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Use ansible.builtin.package when the same task must work across Linux distributions, and switch to ansible.builtin.apt or ansible.builtin.dnf when you need manager-specific controls. Set an explicit desired state such as present, absent, or (where supported) latest; run changing tasks with privilege escalation; and verify results with ansible.builtin.package_facts instead of parsing command output.
The examples below use fully qualified collection names (FQCNs), account for distribution-specific package names, and show the prerequisites that commonly make an otherwise-correct playbook fail.
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Ansible has two different package-management concerns: changing the target system and reading its current package state. The generic package module handles common install and removal operations without naming a manager. The apt and dnf modules expose controls that are meaningful only on their respective families. The package-facts module is for inspection, not installation.
| Requirement | Recommended module | What it provides | Important limitation |
|---|---|---|---|
| One task for several Linux families | ansible.builtin.package |
Uses the package manager discovered from gathered facts; accepts one name or a list; supports present and absent, and latest when the underlying manager supports it. |
It cannot expose every apt or dnf option, and a package may have a different name on another distribution. |
| Debian or Ubuntu controls | ansible.builtin.apt |
Cache refresh and age control, versions, local or remote .deb files, upgrades, autoremove, autoclean, and purge-related operations. |
The managed host needs the python3-apt bindings. |
| Fedora, RHEL and other DNF-family controls | ansible.builtin.dnf |
Install, upgrade, remove and list packages or groups, with repository selection, version constraints, lock timeouts and cache behavior. | The managed host needs python3-dnf. |
| Determine whether a package is installed | ansible.builtin.package_facts |
Returns installed-package data under ansible_facts.packages; can use an automatic, apt, rpm/dnf, apk, pacman, pkg, pkg_info or portage manager. |
It reports state; it does not make a package present or absent. |
Prerequisites and a safe execution pattern
Run changes with the required privilege
Package databases and system files normally require root access. Put become: true at play or task scope for installs, removals and upgrades. If your inventory uses a non-root account, configure a working privilege-escalation method and test it before running a large fleet.
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- name: Manage packages on Linux hosts
hosts: linux
become: true
tasks:
- name: Install a baseline tool
ansible.builtin.package:
name: curl
state: presentInstall the manager bindings on the managed host
The module runs on the target, not on the controller. The target therefore needs a usable Python interpreter and the binding required by its manager. The apt module specifies python3-apt; dnf specifies python3-dnf; package facts likewise needs the relevant apt or RPM support. Minimal images may omit both Python and these bindings. Build them into the image or use an environment-specific bootstrap task before invoking the normal package role; there is no single bootstrap sequence that works for every image.
Gather facts when automatic selection or naming depends on them
The generic package module chooses a manager from gathered facts. If a play disables fact gathering, gather the facts before package tasks or use a manager-specific module explicitly. Facts also let you select the correct package name for each operating-system family.
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The portable module is the best default when all you need is a convergent state. A task with state: present installs a package only when it is missing; rerunning the play leaves an already-installed package unchanged. Use a list to keep a baseline in one reviewable place.
- name: Install common packages
hosts: all
become: true
tasks:
- name: Ensure monitoring tools are installed
ansible.builtin.package:
name:
- curl
- vim
state: presentRemove packages
Set state: absent when the desired outcome is that the package is not installed. The task is idempotent: once the package is gone, later runs do not remove anything else merely because the task is repeated.
- name: Remove an obsolete utility
hosts: all
become: true
tasks:
- name: Ensure the legacy tool is absent
ansible.builtin.package:
name: legacy-tool
state: absentUse latest only when the manager supports it
state: latest asks the selected backend to bring a package to its newest available version. Support depends on the underlying manager, so do not assume identical behavior on every platform. If reproducibility matters, pin a version with a manager-specific module instead of allowing a moving target.
Force a manager only for a real discovery problem
The generic module has a use option that can force a manager such as dnf when automatic detection is inappropriate. Prefer normal fact-based detection first; forcing a backend that is not installed or does not own the target package produces a failure rather than portability.
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Handle distribution-specific names with variables
Package names are not standardized. A web server, compiler or mail utility can have one name on Debian-family systems and another on Red Hat-family systems. Keep the difference visible in variables instead of scattering conditional strings through tasks.
- name: Install a web server using the platform name
hosts: web
become: true
vars:
web_package_by_family:
Debian: nginx
RedHat: nginx
web_package: "{{ web_package_by_family[ansible_facts.os_family] }}"
tasks:
- name: Ensure the web server package is present
ansible.builtin.package:
name: "{{ web_package }}"
state: presentIf a family has no matching key, the variable lookup fails before a misleading package-manager error. Add an explicit supported-family check or provide a deliberate default rather than guessing a name.
Use ansible.builtin.apt on Debian and Ubuntu
Install and refresh the cache safely
The apt module manages Debian-family packages and can refresh repository metadata. cache_valid_time limits how often a refresh occurs; the value is in seconds. This example refreshes only when the cache is older than one hour.
