SingularityContainerCreation: Difference between revisions
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== Creation of a container using a definition file == | == Creation of a container using a definition file == | ||
A definition file is a recipe to build a container starting from something else, generally another Singularity or Docker container. Let's create a definition file 'test1.def' with the following content : | A definition file is a recipe to build a container starting from something else, generally another Singularity or Docker container. Let's create a definition file 'test1.def' with the following content : | ||
<pre> | |||
Bootstrap: docker | Bootstrap: docker | ||
From: centos:latest | From: centos:latest | ||
</pre> | |||
The first line indicates that we will use a container from [https://hub.docker.com/explore/ Docker hub], the second line specifies which container (the latest release of CentOS). | |||
Revision as of 15:21, 30 October 2018
Prerequisites
By default, ordinary users don't have the right to create Singularity containers. You must either do it as root, or to work with sudoer account (the best option !).
Creation of a containers
On this page, we will not explain all the methods that exist to build a container, this is already done here. Instead, we will illustrate one method that can rapidly be adopted.
Creation of a container using a definition file
A definition file is a recipe to build a container starting from something else, generally another Singularity or Docker container. Let's create a definition file 'test1.def' with the following content :
Bootstrap: docker From: centos:latest
The first line indicates that we will use a container from Docker hub, the second line specifies which container (the latest release of CentOS).
Sources
- Singularity website -> explanations to build a container on this page.