ansible/test/integration/targets/file/tasks/state_link.yml
Alexander Sowitzki e804fccf1c Let file module not change link to absolute when src not given ()
The file module changes existing sym links from relative to absolute
if the src is not stated in the tasks since it uses `os.path.realpath`
to fetch the link source and not `os.readlink`. Changed that.
2021-03-01 15:14:03 +01:00

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# file module tests for dealing with symlinks (state=link)
- name: Initialize the test output dir
include: initialize.yml
#
# Basic absolute symlink to a file
#
- name: create soft link to file
file: src={{output_file}} dest={{output_dir}}/soft.txt state=link
register: file1_result
- name: Get stat info for the link
stat:
path: '{{ output_dir }}/soft.txt'
follow: False
register: file1_link_stat
- name: verify that the symlink was created correctly
assert:
that:
- 'file1_result is changed'
- 'file1_link_stat["stat"].islnk'
- 'file1_link_stat["stat"].lnk_target | expanduser == output_file | expanduser'
#
# Change an absolute soft link into a relative soft link
#
- name: change soft link to relative
file: src={{output_file|basename}} dest={{output_dir}}/soft.txt state=link
register: file2_result
- name: Get stat info for the link
stat:
path: '{{ output_dir }}/soft.txt'
follow: False
register: file2_link_stat
- name: verify that the file was marked as changed
assert:
that:
- "file2_result is changed"
- "file2_result.diff.before.src == remote_file_expanded"
- "file2_result.diff.after.src == remote_file_expanded|basename"
- "file2_link_stat['stat'].islnk"
- "file2_link_stat['stat'].lnk_target == remote_file_expanded | basename"
#
# Check that creating the soft link a second time was idempotent
#
- name: soft link idempotency check
file: src={{output_file|basename}} dest={{output_dir}}/soft.txt state=link
register: file3_result
- name: Get stat info for the link
stat:
path: '{{ output_dir }}/soft.txt'
follow: False
register: file3_link_stat
- name: verify that the file was not marked as changed
assert:
that:
- "not file3_result is changed"
- "file3_link_stat['stat'].islnk"
- "file3_link_stat['stat'].lnk_target == remote_file_expanded | basename"
#
# Test symlink to nonexistent files
#
- name: fail to create soft link to non existent file
file:
src: '/nonexistent'
dest: '{{output_dir}}/soft2.txt'
state: 'link'
force: False
register: file4_result
ignore_errors: true
- name: verify that link was not created
assert:
that:
- "file4_result is failed"
- name: force creation soft link to non existent
file:
src: '/nonexistent'
dest: '{{ output_dir}}/soft2.txt'
state: 'link'
force: True
register: file5_result
- name: Get stat info for the link
stat:
path: '{{ output_dir }}/soft2.txt'
follow: False
register: file5_link_stat
- name: verify that link was created
assert:
that:
- "file5_result is changed"
- "file5_link_stat['stat'].islnk"
- "file5_link_stat['stat'].lnk_target == '/nonexistent'"
- name: Prove idempotence of force creation soft link to non existent
file:
src: '/nonexistent'
dest: '{{ output_dir }}/soft2.txt'
state: 'link'
force: True
register: file6a_result
- name: verify that the link to nonexistent is idempotent
assert:
that:
- "file6a_result.changed == false"