- name: Install nginx on Debian-family hosts
hosts: debian
become: true
tasks:
- name: Ensure nginx is installed
ansible.builtin.apt:
name: nginx
state: present
update_cache: true
cache_valid_time: 3600Refreshing the cache on every task adds needless repository traffic. Put cache behavior on the tasks that need current metadata, and keep the package list explicit.
Install a specific version
Apt accepts package versions, allowing a playbook to express a fixed target instead of whatever version happens to be newest at execution time.
- name: Install an approved nginx version
become: true
ansible.builtin.apt:
name: nginx=1.24.0-2
state: present
update_cache: trueVersion strings are repository- and distribution-specific. Confirm that the requested version exists in the repositories configured on every target before enforcing it.
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Remove, purge and clean up
Use apt’s removal and cleanup options when Debian-family semantics matter. A normal removal leaves configuration files according to apt behavior; purge-related operations remove package configuration. The module also supports autoremove and autoclean. Treat autoremove as a deliberate policy because it can remove dependencies that are no longer marked as required.
- name: Remove nginx and purge its package configuration
become: true
ansible.builtin.apt:
name: nginx
state: absent
purge: true
- name: Remove no-longer-needed dependencies
become: true
ansible.builtin.apt:
autoremove: trueInstall local or remote Debian packages
The apt module can install a local or remote .deb file. Make the file source and trust boundary explicit, and ensure dependencies are available from configured repositories. A file-based install is not interchangeable with a normal repository package: upgrades and version availability depend on how that file is maintained.
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Apt’s force option disables signature and certificate checks and can damage the system. It should almost never be used. Fix repository configuration, keys, certificates or package metadata instead of bypassing verification.
Use ansible.builtin.dnf on DNF-family systems
Install and remove packages
- name: Install nginx on DNF-family hosts
hosts: dnf_hosts
become: true
tasks:
- name: Ensure nginx is installed
ansible.builtin.dnf:
name: nginx
state: present
- name: Remove an obsolete package
ansible.builtin.dnf:
name: old-agent
state: absentDNF also supports state: latest when you intentionally want the newest repository version. Keep the state explicit so a repeated run converges on the same policy rather than relying on a module default.
Use DNF-specific controls when the generic module is not enough
Choose the DNF module when you need repository selection, package groups, version constraints, lock timeouts or cache behavior. Those controls are the reason to leave the portable abstraction.
- name: Install a development group from a selected repository
become: true
ansible.builtin.dnf:
name: '@Development Tools'
state: present
enablerepo: build-repo
lock_timeout: 60Repository identifiers and group names are distribution-specific. Validate them on the target family before rolling out the task.
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Understand the yum name on current Ansible
Current documentation describes ansible.builtin.yum as an alias or redirect to the DNF implementation. The old YUM backend was removed from ansible-core 2.17. Use the FQCN ansible.builtin.dnf in new playbooks so the intended backend is clear and future maintenance does not depend on an alias.
Make package changes idempotent
Express the desired state, not a shell command
Package modules check current state and report whether a change is needed. A shell command such as a raw apt install or dnf install line does not provide that same state model and usually causes noisy, non-idempotent runs. Use a module unless the operation truly cannot be represented by it.
Keep package lists in variables
A variable makes the fleet’s baseline auditable and simplifies overrides for a host group or environment.
- name: Install the platform baseline
hosts: all
become: true
vars:
baseline_packages:
- curl
- ca-certificates
- vim
tasks:
- name: Converge the baseline package set
ansible.builtin.package:
name: "{{ baseline_packages }}"
state: presentSeparate installation policy from upgrade policy
present answers whether a package exists; latest answers whether it should track the newest available version. These are different operational decisions. Use present for a stable baseline, and schedule or review latest tasks when automatic upgrades are acceptable. For strict releases, use an explicit version with apt or dnf and update that value intentionally.
Do not confuse absence with purge
The generic module’s absent state removes a package according to the backend. If you need Debian-specific purging, use the apt module and its purge-related options. The distinction matters when configuration files must be retained for a later reinstall or removed for decommissioning.
Inspect installed packages with ansible.builtin.package_facts
Use package facts when a later task needs to branch on installation state or report a version. It returns data under ansible_facts.packages, where each package name maps to one or more installed-version records.
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- name: Gather installed package facts
hosts: all
become: true
tasks:
- name: Read package state from the available manager
ansible.builtin.package_facts:
manager: auto
- name: Report the installed curl version
ansible.builtin.debug:
var: ansible_facts.packages.curl
when: "'curl' in ansible_facts.packages"Select the manager and strategy deliberately
manager: auto chooses from supported backends. You can request a specific manager such as apt, rpm or dnf, apk, pacman, pkg, pkg_info or portage. The strategy can return the first available manager or all available managers. Use the all-managers strategy only when you have a reason to inspect more than one package database.
