Terraform has now been open-source and forked with the OpenTofu project. The ‘tofu’ binary is a drop-in replacement for terraform, and this article will show you how to install on Debian/Ubuntu. After installation, we will then use the Debian/Ubuntu Alternatives concept to supersede existing calls to ‘terraform’ to instead invoke ‘tofu’. Setup OpenTofu apt repository … OpenTofu: installing OpenTofu on Debian/Ubuntu
If apt update throws warnings about invalid signature verification and NO_PUBKEY, you may need to migrate from using the deprecated system keyring to using a ‘signed-by’ attribute in your apt repo definition file. Here are examples of errors you might see when doing an ‘apt update’. W: An error occurred during the signature verification. The … Ubuntu: fixing apt NO_PUBKEY errors by converting deprecated keyring to signed-by attribute
If you have warning messages coming from apt about an invalid signature verification and EXPKEYSIG, then it is likely that a signing key for one of the remote apt repo has expired. Below is an example coming from an expired podman package at the “download.opensuse.org” repo. W: An error occurred during the signature verification. The … Ubuntu: fixing apt invalid signature warnings
If you have Dropbox installed on your Linux desktop and have recently started seeing this warning message from apt: http://linux.dropbox.com/ubuntu/dists/disco/Release.gpg: Key is stored in legacy trusted.gpg keyring (/etc/apt/trusted.gpg), see the DEPRECATION section in apt-key(8) for details This can be resolved by adding the Dropbox PGP key to the ‘signed-by’ of the apt repo definition (as … Ubuntu: fix apt warning for Dropbox with key in legacy keyring
Update Aug 2023: using newer ‘signed-by’ attribute for apt signing keys. Installing Helm using apt is a straight-forward procedure and documented on the official site. Coming straight from the official helm documentation, here are the commands for Ubuntu 22. curl https://baltocdn.com/helm/signing.asc | gpg –dearmor | sudo tee /usr/share/keyrings/helm.gpg > /dev/null sudo chmod 644 /usr/share/keyrings/helm.gpg sudo … Helm: Installing Helm on Ubuntu
Managing resources in Azure from the command line can be done natively from Ubuntu using the Azure CLI. First, add the prerequisite packages. sudo apt-get update sudo apt-get install ca-certificates curl apt-transport-https lsb-release gnupg -y Then install the Microsoft signing key and add the custom repository. curl -sL https://packages.microsoft.com/keys/microsoft.asc | gpg –dearmor | sudo tee … Azure: installing the Azure CLI on Ubuntu
Once you have a Squid proxy setup as described in my article here, the next challenge is configuring your Ubuntu servers so that they use this proxy by default instead of attempting direct internet connections. There are several entities we want using Squid by default: apt package manager, interactive consoles and wget/curl, and Java applications.