When using tools such as GitLab can cloned via HTTP and SSH. Especially the second choice can be handy if there is no VPN available – but keep in mind, also sending DNS via the … Read more
Short tip: Utilize Ansible role via Vagrant
When implementing larger tasks in Ansible, you might thinking about writing your own Ansible role sooner or later. For this, the ansible-galaxy command can help you:
Short tip: Ansible – “failed to create temporary content file: ‘The read operation timed out'”
While using the Ansible modules get_url and unarchive I recently stumbled upon the following errors:
Test-driven development with Chef and Vagrant
When it is planned to automate deploying and configuring complex insfrastructure setups, Chef is a mighty tool. Focussing the Infrastructure as Code (IaC) manifesto, it offers more than conventional Configuration Management and can be used … Read more
Short tip: Python TypeError: __init__() takes exactly 2 arguments (4 given)
Recently, I stumbled upon the following issue while installing a Python utility on an older CentOS system:
Short tip: Puppet – “Unable to fetch my node definition, but the agent run will continue”
Doing a recent Puppet agent upgrade from version 3.x to 4.x I stumbled upon the following errors:
Short tip: VirtualBox 5.2 installation under macOS 10.13
VirtualBox enjoys great popularity where it is required to virtualize common operating systems for conventional use-cases at no cost. In comparison with other hypervisors such as VMware Workstation, VirtualBox only offers basic graphics acceleration – … Read more
Short tip: Install missing SNMP MIBs under Debian Linux
Leveraging SNMP is often a pain when appropriate MIB files (Management Information Base) are missing – e.g. because the manufacturer did not document them or only offer them at fee. When utilizing a Perl program … Read more
Short tip: Find out HP Managepent Processor IP address
Recently I needed access to a HP Management Processor (MP) without knowing the appropriate IP address. A possibility is to utilize a serial connection to the MP – but this is kinda complicated if you … Read more
Puppet agents force dozens of errors: “Could not set ‘file’ on ensure: incorrect header check”
Recently I had the problem that my homelab’s Linux machines managed by Puppet were generating dozens of error messages when updating the catalog: