sha256:D98291AC[...]B6DC7B97", checksum="sha256:http://example.com/path/sha256sum.txt%22

If you worry about portability, only the sha1 algorithm is available on all platforms and python versions.

The third party hashlib library can be installed for access to additional algorithms.

Additionally, if a checksum is passed to this parameter, and the file exist under the dest location, the destination_checksum would be calculated, and if checksum equals destination_checksum, the file download would be skipped (unless force is true).

client_cert

-

added in 2.4

PEM formatted certificate chain file to be used for SSL client authentication. This file can also include the key as well, and if the key is included, client_key is not required.

client_key

-

added in 2.4

PEM formatted file that contains your private key to be used for SSL client authentication. If client_cert contains both the certificate and key, this option is not required.

dest

- / required

Absolute path of where to download the file to.

If dest is a directory, either the server provided filename or, if none provided, the base name of the URL on the remote server will be used. If a directory, force has no effect.

If dest is a directory, the file will always be downloaded (regardless of the force option), but replaced only if the contents changed..

force

boolean

  • no

  • yes

If yes and dest is not a directory, will download the file every time and replace the file if the contents change. If no, the file will only be downloaded if the destination does not exist. Generally should be yes only for small local files.

Prior to 0.6, this module behaved as if yes was the default.


aliases: thirsty

force_basic_auth

boolean

added in 2.0

  • no

  • yes

httplib2, the library used by the uri module only sends authentication information when a webservice responds to an initial request with a 401 status. Since some basic auth services do not properly send a 401, logins will fail. This option forces the sending of the Basic authentication header upon initial request.

group

-

Name of the group that should own the file/directory, as would be fed to chown.

headers

-

added in 2.0

Add custom HTTP headers to a request in hash/dict format. The hash/dict format was added in 2.6. Previous versions used a "key:value,key:value" string format. The "key:value,key:value" string format is deprecated and will be removed in version 2.10.

mode

-

Mode the file or directory should be. For those used to /usr/bin/chmod remember that modes are actually octal numbers. You must either add a leading zero so that Ansible's YAML parser knows it is an octal number (like 0644 or 01777) or quote it (like '644' or '1777') so Ansible receives a string and can do its own conversion from string into number. Giving Ansible a number without following one of these rules will end up with a decimal number which will have unexpected results. As of version 1.8, the mode may be specified as a symbolic mode (for example, u+rwx or u=rw,g=r,o=r).

others

-

all arguments accepted by the file module also work here

owner

-

Name of the user that should own the file/directory, as would be fed to chown.

selevel

-

Default:

"s0"

Level part of the SELinux file context. This is the MLS/MCS attribute, sometimes known as the range. _default feature works as for seuser.

serole

-

Role part of SELinux file context, _default feature works as for seuser.

setype

-

Type part of SELinux file context, _default feature works as for seuser.

seuser

-

User part of SELinux file context. Will default to system policy, if applicable. If set to _default, it will use the user portion of the policy if available.

sha256sum

-

added in 1.3

Default:

""

If a SHA-256 checksum is passed to this parameter, the digest of the destination file will be calculated after it is downloaded to ensure its integrity and verify that the transfer completed successfully. This option is deprecated. Use checksum instead.

timeout

-

added in 1.8

Default:

10

Timeout in seconds for URL request.

tmp_dest

-

added in 2.1

Absolute path of where temporary file is downloaded to.

When run on Ansible 2.5 or greater, path defaults to ansible's remote_tmp setting

When run on Ansible prior to 2.5, it defaults to TMPDIR, TEMP or TMP env variables or a platform specific value.

unsafe_writes

boolean

added in 2.2

  • no

  • yes

By default this module uses atomic operations to prevent data corruption or inconsistent reads from the target files, but sometimes systems are configured or just broken in ways that prevent this. One example is docker mounted files, 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 files 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.

url

- / required

HTTP, HTTPS, or FTP URL in the form (http|https|ftp)://[user[:pass]]@host.domain[:port]/path

url_password

-

added in 1.6

The password for use in HTTP basic authentication.

