mirror of
https://github.com/ansible-collections/ansible.posix.git
synced 2026-02-04 08:01:49 +00:00
Add ephemeral state to mount fs without altering fstab
This commit is contained in:
NdFeB
parent
55bd196e82
commit
04089e80fb
3 changed files with 416 additions and 22 deletions
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@ -1,3 +1,9 @@
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- name: Install dependencies
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ansible.builtin.package:
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name: e2fsprogs
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state: present
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when: ansible_system == 'Linux'
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- name: Create the mount point
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file:
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state: directory
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@ -406,3 +412,270 @@
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- /tmp/myfs1
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- /tmp/test_fstab
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when: ansible_system in ('Linux')
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- name: Block to test ephemeral option
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environment:
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PATH: /usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin
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block:
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- name: Create empty file A
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community.general.filesize:
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path: /tmp/myfs_A.img
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size: 20M
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- name: Create empty file B
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community.general.filesize:
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path: /tmp/myfs_B.img
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size: 20M
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- name: Register facts on Linux
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ansible.builtin.set_fact:
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ephemeral_device_A: /tmp/myfs_A.img
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ephemeral_device_B: /tmp/myfs_B.img
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ephemeral_fstype: ext3
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ephemeral_fstab: /etc/fstab
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when: ansible_system == 'Linux'
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- name: Register facts on Solaris/SunOS
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ansible.builtin.set_fact:
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ephemeral_device_A: /dev/lofi/1
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ephemeral_device_B: /dev/lofi/2
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ephemeral_create_loop_dev_cmd: >
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lofiadm -a /tmp/myfs_A.img /dev/lofi/1 &&
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lofiadm -a /tmp/myfs_B.img /dev/lofi/2
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ephemeral_remove_loop_dev_cmd: >
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lofiadm -d /dev/lofi/1 &&
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lofiadm -d /dev/lofi/2 || true
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ephemeral_fstype: ufs
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ephemeral_fstab: /etc/vfstab
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when: ansible_system == 'SunOS'
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- name: Register facts on FreeBSD
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ansible.builtin.set_fact:
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ephemeral_device_A: /dev/md1
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ephemeral_device_B: /dev/md2
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ephemeral_create_loop_dev_cmd: >
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mdconfig -a -t vnode -f /tmp/myfs_A.img -u /dev/md1 &&
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mdconfig -a -t vnode -f /tmp/myfs_B.img -u /dev/md2
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ephemeral_remove_loop_dev_cmd: >
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mdconfig -d -u /dev/md1 &&
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mdconfig -d -u /dev/md2
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ephemeral_fstype: ufs
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ephemeral_fstab: /etc/fstab
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when: ansible_system == 'FreeBSD'
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- name: Register facts on NetBSD
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ansible.builtin.set_fact:
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ephemeral_device_A: /dev/vnd1
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ephemeral_device_B: /dev/vnd2
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ephemeral_create_loop_dev_cmd: >
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vnconfig /dev/vnd1 /tmp/myfs_A.img &&
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vnconfig /dev/vnd2 /tmp/myfs_B.img
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ephemeral_remove_loop_dev_cmd: >
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vnconfig -u /dev/vnd1 &&
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vnconfig -u /dev/vnd2
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ephemeral_fstype: ufs
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ephemeral_fstab: /etc/fstab
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when: ansible_system == 'NetBSD'
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- name: Register format fs command on Non-Linux and Non-OpenBSD
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ansible.builtin.set_fact:
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ephemeral_format_fs_cmd: >
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yes | newfs {{ ephemeral_device_A }} &&
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yes | newfs {{ ephemeral_device_B }}
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when: ansible_system in ('SunOS', 'FreeBSD', 'NetBSD')
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- name: Register facts on OpenBSD
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ansible.builtin.set_fact:
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ephemeral_device_A: /dev/vnd1c
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ephemeral_device_B: /dev/vnd2c
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ephemeral_create_loop_dev_cmd: >
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vnconfig vnd1 /tmp/myfs_A.img &&
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vnconfig vnd2 /tmp/myfs_B.img
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ephemeral_remove_loop_dev_cmd: >
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vnconfig -u vnd1 &&
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vnconfig -u vnd2
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ephemeral_format_fs_cmd: >
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yes | newfs /dev/rvnd1c &&
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yes | newfs /dev/rvnd2c
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ephemeral_fstype: ffs
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ephemeral_fstab: /etc/fstab
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when: ansible_system == 'OpenBSD'
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##### FORMAT FS ON LINUX
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- name: Block to format FS on Linux
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block:
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- name: Format FS A on Linux
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community.general.filesystem:
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fstype: ext3
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dev: /tmp/myfs_A.img
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- name: Format FS B on Linux
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community.general.filesystem:
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fstype: ext3
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dev: /tmp/myfs_B.img
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when: ansible_system == 'Linux'
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##### FORMAT FS ON SOLARIS AND BSD
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- name: Create loop devices on Solaris and BSD
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ansible.builtin.shell: "{{ ephemeral_create_loop_dev_cmd }}"
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when: ephemeral_create_loop_dev_cmd is defined
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- name: Format FS A and B on Solaris and BSD
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ansible.builtin.shell: "{{ ephemeral_format_fs_cmd }}"
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when: ephemeral_format_fs_cmd is defined
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##### TESTS
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- name: Create fstab if it does not exist
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ansible.builtin.file:
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path: "{{ ephemeral_fstab }}"
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state: touch
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- name: Get checksum of /etc/fstab before mounting anything
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stat:
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path: '{{ ephemeral_fstab }}'
