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· 阅读需 9 分钟

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CI, and CI, and CI, oh my! (then more CI)

By Chris Evich GitHub

I wanted to write a detailed post about the CI setup we use for exercising proposed changes to libpod (podman repo).  Unfortunately this topic (and automation in general) is so big, most readers would end up on the floor, sound asleep, in a puddle of their own drool.  Instead, I will keep your fidget-spinner twirling, by jumping around several topics.

· 阅读需 8 分钟

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Programmatic remote access to Podman via the varlink protocol

By Harald Hoyer GitHub

This guide shows how to access Podman remotely via the varlink interface with CLI tools and programmatically with python, go and rust.

This should work on Linux, MacOS and Windows 10.

The compatibility matrix shows which feature is supported on which OS in which language.

Note: replace <podman-machine> in this guide with the IP or hostname of your Podman machine

· 阅读需 3 分钟

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Simplifying Podman commands with labels

By Brent Baude GitHub

Commands used by container runtimes to create containers have become complex. It is on purpose of course. When creating containers, we want the ability to specify various security or network attributes. But if you are in the unenviable position to have to keystroke in some of these lengthy commands, it can grow tiresome. Defining labels on the container image is a great way to define how the container should be run; however, now with Podman we can read and execute that label saving you potential command line bloat.

· 阅读需 3 分钟

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Podman container|image exists

By Brent Baude GitHub

We are seeing a proliferation of Podman usage in users' daily workflows. As such, these workflows are often scripted -- in something like bash -- and clear exit codes from the applications being run are paramount. One of the tasks we often see is a user wanting to verify if an image or a container exists in local storage. We saw several different approaches approaches to solving this including running podman ps or podman images with filters or complex uses of grep.

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Build Podman RPMs with a container image

By Brent Baude GitHub

Libpod development is still very much active and on-going. We often have folks who are looking to test out the latest libpod and Podman for either new features or bug fixes. We typically build RPMs for distributions like Fedora on a release cadence, which used to be weekly but now has slowed down as libpod has stabilized. Building libpod from source is not difficult, but sometimes the user's environment will not allow them to install all the packages needed; or perhaps the user is intimidated by building from source; or perhaps the user would prefer the RPM package because it will make the upgrade process easier down the road.

To solve this problem, I have created a series of container images for CentOS7, Fedora 28, and Fedora 29 that are capable of building a development Podman RPM and associated packages.