If the url_username parameter is not specified, the url_password parameter will not be used.

url_username

-

added in 1.6

The username for use in HTTP basic authentication.

This parameter can be used without url_password for sites that allow empty passwords.

use_proxy

boolean

  • no
  • yes

if no, it will not use a proxy, even if one is defined in an environment variable on the target hosts.

validate_certs

boolean

  • no
  • yes

If no, SSL certificates will not be validated. This should only be used on personally controlled sites using self-signed certificates.



Notes

Note

  • For Windows targets, use the win_get_url module instead.


Examples

- name: Download foo.conf
  get_url:
    url: http://example.com/path/file.conf
    dest: /etc/foo.conf
    mode: 0440

- name: Download file and force basic auth
  get_url:
    url: http://example.com/path/file.conf
    dest: /etc/foo.conf
    force_basic_auth: yes

- name: Download file with custom HTTP headers
  get_url:
    url: http://example.com/path/file.conf
    dest: /etc/foo.conf
    headers:
      key1: one
      key2: two

- name: Download file with check (sha256)
  get_url:
    url: http://example.com/path/file.conf
    dest: /etc/foo.conf
    checksum: sha256:b5bb9d8014a0f9b1d61e21e796d78dccdf1352f23cd32812f4850b878ae4944c

- name: Download file with check (md5)
  get_url:
    url: http://example.com/path/file.conf
    dest: /etc/foo.conf
    checksum: md5:66dffb5228a211e61d6d7ef4a86f5758

- name: Download file with checksum url (sha256)
  get_url:
    url: http://example.com/path/file.conf
    dest: /etc/foo.conf
    checksum: 'sha256:http://example.com/path/sha256sum.txt'

- name: Download file from a file path
  get_url:
    url: file:///tmp/afile.txt
    dest: /tmp/afilecopy.txt

Return Values

Common return values are documented here, the following are the fields unique to this module:

Key Returned Description

backup_file

string

changed and if backup=yes

name of backup file created after download


Sample:

/path/to/file.txt.2015-02-12@22:09~

checksum_dest

string

success

sha1 checksum of the file after copy


Sample:

6e642bb8dd5c2e027bf21dd923337cbb4214f827

checksum_src

string

success

sha1 checksum of the file


Sample:

6e642bb8dd5c2e027bf21dd923337cbb4214f827

dest

string

success

destination file/path


Sample:

/path/to/file.txt

gid

integer

success

group id of the file


Sample:

100

group

string

success

group of the file


Sample:

httpd

md5sum

string

when supported

md5 checksum of the file after download


Sample:

2a5aeecc61dc98c4d780b14b330e3282

mode

string

success

permissions of the target


Sample:

0644

msg

string

always

the HTTP message from the request


Sample:

OK (unknown bytes)

owner

string

success

owner of the file


Sample:

httpd

secontext

string

success

the SELinux security context of the file


Sample:

unconfined_u:object_r:user_tmp_t:s0

size

integer

success

size of the target


Sample:

1220

src

string

changed

source file used after download


Sample:

/tmp/tmpAdFLdV

state

string

success

state of the target


Sample:

file

status_code

integer

always

the HTTP status code from the request


Sample:

200

uid

integer

success

owner id of the file, after execution


Sample:

100

url

string

always

the actual URL used for the request


Sample:




Status

Red Hat Support

More information about Red Hat’s support of this module is available from this Red Hat Knowledge Base article.

Authors

  • Jan-Piet Mens (@jpmens)

Hint

If you notice any issues in this documentation you can edit this document to improve it.


© 2012–2018 Michael DeHaan
© 2018–2019 Red Hat, Inc.
Licensed under the GNU General Public License version 3.
https://docs.ansible.com/ansible/2.7/modules/get_url_module.html