Idempotent Package Management with Ansible's yum and apt Modules
Learn how Ansible's yum and apt modules enforce idempotent package installs, see a cross‑family playbook, and verify the behavior with check mode and drift tests.
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PostgreSQL on Elastic Beanstalk (Amazon Linux 2)
With former generation of Amazon Linux, all I needed to do is add the following in .ebextensions in order to use PostgreSQL: packages: yum: postgresql93-devel: [] Now when I deploy on EB with the following platform: Python 3.7 running on 64bit Amazon Linux 2/3.0.0 I get the following error on deployment: [ERROR] Error occurred during build: Yum does not have
CentOS 8 yum alias: Will the symlink to dnf be removed in future releases?
Background CentOS 8 replaces the legacy yum binary with dnf , retaining a yum symlink for backward compatibility. The symlink masks underlying differences in dependency resolution, exit codes, and option handling (e.g., --setopt ). Scripts that rely on exact yum output or exit status may fail silently when dnf is invoked through the alias. Unresolved Decisio
RHEL8/Fedora - yum/dnf causes cannot download repodata/repomd.xml for docker-ce
Question How to fix the Cannot download repodata/repomd.xml: All mirrors were tried for docker-ce. Problem Get the error Cannot download repodata/repomd.xml: All mirrors were tried with yum install docker-ce by following the current (as of 2021DEC13) Docker documentations to setup Docker yum/dnf repositories. Install Docker Engine on Fedora Install Docker En
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