Ansible fstab swap. I can easily disable it by using this .

Ansible fstab swap I am using the Ansible command below but with no luck. regexp: '^(\s*)([^#\n]+\s+)(\w+\s+)swap(\s+. TASK [geerlingguy. Nov 14, 2023 · Managing mount points and filesystems is a critical sysadmin skill. I know you created this for a very specific use, but it should be just as easy to create a role that takes care of May 28, 2024 · You need to use the dd command to create swap file. To use it in a playbook, specify: community. on file) we need to remove the old swap with. 04 Feb 2, 2015 · I expect any user dealing with fstab to be aware of the pitfalls of creating broken entries. Jan 19, 2024 · This is my first post so please bear with me. 3. You can use a simple >> to inject into fstab what ever you want. swap_file_state: absent roles: - geerlingguy. Feb 26, 2021 · What's the best way to disable swap entirely on a fleet of GNU/Linux hosts, using systemd and Ansible? For whatever reason some of my virtual machines have a swap file configured in their /etc/fstab, Feb 14, 2019 · Kubernetes for some reason doesn’t play well with swap. Just change this line based on your required memory. posix collection (version 1. 20. - name: Add nodev to /etc/ Apr 12, 2020 · Kubernetesのシステム要件に「swapがオフであること」というのがあるので、Ansibleつかってノードの準備を行う際に「swapが有効の場合には無効にする」というのを冪等になるようにやってみた。 対象はCentOS 7 taskの例 現在のswap設定 swapが有効化かチェック swapを無効化 fstabの編集 fstabにswap設定が Sep 16, 2020 · Hi Guys, I am trying to configure the Kubernetes Cluster using the Ansible playbook. replace: path: /etc/fstab. * swap . A prerequisite of having the node up, is disabling the swap on the running machine. mount: path: none: src: "{{ swap_file[0] }}" fstype: swap: opts: sw: passno: '0' dump: '0' state: present # -f, --fixpgsz reinitialize the swap space if necessary - name: Turn swap on: ansible. I can easily disable it by using this Oct 22, 2019 · Many thanks for your answer, i need to check how i can use handler or task. It DOES work with - name: mount all command: mount -a become: true however ansible insists on suggesting to use the mount module [WARNING]: Consider using mount module rather than running mount fstab に登録されていないマウント ポイントを再マウントするには、特に BSD ノードの場合は、代わりに ephemeral を使用します。 absent_from_fstab は、デバイス マウントのエントリが fstab から削除されることを指定します。このオプションでは、マウント解除や The idea is to list the mounts in fstab that contains the word swap and store them in a variable then disable or commenting it. 2. Aug 16, 2024 · Configuring swap space allows a server to handle additional memory demands by using disk space as virtual memory, which helps prevent out-of-memory errors and maintain system stability. A swap file can be allocated in the available storage of the machine. You need further requirements to be able to use this module, see Requirements for details. *$' state: absent - name: Disable swap command: swapoff -a when: ansible_swaptotal_mb > 0 It would be nice to execute those tasks to disable S After using Ansible's lineinfile module to add multiple mount points to /etc/fstab, I'd like to run a simple mount -a to bring those into effect. # that works even if disks are added and removed. 22、192. It's very new for me. shell> ssh admin@test_01 cat /tmp/fstab UUID=423d168c-5a90-44f9-94b2-d2da9f0e1e4f / ext4 errors=remount-ro 0 1 UUID=0F15-7883 /boot/efi vfat umask=0077 0 1 /swapfile none swap sw 0 0 shell> ssh admin@test_02 cat /tmp/fstab UUID=423d168c-5a90-44f9-94b2-d2da9f0e1e4f Jul 14, 2021 · If i understand the question you have a script you want to run to re stand up you System. Open a terminal window (select Applications > Accessories > Terminal) or login to remote server using the ssh client. How would you set up a file based swap memory with ansible in an idempotent way? What modules or variables does ansible provide help with this setup (like ansible_swaptotal_mb variable) ? Ansible can be utilized as a helper tool to automate the creation of swap memory. filesystem . ] ************************************************************************ Feb 26, 2021 · What's the best way to disable swap entirely on a fleet of GNU/Linux hosts, using systemd and Ansible? For whatever reason some of my virtual machines have a swap file configured in their /etc/fstab, which gets automatically picked up at boot by systemd-fstab-generator like this: ansible. g. Automating this process with Ansible ensures that swap space is consistently and efficiently configured across multiple servers. Il n'est pas inclus dans le ansible-core. Cette collection est peut-être déjà installée si vous utilisez le package ansible. you do need su rights to do this since fstab is protected. command: swapon -f {{ swap Mar 25, 2025 · File to use instead of /etc/fstab. I created a playbook that will loop through a list of mount points and if the mount points exist and correct options do not exist it will add the correct options. posix. So, if the container host has swap enabled, Kubernetes shuts down on startup. 