# In order for a symlink in a sticky world writable directory to be followed, it must
# either be owned by the follower,
# or the directory and symlink must have the same owner.
- name: symlink in sticky directory
block:
- name: Create remote unprivileged remote user
user:
name: '{{ remote_unprivileged_user }}'
register: user
- name: Create a local temporary directory
tempfile:
state: directory
register: tempdir
- name: Set sticky bit
file:
path: '{{ tempdir.path }}'
mode: o=rwXt
- name: 'Check mode: force creation soft link in sticky directory owned by another user (mode is used)'
file:
src: '{{ user.home }}/nonexistent'
dest: '{{ tempdir.path }}/soft3.txt'
mode: 0640
state: 'link'
owner: '{{ remote_unprivileged_user }}'
force: true
follow: false
check_mode: true
register: missing_dst_no_follow_enable_force_use_mode1
- name: force creation soft link in sticky directory owned by another user (mode is used)
file:
src: '{{ user.home }}/nonexistent'
dest: '{{ tempdir.path }}/soft3.txt'
mode: 0640
state: 'link'
owner: '{{ remote_unprivileged_user }}'
force: true
follow: false
register: missing_dst_no_follow_enable_force_use_mode2
- name: Get stat info for the link
stat:
path: '{{ tempdir.path }}/soft3.txt'
follow: false
register: soft3_result
- name: 'Idempotence: force creation soft link in sticky directory owned by another user (mode is used)'
file:
src: '{{ user.home }}/nonexistent'
dest: '{{ tempdir.path }}/soft3.txt'
mode: 0640
state: 'link'
owner: '{{ remote_unprivileged_user }}'
force: yes
follow: false
register: missing_dst_no_follow_enable_force_use_mode3
always:
- name: Delete remote unprivileged remote user
user:
name: '{{ remote_unprivileged_user }}'
state: absent
- name: Delete unprivileged user home and tempdir
file:
path: "{{ item }}"
state: absent
loop:
- '{{ tempdir.path }}'
- '{{ user.home }}'
- name: verify that link was created
assert:
that:
- "missing_dst_no_follow_enable_force_use_mode1 is changed"
- "missing_dst_no_follow_enable_force_use_mode2 is changed"
- "missing_dst_no_follow_enable_force_use_mode3 is not changed"
- "soft3_result['stat'].islnk"
- "soft3_result['stat'].lnk_target == '{{ user.home }}/nonexistent'"
#
# Test creating a link to a directory https://github.com/ansible/ansible/issues/1369
#
- name: create soft link to directory using absolute path
file:
src: '/'
dest: '{{ output_dir }}/root'
state: 'link'
register: file6_result
- name: Get stat info for the link
stat:
path: '{{ output_dir }}/root'
follow: False
register: file6_link_stat
- name: Get stat info for the pointed to file
stat:
path: '{{ output_dir }}/root'
follow: True
register: file6_links_dest_stat
- name: Get stat info for the file we intend to point to
stat:
path: '/'
follow: False
register: file6_dest_stat
- name: verify that the link was created correctly
assert:
that:
# file command reports it created something
- "file6_result.changed == true"
# file command created a link
- 'file6_link_stat["stat"]["islnk"]'
# Link points to the right path
- 'file6_link_stat["stat"]["lnk_target"] == "/"'
# The link target and the file we intended to link to have the same inode
- 'file6_links_dest_stat["stat"]["inode"] == file6_dest_stat["stat"]["inode"]'
#
# Test creating a relative link
#
# Relative link to file
- name: create a test sub-directory to link to
file:
dest: '{{ output_dir }}/sub1'
state: 'directory'
- name: create a file to link to in the test sub-directory
file:
dest: '{{ output_dir }}/sub1/file1'
state: 'touch'
- name: create another test sub-directory to place links within
file:
dest: '{{output_dir}}/sub2'
state: 'directory'
- name: create soft link to relative file
file:
src: '../sub1/file1'
dest: '{{ output_dir }}/sub2/link1'
state: 'link'
register: file7_result
- name: Get stat info for the link
stat:
path: '{{ output_dir }}/sub2/link1'
follow: False
register: file7_link_stat
- name: Get stat info for the pointed to file
stat:
path: '{{ output_dir }}/sub2/link1'
follow: True
register: file7_links_dest_stat
- name: Get stat info for the file we intend to point to
stat:
path: '{{ output_dir }}/sub1/file1'
follow: False
register: file7_dest_stat
- name: verify that the link was created correctly
assert:
that:
# file command reports it created something
- "file7_result.changed == true"
# file command created a link
- 'file7_link_stat["stat"]["islnk"]'
# Link points to the right path
- 'file7_link_stat["stat"]["lnk_target"] == "../sub1/file1"'
