Containerd - Revision history

Christoph: /* crictl */

2023-01-18T21:07:41Z

‎crictl

Christoph at 21:07, 18 January 2023

2023-01-18T21:07:18Z

Christoph: Created page with "'''Containerd''' is an industry-standard core container runtime. It is currently available as a daemon for Linux and Windows, which can manage the complete container lifecycle..."

2023-01-18T19:50:14Z

Created page with "'''Containerd''' is an industry-standard core container runtime. It is currently available as a daemon for Linux and Windows, which can manage the complete container lifecycle..."

New page

'''Containerd''' is an industry-standard core container runtime. It is currently available as a daemon for Linux and Windows, which can manage the complete container lifecycle of its host system. In 2015, Docker donated the OCI Specification to The Linux Foundation with a reference implementation called runc. Since 28 February 2019, it is an official CNCF project. Its general availability and intention to donate the project to CNCF was announced by Docker in 2017.

==Troubleshooting containers==

For debugging or troubleshooting on Linux nodes, you can interact with containerd using the portable command-line tool built for Kubernetes container runtimes: <code>crictl</code>. <code>crictl</code> supports common functionalities to view containers and images, read logs, and execute commands in the containers. Refer to the <code>crictl</code> [https://kubernetes.io/docs/tasks/debug/debug-cluster/crictl/ user guide] for the complete set of supported features and usage information.

View container logs with [[systemd]]:
<pre>
$ journalctl -u containerd
</pre>

==See also==
* [[Docker]]

==External links==
* [https://containerd.io/ Official website]
* [https://github.com/kubernetes-sigs/cri-tools/releases Download latest release(s) of cri-tools]

[[Category:Technical and Specialized Skills]]
[[Category:Linux Command Line Tools]]
[[Category:DevOps]]

@@ Line 4: / Line 4: @@
 <code>crictl</code> is a command-line interface for CRI-compatible container runtimes. You can use it to inspect and debug container runtimes and applications on a [[Kubernetes]] node. <code>crictl</code> and its source are hosted in the [https://github.com/kubernetes-sigs/cri-tools/releases cri-tools] repository.
 ===Installing===
@@ Line 13: / Line 11: @@
 Download a compressed archive <code>crictl</code> from the [https://github.com/kubernetes-sigs/cri-tools/releases cri-tools release page], for several different architectures. Download the version that corresponds to your version of Kubernetes. Extract it and move it to a location on your system path, such as <code>/usr/local/bin/</code>.
+==Containerd and Kubernetes==
-−
-==Containerd and Kubernetes]]
 Kubernetes nodes use the ''container runtime'' to launch, manage, and stop containers running in Pods. The Kubernetes project is removing built-in support for the Docker runtime in Kubernetes version 1.24 and later. To achieve this, Kubernetes is removing a component called ''dockershim'', which allows Docker to communicate with Kubernetes components like the kubelet.

← Older revision		Revision as of 21:07, 18 January 2023
Line 1:		Line 1:
	'''Containerd''' is an industry-standard core container runtime. It is currently available as a daemon for Linux and Windows, which can manage the complete container lifecycle of its host system. In 2015, Docker donated the OCI Specification to The Linux Foundation with a reference implementation called runc. Since 28 February 2019, it is an official CNCF project. Its general availability and intention to donate the project to CNCF was announced by Docker in 2017.		'''Containerd''' is an industry-standard core container runtime. It is currently available as a daemon for Linux and Windows, which can manage the complete container lifecycle of its host system. In 2015, Docker donated the OCI Specification to The Linux Foundation with a reference implementation called runc. Since 28 February 2019, it is an official CNCF project. Its general availability and intention to donate the project to CNCF was announced by Docker in 2017.
		+
		+	==crictl==
		+
		+	<code>crictl</code> is a command-line interface for CRI-compatible container runtimes. You can use it to inspect and debug container runtimes and applications on a [[Kubernetes]] node. <code>crictl</code> and its source are hosted in the [https://github.com/kubernetes-sigs/cri-tools/releases cri-tools] repository.
		+
		+
		+
		+	===Installing===
		+
		+	NOTE: <code>crictl</code> requires a Linux operating system with a CRI runtime.
		+
		+	Download a compressed archive <code>crictl</code> from the [https://github.com/kubernetes-sigs/cri-tools/releases cri-tools release page], for several different architectures. Download the version that corresponds to your version of Kubernetes. Extract it and move it to a location on your system path, such as <code>/usr/local/bin/</code>.
		+
		+
		+
		+	==Containerd and Kubernetes]]
		+
		+	Kubernetes nodes use the ''container runtime'' to launch, manage, and stop containers running in Pods. The Kubernetes project is removing built-in support for the Docker runtime in Kubernetes version 1.24 and later. To achieve this, Kubernetes is removing a component called ''dockershim'', which allows Docker to communicate with Kubernetes components like the kubelet.
		+
		+	The containerd runtime is an industry-standard container runtime that is supported by Kubernetes, and used by many other projects. The containerd runtime provides the layering abstraction that allows for the implementation of a rich set of features like gVisor and Image streaming to extend GKE functionality.
		+
		+	The containerd runtime is considered more resource efficient and secure than the Docker runtime.

	==Troubleshooting containers==		==Troubleshooting containers==