23 作为 nfs客户端挂载； [root@xuzhichao ~]# ansible localhost -m yum -a 'name=nfs-utils state=present' [root@xuzhichao ~]# ansible localhost -m file -a 'path=/data/nfs/ owner=nginx group=nginx state=directory' [root@xuzhichao ~]# ansible localhost -m copy -a 'dest=/etc/exports content="/data/nfs 192. But constantly editing /etc/fstab and running mount commands can be tedious and error-prone. . swap : Manage swap file entry in fstab. builtin. 0). shell> cat hosts test_01 test_02 test_03 and the files /tmp/fstab (all the same) for testing. You should not use this option unless you really know what you are doing. See fstab(5). command: "mkswap {{ swap_file[0] }}" - name: "Add {{ swap_file[0] }} entry to fstab" ansible. Step 1 – Login as the Root User. 168. become: true. Pour vérifier s'il est installé, exécutez ansible-galaxy collection list. In some aws ec2 instances, we can use ephemeral storage as swap space. Hope that helps. command: swapoff -a. Mar 29, 2024 · For example, given the inventory. Pour l'installer, utilisez : ansible-galaxy collection install ansible. What if you SSH there and test all those commands manually? Oct 21, 2014 · You can do do it by running the following commands: and add this line to /etc/fstab: If you have one server it’s acceptable, but if you have a lot of them, it would be much easier to use ansible. We will use the how-to by Rackspace on how to create swap file. *)$' replace: '#\1\2\3swap\4' backup: yes. 04 and 22. 0 Apr 9, 2020 · I am using below playbook to write the entries in /etc/fstab & to create swap file:--- - name: Configure SWAP hosts: localhost become: yes become_user: root tasks: - name: Configuring a SWAP command: "{{ item }}" loop: - mkswap -f "{{ ebs_swap }}" - echo "UUID=$(blkid -s UUID -o value {{ ebs_swap }}) swap swap defaults 0 0" | sudo tee -a /etc/fstab - swapon -a Dec 11, 2023 · ★SHIFTGroup技術ブログ（公式note）でアドベントカレンダー★ SHIFT公式ブロガーによるブログ版アドベントカレンダーで、SHIFTらしい多彩な最新記事をクリスマスまでの25日間に毎日お届けしております！ SHIFT公式アドカレ2023まとめ記事 SHIFT公式アドカレ2022はじめます SHIFTGroup技術ブログTOP 昨日の swap - Ansible role that configures swapfile and hibernation on Ubuntu 18. For 4 GB : command: dd if=/dev/zero of=/swapfile bs=1G count=4 Dec 10, 2013 · There are two ways to create swap, on disk device and file, seems most documents and discussions are only talking about to create a swap file by ansible only. I am having issues with the second task which is the shell module to mount -o remount only the filesystems that have changed. general. In case we want to replace an existing swap (e. The swap file then can be assigned as a swap memory. This might be useful if you need to configure mountpoints in a chroot environment. Mar 25, 2025 · To install it, use: ansible-galaxy collection install community. I do it all the time example - echo ‘UUID=5847-C38A /boot/efi vfat defaults 0 1’ >> /etc/fstab. My issue lies with the regular expression, I'm not a pro at regex. sudo swapoff -a # for all Then remove the swap entry from /etc/fstab or replace it with the new swap respectively. This parameter defaults to /etc/fstab or /etc/vfstab on Solaris. swap. But Kubelet will not start if the system has swap enabled, so I need to disable swap. In this comprehensive 2500+ word guide, you‘ll learn how to use Ansible to automate mounting filesystems like a Linux expert! Why Ansible Makes Mounting Easier Before we dive in, let‘s discuss why […] May 27, 2022 · OpenBSD does not allow specifying alternate fstab files with mount so do not use this on OpenBSD with any state that operates on the live filesystem. The mkswap command is used to set up a Linux swap area on a device or in a file. Feb 22, 2017 · This ansible script will help you to create SWAP memory in a single command. This part of the playbook works. When We Need This Use Case Aug 18, 2021 · 环境准备：将 ansible 作为 nfs 服务端， 192. I am trying to add nodev to my /etc/fstab file. Oct 13, 2021 · Here is my /etc/fstab after the playbook passed: # /etc/fstab: static file system information. About one simple playbook i try that : ``` - hosts: host-test-bdd1 tasks: - name: We desactivate swap command: swapoff -a when: ansible_swap_free_mb < 1600 - name: We active swap command: swapon -a ``` But i still don't know where to put the condition "when" exactly Ce plugin fait partie du ansible. Oct 25, 2019 · Hello Jeff - name: Remove swap from /etc/fstab lineinfile: dest: /etc/fstab regexp: '^. partition) with another swap (e. waaodx qbfk kudec dpnmawz yyycbu hlykbc rzfbc tji mjgva qxbjr jggj hloe bgnhv jldh okvmp