- name: Gather facts from the RPM database
become: true
ansible.builtin.package_facts:
manager:
- rpm
strategy: firstCheck presence without failing on an absent key
An uninstalled package may not appear in the facts dictionary. Test membership before reading its version, as in the curl example. This avoids an undefined-variable failure and lets you provide a useful branch.
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- name: Explain that the agent is missing
ansible.builtin.debug:
msg: monitoring-agent is not installed
when: "'monitoring-agent' not in ansible_facts.packages"Verify a change in the same play
A package task’s changed status tells you whether Ansible made a change, while package facts let you inspect the resulting state. Gather facts after the change when verification is required.
- name: Ensure and verify curl
hosts: all
become: true
tasks:
- name: Install curl
ansible.builtin.package:
name: curl
state: present
- name: Refresh installed-package facts
ansible.builtin.package_facts:
manager: auto
- name: Fail if curl is still absent
ansible.builtin.fail:
msg: curl was requested but is not present in package facts
when: "'curl' not in ansible_facts.packages"Facts gathered before an install describe the earlier state. If you need post-change evidence, place the package-facts task after the package task.
Combine portable and specific tasks by operating system
A play can remain portable while giving each family the controls it needs. Use the generic module for common packages, then branch to apt or dnf for cache policy, versions, groups or cleanup.
- name: Configure a mixed Linux fleet
hosts: all
become: true
tasks:
- name: Install the common command-line tools
ansible.builtin.package:
name:
- curl
- vim
state: present
- name: Install nginx with apt cache policy
ansible.builtin.apt:
name: nginx
state: present
update_cache: true
cache_valid_time: 3600
when: ansible_facts.os_family == 'Debian'
- name: Install nginx with DNF
ansible.builtin.dnf:
name: nginx
state: present
when: ansible_facts.os_family == 'RedHat'Use conditions based on gathered facts, not guesses from host names. If a distribution family is unsupported, fail clearly or exclude it from the play rather than silently applying the wrong manager.
Troubleshoot the common failure modes
| Symptom | Likely cause | Corrective action |
|---|---|---|
| The module cannot import a package-manager library. | The target lacks python3-apt, python3-dnf, RPM support, or a Python interpreter. |
Install the binding in the image or run an image-specific bootstrap step before normal package tasks; verify the interpreter used by Ansible. |
| Permission denied while updating the package database. | The task is running as an unprivileged account. | Add become: true and confirm that privilege escalation is configured for the inventory user. |
| A package name cannot be found. | The name differs by distribution, the repository is unavailable, or metadata is stale. | Select the name from OS-family variables, refresh apt metadata where appropriate, and verify repository configuration. |
| A generic package task chooses the wrong backend. | Facts were not gathered or automatic detection is unsuitable for the host. | Gather facts before the task, use a manager-specific module, or set the generic module’s use option to an installed backend. |
latest behaves differently across hosts. |
The underlying managers expose different upgrade capabilities or repositories contain different versions. | Use present for existence, or pin an explicit version with apt or dnf when uniformity matters. |
| Verification reports an old state after installation. | Package facts were gathered before the change. | Run package_facts again after the package task. |
| An apt task bypasses repository verification. | force: true was used as a workaround. |
Remove force; repair signatures, certificates or repository metadata instead. |
A practical decision framework
- Need only install or remove a package across families? Start with
ansible.builtin.package, explicitnameandstate. - Do names differ? Define a variable by
ansible_facts.os_familyand fail clearly for unsupported families. - Need cache age, purge, a local
.deb, autoremove or apt version syntax? Useansible.builtin.apton Debian-family hosts. - Need groups, repository selection, lock timeouts or DNF version controls? Use
ansible.builtin.dnfon DNF-family hosts. - Need to inspect state or branch on an installed version? Gather
ansible.builtin.package_factsand test membership before reading a package record. - Will the task change the system? Add
become: true, and verify that the manager binding and Python interpreter exist on every target.
Reference playbook pattern
This pattern keeps the common baseline portable, gives Debian and DNF hosts their own manager-specific task, and verifies the result.
- name: Install and verify a Linux package baseline
hosts: all
become: true
gather_facts: true
vars:
baseline_packages:
- curl
- vim
web_package_by_family:
Debian: nginx
RedHat: nginx
tasks:
- name: Install portable baseline packages
ansible.builtin.package:
name: "{{ baseline_packages }}"
state: present
- name: Install the family-specific web package
ansible.builtin.package:
name: "{{ web_package_by_family[ansible_facts.os_family] }}"
state: present
- name: Refresh apt metadata when needed
ansible.builtin.apt:
update_cache: true
cache_valid_time: 3600
when: ansible_facts.os_family == 'Debian'
- name: Gather installed package facts
ansible.builtin.package_facts:
manager: auto
- name: Show the installed curl record
ansible.builtin.debug:
var: ansible_facts.packages.curl
when: "'curl' in ansible_facts.packages"In production, validate the family-to-name mapping for every supported distribution, keep version pins in reviewable variables, and test the play against a representative minimal image as well as a full installation.
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