# The link target and the file we intended to link to have the same inode
- 'file7_links_dest_stat["stat"]["inode"] == file7_dest_stat["stat"]["inode"]'
# Relative link to directory
- name: create soft link to relative directory
file:
src: sub1
dest: '{{ output_dir }}/sub1-link'
state: 'link'
register: file8_result
- name: Get stat info for the link
stat:
path: '{{ output_dir }}/sub1-link'
follow: False
register: file8_link_stat
- name: Get stat info for the pointed to file
stat:
path: '{{ output_dir }}/sub1-link'
follow: True
register: file8_links_dest_stat
- name: Get stat info for the file we intend to point to
stat:
path: '{{ output_dir }}/sub1'
follow: False
register: file8_dest_stat
- name: verify that the link was created correctly
assert:
that:
# file command reports it created something
- "file8_result.changed == true"
# file command created a link
- 'file8_link_stat["stat"]["islnk"]'
# Link points to the right path
- 'file8_link_stat["stat"]["lnk_target"] == "sub1"'
# The link target and the file we intended to link to have the same inode
- 'file8_links_dest_stat["stat"]["inode"] == file8_dest_stat["stat"]["inode"]'
# test the file module using follow=yes, so that the target of a
# symlink is modified, rather than the link itself
- name: create a test file
copy:
dest: '{{output_dir}}/test_follow'
content: 'this is a test file\n'
mode: 0666
- name: create a symlink to the test file
file:
path: '{{output_dir}}/test_follow_link'
src: './test_follow'
state: 'link'
- name: modify the permissions on the link using follow=yes
file:
path: '{{output_dir}}/test_follow_link'
mode: 0644
follow: yes
register: file9_result
- name: stat the link target
stat:
path: '{{output_dir}}/test_follow'
register: file9_stat
- name: assert that the chmod worked
assert:
that:
- 'file9_result is changed'
- 'file9_stat["stat"]["mode"] == "0644"'
#
# Test modifying the permissions of a link itself
#
- name: attempt to modify the permissions of the link itself
file:
path: '{{output_dir}}/test_follow_link'
src: './test_follow'
state: 'link'
mode: 0600
follow: False
register: file10_result
# Whether the link itself changed is platform dependent! (BSD vs Linux?)
# Just check that the underlying file was not changed
- name: stat the link target
stat:
path: '{{output_dir}}/test_follow'
register: file10_target_stat
- name: assert that the link target was unmodified
assert:
that:
- 'file10_target_stat["stat"]["mode"] == "0644"'
# https://github.com/ansible/ansible/issues/56928
- block:
- name: Create a testing file
file:
path: "{{ output_dir }}/test_follow1"
state: touch
- name: Create a symlink and change mode of the original file, since follow == yes by default
file:
src: "{{ output_dir }}/test_follow1"
dest: "{{ output_dir }}/test_follow1_link"
state: link
mode: 0700
- name: stat the original file
stat:
path: "{{ output_dir }}/test_follow1"
register: stat_out
- name: Check if the mode of the original file was set
assert:
that:
- 'stat_out.stat.mode == "0700"'
always:
- name: Clean up
file:
path: "{{ item }}"
state: absent
loop:
- "{{ output_dir }}/test_follow1"
- "{{ output_dir }}/test_follow1_link"
# END #56928
# Test failure with src and no state parameter
- name: Specify src without state
file:
src: "{{ output_file }}"
dest: "{{ output_dir }}/link.txt"
ignore_errors: yes
register: src_state
- name: Ensure src without state failed
assert:
that:
- src_state is failed
- "'src option requires state to be' in src_state.msg"
# Test creating a symlink when the destination exists and is a file
- name: create a test file
copy:
dest: '{{ output_dir }}/file.txt'
content: 'this is a test file\n'
mode: 0666
- name: Create a symlink with dest already a file
file:
src: '{{ output_file }}'
dest: '{{ output_dir }}/file.txt'
state: link
ignore_errors: true
register: dest_is_existing_file_fail
- name: Stat to make sure the symlink was not created
stat:
path: '{{ output_dir }}/file.txt'
follow: false
register: dest_is_existing_file_fail_stat
- name: Forcefully a symlink with dest already a file
file:
src: '{{ output_file }}'
dest: '{{ output_dir }}/file.txt'
state: link
force: true
register: dest_is_existing_file_force
- name: Stat to make sure the symlink was created
stat:
path: '{{ output_dir }}/file.txt'
follow: false
register: dest_is_existing_file_force_stat
- assert:
that:
- dest_is_existing_file_fail is failed
- not dest_is_existing_file_fail_stat.stat.islnk
- dest_is_existing_file_force is changed
- dest_is_existing_file_force_stat.stat.exists
- dest_is_existing_file_force_stat.stat.islnk