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register: fstab_stat_before_mount
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- name: Mount the FS A with ephemeral state
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mount:
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path: /tmp/myfs
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src: '{{ ephemeral_device_A }}'
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fstype: '{{ ephemeral_fstype }}'
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opts: rw
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state: ephemeral
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register: ephemeral_mount_info
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- name: Put something in the directory so we can do additional checks later on
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copy:
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content: 'Testing'
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dest: /tmp/myfs/test_file
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- name: Get checksum of /etc/fstab after an ephemeral mount
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stat:
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path: '{{ ephemeral_fstab }}'
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register: fstab_stat_after_mount
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- name: Get mountinfo
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shell: mount -v | awk '{print $3}' | grep '^/tmp/myfs$' | wc -l
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register: check_mountinfo
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changed_when: no
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- name: Assert the mount occured and the fstab is unchanged
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assert:
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that:
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- check_mountinfo.stdout|int == 1
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- ephemeral_mount_info['changed']
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- fstab_stat_before_mount['stat']['checksum'] == fstab_stat_after_mount['stat']['checksum']
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- name: Get first mount record
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shell: mount -v | grep '/tmp/myfs'
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register: ephemeral_mount_record_1
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changed_when: no
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- name: Try to mount FS A where FS A is already mounted (should trigger remount and changed)
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mount:
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path: /tmp/myfs
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src: '{{ ephemeral_device_A }}'
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fstype: '{{ ephemeral_fstype }}'
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opts: ro
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state: ephemeral
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register: ephemeral_mount_info
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- name: Get second mount record (should be different than the first)
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shell: mount -v | grep '/tmp/myfs'
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register: ephemeral_mount_record_2
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changed_when: no
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- name: Get mountinfo
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shell: mount -v | awk '{print $3}' | grep '^/tmp/myfs$' | wc -l
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register: check_mountinfo
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changed_when: no
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- name: Assert the FS A is still mounted, the options changed and the fstab unchanged
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assert:
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that:
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- check_mountinfo.stdout|int == 1
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- ephemeral_mount_record_1.stdout != ephemeral_mount_record_2.stdout
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- ephemeral_mount_info['changed']
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- fstab_stat_before_mount['stat']['checksum'] == fstab_stat_after_mount['stat']['checksum']
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- name: Try to mount file B on file A mountpoint (should fail)
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mount:
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path: /tmp/myfs
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src: '{{ ephemeral_device_B }}'
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fstype: '{{ ephemeral_fstype }}'
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state: ephemeral
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register: ephemeral_mount_b_info
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ignore_errors: true
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- name: Get third mount record (should be the same than the second)
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shell: mount -v | grep '/tmp/myfs'
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register: ephemeral_mount_record_3
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changed_when: no
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- name: Get mountinfo
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shell: mount -v | awk '{print $3}' | grep '^/tmp/myfs$' | wc -l
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register: check_mountinfo
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changed_when: no
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- name: Try to stat our test file
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stat:
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path: /tmp/myfs/test_file
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register: test_file_stat
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- name: Assert that mounting FS B over FS A failed
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assert:
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that:
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- check_mountinfo.stdout|int == 1
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- ephemeral_mount_record_2.stdout == ephemeral_mount_record_3.stdout
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- test_file_stat['stat']['exists']
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- ephemeral_mount_b_info is failed
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- name: Unmount FS with state = unmounted
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mount:
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path: /tmp/myfs
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state: unmounted
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- name: Get fstab checksum after unmounting an ephemeral mount with state = unmounted
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stat:
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path: '{{ ephemeral_fstab }}'
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register: fstab_stat_after_unmount
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- name: Get mountinfo
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shell: mount -v | awk '{print $3}' | grep '^/tmp/myfs$' | wc -l
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register: check_mountinfo
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changed_when: no
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- name: Try to stat our test file
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stat:
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path: /tmp/myfs/test_file
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register: test_file_stat
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- name: Assert that fstab is unchanged after unmounting an ephemeral mount with state = unmounted
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assert:
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that:
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- check_mountinfo.stdout|int == 0
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- not test_file_stat['stat']['exists']
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- fstab_stat_before_mount['stat']['checksum'] == fstab_stat_after_unmount['stat']['checksum']
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always:
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- name: Unmount potential failure relicas
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mount:
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path: /tmp/myfs
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state: unmounted
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- name: Remove loop devices on Solaris and BSD
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ansible.builtin.shell: "{{ ephemeral_remove_loop_dev_cmd }}"
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when: ephemeral_remove_loop_dev_cmd is defined
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- name: Remove the test FS
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file:
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path: '{{ item }}'
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state: absent
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loop:
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- /tmp/myfs_A.img
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- /tmp/myfs_B.img
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- /tmp/myfs
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when: ansible_system in ('Linux', 'SunOS', 'FreeBSD', 'NetBSD', 'OpenBSD')
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