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add role "swap" - configure swap space (if not already exists) #160

Merged
merged 5 commits into from
Apr 19, 2022
Merged

add role "swap" - configure swap space (if not already exists) #160

merged 5 commits into from
Apr 19, 2022

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vitabaks
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Variables:

  • swap_file_create
  • swap_file_path
  • swap_file_size_mb

@vitabaks
add role "swap" - configure swap space (if not already exists)
e678b7e 
Variables: swap_file_create, swap_file_path, swap_file_size_mb
@vitabaks
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vitabaks commented Apr 19, 2022 •
edited
Loading

test

swap_file_size_mb: '2048'

ansible-playbook add_pgnode.yml --tag swap

PLAY [PostgreSQL High-Availability Cluster Scaling (add replica node)] *******************************************************************************************************************************

TASK [Gathering Facts] *******************************************************************************************************************************************************************************
ok: [10.128.64.157]

TASK [Include OS-specific variables] *****************************************************************************************************************************************************************
ok: [10.128.64.157]

TASK [swap : Ensure swap exists] *********************************************************************************************************************************************************************
ok: [10.128.64.157]

TASK [swap : Swap exists] ****************************************************************************************************************************************************************************
ok: [10.128.64.157] => {
    "msg": "Size 1024"
}

TASK [swap : Disable all existing swaps] *************************************************************************************************************************************************************
changed: [10.128.64.157]

TASK [swap : Remove swap from /etc/fstab] ************************************************************************************************************************************************************
changed: [10.128.64.157]

TASK [swap : Remove swap file (if exists)] ***********************************************************************************************************************************************************
changed: [10.128.64.157]

TASK [swap : Create swap file] ***********************************************************************************************************************************************************************
changed: [10.128.64.157]

TASK [swap : Set permissions on swap file] ***********************************************************************************************************************************************************
changed: [10.128.64.157]

TASK [swap : Make swap file if necessary] ************************************************************************************************************************************************************
changed: [10.128.64.157]

TASK [swap : Run swapon on the swap file] ************************************************************************************************************************************************************
changed: [10.128.64.157]

TASK [swap : Manage swap file entry in fstab] ********************************************************************************************************************************************************
changed: [10.128.64.157]

PLAY [pgbackrest:postgres_cluster] *******************************************************************************************************************************************************************

TASK [Gathering Facts] *******************************************************************************************************************************************************************************
ok: [10.128.64.157]
ok: [10.128.64.136]

TASK [Include OS-specific variables] *****************************************************************************************************************************************************************
ok: [10.128.64.136]
ok: [10.128.64.157]

PLAY [replica] ***************************************************************************************************************************************************************************************

TASK [Gathering Facts] *******************************************************************************************************************************************************************************
ok: [10.128.64.157]

TASK [Include OS-specific variables] *****************************************************************************************************************************************************************
ok: [10.128.64.157]

PLAY RECAP *******************************************************************************************************************************************************************************************
10.128.64.136              : ok=2    changed=0    unreachable=0    failed=0    skipped=1    rescued=0    ignored=0
10.128.64.157              : ok=16   changed=8    unreachable=0    failed=0    skipped=3    rescued=0    ignored=0

Result:

[root@host-05 ~]# swapon --show
NAME      TYPE SIZE USED PRIO
/swapfile file   2G   0B   -2

idempotency test

ansible-playbook add_pgnode.yml --tag swap

PLAY [PostgreSQL High-Availability Cluster Scaling (add replica node)] *******************************************************************************************************************************

TASK [Gathering Facts] *******************************************************************************************************************************************************************************
ok: [10.128.64.157]

TASK [Include OS-specific variables] *****************************************************************************************************************************************************************
ok: [10.128.64.157]

TASK [swap : Ensure swap exists] *********************************************************************************************************************************************************************
ok: [10.128.64.157]

TASK [swap : Swap exists] ****************************************************************************************************************************************************************************
ok: [10.128.64.157] => {
    "msg": "Size 2048"
}

PLAY [pgbackrest:postgres_cluster] *******************************************************************************************************************************************************************

TASK [Gathering Facts] *******************************************************************************************************************************************************************************
ok: [10.128.64.157]
ok: [10.128.64.136]

TASK [Include OS-specific variables] *****************************************************************************************************************************************************************
ok: [10.128.64.136]
ok: [10.128.64.157]

PLAY [replica] ***************************************************************************************************************************************************************************************

TASK [Gathering Facts] *******************************************************************************************************************************************************************************
ok: [10.128.64.157]

TASK [Include OS-specific variables] *****************************************************************************************************************************************************************
ok: [10.128.64.157]

PLAY RECAP *******************************************************************************************************************************************************************************************
10.128.64.136              : ok=2    changed=0    unreachable=0    failed=0    skipped=1    rescued=0    ignored=0
10.128.64.157              : ok=8    changed=0    unreachable=0    failed=0    skipped=11   rescued=0    ignored=0

test passed.

@vitabaks
Molecule: set "swap_file_create: false" (to prevent test failures in CI)
81ade45
@vitabaks
swap: fix the condition
85fac76
@vitabaks
swap role: the handle multiple existing swaps
71d3e10 
Example:

[root@host-05 ~]# swapon --show=SIZE --noheadings
1000M
  20M

Result:

TASK [swap : Swap exists] ********************
ok: [10.128.64.157] => {
    "msg": "swap_size_mb: 1020"
}
@vitabaks
swap role: fix the condition
95d8ff1
@vitabaks vitabaks merged commit d17a520 into master Apr 19, 2022
@vitabaks vitabaks deleted the dev branch November 9, 2022 10:01
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@vitabaks